Hazardous Weather Conditions
Current conditions at
Grinnell Municipal Airfield (KGGI)
Lat: 41.71°NLon: 92.73°WElev: 1007ft.N/A
| Humidity | NA |
| Wind Speed | NA |
| Barometer | NA |
| Dewpoint | N/A |
| Visibility | NA |
| Last update | *** Not a current observation *** |
Extended Forecast for
3 Miles NNW Hartwick IA
Winter Weather Advisory March 16, 06:40am until March 16, 10:00am
NOW until 10:00am Mon

Winter Weather Advisory
Today

High: 16 °F
Slight Chance
Snow and
Blowing SnowTonight
Low: 3 °F
Mostly Cloudy
and Blustery
then Mostly
ClearTuesday
High: 27 °F
Mostly Sunny
then Chance
SnowTuesday Night
Low: 25 °F
Snow Likely
then Wintry
Mix LikelyWednesday

High: 46 °F
Mostly Sunny
Wednesday Night

Low: 32 °F
Mostly Cloudy
Thursday

High: 55 °F
Mostly Sunny
Thursday Night

Low: 35 °F
Mostly Cloudy
Detailed Forecast
Today
A slight chance of snow before 8am, then a chance of flurries between 8am and noon. Widespread blowing snow, mainly before 7am. Partly sunny, with a high near 16. Wind chill values as low as -15. Windy, with a northwest wind 23 to 31 mph, with gusts as high as 45 mph. Chance of precipitation is 20%.
Tonight
Partly cloudy, with a low around 3. 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 40 percent chance of snow after 1pm. Increasing clouds, with a high near 27. Wind chill values as low as -5. Light and variable wind becoming south 5 to 10 mph in the afternoon. Little or no snow accumulation expected.
Tuesday Night
Snow likely before 4am, then a slight chance of snow and freezing rain. Cloudy, then gradually becoming partly cloudy, with a steady temperature around 25. South southeast wind 7 to 11 mph, with gusts as high as 20 mph. Chance of precipitation is 70%. Little or no ice accumulation expected. New snow accumulation of less than a half inch possible.
Wednesday
Mostly sunny, with a high near 46. West southwest wind around 6 mph.
Wednesday Night
Mostly cloudy, with a low around 32.
Thursday
Mostly sunny, with a high near 55.
Thursday Night
Mostly cloudy, with a low around 35.
Friday
Partly sunny, with a high near 68.
Friday Night
Mostly cloudy, with a low around 41.
Saturday
Sunny, with a high near 69.
Saturday Night
Mostly clear, with a low around 39.
Sunday
Partly sunny, with a high near 57.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
3 Miles NNW Hartwick IA
41.81°N 92.37°W
41.81°N 92.37°W
6:37 am CDT Mar 16, 2026
6am CDT Mar 16, 2026-6pm CDT Mar 22, 2026



