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

33°F

1°C

Humidity 79%
Wind Speed W 18 G 23 mph
Barometer 29.62 in
Dewpoint 28°F (-2°C)
Visibility 10.00 mi
Wind Chill22°F (-6°C)
Last update 16 Jan 8:55 am CST
Extended Forecast for

Deep River IA

Winter Weather Advisory until January 16, 09:00pm
Click here for hazard details and duration
Winter Weather Advisory
  •  
    Winter Weather Advisory until January 16, 09:00pm

    NOW until 9:00pm Fri

    Winter Weather Advisory

  • Today

    High: 34 °F⇓

    Scattered
    Snow Showers
    and Patchy
    Blowing Snow

  • Tonight

    Tonight: Scattered snow showers, mainly before 9pm. Patchy blowing snow before 8pm. Mostly cloudy, with a low around 10. Wind chill values as low as -5. Windy, with a northwest wind 16 to 21 mph, with gusts as high as 32 mph. Chance of precipitation is 30%. New snow accumulation of less than a half inch possible.

    Low: 10 °F

    Scattered
    Snow Showers
    and Patchy
    Blowing Snow

  • Saturday

    Saturday: Partly sunny, with a high near 14. Wind chill values as low as -5. Blustery, with a northwest wind 16 to 18 mph, with gusts as high as 28 mph.

    High: 14 °F

    Partly Sunny
    and Blustery

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 5. Wind chill values as low as -5. Northwest wind 9 to 15 mph becoming west southwest after midnight. Winds could gust as high as 24 mph.

    Low: 5 °F

    Partly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 28. Breezy, with a southwest wind 9 to 16 mph becoming west northwest in the afternoon. Winds could gust as high as 25 mph.

    High: 28 °F

    Partly Sunny
    then Partly
    Sunny and
    Breezy

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 2. Windy.

    Low: 2 °F

    Partly Cloudy
    and Windy

  • M.L.King Day

    M.L.King Day: Sunny, with a high near 14. Blustery.

    High: 14 °F

    Sunny and
    Blustery

  • Monday Night

    Monday Night: Mostly clear, with a low around 5.

    Low: 5 °F

    Mostly Clear

Detailed Forecast

Today
Scattered snow showers after 11am. Patchy blowing snow after 11am. Mostly cloudy, with a temperature rising to near 34 by 11am, then falling to around 26 during the remainder of the day. Windy, with a west northwest wind 18 to 23 mph, with gusts as high as 34 mph. Chance of precipitation is 50%. Total daytime snow accumulation of less than a half inch possible.
Tonight
Scattered snow showers, mainly before 9pm. Patchy blowing snow before 8pm. Mostly cloudy, with a low around 10. Wind chill values as low as -5. Windy, with a northwest wind 16 to 21 mph, with gusts as high as 32 mph. Chance of precipitation is 30%. New snow accumulation of less than a half inch possible.
Saturday
Partly sunny, with a high near 14. Wind chill values as low as -5. Blustery, with a northwest wind 16 to 18 mph, with gusts as high as 28 mph.
Saturday Night
Partly cloudy, with a low around 5. Wind chill values as low as -5. Northwest wind 9 to 15 mph becoming west southwest after midnight. Winds could gust as high as 24 mph.
Sunday
Partly sunny, with a high near 28. Breezy, with a southwest wind 9 to 16 mph becoming west northwest in the afternoon. Winds could gust as high as 25 mph.
Sunday Night
Partly cloudy, with a low around 2. Windy.
M.L.King Day
Sunny, with a high near 14. Blustery.
Monday Night
Mostly clear, with a low around 5.
Tuesday
Mostly sunny, with a high near 27.
Tuesday Night
Mostly cloudy, with a low around 18.
Wednesday
Partly sunny, with a high near 34.
Wednesday Night
Mostly cloudy, with a low around 16.
Thursday
Mostly sunny, with a high near 29.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Deep River IA
 41.57°N 92.37°W
Last Update:
4:51 am CST Jan 16, 2026
Forecast Valid:
9am CST Jan 16, 2026-6pm CST Jan 22, 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