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Current conditions at
Grinnell Municipal Airfield (KGGI)
Lat: 41.71°NLon: 92.73°WElev: 1007ft.
Fair
74°F
23°C
| Humidity | 81% |
| Wind Speed | E 5 mph |
| Barometer | 30.03 in |
| Dewpoint | 68°F (20°C) |
| Visibility | 10.00 mi |
| Last update | 29 Jul 8:55 am CDT |
Extended Forecast for
Grinnell IA
Today
High: 87 °F
Mostly Sunny
Tonight
Low: 65 °F
Patchy Smoke
then Partly
CloudyThursday
High: 85 °F
Mostly Sunny
Thursday Night
Low: 65 °F
Chance
Showers then
ShowersFriday
High: 79 °F
Showers
Friday Night
Low: 61 °F
Chance
Showers and
BreezySaturday
High: 80 °F
Mostly Sunny
and BreezySaturday Night
Low: 61 °F
Mostly Clear
Sunday
High: 82 °F
Sunny
Detailed Forecast
Today
Mostly sunny, with a high near 87. Calm wind becoming southeast around 6 mph in the afternoon.
Tonight
Patchy smoke before 11pm. Partly cloudy, with a low around 65. Southeast wind around 5 mph.
Thursday
Mostly sunny, with a high near 85. South wind 5 to 9 mph.
Thursday Night
A chance of showers before 10pm, then a chance of showers and thunderstorms between 10pm and 1am, then showers and possibly a thunderstorm after 1am. Low around 65. South wind 9 to 11 mph, with gusts as high as 20 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.
Friday
Showers and possibly a thunderstorm. High near 79. South southeast wind 11 to 13 mph becoming northwest in the afternoon. Winds could gust as high as 21 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.
Friday Night
A 40 percent chance of showers, mainly before 1am. Mostly cloudy, with a low around 61. Breezy. New precipitation amounts between a tenth and quarter of an inch possible.
Saturday
Mostly sunny, with a high near 80. Breezy.
Saturday Night
Mostly clear, with a low around 61.
Sunday
Sunny, with a high near 82.
Sunday Night
Clear, with a low around 61.
Monday
Sunny, with a high near 84.
Monday Night
Mostly clear, with a low around 63.
Tuesday
Mostly sunny, with a high near 86.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
Grinnell IA
41.75°N 92.69°W
41.75°N 92.69°W
8:32 am CDT Jul 29, 2026
9am CDT Jul 29, 2026-6pm CDT Aug 4, 2026
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