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

39°F

4°C

Humidity 85%
Wind Speed Calm
Barometer 30.00 in
Dewpoint 35°F (2°C)
Visibility 7.00 mi
Last update 5 Mar 1:35 am CST
Extended Forecast for

2 Miles SE Deep River IA

  • Overnight

    Overnight: A 30 percent chance of rain, mainly between 3am and 5am. Patchy fog after 4am. Otherwise, cloudy, with a low around 39. Light north northeast wind. New precipitation amounts of less than a tenth of an inch possible.

    Low: 39 °F

    Chance Rain
    and Patchy
    Fog

  • Thursday

    Thursday: Patchy fog before 10am. Otherwise, mostly cloudy, with a high near 59. Calm wind becoming east southeast around 5 mph in the afternoon.

    High: 59 °F

    Patchy Fog
    then Partly
    Sunny

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 3am. Low around 46. Southeast wind 5 to 13 mph, with gusts as high as 22 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 46 °F

    Mostly Cloudy
    then Showers

  • Friday

    Friday: Showers and possibly a thunderstorm before noon, then a chance of rain between noon and 3pm, then a chance of showers and thunderstorms after 3pm. High near 72. Breezy, with a south southwest wind 13 to 18 mph, with gusts as high as 28 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.

    High: 72 °F

    Breezy.
    Showers then
    Chance
    T-storms

  • Friday Night

    Friday Night: Showers and possibly a thunderstorm before midnight, then rain likely after midnight. Low around 36. Breezy, with a south wind 14 to 18 mph becoming west after midnight. Winds could gust as high as 28 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 36 °F

    Showers and
    Breezy

  • Saturday

    Saturday: Mostly sunny, with a high near 49. Breezy.

    High: 49 °F

    Partly Sunny
    and Breezy
    then Sunny

  • Saturday Night

    Saturday Night: Clear, with a low around 33.

    Low: 33 °F

    Clear

  • Sunday

    Sunday: Sunny, with a high near 62. Breezy.

    High: 62 °F

    Sunny then
    Sunny and
    Breezy

  • Sunday Night

    Sunday Night: Clear, with a low around 44.

    Low: 44 °F

    Clear

Detailed Forecast

Overnight
A 30 percent chance of rain, mainly between 3am and 5am. Patchy fog after 4am. Otherwise, cloudy, with a low around 39. Light north northeast wind. New precipitation amounts of less than a tenth of an inch possible.
Thursday
Patchy fog before 10am. Otherwise, mostly cloudy, with a high near 59. Calm wind becoming east southeast around 5 mph in the afternoon.
Thursday Night
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 3am. Low around 46. Southeast wind 5 to 13 mph, with gusts as high as 22 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Friday
Showers and possibly a thunderstorm before noon, then a chance of rain between noon and 3pm, then a chance of showers and thunderstorms after 3pm. High near 72. Breezy, with a south southwest wind 13 to 18 mph, with gusts as high as 28 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.
Friday Night
Showers and possibly a thunderstorm before midnight, then rain likely after midnight. Low around 36. Breezy, with a south wind 14 to 18 mph becoming west after midnight. Winds could gust as high as 28 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Saturday
Mostly sunny, with a high near 49. Breezy.
Saturday Night
Clear, with a low around 33.
Sunday
Sunny, with a high near 62. Breezy.
Sunday Night
Clear, with a low around 44.
Monday
Sunny, with a high near 71.
Monday Night
Mostly clear, with a low around 47.
Tuesday
Rain likely. Mostly sunny, with a high near 67. Breezy. Chance of precipitation is 60%.
Tuesday Night
Rain likely. Mostly cloudy, with a low around 31. Blustery. Chance of precipitation is 60%.
Wednesday
A chance of rain and snow. Partly sunny, with a high near 47. Breezy. Chance of precipitation is 40%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles SE Deep River IA
 41.57°N 92.34°W
Last Update:
1:21 am CST Mar 5, 2026
Forecast Valid:
1am CST Mar 5, 2026-6pm CDT Mar 11, 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