Hazardous Weather Conditions
Current conditions at
Grinnell Municipal Airfield (KGGI)
Lat: 41.71°NLon: 92.73°WElev: 1007ft.
Fair
81°F
27°C
| Humidity | 16% |
| Wind Speed | W 6 mph |
| Barometer | 29.86 in |
| Dewpoint | 30°F (-1°C) |
| Visibility | 10.00 mi |
| Heat Index | 79°F (26°C) |
| Last update | 21 Apr 4:35 pm CDT |
Extended Forecast for
3 Miles NNW Hartwick IA
This Afternoon

High: 81 °F
Mostly Sunny
Tonight

Low: 54 °F
Mostly Clear
Wednesday

High: 80 °F
Sunny
Wednesday Night

Low: 57 °F
Mostly Clear
Thursday
High: 77 °F
Breezy.
Mostly Sunny
then Chance
T-stormsThursday Night

Low: 53 °F
Showers and
BreezyFriday

High: 68 °F
Chance
ShowersFriday Night

Low: 43 °F
Mostly Clear
Saturday

High: 67 °F
Sunny
Detailed Forecast
This Afternoon
Mostly sunny, with a high near 81. West wind around 9 mph.
Tonight
Mostly clear, with a low around 54. Light and variable wind becoming south around 6 mph after midnight.
Wednesday
Sunny, with a high near 80. South wind 6 to 11 mph, with gusts as high as 18 mph.
Wednesday Night
Mostly clear, with a low around 57. South wind around 10 mph, with gusts as high as 18 mph.
Thursday
A 30 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 77. Breezy, with a south wind 13 to 20 mph, with gusts as high as 30 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday Night
Showers and possibly a thunderstorm before 4am, then showers likely. Low around 53. Breezy. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Friday
A chance of showers and thunderstorms. Mostly sunny, with a high near 68. Chance of precipitation is 30%.
Friday Night
Mostly clear, with a low around 43.
Saturday
Sunny, with a high near 67.
Saturday Night
Mostly cloudy, with a low around 46.
Sunday
A 30 percent chance of showers. Partly sunny, with a high near 70.
Sunday Night
Showers likely. Mostly cloudy, with a low around 50. Breezy. Chance of precipitation is 60%.
Monday
A 50 percent chance of showers. Mostly cloudy, with a high near 64. Breezy.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
3 Miles NNW Hartwick IA
41.81°N 92.37°W
41.81°N 92.37°W
4:22 pm CDT Apr 21, 2026
4pm CDT Apr 21, 2026-6pm CDT Apr 27, 2026



