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.

Windy

29°F

-2°C

Humidity 90%
Wind Speed N 33 G 47 mph
Barometer 29.63 in
Dewpoint 26°F (-3°C)
Visibility NA
Wind Chill13°F (-11°C)
Last update 15 Mar 7:15 pm CDT
Extended Forecast for

3 Miles NNW Hartwick IA

Blizzard Warning March 15, 07:37pm until March 16, 07:00am
High Wind Warning March 15, 07:37pm until March 16, 04:00am
Click here for hazard details and duration
Blizzard Warning
High Wind Warning
  •  
    Blizzard Warning March 15, 07:37pm until March 16, 07:00am
    High Wind Warning March 15, 07:37pm until March 16, 04:00am

    NOW: Multiple hazards in effect

    Click HERE for Details

  • Tonight

    Low: 7 °F

    Snow and
    Blowing Snow

  • Monday

    Monday: A 30 percent chance of snow, mainly before 7am. Areas of blowing snow. Partly sunny, with a high near 15. Wind chill values as low as -15. Windy, with a northwest wind 23 to 30 mph, with gusts as high as 44 mph. New snow accumulation of less than a half inch possible.

    High: 15 °F

    Chance Snow
    and Areas
    Blowing Snow

  • Monday Night

    Monday Night: Partly cloudy, with a low around 2. Wind chill values as low as -10. Blustery, with a northwest wind 13 to 18 mph decreasing to 7 to 12 mph after midnight. Winds could gust as high as 29 mph.

    Low: 2 °F

    Partly Cloudy
    and Blustery
    then Mostly
    Clear

  • Tuesday

    Tuesday: A 20 percent chance of snow after 1pm. Mostly sunny, with a high near 26. Wind chill values as low as -10. Light and variable wind becoming south 5 to 9 mph in the afternoon.

    High: 26 °F

    Mostly Sunny
    then Slight
    Chance Snow

  • Tuesday Night

    Tuesday Night: Snow likely before 4am, then a slight chance of snow and sleet. Mostly cloudy, with a low around 20. South southeast wind 7 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 60%. New snow and sleet accumulation of less than one inch possible.

    Low: 20 °F

    Snow Likely
    then
    Snow/Sleet
    Likely

  • Wednesday

    Wednesday: Mostly sunny, with a high near 45.

    High: 45 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 33.

    Low: 33 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 55.

    High: 55 °F

    Mostly Sunny

Detailed Forecast

Tonight
Snow, mainly before 4am. Widespread blowing snow, mainly after 9pm. Low around 7. Wind chill values as low as -15. Very windy, with a northwest wind 31 to 36 mph, with gusts as high as 55 mph. Chance of precipitation is 100%. Total nighttime snow accumulation of 2 to 4 inches possible.
Monday
A 30 percent chance of snow, mainly before 7am. Areas of blowing snow. Partly sunny, with a high near 15. Wind chill values as low as -15. Windy, with a northwest wind 23 to 30 mph, with gusts as high as 44 mph. New snow accumulation of less than a half inch possible.
Monday Night
Partly cloudy, with a low around 2. Wind chill values as low as -10. Blustery, with a northwest wind 13 to 18 mph decreasing to 7 to 12 mph after midnight. Winds could gust as high as 29 mph.
Tuesday
A 20 percent chance of snow after 1pm. Mostly sunny, with a high near 26. Wind chill values as low as -10. Light and variable wind becoming south 5 to 9 mph in the afternoon.
Tuesday Night
Snow likely before 4am, then a slight chance of snow and sleet. Mostly cloudy, with a low around 20. South southeast wind 7 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 60%. New snow and sleet accumulation of less than one inch possible.
Wednesday
Mostly sunny, with a high near 45.
Wednesday Night
Partly cloudy, with a low around 33.
Thursday
Mostly sunny, with a high near 55.
Thursday Night
Mostly cloudy, with a low around 36.
Friday
Partly sunny, with a high near 70.
Friday Night
Partly cloudy, with a low around 41.
Saturday
Sunny, with a high near 66.
Saturday Night
Mostly clear, with a low around 40.
Sunday
Partly sunny, with a high near 60.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles NNW Hartwick IA
 41.81°N 92.37°W
Last Update:
6:03 pm CDT Mar 15, 2026
Forecast Valid:
7pm CDT Mar 15, 2026-6pm CDT Mar 22, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation