


Current conditions at
Grinnell Municipal Airfield (KGGI)
Lat: 41.71°NLon: 92.73°WElev: 1007ft.
Fair
76°F
24°C
Humidity | 85% |
Wind Speed | Calm |
Barometer | 30.04 in |
Dewpoint | 71°F (22°C) |
Visibility | 10.00 mi |
Heat Index | 77°F (25°C) |
Last update | 14 Jul 8:55 pm CDT |
Extended Forecast for
Grinnell IA
Tonight
Low: 66 °F
Clear
Tuesday
High: 87 °F
Sunny
Tuesday Night
Low: 70 °F
Mostly Clear
Wednesday
High: 86 °F
Chance
Showers then
Chance
T-stormsWednesday Night
Low: 63 °F
Showers
LikelyThursday
High: 75 °F
Slight Chance
T-stormsThursday Night
Low: 61 °F
Mostly Cloudy
then Slight
Chance
ShowersFriday
High: 79 °F
Partly Sunny
Friday Night
Low: 66 °F
Mostly Cloudy
then Chance
T-storms
Detailed Forecast
Tonight
Clear, with a low around 66. South wind 3 to 6 mph.
Tuesday
Sunny, with a high near 87. South wind 5 to 8 mph.
Tuesday Night
Mostly clear, with a low around 70. South wind around 6 mph.
Wednesday
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 86. South southwest wind 6 to 8 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
Showers likely and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 63. North northwest wind around 7 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
Thursday
A slight chance of showers and thunderstorms. Mostly cloudy, with a high near 75. Chance of precipitation is 20%.
Thursday Night
A 20 percent chance of showers after 1am. Mostly cloudy, with a low around 61.
Friday
Partly sunny, with a high near 79.
Friday Night
A 50 percent chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 66.
Saturday
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 84.
Saturday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 67.
Sunday
A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 83.
Sunday Night
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 66.
Monday
Mostly sunny, with a high near 86.
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
8:57 pm CDT Jul 14, 2025
9pm CDT Jul 14, 2025-6pm CDT Jul 21, 2025