Hurricane Isaias to Approach the Northern Gulf Coast on Friday
Isaias is expected to approach the northern Gulf Coast as a strong hurricane on Friday, bringing life-threatening storm surge, damaging winds, heavy rain, and severe thunderstorms across the region and Southeast into the weekend, with risks of flooding and tornadoes. Read More >
Current conditions at
Grinnell Municipal Airfield (KGGI)
Lat: 41.71°NLon: 92.73°WElev: 1007ft.
Fair
75°F
24°C
| Humidity | 30% |
| Wind Speed | S 3 mph |
| Barometer | 30.08 in |
| Dewpoint | 42°F (6°C) |
| Visibility | 10.00 mi |
| Last update | 8 Oct 2:35 pm CDT |
Extended Forecast for
Hartwick IA
This Afternoon
High: 77 °F
Sunny
Tonight
Low: 54 °F
Mostly Clear
then Chance
T-stormsFriday
High: 79 °F
Chance
T-storms then
SunnyFriday Night
Low: 61 °F
Clear
Saturday
High: 83 °F
Sunny
Saturday Night
Low: 58 °F
Mostly Clear
Sunday
High: 78 °F
Sunny
Sunday Night
Low: 60 °F
Mostly Clear
Columbus Day
High: 80 °F
Mostly Sunny
Detailed Forecast
This Afternoon
Sunny, with a high near 77. Calm wind.
Tonight
A chance of showers between midnight and 1am, then a chance of showers and thunderstorms after 1am. Increasing clouds, with a low around 54. Calm wind becoming east southeast around 5 mph after midnight. Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Friday
A 30 percent chance of showers and thunderstorms, mainly before 8am. Mostly cloudy through mid morning, then gradual clearing, with a high near 79. East wind 6 to 9 mph becoming south in the afternoon. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Friday Night
Clear, with a low around 61. South wind around 8 mph.
Saturday
Sunny, with a high near 83. South wind 8 to 11 mph, with gusts as high as 22 mph.
Saturday Night
Mostly clear, with a low around 58.
Sunday
Sunny, with a high near 78.
Sunday Night
Mostly clear, with a low around 60.
Columbus Day
Mostly sunny, with a high near 80.
Monday Night
Mostly clear, with a low around 57.
Tuesday
Mostly sunny, with a high near 69.
Tuesday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 52.
Wednesday
Showers likely. Mostly cloudy, with a high near 68. Chance of precipitation is 70%.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
Hartwick IA
41.79°N 92.37°W
41.79°N 92.37°W
2:27 pm CDT Oct 8, 2026
2pm CDT Oct 8, 2026-6pm CDT Oct 14, 2026
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