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.

Fair

47°F

8°C

Humidity 53%
Wind Speed Calm
Barometer 29.74 in
Dewpoint 31°F (-1°C)
Visibility 10.00 mi
Last update 7 Jan 5:55 pm CST
Extended Forecast for

2 Miles WNW Deep River IA

  • Tonight

    Tonight: Increasing clouds, with a low around 36. South wind 6 to 8 mph.

    Low: 36 °F

    Increasing
    Clouds

  • Thursday

    Thursday: Rain, mainly after noon. High near 48. South southeast wind 6 to 11 mph becoming east in the afternoon. Winds could gust as high as 18 mph. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.

    High: 48 °F

    Chance Rain
    then Rain

  • Thursday Night

    Thursday Night: Rain likely, mainly before midnight. Cloudy, with a low around 34. South southeast wind around 11 mph becoming northwest in the evening. Winds could gust as high as 20 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 34 °F

    Rain Likely
    then Chance
    Rain

  • Friday

    Friday: A slight chance of rain and snow before 9am, then a slight chance of snow between 9am and noon, then a slight chance of rain after noon. Partly sunny, with a high near 41. North wind 7 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.

    High: 41 °F

    Slight Chance
    Rain/Snow
    then Slight
    Chance Rain

  • Friday Night

    Friday Night: A slight chance of rain before 9pm, then a chance of rain and snow between 9pm and 3am, then a chance of snow after 3am. Mostly cloudy, with a low around 29. North wind 6 to 9 mph. Chance of precipitation is 40%. New snow accumulation of less than a half inch possible.

    Low: 29 °F

    Chance
    Rain/Snow

  • Saturday

    Saturday: A 40 percent chance of snow. Partly sunny, with a high near 33. Breezy.

    High: 33 °F

    Chance Snow
    and Breezy

  • Saturday Night

    Saturday Night: A 20 percent chance of snow before midnight. Mostly cloudy, with a low around 17. Blustery.

    Low: 17 °F

    Blustery.
    Slight Chance
    Snow then
    Mostly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 28.

    High: 28 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 22.

    Low: 22 °F

    Partly Cloudy

Detailed Forecast

Tonight
Increasing clouds, with a low around 36. South wind 6 to 8 mph.
Thursday
Rain, mainly after noon. High near 48. South southeast wind 6 to 11 mph becoming east in the afternoon. Winds could gust as high as 18 mph. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.
Thursday Night
Rain likely, mainly before midnight. Cloudy, with a low around 34. South southeast wind around 11 mph becoming northwest in the evening. Winds could gust as high as 20 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.
Friday
A slight chance of rain and snow before 9am, then a slight chance of snow between 9am and noon, then a slight chance of rain after noon. Partly sunny, with a high near 41. North wind 7 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.
Friday Night
A slight chance of rain before 9pm, then a chance of rain and snow between 9pm and 3am, then a chance of snow after 3am. Mostly cloudy, with a low around 29. North wind 6 to 9 mph. Chance of precipitation is 40%. New snow accumulation of less than a half inch possible.
Saturday
A 40 percent chance of snow. Partly sunny, with a high near 33. Breezy.
Saturday Night
A 20 percent chance of snow before midnight. Mostly cloudy, with a low around 17. Blustery.
Sunday
Mostly sunny, with a high near 28.
Sunday Night
Partly cloudy, with a low around 22.
Monday
Mostly sunny, with a high near 42.
Monday Night
Partly cloudy, with a low around 29.
Tuesday
Partly sunny, with a high near 43.
Tuesday Night
Mostly cloudy, with a low around 31.
Wednesday
Mostly cloudy, with a high near 35.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles WNW Deep River IA
 41.59°N 92.4°W
Last Update:
5:26 pm CST Jan 7, 2026
Forecast Valid:
6pm CST Jan 7, 2026-6pm CST Jan 14, 2026
 
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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