Current conditions at
Fort Madison Municipal Airport (KFSW)
Lat: 40.66°NLon: 91.33°WElev: 719ft.
Fair
66°F
19°C
| Humidity | 83% |
| Wind Speed | SE 7 mph |
| Barometer | 30.10 in |
| Dewpoint | 61°F (16°C) |
| Visibility | 10.00 mi |
| Last update | 29 Aug 4:35 am CDT |
Extended Forecast for
Donnellson IA
Today

High: 86 °F
Partly Sunny
Tonight
Low: 71 °F
Partly Cloudy
then Slight
Chance
ShowersSunday
High: 93 °F
Slight Chance
T-storms then
Mostly SunnySunday Night

Low: 75 °F
Partly Cloudy
Monday

High: 96 °F
Hot
Monday Night

Low: 76 °F
Mostly Clear
Tuesday

High: 97 °F
Hot
Tuesday Night

Low: 75 °F
Mostly Clear
Wednesday

High: 96 °F
Hot
Detailed Forecast
Today
Partly sunny, with a high near 86. South wind 5 to 10 mph, with gusts as high as 20 mph.
Tonight
A 20 percent chance of showers after 4am. Increasing clouds, with a low around 71. South wind around 10 mph, with gusts as high as 25 mph.
Sunday
A 20 percent chance of showers and thunderstorms before 8am. Mostly sunny, with a high near 93. South wind around 10 mph, with gusts as high as 20 mph.
Sunday Night
Partly cloudy, with a low around 75. South wind around 10 mph, with gusts as high as 20 mph.
Monday
Mostly sunny and hot, with a high near 96.
Monday Night
Mostly clear, with a low around 76.
Tuesday
Mostly sunny and hot, with a high near 97.
Tuesday Night
Mostly clear, with a low around 75.
Wednesday
Sunny and hot, with a high near 96.
Wednesday Night
Mostly clear, with a low around 73.
Thursday
Mostly sunny, with a high near 94.
Thursday Night
Partly cloudy, with a low around 72.
Friday
Partly sunny, with a high near 92.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
Donnellson IA
40.64°N 91.56°W (Elev. 705 ft)
40.64°N 91.56°W (Elev. 705 ft)
4:16 am CDT Aug 29, 2026
4am CDT Aug 29, 2026-6pm CDT Sep 4, 2026


