Hazardous Weather Conditions
Current conditions at
Grinnell Municipal Airfield (KGGI)
Lat: 41.71°NLon: 92.73°WElev: 1007ft.
Overcast
72°F
22°C
| Humidity | 63% |
| Wind Speed | S 16 G 20 mph |
| Barometer | 29.66 in |
| Dewpoint | 58°F (14°C) |
| Visibility | 10.00 mi |
| Last update | 15 Apr 4:15 pm CDT |
Extended Forecast for
3 Miles NNW Hartwick IA
Tornado Watch until April 15, 09:00pm
NOW until 9:00pm Wed

Tornado Watch
This Afternoon

High: 71 °F
Severe
ThunderstormsTonight
Low: 52 °F
Severe
Thunderstorms
then Slight
Chance
T-stormsThursday

High: 74 °F
Sunny
Thursday Night

Low: 53 °F
Mostly Clear
Friday
High: 76 °F
Breezy.
Slight Chance
T-storms then
T-stormsFriday Night
Low: 35 °F
T-storms
Likely then
Showers
Likely and
BreezySaturday

High: 50 °F
Slight Chance
Rain/Snow and
BreezySaturday Night

Low: 30 °F
Mostly Clear
Detailed Forecast
This Afternoon
A 30 percent chance of showers and thunderstorms. Some of the storms could be severe. Mostly cloudy, with a high near 71. South southwest wind around 8 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tonight
Showers and thunderstorms, mainly before 11pm. Some of the storms could be severe. Low around 52. Southwest wind 5 to 7 mph becoming north in the evening. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday
Sunny, with a high near 74. Northwest wind around 7 mph becoming southwest in the afternoon.
Thursday Night
Mostly clear, with a low around 53. South southeast wind 6 to 9 mph.
Friday
A slight chance of showers before 10am, then a slight chance of showers and thunderstorms between 10am and 1pm, then showers and possibly a thunderstorm after 1pm. High near 76. Breezy, with a south wind 11 to 18 mph, with gusts as high as 28 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Friday Night
Showers and thunderstorms likely before 1am, then a chance of showers. Mostly cloudy, with a low around 35. Breezy. Chance of precipitation is 70%. New precipitation amounts between a half and three quarters of an inch possible.
Saturday
A slight chance of rain and snow showers before 1pm. Mostly sunny, with a high near 50. Breezy. Chance of precipitation is 20%.
Saturday Night
Mostly clear, with a low around 30.
Sunday
Sunny, with a high near 56.
Sunday Night
Mostly clear, with a low around 34.
Monday
Sunny, with a high near 68. Breezy.
Monday Night
Mostly clear, with a low around 48.
Tuesday
Sunny, with a high near 72.
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
4:02 pm CDT Apr 15, 2026
4pm CDT Apr 15, 2026-6pm CDT Apr 21, 2026



