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.

Overcast

7°C

44°F

Humidity 60%
Wind Speed E 24 km/h
Barometer 29.89 in
Dewpoint -1°C (31°F)
Visibility 16 km
Wind Chill3°C (37°F)
Last update 17 Nov 6:55 pm CST
Extended Forecast for

Deep River IA

  • Tonight

    Tonight: Rain likely and possibly a thunderstorm. Cloudy, with a low around 6. East southeast wind 16 to 24 km/h, with gusts as high as 39 km/h. Chance of precipitation is 70%. New precipitation amounts between 2.5 and 5 mm possible.

    Low: 6 °C

    Rain Likely

  • Tuesday

    Tuesday: A slight chance of drizzle before 9am, then a chance of rain between 9am and 11am. Mostly cloudy, with a high near 7. East wind 13 to 16 km/h becoming north northeast in the afternoon. Chance of precipitation is 30%. New precipitation amounts of less than 1 mm possible.

    High: 7 °C

    Chance Rain
    then Mostly
    Cloudy

  • Tuesday Night

    Tuesday Night: Cloudy, with a low around 3. Northeast wind 6 to 11 km/h becoming light east after midnight.

    Low: 3 °C

    Cloudy

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 10. Calm wind.

    High: 10 °C

    Mostly Cloudy

  • Wednesday Night

    Wednesday Night: A 20 percent chance of rain after midnight. Partly cloudy, with a low around 3. South southeast wind 3 to 8 km/h.

    Low: 3 °C

    Mostly Cloudy
    then Slight
    Chance Rain

  • Thursday

    Thursday: A 20 percent chance of rain. Partly sunny, with a high near 15.

    High: 15 °C

    Slight Chance
    Rain

  • Thursday Night

    Thursday Night: A 30 percent chance of rain, mainly after midnight. Mostly cloudy, with a low around 2.

    Low: 2 °C

    Chance Rain

  • Friday

    Friday: A 40 percent chance of rain. Mostly cloudy, with a high near 9.

    High: 9 °C

    Chance Rain

  • Friday Night

    Friday Night: A 30 percent chance of rain before midnight. Mostly cloudy, with a low around -2.

    Low: -2 °C

    Chance Rain
    then Partly
    Cloudy

Detailed Forecast

Tonight
Rain likely and possibly a thunderstorm. Cloudy, with a low around 6. East southeast wind 16 to 24 km/h, with gusts as high as 39 km/h. Chance of precipitation is 70%. New precipitation amounts between 2.5 and 5 mm possible.
Tuesday
A slight chance of drizzle before 9am, then a chance of rain between 9am and 11am. Mostly cloudy, with a high near 7. East wind 13 to 16 km/h becoming north northeast in the afternoon. Chance of precipitation is 30%. New precipitation amounts of less than 1 mm possible.
Tuesday Night
Cloudy, with a low around 3. Northeast wind 6 to 11 km/h becoming light east after midnight.
Wednesday
Mostly cloudy, with a high near 10. Calm wind.
Wednesday Night
A 20 percent chance of rain after midnight. Partly cloudy, with a low around 3. South southeast wind 3 to 8 km/h.
Thursday
A 20 percent chance of rain. Partly sunny, with a high near 15.
Thursday Night
A 30 percent chance of rain, mainly after midnight. Mostly cloudy, with a low around 2.
Friday
A 40 percent chance of rain. Mostly cloudy, with a high near 9.
Friday Night
A 30 percent chance of rain before midnight. Mostly cloudy, with a low around -2.
Saturday
Mostly sunny, with a high near 10.
Saturday Night
Partly cloudy, with a low around 1.
Sunday
Mostly sunny, with a high near 12.
Sunday Night
Partly cloudy, with a low around 2.
Monday
Mostly sunny, with a high near 12.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Deep River IA
 41.57°N 92.37°W
Last Update:
4:56 pm CST Nov 17, 2025
Forecast Valid:
7pm CST Nov 17, 2025-6pm CST Nov 24, 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