Hazardous Weather Conditions
Current conditions at
Grinnell Municipal Airfield (KGGI)
Lat: 41.71°NLon: 92.73°WElev: 1007ft.
Fair
58°F
14°C
| Humidity | 87% |
| Wind Speed | Calm |
| Barometer | 29.75 in |
| Dewpoint | 55°F (13°C) |
| Visibility | 10.00 mi |
| Last update | 15 Apr 7:55 am CDT |
Extended Forecast for
3 Miles NNW Hartwick IA
Today
High: 72 °F
Chance
T-storms then
Showers
LikelyTonight
Low: 52 °F
Severe
Thunderstorms
then Slight
Chance
T-stormsThursday

High: 74 °F
Becoming
SunnyThursday Night

Low: 54 °F
Mostly Clear
Friday
High: 77 °F
Breezy.
Mostly Sunny
then T-storms
LikelyFriday Night
Low: 37 °F
T-storms
Likely then
Showers
LikelySaturday

High: 49 °F
Slight Chance
Showers and
BreezySaturday Night
Low: 30 °F
Partly Cloudy
and Blustery
then Mostly
ClearSunday

High: 54 °F
Sunny
Detailed Forecast
Today
A chance of showers and thunderstorms before 2pm, then showers likely and possibly a thunderstorm between 2pm and 3pm, then a chance of showers and thunderstorms after 3pm. Mostly cloudy, with a high near 72. South wind 6 to 9 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tonight
A 50 percent chance of showers and thunderstorms, mainly before midnight. Some of the storms could be severe. Mostly cloudy, with a low around 52. East wind around 7 mph becoming west after midnight. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday
Partly sunny, then gradually becoming sunny, with a high near 74. West northwest wind 6 to 8 mph.
Thursday Night
Mostly clear, with a low around 54. South wind 5 to 8 mph.
Friday
Showers likely and possibly a thunderstorm between 1pm and 4pm, then showers and thunderstorms likely after 4pm. Partly sunny, with a high near 77. Breezy, with a south wind 10 to 18 mph, with gusts as high as 28 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Friday Night
Showers and thunderstorms likely before 7pm, then showers likely and possibly a thunderstorm between 7pm and 1am, then a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 37. Chance of precipitation is 70%. New rainfall amounts between a half and three quarters of an inch possible.
Saturday
A 20 percent chance of showers. Mostly sunny, with a high near 49. Breezy.
Saturday Night
Partly cloudy, with a low around 30. Blustery.
Sunday
Sunny, with a high near 54.
Sunday Night
Mostly clear, with a low around 34.
Monday
Sunny, with a high near 67.
Monday Night
Mostly clear, with a low around 47.
Tuesday
Sunny, with a high near 71.
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
6:46 am CDT Apr 15, 2026
8am CDT Apr 15, 2026-6pm CDT Apr 21, 2026



