Hazardous Weather Conditions
Current conditions at
Fort Madison Municipal Airport (KFSW)
Lat: 40.66°NLon: 91.33°WElev: 719ft.
A Few Clouds
77°F
25°C
| Humidity | 47% |
| Wind Speed | Vrbl 1 mph |
| Barometer | 30.01 in |
| Dewpoint | 55°F (13°C) |
| Visibility | 10.00 mi |
| Heat Index | 79°F (26°C) |
| Last update | 20 Jun 12:55 pm CDT |
Extended Forecast for
Pontoosuc IL
Flood Watch June 21, 07:00am until June 21, 07:00pm
This Afternoon

High: 80 °F
Sunny
Tonight
Low: 64 °F
Mostly Cloudy
then Chance
ShowersSunday

High: 71 °F
Heavy Rain
Sunday Night

Low: 59 °F
Showers
LikelyMonday

High: 74 °F
Mostly Sunny
Monday Night

Low: 59 °F
Mostly Clear
Tuesday

High: 77 °F
Sunny
Tuesday Night

Low: 62 °F
Mostly Clear
Wednesday

High: 78 °F
Sunny
Detailed Forecast
This Afternoon
Sunny, with a high near 80. Northwest wind around 5 mph.
Tonight
A 30 percent chance of showers and thunderstorms after 4am. Increasing clouds, with a low around 64. North wind around 5 mph becoming east after midnight.
Sunday
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 7am. Some of the storms could produce heavy rainfall. High near 71. East wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 100%. New rainfall amounts between 1 and 2 inches possible.
Sunday Night
Showers likely, mainly between 11pm and 1am. Mostly cloudy, with a low around 59. Northeast wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 60%.
Monday
Mostly sunny, with a high near 74.
Monday Night
Mostly clear, with a low around 59.
Tuesday
Sunny, with a high near 77.
Tuesday Night
Mostly clear, with a low around 62.
Wednesday
Sunny, with a high near 78.
Wednesday Night
Mostly clear, with a low around 61.
Thursday
Mostly sunny, with a high near 77.
Thursday Night
Mostly clear, with a low around 61.
Friday
Mostly sunny, with a high near 78.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
Pontoosuc IL
40.63°N 91.21°W (Elev. 531 ft)
40.63°N 91.21°W (Elev. 531 ft)
12:46 pm CDT Jun 20, 2026
1pm CDT Jun 20, 2026-6pm CDT Jun 26, 2026



