Boone, Iowa Weather Conditions

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Current Conditions

  • 77°
  • Clear
  • Wind: Variable 5 mph
  • Humidity: 89%
  • Visibility: 10.0 miles
  • Dew Point: 73°
  • Pressure: 29.83 in. -

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Next 12 Hours

7  pm
10  pm
1  am
4  am
7  am
Partly Cloudy
Partly Cloudy
Chance of a Thunderstorm
Chance of T-storms
Chance of a Thunderstorm
Chance of T-storms
Chance of a Thunderstorm
Chance of T-storms
Chance of a Thunderstorm
Chance of T-storms
79°
73°
73°
73°
72°
Forecast data from the National Digital Forecast Database.

5 Day Forecast

  • Wednesday
  • Chance of a Thunderstorm
  • High: 86 °
  • Low: 72 °
  • Chance of T-Storms
  • Thursday
  • Chance of a Thunderstorm
  • High: 88 °
  • Low: 72 °
  • Chance of a Thunderstorm
  • Friday
  • Chance of a Thunderstorm
  • High: 90 °
  • Low: 70 °
  • Chance of a Thunderstorm
  • Saturday
  • Partly Cloudy
  • High: 88 °
  • Low: 68 °
  • Partly Cloudy
  • Sunday
  • Chance of a Thunderstorm
  • High: 82 °
  • Low: 66 °
  • Chance of T-Storms

Forecast for Boone, Iowa

Updated: 4:00 PM CDT on August 20, 2014

  • Wednesday

    Partly cloudy with a chance of a thunderstorm and a chance of rain. High of 86F. Winds from the SE at 5 to 15 mph. Chance of rain 90%.

  • Wednesday Night

    Partly cloudy with a chance of a thunderstorm and a chance of rain. Low of 72F. Winds from the SSE at 5 to 10 mph. Chance of rain 40%.

  • Thursday

    Overcast with a chance of a thunderstorm and a chance of rain in the morning, then partly cloudy. High of 88F with a heat index of 97F. Winds from the SSW at 5 to 10 mph. Chance of rain 20%.

  • Thursday Night

    Partly cloudy with a chance of a thunderstorm and a chance of rain. Low of 72F. Winds from the SSW at 5 to 10 mph. Chance of rain 30%.

  • Friday

    Partly cloudy with a chance of a thunderstorm and a chance of rain. High of 90F with a heat index of 97F. Winds from the SE at 5 to 10 mph. Chance of rain 20%.

  • Friday Night

    Partly cloudy with a chance of a thunderstorm and a chance of rain in the evening, then overcast with a chance of a thunderstorm and rain. Low of 70F. Winds from the SE at 5 to 10 mph. Chance of rain 40%.

  • Saturday

    Overcast. High of 88F with a heat index of 97F. Winds from the South at 5 to 10 mph.

  • Saturday Night

    Partly cloudy with a chance of a thunderstorm and rain after midnight. Fog overnight. Low of 68F. Winds from the South at 5 to 10 mph. Chance of rain 20%.

  • Sunday

    Mostly cloudy with a chance of a thunderstorm and rain. High of 82F. Winds from the SSW at 5 to 10 mph. Chance of rain 30%.

  • Sunday Night

    Mostly cloudy. Low of 66F. Winds from the South at 5 to 10 mph.

  • Monday

    Mostly cloudy. High of 79F. Winds from the SW at 5 to 10 mph.

  • Monday Night

    Overcast with a chance of a thunderstorm. Fog overnight. Low of 63F. Winds less than 5 mph. Chance of rain 50% with rainfall amounts near 0.4 in. possible.

  • Tuesday

    Overcast with a chance of a thunderstorm. Fog early. High of 75F. Winds from the SSE at 5 to 10 mph. Chance of rain 40%.

  • Tuesday Night

    Overcast. Fog overnight. Low of 63F. Winds from the SSE at 5 to 10 mph.

  • Wednesday

    Overcast with a chance of a thunderstorm. Fog early. High of 77F. Winds from the SSW at 5 to 10 mph. Chance of rain 70% with rainfall amounts near 0.3 in. possible.

  • Wednesday Night

    Partly cloudy with a chance of a thunderstorm. Fog overnight. Low of 50F. Winds from the NW at 5 to 10 mph. Chance of rain 40% with rainfall amounts near 0.2 in. possible.

  • Thursday

    Clear. High of 72F. Winds from the NNW at 5 to 10 mph.

  • Thursday Night

    Clear. Low of 54F. Winds less than 5 mph.

  • Friday

    Clear. High of 72F. Winds less than 5 mph.

  • Friday Night

    Clear. Low of 54F. Winds less than 5 mph.

  • Saturday

    Clear. High of 72F. Winds less than 5 mph.

  • Saturday Night

    Clear. Low of 54F. Winds less than 5 mph.

  • Sunday

    Clear. High of 75F. Winds less than 5 mph.

  • Sunday Night

    Clear. Low of 54F. Winds less than 5 mph.

Severe Weather Alert Descriptions

 Record Report  Statement as of 5:05 PM CDT on August 20, 2014


... Record daily rainfall for Des Moines tied today...

The Des Moines International Airport has reported 2.10 inches of
rainfall so far today. This ties the previous record daily rainfall
for this date set back in 1891.



Personal Weather Stations

Personal Weather Stations [Add your weather station!]

Location: MesoWest AMES IA US SCAN, Ames, IA

Updated: 6:00 PM CDT

Temperature: 77 °F Dew Point: 73 °F Humidity: 87% Wind: SE at 1 mph Pressure: - Hourly Precipitation: 0.00 in Heat Index: 78 °F Graphs

Location: MesoWest ONTAR1 IA US UPR, Ames, IA

Updated: 5:45 PM CDT

Temperature: 74 °F Dew Point: - Humidity: - Wind: Calm Pressure: - Hourly Precipitation: 0.00 in Heat Index: 72 °F Graphs

Location: Northridge, Ames, IA

Updated: 7:18 PM CDT

Temperature: 77.4 °F Dew Point: 74 °F Humidity: 89% Wind: East at 1.7 mph Pressure: 29.81 in Hourly Precipitation: - Heat Index: 79 °F Graphs

Location: MesoWest BEAVR1 IA US UPR, Beaver, IA

Updated: 6:15 PM CDT

Temperature: 76 °F Dew Point: - Humidity: - Wind: Calm Pressure: - Hourly Precipitation: 0.00 in Heat Index: 74 °F Graphs

Location: SE side of Madrid, IA, Madrid, IA

Updated: 7:21 PM CDT

Temperature: 78.8 °F Dew Point: 74 °F Humidity: 85% Wind: Calm Pressure: 29.76 in Hourly Precipitation: 0.00 in Heat Index: 82 °F Graphs

Location: Garden District, Ames, IA

Updated: 7:20 PM CDT

Temperature: 76.5 °F Dew Point: 65 °F Humidity: 67% Wind: Calm Pressure: 29.99 in Hourly Precipitation: 0.00 in Heat Index: 78 °F Graphs

Location: Rural Stanhope, Stanhope, IA

Updated: 7:21 PM CDT

Temperature: 74.1 °F Dew Point: 74 °F Humidity: 99% Wind: South at 2.2 mph Pressure: 30.03 in Hourly Precipitation: 0.00 in Heat Index: 70 °F Graphs

Location: Prairie Ridge, Story City, IA

Updated: 7:16 PM CDT

Temperature: 77.4 °F Dew Point: 73 °F Humidity: 86% Wind: South at 3.8 mph Pressure: 29.80 in Hourly Precipitation: 0.00 in Heat Index: 79 °F Graphs

Location: White Oak Ln, Granger, IA

Updated: 7:08 PM CDT

Temperature: 81.1 °F Dew Point: 74 °F Humidity: 80% Wind: SE at 2.0 mph Pressure: 29.80 in Hourly Precipitation: 0.00 in Heat Index: 87 °F Graphs

Location: Jester View Estates, Granger, IA

Updated: 7:20 PM CDT

Temperature: 79.1 °F Dew Point: 75 °F Humidity: 87% Wind: SSE at 2.0 mph Pressure: 29.74 in Hourly Precipitation: 0.00 in Heat Index: 83 °F Graphs

Location: MesoWest GRANT IA US UPR, Nevada, IA

Updated: 4:55 PM CDT

Temperature: 72 °F Dew Point: - Humidity: - Wind: Calm Pressure: - Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: SBALDNERFARMS, Dallas Center, IA

Updated: 7:16 PM CDT

Temperature: 79.0 °F Dew Point: 75 °F Humidity: 87% Wind: ESE at 4.0 mph Pressure: 29.82 in Hourly Precipitation: 0.00 in Heat Index: 83 °F Graphs

MSN Maps of:

Temp: Dew Point: Humidity Wind Pressure Hr Precip -

NWS Forecaster Discussion




Area forecast discussion 
National Weather Service Des Moines Iowa 
620 PM CDT Wednesday Aug 20 2014 


Short term /tonight/... 
issued at 340 PM CDT Wednesday Aug 20 2014 


Tonights forecast is quite difficult and the models are not much 
help. A warm front across Iowa stretches from a low over west 
central South Dakota. Theta-E advection and some modest instability 
kept thunderstorms festering ahead of the frontal boundary all day 
long and shear actually increased through the afternoon hours. The 
models continue the showers/storms along and ahead of the frontal 
boundary in a zone of warm advection through the afternoon hours 
into early evening. The hrrr and hopwrf then squelch the precipitation in 
Iowa overnight while the NAM continues to develop storms across 
north Central/Northeast Iowa...especially with a low level jet that 
intensifies later this evening. It is very hard to say where that 
boundary will lift to this evening...or will it remain fairly 
stationary. I am reasonably certain that we will not be dry across 
the north but I am skeptical about keeping 60-70 probability of precipitation in that area 
given the trends for the precipitation to slowly lift north. 


The main adjustments to the going forecast were to lower probability of precipitation some 
across the north and mention heavy rain across a part of the north 
central and northeast. However...if the nam12 is correct my 
forecast will need to be adjusted once the low level jet comes into play after 
03z or so as higher probability of precipitation will be needed further south. Heavy 
rainfall will also be more of a concern across areas north of 
Highway 20. 


Long term /Thursday through Wednesday/... 
issued at 340 PM CDT Wednesday Aug 20 2014 


Relatively active conditions to persist for much of the long term 
with broad west-southwest flow aloft and surface boundary nearby. Any ongoing 
convection on Thursday morning should dissipate with forcing 
weakening. Warm sector will be in place with temperatures climbing 
nicely through the day. Still may see some middle to high clouds 
overhead and this may limit daytime highs...however still a very 
warm and humid day expected for most locations. Surface boundary 
will ease into northern Iowa on Thursday night with some scattered 
convection expected along the front overnight. These storms are 
expected to weaken overnight toward daybreak as inflow weakens and 
col region pushes into the state. Friday will see the col pass 
through Iowa with limited convection chances for much of the day. 
However...a more vigorous shortwave will eject into the plains 
later Friday with increasing flow into the front late Friday into 
Friday night. Models have all been indicating rather robust 
convection by late Friday across the plains pushing into Iowa 
overnight. Have continued the higher probability of precipitation on Friday 
night...especially across the northwest where the best forcing and 
inflow into system is anticipated. The threat for convection will 
persist into the weekend and early next week as the frontal 
boundary remains near the state. At this point...it appears much 
of the convection this weekend will be near northern Iowa with hot 
and humid conditions in the south. The bulk of the system is not 
expected to pass through the region until the middle of next week 
when good coverage of storms is anticipated Tuesday night into 
Wednesday. Temperatures will remain very warm to hot south of the 
boundary during this time. 


The threat for heavy rainfall will be ever present with this 
convection for much of the forecast. Precipitable water values will in general 
be at or above 1.50" with convection east or southeast and 
training a possibility from time to time. While widespread 
flooding is not expected given mature vegetative 
growth...localized flooding may occur. The primary flash flood 
threat will remain in urban areas. However...if several nights of 
rain do occur in the same area...a more generalized flash flood 
threat may materialize. 


The other concern will be with hot and humid conditions south of 
the boundary. Heat index values are expected to climb above 100 
degrees from time to time and may become problematic...especially 
in southern Iowa should several day string together of hot and 
sticky conditions. Much will depend on the extend of convection 
and where outflow boundarys and subsequent convection end up. At 
this point...given the uncertainty...no headlines for heat will be 
issued. 


&& 


Aviation...21/00z 
issued at 614 PM CDT Wednesday Aug 20 2014 


Disturbance pushing eastward will bring chances for rain showers/thunderstorms and rain to 
northern sites through 12z. Have included mention at 
kdsm/kfod/kmcw/Kalo. Conditions will drop to MVFR or IFR at times 
with thunderstorms and rain. In addition...br/fg may reduce visibilities further 
near 12z. Winds will remain stronger...and have only brought 
visibilities down to IFR at this time. Have left kotm out with 
precipitation further north. Winds will remain southerly through 
Thursday and may be gusty after 18z. 


&& 


Dmx watches/warnings/advisories... 
none. 


&& 


$$ 


Short term...fab 
long term...cogil 
aviation...awb 






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