Hazardous Weather Conditions
Current conditions at
Grinnell Municipal Airfield (KGGI)
Lat: 41.71°NLon: 92.73°WElev: 1007ft.
Light Rain
37°F
3°C
| Humidity | 95% |
| Wind Speed | SE 12 mph |
| Barometer | 29.88 in |
| Dewpoint | 36°F (2°C) |
| Visibility | 0.50 mi |
| Wind Chill | 29°F (-2°C) |
| Last update | 27 Dec 5:35 am CST |
Extended Forecast for
Deep River IA
Dense Fog Advisory December 27, 05:39am until December 27, 12:00pm
NOW until 12:00pm Sat
Dense Fog Advisory
Today
High: 50 °F
Dense Fog
then CloudyTonight

Low: 44 °F
Chance Rain
and Patchy
FogSunday
High: 45 °F⇓
Rain and
Patchy Fog
then Wintry
Mix and
Patchy
Blowing SnowSunday Night
Low: 10 °F
Windy. Chance
Snow then
Mostly CloudyMonday

High: 18 °F
Partly Sunny
and WindyMonday Night
Low: 10 °F
Mostly Clear
and Blustery
then Mostly
ClearTuesday

High: 32 °F
Mostly Sunny
Tuesday Night

Low: 22 °F
Mostly Cloudy
Detailed Forecast
Today
Widespread dense fog before noon. Otherwise, cloudy, with a high near 50. 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 after 8pm. Otherwise, cloudy, with a low around 44. Southeast wind 5 to 8 mph becoming west southwest after midnight. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
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. Patchy fog before 7am. Temperature falling to around 23 by 5pm. Wind chill values as low as 5. Windy, with a south wind 7 to 12 mph becoming northwest 19 to 29 mph. 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 40 percent chance of snow before midnight. Mostly cloudy, with a low around 10. Wind chill values as low as -10. Windy, with a west northwest wind around 30 mph, with gusts as high as 46 mph. New snow accumulation of less than a half inch possible.
Monday
Partly sunny, with a high near 18. Windy, with a northwest wind 20 to 28 mph, with gusts as high as 41 mph.
Monday Night
Mostly clear, with a low around 10. Blustery.
Tuesday
Mostly sunny, with a high near 32.
Tuesday Night
Mostly cloudy, with a low around 22.
Wednesday
Partly sunny, with a high near 33.
Wednesday Night
Mostly cloudy, with a low around 9.
New Year's Day
Sunny, with a high near 17.
Thursday Night
Partly cloudy, with a low around 5.
Friday
Mostly sunny, with a high near 23.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
Deep River IA
41.57°N 92.37°W
41.57°N 92.37°W
3:46 am CST Dec 27, 2025
5am CST Dec 27, 2025-6pm CST Jan 2, 2026



