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

47°F

8°C

Humidity 47%
Wind Speed E 16 G 26 mph
Barometer 29.88 in
Dewpoint 28°F (-2°C)
Visibility 10.00 mi
Wind Chill41°F (5°C)
Last update 14 Mar 3:55 pm CDT
Extended Forecast for

3 Miles NNW Hartwick IA

Blizzard Warning March 15, 01:00pm until March 16, 07:00am
High Wind Warning March 15, 01:00pm until March 16, 04:00am
Click here for hazard details and duration
Blizzard Warning
High Wind Warning

  • This Afternoon

    This Afternoon: Partly sunny, with a high near 48. Breezy, with an east southeast wind around 17 mph, with gusts as high as 21 mph.

    High: 48 °F

    Partly Sunny
    and Breezy

  • Tonight

    Tonight: A slight chance of rain between 3am and 4am, then a chance of rain and thunderstorms after 4am. Mostly cloudy, with a low around 40. East southeast wind around 15 mph, with gusts as high as 29 mph. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 40 °F

    Mostly Cloudy
    then Chance
    Rain

  • Sunday

    Sunday: Rain, possibly mixed with sleet before 3pm, then snow, possibly mixed with rain. Some thunder is also possible. Patchy blowing snow after 4pm. Temperature rising to near 53 by 8am, then falling to around 31 during the remainder of the day. Windy, with a south wind 16 to 21 mph becoming north 28 to 33 mph in the afternoon. Winds could gust as high as 47 mph. Chance of precipitation is 100%. New snow and sleet accumulation of less than one inch possible.

    High: 53 °F⇓

    Rain and
    Windy then
    Wintry Mix
    and Patchy
    Blowing Snow

  • Sunday Night

    Sunday Night: Snow. Widespread blowing snow, mainly after 9pm. Low around 9. Wind chill values as low as -10. Very windy, with a north northwest wind 33 to 36 mph, with gusts as high as 55 mph. Chance of precipitation is 90%. New snow accumulation of 3 to 5 inches possible.

    Low: 9 °F

    Snow and
    Blowing Snow

  • Monday

    Monday: Areas of blowing snow. Partly sunny, with a high near 15. Windy, with a northwest wind 24 to 29 mph, with gusts as high as 40 mph.

    High: 15 °F

    Areas Blowing
    Snow and
    Windy

  • Monday Night

    Monday Night: Mostly clear, with a low around 1. Blustery.

    Low: 1 °F

    Mostly Clear
    and Blustery
    then Mostly
    Clear

  • Tuesday

    Tuesday: A 20 percent chance of snow after 1pm. Partly sunny, with a high near 30.

    High: 30 °F

    Mostly Sunny
    then Slight
    Chance Snow

  • Tuesday Night

    Tuesday Night: Snow likely, mainly before 1am. Mostly cloudy, with a low around 21. Chance of precipitation is 60%.

    Low: 21 °F

    Snow Likely

  • Wednesday

    Wednesday: Sunny, with a high near 48.

    High: 48 °F

    Sunny

Detailed Forecast

This Afternoon
Partly sunny, with a high near 48. Breezy, with an east southeast wind around 17 mph, with gusts as high as 21 mph.
Tonight
A slight chance of rain between 3am and 4am, then a chance of rain and thunderstorms after 4am. Mostly cloudy, with a low around 40. East southeast wind around 15 mph, with gusts as high as 29 mph. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Sunday
Rain, possibly mixed with sleet before 3pm, then snow, possibly mixed with rain. Some thunder is also possible. Patchy blowing snow after 4pm. Temperature rising to near 53 by 8am, then falling to around 31 during the remainder of the day. Windy, with a south wind 16 to 21 mph becoming north 28 to 33 mph in the afternoon. Winds could gust as high as 47 mph. Chance of precipitation is 100%. New snow and sleet accumulation of less than one inch possible.
Sunday Night
Snow. Widespread blowing snow, mainly after 9pm. Low around 9. Wind chill values as low as -10. Very windy, with a north northwest wind 33 to 36 mph, with gusts as high as 55 mph. Chance of precipitation is 90%. New snow accumulation of 3 to 5 inches possible.
Monday
Areas of blowing snow. Partly sunny, with a high near 15. Windy, with a northwest wind 24 to 29 mph, with gusts as high as 40 mph.
Monday Night
Mostly clear, with a low around 1. Blustery.
Tuesday
A 20 percent chance of snow after 1pm. Partly sunny, with a high near 30.
Tuesday Night
Snow likely, mainly before 1am. Mostly cloudy, with a low around 21. Chance of precipitation is 60%.
Wednesday
Sunny, with a high near 48.
Wednesday Night
Mostly cloudy, with a low around 31.
Thursday
Mostly sunny, with a high near 63.
Thursday Night
Mostly cloudy, with a low around 36.
Friday
Mostly sunny, with a high near 65.
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:
3:12 pm CDT Mar 14, 2026
Forecast Valid:
4pm CDT Mar 14, 2026-6pm CDT Mar 20, 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