Hazardous Weather Conditions
Current conditions at
Grinnell Municipal Airfield (KGGI)
Lat: 41.71°NLon: 92.73°WElev: 1007ft.
Light Rain
38°F
3°C
| Humidity | 95% |
| Wind Speed | SE 12 mph |
| Barometer | 29.88 in |
| Dewpoint | 37°F (3°C) |
| Visibility | 0.50 mi |
| Wind Chill | 30°F (-1°C) |
| Last update | 27 Dec 5:55 am CST |
Extended Forecast for
Hartwick IA
Dense Fog Advisory December 27, 06:03am until December 27, 12:00pm
NOW until 12:00pm Sat

Dense Fog Advisory
Today

High: 48 °F
Areas Dense
FogTonight
Low: 42 °F
Patchy Fog
then Chance
Rain and
Areas FogSunday
High: 42 °F⇓
Rain and
Areas Fog
then Wintry
Mix and
Patchy
Blowing SnowSunday Night
Low: 9 °F
Windy. Chance
Snow then
Mostly CloudyMonday

High: 16 °F
Partly Sunny
and WindyMonday Night
Low: 7 °F
Mostly Clear
and Blustery
then Mostly
ClearTuesday

High: 30 °F
Mostly Sunny
Tuesday Night

Low: 20 °F
Mostly Cloudy
Detailed Forecast
Today
Patchy dense fog between noon and 2pm. Otherwise, cloudy, with a high near 48. Southeast wind 7 to 10 mph, with gusts as high as 20 mph.
Tonight
A slight chance of rain before 3am, then a chance of rain after 5am. Patchy fog. Otherwise, cloudy, with a low around 42. Southeast wind 5 to 8 mph becoming light and variable. Chance of precipitation is 30%.
Sunday
Rain before 1pm, then rain and snow between 1pm and 3pm, then snow, possibly mixed with sleet after 3pm. Patchy blowing snow after 3pm. Areas of fog before 7am. Temperature falling to around 22 by 5pm. Wind chill values as low as 5. Windy, with a south wind 7 to 12 mph becoming northwest 18 to 28 mph in the morning. Winds could gust as high as 43 mph. Chance of precipitation is 90%. New snow and sleet accumulation of less than a half inch possible.
Sunday Night
A 50 percent chance of snow before midnight. Mostly cloudy, with a low around 9. Wind chill values as low as -10. Windy, with a west northwest wind 28 to 30 mph, with gusts as high as 45 mph. New snow accumulation of less than a half inch possible.
Monday
Partly sunny, with a high near 16. Windy, with a northwest wind 18 to 26 mph, with gusts as high as 40 mph.
Monday Night
Mostly clear, with a low around 7. Blustery.
Tuesday
Mostly sunny, with a high near 30.
Tuesday Night
Mostly cloudy, with a low around 20.
Wednesday
Partly sunny, with a high near 31.
Wednesday Night
Mostly cloudy, with a low around 7.
New Year's Day
Sunny, with a high near 15.
Thursday Night
Mostly clear, with a low around 3.
Friday
Sunny, with a high near 21.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
Hartwick IA
41.79°N 92.34°W
41.79°N 92.34°W
3:46 am CST Dec 27, 2025
6am CST Dec 27, 2025-6pm CST Jan 2, 2026



