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

Grinnell Municipal Airfield (KGGI)

Lat: 41.71°NLon: 92.73°WElev: 1007ft.

Overcast and Breezy

32°F

0°C

Humidity 93%
Wind Speed W 24 G 30 mph
Barometer 29.86 in
Dewpoint 30°F (-1°C)
Visibility 10.00 mi
Wind Chill19°F (-7°C)
Last update 7 Mar 7:15 am CST
Extended Forecast for

Deep River IA

  • Today

    Today: Partly sunny, with a high near 47. Breezy, with a west northwest wind 11 to 20 mph, with gusts as high as 31 mph.

    High: 47 °F

    Partly Sunny
    and Breezy

  • Tonight

    Tonight: Mostly clear, with a low around 33. Southwest wind 8 to 14 mph, with gusts as high as 25 mph.

    Low: 33 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 62. Breezy, with a southwest wind 13 to 17 mph, with gusts as high as 25 mph.

    High: 62 °F

    Sunny then
    Sunny and
    Breezy

  • Sunday Night

    Sunday Night: Clear, with a low around 44. Southwest wind 13 to 15 mph, with gusts as high as 28 mph.

    Low: 44 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 68. Southwest wind 7 to 11 mph becoming west northwest in the afternoon. Winds could gust as high as 22 mph.

    High: 68 °F

    Sunny

  • Monday Night

    Monday Night: Clear, with a low around 42.

    Low: 42 °F

    Clear

  • Tuesday

    Tuesday: A slight chance of showers, then showers likely and possibly a thunderstorm after noon. Partly sunny, with a high near 66. Chance of precipitation is 60%.

    High: 66 °F

    Slight Chance
    Showers then
    Showers
    Likely

  • Tuesday Night

    Tuesday Night: Showers likely and possibly a thunderstorm before midnight, then a chance of showers. Cloudy, with a low around 35. Breezy. Chance of precipitation is 60%.

    Low: 35 °F

    Showers
    Likely and
    Breezy

  • Wednesday

    Wednesday: A chance of rain and snow showers before noon. Partly sunny, with a high near 48. Breezy. Chance of precipitation is 30%.

    High: 48 °F

    Breezy.
    Chance
    Rain/Snow
    then Mostly
    Sunny

Detailed Forecast

Today
Partly sunny, with a high near 47. Breezy, with a west northwest wind 11 to 20 mph, with gusts as high as 31 mph.
Tonight
Mostly clear, with a low around 33. Southwest wind 8 to 14 mph, with gusts as high as 25 mph.
Sunday
Sunny, with a high near 62. Breezy, with a southwest wind 13 to 17 mph, with gusts as high as 25 mph.
Sunday Night
Clear, with a low around 44. Southwest wind 13 to 15 mph, with gusts as high as 28 mph.
Monday
Sunny, with a high near 68. Southwest wind 7 to 11 mph becoming west northwest in the afternoon. Winds could gust as high as 22 mph.
Monday Night
Clear, with a low around 42.
Tuesday
A slight chance of showers, then showers likely and possibly a thunderstorm after noon. Partly sunny, with a high near 66. Chance of precipitation is 60%.
Tuesday Night
Showers likely and possibly a thunderstorm before midnight, then a chance of showers. Cloudy, with a low around 35. Breezy. Chance of precipitation is 60%.
Wednesday
A chance of rain and snow showers before noon. Partly sunny, with a high near 48. Breezy. Chance of precipitation is 30%.
Wednesday Night
Mostly clear, with a low around 26.
Thursday
Mostly sunny, with a high near 50.
Thursday Night
Mostly cloudy, with a low around 38. Breezy.
Friday
Mostly cloudy, with a high near 57. Breezy.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Deep River IA
 41.57°N 92.34°W
Last Update:
5:16 am CST Mar 7, 2026
Forecast Valid:
7am CST Mar 7, 2026-6pm CDT Mar 13, 2026
 
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