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 | 29.89 in |
| Dewpoint | 37°F (3°C) |
| Visibility | 0.50 mi |
| Wind Chill | 30°F (-1°C) |
| Last update | 27 Dec 6:35 am CST |
Extended Forecast for
Gilman IA
Dense Fog Advisory December 27, 06:40am until December 27, 12:00pm
NOW until 12:00pm Sat

Dense Fog Advisory
Today

High: 48 °F
Areas Dense
FogTonight
Low: 41 °F
Patchy Fog
then Chance
Rain and
Areas FogSunday

High: 42 °F⇓
Wintry Mix
and Patchy
Blowing SnowSunday Night
Low: 8 °F
Windy. Chance
Snow then
Mostly CloudyMonday

High: 15 °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
Areas of dense fog before 2pm. Otherwise, cloudy, with a high near 48. Southeast wind 8 to 11 mph, with gusts as high as 20 mph.
Tonight
A 30 percent chance of rain after 5am. Patchy fog. Otherwise, cloudy, with a low around 41. Southeast wind 5 to 9 mph becoming light south southeast.
Sunday
Rain and snow before 1pm, then snow, possibly mixed with freezing rain between 1pm and 3pm, then snow after 3pm. Patchy blowing snow after 1pm. Areas of fog before 7am. Temperature falling to around 20 by 5pm. Wind chill values as low as zero. Windy, with a north northwest wind 8 to 18 mph increasing to 21 to 31 mph in the afternoon. Winds could gust as high as 43 mph. Chance of precipitation is 90%. Little or no ice accumulation expected. New snow accumulation of less than a half inch possible.
Sunday Night
A 40 percent chance of snow before midnight. Mostly cloudy, with a low around 8. Wind chill values as low as -15. Windy, with a west northwest wind around 31 mph, with gusts as high as 44 mph. New snow accumulation of less than a half inch possible.
Monday
Partly sunny, with a high near 15. Windy, with a northwest wind 21 to 29 mph, with gusts as high as 39 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 30.
Wednesday Night
Mostly cloudy, with a low around 6.
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:
Gilman IA
41.88°N 92.77°W
41.88°N 92.77°W
3:46 am CST Dec 27, 2025
6am CST Dec 27, 2025-6pm CST Jan 2, 2026



