National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Grinnell Municipal Airfield (KGGI)

Lat: 41.71°NLon: 92.73°WElev: 1007ft.

Heavy Rain

73°F

23°C

Humidity 100%
Wind Speed SE 8 mph
Barometer 29.97 in
Dewpoint 73°F (23°C)
Visibility 4.00 mi
Last update 26 Jul 7:55 am CDT
Extended Forecast for

4 Miles N New Sharon IA

Extreme Heat Watch July 27, 12:00pm until July 27, 08:00pm
Flood Watch July 26, 08:01am until July 26, 12:00pm
Click here for hazard details and duration
Extreme Heat Watch
Flood Watch
  •  
    Flood Watch July 26, 08:01am until July 26, 12:00pm

    NOW until 12:00pm Sat

    Flood Watch

  • Today

    High: 84 °F

    Chance
    T-storms then
    Slight Chance
    T-storms

  • Tonight

    Tonight: Partly cloudy, with a low around 72. Light and variable wind.

    Low: 72 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 90. Heat index values as high as 105. Calm wind becoming south around 5 mph in the afternoon.

    High: 90 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 75. South wind 3 to 5 mph.

    Low: 75 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 95. Southwest wind around 6 mph.

    High: 95 °F

    Sunny

  • Monday Night

    Monday Night: A 20 percent chance of showers and thunderstorms after 1am. Mostly clear, with a low around 73.

    Low: 73 °F

    Mostly Clear
    then Slight
    Chance
    T-storms

  • Tuesday

    Tuesday: A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 92.

    High: 92 °F

    Slight Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 69.

    Low: 69 °F

    Chance
    T-storms

Detailed Forecast

Today
A 50 percent chance of showers and thunderstorms, mainly before 11am. Mostly cloudy, then gradually becoming sunny, with a high near 84. Southeast wind around 6 mph becoming south southwest in the afternoon. New rainfall amounts between a quarter and half of an inch possible.
Tonight
Partly cloudy, with a low around 72. Light and variable wind.
Sunday
Mostly sunny, with a high near 90. Heat index values as high as 105. Calm wind becoming south around 5 mph in the afternoon.
Sunday Night
Mostly clear, with a low around 75. South wind 3 to 5 mph.
Monday
Sunny, with a high near 95. Southwest wind around 6 mph.
Monday Night
A 20 percent chance of showers and thunderstorms after 1am. Mostly clear, with a low around 73.
Tuesday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 92.
Tuesday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 69.
Wednesday
Showers likely and possibly a thunderstorm before 1pm, then a chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 81. Chance of precipitation is 60%.
Wednesday Night
A 30 percent chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 62.
Thursday
Partly sunny, with a high near 75.
Thursday Night
Mostly cloudy, with a low around 58.
Friday
Mostly sunny, with a high near 75.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles N New Sharon IA
 41.53°N 92.67°W
Last Update:
6:34 am CDT Jul 26, 2025
Forecast Valid:
8am CDT Jul 26, 2025-6pm CDT Aug 1, 2025
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation