Hazardous Weather Conditions
Current conditions at
Grinnell Municipal Airfield (KGGI)
Lat: 41.71°NLon: 92.73°WElev: 1007ft.
Fair
45°F
7°C
| Humidity | 40% |
| Wind Speed | Calm |
| Barometer | 30.20 in |
| Dewpoint | 22°F (-6°C) |
| Visibility | 10.00 mi |
| Last update | 9 Apr 9:15 am CDT |
Extended Forecast for
Grinnell IA
Today
High: 60 °F
Mostly Sunny
then Showers
LikelyTonight

Low: 40 °F
Showers
Friday

High: 56 °F
Mostly Sunny
Friday Night

Low: 38 °F
Mostly Clear
Saturday

High: 60 °F
Chance
ShowersSaturday Night

Low: 56 °F
Chance
T-stormsSunday

High: 71 °F
Showers
Likely and
WindySunday Night

Low: 60 °F
Chance
T-storms and
WindyMonday

High: 80 °F
Partly Sunny
and Windy
Detailed Forecast
Today
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 4pm. Increasing clouds, with a high near 60. North wind 5 to 7 mph becoming light and variable. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tonight
Showers and possibly a thunderstorm before 3am, then a slight chance of showers between 3am and 4am. Low around 40. North northeast wind 7 to 10 mph. Chance of precipitation is 90%. New rainfall amounts between three quarters and one inch possible.
Friday
Mostly sunny, with a high near 56. North northeast wind 7 to 10 mph.
Friday Night
Mostly clear, with a low around 38. East wind 3 to 6 mph.
Saturday
A chance of showers, with thunderstorms also possible after 10am. Mostly cloudy, with a high near 60. Southeast wind 8 to 15 mph, with gusts as high as 23 mph. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Saturday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 56. Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Sunday
Showers likely, with thunderstorms also possible after 7am. Mostly cloudy, with a high near 71. Windy. Chance of precipitation is 70%.
Sunday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 60. Windy.
Monday
Partly sunny, with a high near 80. Windy.
Monday Night
Showers likely and possibly a thunderstorm before 1am, then a chance of showers. Partly cloudy, with a low around 60. Breezy. Chance of precipitation is 60%.
Tuesday
Showers likely and possibly a thunderstorm. Partly sunny, with a high near 74. Breezy. Chance of precipitation is 60%.
Tuesday Night
Showers likely. Mostly cloudy, with a low around 47. Chance of precipitation is 70%.
Wednesday
A 40 percent chance of showers. Partly sunny, with a high near 63.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
Grinnell IA
41.75°N 92.72°W
41.75°N 92.72°W
6:21 am CDT Apr 9, 2026
9am CDT Apr 9, 2026-6pm CDT Apr 15, 2026



