Hazardous Weather Conditions
Current conditions at
Grinnell Municipal Airfield (KGGI)
Lat: 41.71°NLon: 92.73°WElev: 1007ft.
Fair
48°F
9°C
| Humidity | 69% |
| Wind Speed | Calm |
| Barometer | 29.85 in |
| Dewpoint | 38°F (3°C) |
| Visibility | 10.00 mi |
| Last update | 30 Mar 4:55 am CDT |
Extended Forecast for
3 Miles NNW Hartwick IA
Today

High: 83 °F
Increasing
CloudsTonight

Low: 61 °F
Chance
T-stormsTuesday
High: 70 °F⇓
Breezy.
Slight Chance
T-storms then
Chance
ShowersTuesday Night

Low: 36 °F
Slight Chance
Showers and
BreezyWednesday
High: 46 °F
Chance
Showers then
Showers
Likely and
BreezyWednesday Night

Low: 34 °F
Showers and
BreezyThursday

High: 51 °F
Showers
Thursday Night

Low: 33 °F
Chance Rain
Friday
High: 58 °F
Mostly Cloudy
then Chance
Rain
Detailed Forecast
Today
Increasing clouds, with a high near 83. South wind 6 to 15 mph, with gusts as high as 22 mph.
Tonight
A chance of showers and thunderstorms before 4am, then a slight chance of showers between 4am and 5am. Mostly cloudy, with a low around 61. South southwest wind 10 to 15 mph, with gusts as high as 26 mph. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tuesday
A slight chance of showers, then a chance of showers and thunderstorms after 10am. Partly sunny, with a temperature rising to near 70 by 11am, then falling to around 60 during the remainder of the day. Breezy, with a south southwest wind 14 to 18 mph becoming north in the afternoon. Winds could gust as high as 30 mph. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tuesday Night
A 20 percent chance of showers before 1am. Mostly cloudy, with a low around 36. Breezy, with a north wind 13 to 17 mph, with gusts as high as 28 mph.
Wednesday
Showers likely, mainly after 1pm. Mostly cloudy, with a high near 46. Breezy, with an east northeast wind 14 to 16 mph, with gusts as high as 24 mph. Chance of precipitation is 70%. New precipitation amounts between a quarter and half of an inch possible.
Wednesday Night
Showers before 1am, then rain after 1am. Low around 34. Breezy. Chance of precipitation is 100%. New precipitation amounts between 1 and 2 inches possible.
Thursday
Showers. High near 51. Chance of precipitation is 90%.
Thursday Night
A 40 percent chance of rain before 1am. Mostly cloudy, with a low around 33.
Friday
A 40 percent chance of rain after 1pm. Mostly cloudy, with a high near 58.
Friday Night
Rain likely. Mostly cloudy, with a low around 40. Breezy. Chance of precipitation is 70%.
Saturday
A 50 percent chance of rain. Mostly cloudy, with a high near 51. Breezy.
Saturday Night
Mostly cloudy, with a low around 30. Blustery.
Sunday
Mostly sunny, with a high near 51. 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
3:31 am CDT Mar 30, 2026
5am CDT Mar 30, 2026-6pm CDT Apr 5, 2026



