Hazardous Weather Conditions
Current conditions at
Fort Madison Municipal Airport (KFSW)
Lat: 40.66°NLon: 91.33°WElev: 719ft.
Light Rain
79°F
26°C
| Humidity | 94% |
| Wind Speed | Calm |
| Barometer | 30.03 in |
| Dewpoint | 77°F (25°C) |
| Visibility | 10.00 mi |
| Heat Index | 83°F (28°C) |
| Last update | 14 Aug 5:35 pm CDT |
Extended Forecast for
4 Miles NNW Denmark IA
Flood Watch August 14, 06:11pm until August 15, 10:00am
Flood Watch August 15, 06:45pm until August 16, 03:00am
NOW until 10:00am Sat
Flood Watch
Tonight
Low: 72 °F
Chance
T-storms then
Heavy RainSaturday
High: 91 °F
Showers
Likely then
Partly SunnySaturday Night
Low: 71 °F
Mostly Cloudy
then Chance
T-stormsSunday
High: 84 °F
Chance
Showers then
Chance
T-stormsSunday Night
Low: 64 °F
Chance
T-storms then
Partly CloudyMonday

High: 82 °F
Sunny
Monday Night

Low: 63 °F
Mostly Clear
Tuesday

High: 85 °F
Mostly Sunny
Detailed Forecast
Tonight
Showers and thunderstorms likely, then showers and possibly a thunderstorm after 2am. Some of the storms could produce heavy rainfall. Low around 72. East wind 5 to 10 mph. Chance of precipitation is 80%. New rainfall amounts between three quarters and one inch possible.
Saturday
Showers and thunderstorms likely before 10am, then a slight chance of showers between 10am and 11am. Cloudy, then gradually becoming mostly sunny, with a high near 91. Heat index values as high as 106. Southeast wind 5 to 10 mph becoming west in the afternoon. Chance of precipitation is 60%. New precipitation amounts between a quarter and half of an inch possible.
Saturday Night
A 50 percent chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 71. Northwest wind around 5 mph becoming southwest in the evening.
Sunday
A chance of showers and thunderstorms before 10am, then a chance of showers between 10am and 1pm, then a chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 84. Northwest wind around 5 mph. Chance of precipitation is 40%.
Sunday Night
A chance of thunderstorms before 7pm. Partly cloudy, with a low around 64. Chance of precipitation is 30%.
Monday
Sunny, with a high near 82.
Monday Night
Mostly clear, with a low around 63.
Tuesday
Mostly sunny, with a high near 85.
Tuesday Night
A chance of showers, with thunderstorms also possible after 1am. Partly cloudy, with a low around 68. Chance of precipitation is 50%.
Wednesday
A 30 percent chance of showers and thunderstorms before 1pm. Mostly cloudy, with a high near 82.
Wednesday Night
Partly cloudy, with a low around 63.
Thursday
Partly sunny, with a high near 77.
Thursday Night
Partly cloudy, with a low around 62.
Friday
Mostly sunny, with a high near 78.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
4 Miles NNW Denmark IA
40.81°N 91.35°W (Elev. 702 ft)
40.81°N 91.35°W (Elev. 702 ft)
5:46 pm CDT Aug 14, 2026
6pm CDT Aug 14, 2026-6pm CDT Aug 21, 2026



