Fountain Hills, Arizona Weather Conditions

Severe Weather Alerts

Your Weather

To update your location please enter your ZIP code, city, state, airport code or country in the field below. Weather by E-mail: Forecast storm alerts. Weather E-Mail Alert Sign Up »

Current Conditions

  • 111°
  • Mostly Cloudy
  • Wind: Variable 7 mph
  • Humidity: 15%
  • Visibility: 40.0 miles
  • Dew Point: 54°
  • Pressure: 29.79 in. -
  • Heat Index: 110

Select a Section

Click a section below for more information.

Next 12 Hours

5  pm
8  pm
11  pm
2  am
5  am
Chance of a Thunderstorm
Chance of T-storms
Chance of a Thunderstorm
Chance of T-storms
Mostly Cloudy
Mostly Cloudy
Partly Cloudy
Partly Cloudy
Partly Cloudy
Partly Cloudy
108°
102°
93°
90°
90°
Forecast data from the National Digital Forecast Database.

5 Day Forecast

  • Wednesday
  • Chance of a Thunderstorm
  • High: 113 °
  • Low: 88 °
  • Chance of a Thunderstorm
  • Thursday
  • Partly Cloudy
  • High: 108 °
  • Low: 88 °
  • Partly Cloudy
  • Friday
  • Chance of a Thunderstorm
  • High: 108 °
  • Low: 88 °
  • Chance of a Thunderstorm
  • Saturday
  • Partly Cloudy
  • High: 104 °
  • Low: 86 °
  • Partly Cloudy
  • Sunday
  • Mostly Cloudy
  • High: 106 °
  • Low: 88 °
  • Mostly Cloudy

Forecast for Fountain Hills, Arizona

Updated: 2:00 PM MST on July 23, 2014

Excessive heat warning in effect until 8 PM MST Thursday...
  • Wednesday

    Overcast with a chance of a thunderstorm and a chance of rain in the afternoon. High of 111F. Winds from the SSE at 5 to 10 mph. Chance of rain 20%.

  • Wednesday Night

    Partly cloudy with a chance of a thunderstorm and a chance of rain. Low of 88F. Winds from the SE at 5 to 10 mph.

  • Thursday

    Partly cloudy. High of 108F. Winds from the ESE at 5 to 10 mph shifting to the South in the afternoon.

  • Thursday Night

    Partly cloudy. Low of 88F. Winds less than 5 mph.

  • Friday

    Partly cloudy with a chance of a thunderstorm and a chance of rain in the afternoon. High of 108F. Winds from the SW at 5 to 10 mph. Chance of rain 20%.

  • Friday Night

    Partly cloudy. Low of 88F. Winds from the West at 5 to 15 mph.

  • Saturday

    Partly cloudy. High of 104F. Winds from the West at 10 to 15 mph.

  • Saturday Night

    Mostly cloudy. Low of 86F. Winds from the West at 5 to 15 mph.

  • Sunday

    Overcast. High of 106F. Winds from the WNW at 5 to 15 mph.

  • Sunday Night

    Mostly cloudy with a chance of a thunderstorm. Low of 88F. Winds from the WNW at 5 to 10 mph shifting to the NE after midnight. Chance of rain 40%.

  • Monday

    Partly cloudy. High of 108F. Winds from the SSW at 5 to 15 mph.

  • Monday Night

    Partly cloudy with a chance of rain. Low of 86F. Winds from the NW at 5 to 15 mph shifting to the NE after midnight. Chance of rain 20%.

  • Tuesday

    Partly cloudy with a chance of rain. High of 106F. Winds from the SW at 5 to 15 mph. Chance of rain 20%.

  • Tuesday Night

    Partly cloudy. Low of 86F. Winds from the WNW at 5 to 15 mph.

  • Wednesday

    Overcast. High of 108F. Winds from the WSW at 5 to 20 mph.

  • Wednesday Night

    Partly cloudy with a chance of rain. Low of 86F. Winds from the West at 5 to 15 mph. Chance of rain 20%.

  • Thursday

    Mostly cloudy. High of 102F. Winds from the WSW at 5 to 10 mph.

  • Thursday Night

    Partly cloudy. Low of 81F. Winds less than 5 mph.

  • Friday

    Mostly cloudy with a chance of a thunderstorm. High of 100F. Winds less than 5 mph. Chance of rain 40%.

  • Friday Night

    Mostly cloudy with a chance of a thunderstorm. Low of 82F. Winds less than 5 mph. Chance of rain 40%.

  • Saturday

    Mostly cloudy with a chance of a thunderstorm. High of 100F. Winds less than 5 mph. Chance of rain 20%.

  • Saturday Night

    Partly cloudy. Low of 81F. Winds less than 5 mph.

  • Sunday

    Clear. High of 100F. Winds less than 5 mph.

Severe Weather Alert Descriptions

 Excessive Heat Warning  Statement as of 4:57 PM PDT on July 23, 2014/


... Excessive heat warning remains in effect until 8 PM MST /8 PM
PDT/ Thursday...

An excessive heat warning remains in effect until 8 PM MST /8 PM
PDT/ Thursday.

* Affected area... the greater Phoenix metropolitan area... the
southwest and west-central deserts in Arizona including
Parker... Yuma... Tacna... Gila Bend. The lower deserts in
southeast California including the Imperial Valley... and the
cities of el centro and Blythe.

* Temperature... afternoon temperatures Wednesday and Thursday
will range from 112 to 117 degrees across the lower deserts.
Overnight lows will be very warm... in the upper 80s to low 90s
at the warmest urban sites.

* Impacts... exceedingly high temperatures can cause heat related
illness... including death... more easily than an average Summer
day. Those working or playing outdoors... and those without air
conditioning are most vulnerable. Even healthy individuals are
at risk in these conditions.

Precautionary/preparedness actions...

Never leave kids or pets unattended in cars. Drink more water
than usual and avoid alcohol... sugar... and caffeine. When
outdoors... wear light colored clothing and a wide-brimmed hat to
keep your head and body cooler. Take frequent rest breaks in
shaded or air conditioned environments. Public places with air
conditioning include libraries... community centers... government
buildings... malls... and special Refuge stations.

Recognize the signs and symptoms of heat illness. Early symptoms
include things such as headache... thirst... and muscle cramps.
Serious symptoms include weakness... skin that is cool to the
touch... fast but weak pulse... nausea... and fainting. Severe
symptoms include hot and red dry skin... fast and strong pulse...
sweating that has stopped... and unconsciousness. Untreated heat
illness can lead to fatal heat stroke.

Stay cool... stay hydrated... stay informed.





 Air Quality Alert  Statement as of 11:28 am MST on July 22, 2014


... High pollution advisory for Maricopa County including the greater
Phoenix area Wednesday...

The Arizona department of environmental quality in Phoenix has issued
an ozone high pollution advisory for the greater Phoenix area for
Wednesday.

This means that forecast weather conditions combined with existing
ozone levels are expected to result in local maximum 8-hour ozone
concentrations that pose a health risk. Adverse health effects
increase as air quality deteriorates.

Ozone is an air contaminant which can cause breathing difficulties
for children as well as persons with respiratory problems. A decrease
in physical activity is recommended.

If it is a regularly scheduled work day... you are urged to car pool...
telecommute... or use mass transit.

The use of gasoline-powered equipment should be reduced or done late
in the day.

For details on this high pollution advisory for Maricopa County...
visit the adeq internet site at www.Azdeq.Gov or call 602-771-2367
for recorded forecast information.





1128 am MST Tue Jul 22 2014

... High pollution advisory for Maricopa County including the greater
Phoenix area Wednesday...

The Arizona department of environmental quality in Phoenix has issued
an ozone high pollution advisory for the greater Phoenix area for
Wednesday.

This means that forecast weather conditions combined with existing
ozone levels are expected to result in local maximum 8-hour ozone
concentrations that pose a health risk. Adverse health effects
increase as air quality deteriorates.

Ozone is an air contaminant which can cause breathing difficulties
for children as well as persons with respiratory problems. A decrease
in physical activity is recommended.

If it is a regularly scheduled work day... you are urged to car pool...
telecommute... or use mass transit.

The use of gasoline-powered equipment should be reduced or done late
in the day.

For details on this high pollution advisory for Maricopa County...
visit the adeq internet site at www.Azdeq.Gov or call 602-771-2367
for recorded forecast information.





Personal Weather Stations

Personal Weather Stations [Add your weather station!]

Location: Fountain Hills Blvd @ El Lago, Fountain Hills, AZ

Updated: 5:26 PM MST

Temperature: 108.0 °F Dew Point: 55 °F Humidity: 18% Wind: ENE at 2.0 mph Pressure: 29.64 in Hourly Precipitation: 0.00 in Heat Index: 107 °F Graphs

Location: MesoWest Fountain Hills AZ US, Fountain Hills, AZ

Updated: 4:45 PM MST

Temperature: 110 °F Dew Point: 49 °F Humidity: 14% Wind: SSW at 5 mph Pressure: 29.86 in Hourly Precipitation: 0.00 in Heat Index: 107 °F Graphs

Location: Ranch Highlands, Scottsdale, AZ

Updated: 5:27 PM MST

Temperature: 109.9 °F Dew Point: 57 °F Humidity: 18% Wind: East at 3.0 mph Pressure: 29.64 in Hourly Precipitation: 0.00 in Heat Index: 110 °F Graphs

Location: McDowell Mountain Ranch II, Scottsdale, AZ

Updated: 5:27 PM MST

Temperature: 109.9 °F Dew Point: 46 °F Humidity: 12% Wind: Calm Pressure: 29.83 in Hourly Precipitation: 0.00 in Heat Index: 106 °F Graphs

Location: McDowell Mtn Ranch, Scottsdale, AZ

Updated: 5:23 PM MST

Temperature: 109.6 °F Dew Point: 52 °F Humidity: 15% Wind: West at 3.8 mph Pressure: 29.82 in Hourly Precipitation: 0.00 in Heat Index: 107 °F Graphs

Location: Vista Del Rincon, Scottsdale, AZ

Updated: 5:26 PM MST

Temperature: 112.5 °F Dew Point: 59 °F Humidity: 18% Wind: Calm Pressure: 29.65 in Hourly Precipitation: 0.00 in Heat Index: 114 °F Graphs

Location: MesoWest Falcon Field AZ US, Mesa, AZ

Updated: 4:45 PM MST

Temperature: 110 °F Dew Point: 49 °F Humidity: 13% Wind: SSW at 4 mph Pressure: 29.81 in Hourly Precipitation: 0.00 in Heat Index: 107 °F Graphs

Location: Lost Canyon, Scottsdale, AZ

Updated: 5:26 PM MST

Temperature: 107.7 °F Dew Point: 56 °F Humidity: 18% Wind: West at 1.0 mph Pressure: 29.68 in Hourly Precipitation: 0.00 in Heat Index: 107 °F Graphs

Location: Rio Verde Foothills, Scottsdale, AZ

Updated: 5:23 PM MST

Temperature: 108.7 °F Dew Point: 40 °F Humidity: 10% Wind: North at 1.6 mph Pressure: 30.09 in Hourly Precipitation: 0.00 in Heat Index: 103 °F Graphs

Location: Power/McDowell, Mesa, AZ

Updated: 5:27 PM MST

Temperature: 107.8 °F Dew Point: 57 °F Humidity: 19% Wind: SSE at 1.0 mph Pressure: 29.20 in Hourly Precipitation: 0.00 in Heat Index: 108 °F Graphs

Location: McKellips & Val Vista, Mesa, AZ

Updated: 6:13 PM MDT

Temperature: 112.5 °F Dew Point: 63 °F Humidity: 21% Wind: SE at 6.8 mph Pressure: 29.84 in Hourly Precipitation: - Heat Index: 117 °F Graphs

Location: Apache Wells Park, Mesa, AZ

Updated: 5:25 PM MST

Temperature: 111.7 °F Dew Point: 45 °F Humidity: 11% Wind: SSE at 3.7 mph Pressure: 29.86 in Hourly Precipitation: 0.00 in Heat Index: 107 °F Graphs

Location: Paper Street, Scottsdale, AZ

Updated: 5:26 PM MST

Temperature: 116.3 °F Dew Point: 59 °F Humidity: 17% Wind: Calm Pressure: 29.87 in Hourly Precipitation: 0.00 in Heat Index: 119 °F Graphs

Location: Desert Uplands - Mesa, Mesa, AZ

Updated: 5:13 PM MST

Temperature: 111.0 °F Dew Point: 59 °F Humidity: 19% Wind: SSE at 2.7 mph Pressure: 29.70 in Hourly Precipitation: - Heat Index: 113 °F Graphs

Location: MCC Red Mountain, Mesa, AZ

Updated: 5:27 PM MST

Temperature: 109.4 °F Dew Point: 55 °F Humidity: 17% Wind: SSW at 4.0 mph Pressure: 28.27 in Hourly Precipitation: 0.00 in Heat Index: 109 °F Graphs

Location: Pima & Pinnacle Peak, Scottsdale, AZ

Updated: 5:25 PM MST

Temperature: 107.2 °F Dew Point: 53 °F Humidity: 17% Wind: Calm Pressure: 29.64 in Hourly Precipitation: 0.00 in Heat Index: 106 °F Graphs

Location: Northeast Mesa, Mesa, AZ

Updated: 5:20 PM MST

Temperature: 111.2 °F Dew Point: 56 °F Humidity: 16% Wind: Calm Pressure: 29.72 in Hourly Precipitation: 0.00 in Heat Index: 110 °F Graphs

Location: Central Scottsdale, AZ, Scottsdale, AZ

Updated: 6:27 PM MDT

Temperature: 109.9 °F Dew Point: 55 °F Humidity: 17% Wind: SSE at 2.0 mph Pressure: 29.58 in Hourly Precipitation: 0.00 in Heat Index: 109 °F Graphs

Location: APRSWXNET Scottsdale AZ US, Scottsdale, AZ

Updated: 5:00 PM MST

Temperature: 106 °F Dew Point: 66 °F Humidity: 28% Wind: North at 4 mph Pressure: 32.13 in Hourly Precipitation: 0.00 in Heat Index: 112 °F Graphs

Location: MesoWest Stewart Mountain Dam AZ US, Fort McDowell, AZ

Updated: 4:45 PM MST

Temperature: 109 °F Dew Point: 48 °F Humidity: 14% Wind: ENE at 5 mph Pressure: 29.83 in Hourly Precipitation: 0.00 in Heat Index: 106 °F Graphs

Location: Mesa, AZ

Updated: 5:19 PM MST

Temperature: 109.3 °F Dew Point: 57 °F Humidity: 18% Wind: Calm Pressure: 29.58 in Hourly Precipitation: - Heat Index: 109 °F Graphs

Location: Val Vista & University, Mesa, AZ

Updated: 5:15 PM MST

Temperature: 113.2 °F Dew Point: 56 °F Humidity: 16% Wind: ESE at 1.0 mph Pressure: 29.63 in Hourly Precipitation: 0.00 in Heat Index: 113 °F Graphs

Location: Mountain Bridge, Mesa, AZ

Updated: 5:24 PM MST

Temperature: 109.0 °F Dew Point: 55 °F Humidity: 17% Wind: Calm Pressure: 29.71 in Hourly Precipitation: 0.00 in Heat Index: 108 °F Graphs

Location: Lehi, Mesa, AZ

Updated: 5:23 PM MST

Temperature: 115.7 °F Dew Point: 50 °F Humidity: 12% Wind: SE at 2.2 mph Pressure: 29.64 in Hourly Precipitation: 0.00 in Heat Index: 113 °F Graphs

Location: Kierland, Scottsdale, AZ

Updated: 5:27 PM MST

Temperature: 110.7 °F Dew Point: 56 °F Humidity: 17% Wind: Calm Pressure: 29.60 in Hourly Precipitation: 0.00 in Heat Index: 110 °F Graphs

MSN Maps of:

Temp: Dew Point: Humidity Wind Pressure Hr Precip -

NWS Forecaster Discussion




Area forecast discussion 
National Weather Service Phoenix Arizona 
325 PM MST Wednesday Jul 23 2014 


Update...to aviation and fire weather discussions... 


&& 


Synopsis... 
a strong high pressure system is forecast to continue over the 
region this week...resulting in very hot temperatures through 
Friday. At same time...monsoon moisture will slowly increase over 
the area...with occasional cloudiness at times. Increased 
moisture...combined with several weak weather disturbances from 
Mexico...are forecast to increase the chance of afternoon and 
evening showers and thunderstorms...mainly across Arizona...this 
weekend and early next week. 


&& 


Discussion... 
tonight and Thursday... 
monsoon moisture has pushed a little deeper into southeast and south 
central Arizona the past 18 hours...but afternoon temperatures are still 
on track toward the 112 to 117 degree f mark on the deserts. An 
excessive heat warning remains posted through Thursday...although 
the appearance of more moisture...clouds...and possible convective 
outflows from Southeast Arizona could reduce the potential heating 
curve for Thursday...I.E. A few degrees below excessive heat warning 
criteria. For now...height and thickness values for Thursday support 
another potential heat warning day...and...modeled soundings for 
Phoenix forecast surface dewpoints to drop from 61f Thursday morning 
to 44f by late afternoon. Also...due to the unknown variability in 
moisture tonight and Thursday...we decided to keep the excessive 
heat warning going for Thursday although it might be marginal. 


Convective wise...a slight chance of showers and thunderstorms are 
expected this evening on the south central Arizona deserts...including 
Phoenix...with higher probabilities over the mountains east of 
Phoenix this evening. 


On Thursday...partly cloudy skies will cover the area...however a 
slight chance of late afternoon showers/thunderstorms will be confined to 
parts of southwest Arizona...and over the mountains east of Phoenix. 
Again the excessive heat warning continues for Thursday. 


Friday through Sunday... 
slightly cooler afternoon temperatures are forecast this period as 
the upper-level high weakens a bit...and a little more monsoon 
moisture spreads into the region. A better threat for afternoon and 
evening convection is expected...particularly Sunday through Tuesday 
as the possibility of minor upper level perturbations work into the 
area under southerly flow aloft. 


&& 


Climate... 


Record high temperature for the middle of the week. 


City July 23 July 24 July 25 
---- ------- ------- ------- 
Phoenix 114 in 2006 114 in 2006 115 in 1943 
Yuma 115 in 1959 117 in 1943 120 in 1943 


&& 


Aviation... 
south-central Arizona including kphx...kiwa...and ksdl... 
some easterly component to the winds will hold for the phx area 
terminals the rest of the afternoon...if not vrb out with speeds 
gnly 6kts or less. Hi-res models today all agreeing on gusty storm 
outflows moving into the phx metropolitan near 24/00z gnly from the east. 
Chances are better for storm outflows to impact the terminals moreso 
than organized storms. With such warm temperatures across the area 
today...not confident in strong storms making it to kphx...but ksdl 
and kiwa could at least have thunderstorms in the vicinity coverage. Debris clouds will fill 
into the region overnight...with broken-overcast ceilings at or above 12-15kft possible. 


Southeast California and southwest Arizona including kipl and kblh... 
monsoon storm coverage should mainly remain well east of kipl and 
kblh this afternoon and evening...with debris clouds more likely 
spreading in during the late evening and overnight. Could see 
scattered-broken coverage likely for kblh...with less for kipl. Kblh winds to 
maintain some southerly component through the evening...unless 
disrupted by a passing storm outflow. Vrb afternoon winds for kipl 
to become westerly overnight. 


Aviation discussion not updated for amended tafs. 


&& 


Fire weather... 
Saturday through Wednesday... 
slightly cooler afternoon high temperatures are expected through the 
period...as upper level high pressure weakens and slides further to 
the south. Even so...readings will still be slightly warmer than 
normal. An increase in moisture is possible as the high slips to the 
south...though minimum afternoon daily humidity levels will still 
dip below 20 percent. Overnight recovery should however be moderate 
to good. There will be a daily threat of thunderstorms...but these 
will be mainly concentrated in the higher terrain of eastern Arizona. 
Outflow boundaries moving into the lower deserts will be capable of 
producing strong wind gusts. Further west across southeast California...the chance 
for rain and thunderstorm impacts will be even lower. Winds to 
generally follow diurnal and terrain driven headings...with mostly 
light speeds. 


&& 


Psr watches/warnings/advisories... 


Arizona...excessive heat warning from Wednesday morning through Thursday 
evening azz020>023-025>028. 


California...excessive heat warning from Wednesday morning through Thursday 
evening caz031>033. 


&& 


$$ 


Visit US on facebook...twitter...and at weather.Gov/Phoenix 


Discussion...vasquez 
climate...percha 
aviation....Nolte 
fire weather...Nolte/McLane/Hirsch 



National Weather Service Glossary of Abbreviations

Non-Expanded Version (with abbreviations)

Powered by the Weather Underground, Inc.