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.

Fair

30°F

-1°C

Humidity 73%
Wind Speed Calm
Barometer 30.27 in
Dewpoint 22°F (-6°C)
Visibility 10.00 mi
Last update 11 Mar 11:35 pm CDT
Extended Forecast for

3 Miles NNW Hartwick IA

High Wind Warning March 12, 10:00pm until March 13, 10:00am
Click here for hazard details and duration
High Wind Warning

  • Tonight

    Tonight: Mostly clear, with a low around 25. West northwest wind around 7 mph.

    Low: 25 °F

    Mostly Clear

  • Thursday

    Thursday: Increasing clouds, with a high near 52. Windy, with a south southwest wind 5 to 10 mph increasing to 19 to 24 mph in the afternoon. Winds could gust as high as 37 mph.

    High: 52 °F

    Sunny then
    Mostly Cloudy
    and Windy

  • Thursday Night

    Thursday Night: Rain likely, mainly before 1am. Mostly cloudy, with a low around 32. Windy, with a south southwest wind 23 to 28 mph becoming west northwest after midnight. Winds could gust as high as 50 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 32 °F

    Windy. Rain
    Likely then
    Chance Rain

  • Friday

    Friday: Mostly sunny, with a high near 45. Windy, with a west northwest wind 18 to 25 mph, with gusts as high as 45 mph.

    High: 45 °F

    Mostly Sunny
    and Windy

  • Friday Night

    Friday Night: A 20 percent chance of snow after 1am. Mostly cloudy, with a low around 28. Northwest wind 5 to 8 mph becoming light and variable in the evening.

    Low: 28 °F

    Mostly Cloudy
    then Slight
    Chance Snow

  • Saturday

    Saturday: A slight chance of snow before 1pm, then a slight chance of rain and snow. Cloudy, with a high near 44. Chance of precipitation is 20%.

    High: 44 °F

    Slight Chance
    Snow then
    Slight Chance
    Rain/Snow

  • Saturday Night

    Saturday Night: Rain and snow likely, mainly after 1am. Some thunder is also possible. Cloudy, with a low around 32. Breezy. Chance of precipitation is 70%.

    Low: 32 °F

    Chance
    Rain/Snow
    then
    Rain/Snow
    Likely and
    Breezy

  • Sunday

    Sunday: Rain and snow. High near 40. Windy. Chance of precipitation is 80%.

    High: 40 °F

    Rain/Snow and
    Windy

  • Sunday Night

    Sunday Night: A 30 percent chance of snow before 1am. Mostly cloudy, with a low around 9. Windy.

    Low: 9 °F

    Chance Snow
    and Windy

Detailed Forecast

Tonight
Mostly clear, with a low around 25. West northwest wind around 7 mph.
Thursday
Increasing clouds, with a high near 52. Windy, with a south southwest wind 5 to 10 mph increasing to 19 to 24 mph in the afternoon. Winds could gust as high as 37 mph.
Thursday Night
Rain likely, mainly before 1am. Mostly cloudy, with a low around 32. Windy, with a south southwest wind 23 to 28 mph becoming west northwest after midnight. Winds could gust as high as 50 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Friday
Mostly sunny, with a high near 45. Windy, with a west northwest wind 18 to 25 mph, with gusts as high as 45 mph.
Friday Night
A 20 percent chance of snow after 1am. Mostly cloudy, with a low around 28. Northwest wind 5 to 8 mph becoming light and variable in the evening.
Saturday
A slight chance of snow before 1pm, then a slight chance of rain and snow. Cloudy, with a high near 44. Chance of precipitation is 20%.
Saturday Night
Rain and snow likely, mainly after 1am. Some thunder is also possible. Cloudy, with a low around 32. Breezy. Chance of precipitation is 70%.
Sunday
Rain and snow. High near 40. Windy. Chance of precipitation is 80%.
Sunday Night
A 30 percent chance of snow before 1am. Mostly cloudy, with a low around 9. Windy.
Monday
Mostly sunny, with a high near 21. Windy.
Monday Night
Mostly clear, with a low around 4.
Tuesday
Partly sunny, with a high near 31.
Tuesday Night
A 30 percent chance of snow. Mostly cloudy, with a low around 21.
Wednesday
Partly sunny, with a high near 42.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles NNW Hartwick IA
 41.81°N 92.37°W
Last Update:
10:43 pm CDT Mar 11, 2026
Forecast Valid:
11pm CDT Mar 11, 2026-6pm CDT Mar 18, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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