Fountain Hills, Arizona Weather Conditions

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Current Conditions

  • 79°
  • Clear
  • Wind: Calm
  • Humidity: 13%
  • Visibility: 10.0 miles
  • Dew Point: 23°
  • Pressure: 30.09 in. +

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Next 12 Hours

6  pm
9  pm
12  am
3  am
6  am
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
76°
66°
61°
57°
54°
Forecast data from the National Digital Forecast Database.

5 Day Forecast

  • Tuesday
  • Clear
  • High: 82 °
  • Low: 53 °
  • Clear
  • Wednesday
  • Clear
  • High: 83 °
  • Low: 52 °
  • Clear
  • Thursday
  • Clear
  • High: 84 °
  • Low: 53 °
  • Clear
  • Friday
  • Clear
  • High: 86 °
  • Low: 54 °
  • Clear
  • Saturday
  • Clear
  • High: 87 °
  • Low: 56 °
  • Clear

Forecast for Fountain Hills, Arizona

Updated: 3:00 PM MST on January 08, 2016

  • Monday

    Sunny. High 82F. Winds light and variable.

  • Monday Night

    Clear skies. Low 53F. Winds NE at 5 to 10 mph.

  • Tuesday

    Mainly sunny. High 82F. Winds ENE at 5 to 10 mph.

  • Tuesday Night

    Clear. Low 53F. Winds NE at 5 to 10 mph.

  • Wednesday

    Mostly sunny skies. High 83F. Winds light and variable.

  • Wednesday Night

    Some clouds early will give way to generally clear conditions overnight. Low 52F. Winds light and variable.

  • Thursday

    Mainly sunny. High 84F. Winds light and variable.

  • Thursday Night

    A mostly clear sky. Low 53F. Winds light and variable.

  • Friday

    Mainly sunny. High 86F. Winds light and variable.

  • Friday Night

    Clear skies. Low 54F. Winds light and variable.

  • Saturday

    Sunny skies. High 87F. Winds light and variable.

  • Saturday Night

    Partly cloudy. Low 56F. Winds light and variable.

  • Sunday

    Partly cloudy. High near 85F. Winds light and variable.

  • Sunday Night

    Partly cloudy skies. Low 56F. Winds light and variable.

  • Monday

    Sun and a few passing clouds. High 81F. Winds light and variable.

  • Monday Night

    Mostly clear skies. Low around 55F. Winds light and variable.

  • Tuesday

    Sunshine along with some cloudy intervals. High 81F. Winds light and variable.

  • Tuesday Night

    Mainly clear skies. Low around 55F. Winds light and variable.

  • Wednesday

    Sunshine and clouds mixed. High 81F. Winds light and variable.

  • Wednesday Night

    Partly cloudy. Low near 55F. Winds light and variable.

  • Thursday

    Cloudy with a few showers. High 77F. Winds SW at 5 to 10 mph. Chance of rain 30%.

  • Thursday Night

    A few clouds from time to time. Low 54F. Winds light and variable.

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NWS Forecaster Discussion




Area forecast discussion 
National Weather Service Phoenix Arizona 
225 PM MST Monday Feb 8 2016 


Synopsis...high pressure will remain the dominant weather feature 
over the southwestern United States this week. This will result in a 
prolonged period of sunny skies...above normal temperatures... 
relatively light winds...and low humidity. 


&& 


Discussion... 


Through Friday... 


An anomalously strong high pressure system built over the region 
last night and will remain stationary this week. Temperatures on the 
lower deserts will warm into the 80s. However...a developing 
subtropical like low pressure system will continue to track well 
south of Arizona...moving east across central Baja California today into north 
central mex south of El Paso on Tuesday. A resulting north/south 
pressure gradient will continue the north/northeast breezes across 
the region...particularly down the Colorado River valley the 
remainder of the afternoon and evening. Lighter winds are forecast 
on Tuesday. 




This weekend... 


Again...steady state unseasonably warm afternoons...in the 80s over 
the lower deserts...will continue into the weekend. However...the 
high pressure system will break down Saturday as a much weakened 
Pacific disturbance is forecast to move across northern Arizona. Of much 
greater interest...is a sheared portion of this Pacific system 
forming a cutoff low off the San Diego coast Sunday...deepening 
south to offshore southern Baja California Monday...near the northern edges of 
warm El Nino waters. In comparison...we remember during the 1991- 
1992 El Nino event...cutoff lows in this El Nino region spun up 
incredibly fast due to the phasing of a subtropical jetstream. This 
resulted in appreciable rains on the southern Arizona deserts. Perhaps 
rain is in the offing next Monday and Tuesday which is a little 
beyond this 7 day forecast. 


&& 


Aviation... 
south-central Arizona including kphx...kiwa...and ksdl... 


Expect east and northeasterly surface winds to prevail today through 
Tuesday being at their strongest midday and early afternoon...gusts 
15-20 kts occasionally...but otherwise remain below 10 kts at other 
times. Anticipate some light and variable conditions from time to 
time...especially late afternoon and evening. In the lower levels 
above the surface winds will be solidly from the east- northeast. 
Also in that layer...but within 1-2 kft above ground level...speeds will strengthen 
again tonight to about 20 kts. Expect this situation to remain below 
criteria for mention of low level wind shear in the tafs. Otherwise...clear skies 
except for some cirrus passing to the south. 


Southeast California/southwest Arizona including kipl and kblh... 


Expect northerly surface winds to prevail through Tuesday being at 
their strongest this afternoon over the lower Colorado River valley 
with gusts to 20 kts. Anticipate some locations to have light and 
variable conditions favoring typical drainage patterns overnight and 
in the morning hours. Otherwise...clear skies except for some cirrus 
passing to the south. 


Aviation discussion not updated for amended tafs. 


&& 


Fire weather... 


Wednesday through Sunday...an unseasonably strong high pressure 
ridge will build over the western states during the week. This will 
lead to a persistent period of well above normals high temperatures 
..with readings peaking 10 to 15 degrees above seasonal normals. 
Many lower elevation and desert sites will see a stretch of days 
with high temperatures warming past the 80 degree mark. Rh's will 
also remain on the drier and below normal side during the week with 
min values typically in the low to middle teens. 


Locally breezy conditions along the Colorado River valley are expected 
each afternoon. More noticeable easterly winds will flow into the 
south-central Arizona deserts...with elevated winds over ridgetops and 
gaps to the North/East of Phoenix. Winds elsewhere will generally 
follow typical drainage/slope driven headings with light speeds. By 
weeks end the upper ridge will begin to shift to our east as 
troughing aligns itself over the West Coast again. Some very slight 
temperature cooling and increasing cloudiness are likely over the 
weekend. 


&& 


Climate... 
Phoenix | Yuma 
forecast | record (year) | forecast | record (year) 


Monday Feb 8 83 | 86 (1970) | 81 | 88 (1996) 
Tuesday Feb 9 83 | 84 (1987) | 83 | 90 (2015) 
Wednesday Feb 10 83 | 87 (1951) | 83 | 93 (1951) 
Thursday Feb 11 83 | 83 (1951) | 84 | 86 (1971) 


&& 


Spotter information statement... 
spotters are encouraged to report based on Standard operating 
procedures. 


&& 


Psr watches/warnings/advisories... 
Arizona...none. 
California...none. 
&& 


$$ 


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


Discussion...vasquez 
climate......Nolte 
aviation...aj 
fire weather...Nolte/cb 



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