Severe Thunderstorms Tonight in the Mid-Atlantic; Tropical Storm Bertha in the Gulf

Scattered thunderstorms with severe gusts, hail and a tornado risk are possible near a cold front from the Ohio Valley to the Mid-Atlantic tonight. Tropical Storm Bertha is expected to bring tropical storm conditions to portions of the Gulf Coast from the panhandle of Florida into Louisiana through Wednesday. Read More >

Current conditions at

Fort Madison Municipal Airport (KFSW)

Lat: 40.66° N Lon: 91.33° W Elev: 719 ft.

Fair

66°F

19°C

Humidity 83%
Wind Speed NW 7 mph
Barometer 29.97 in
Dewpoint 61°F (16°C)
Visibility 10.00 mi
Last update 21 Jul 10:15 pm CDT
Detailed forecast for

Lee County

Tonight
Clear, cooler with lows in the lower 60s. Northwest winds 10 to 15 mph with gusts up to 25 mph, becoming north around 5 mph after midnight.
Wednesday
Mostly sunny. Highs in the upper 70s. North winds 5 to 10 mph.
Wednesday Night
Partly cloudy in the evening, then becoming mostly clear. Lows in the upper 50s. Northeast winds around 5 mph.
Thursday
Sunny. Highs in the upper 70s. Southeast winds around 5 mph.
Thursday Night
Partly cloudy in the evening, then becoming mostly cloudy. Lows around 60. Southeast winds around 5 mph.
Friday
Partly sunny. A chance of showers in the morning. Highs in the upper 70s. Chance of rain 40 percent.
Friday Night And Saturday
Partly cloudy. Lows in the lower 60s. Highs in the upper 80s.
Saturday Night And Sunday
Mostly clear. Hot. Lows in the upper 60s. Highs in the mid 90s. Heat index values up to 105.
Sunday Night
Mostly clear in the evening, then becoming partly cloudy. Lows in the mid 70s. Heat index values up to 105 early in the evening.
Monday And Monday Night
Mostly clear. Hot. Highs in the mid 90s. Lows in the upper 60s. Heat index values up to 105.
Tuesday
Sunny, hot with highs around 90.



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932 PM CDT Tue Jul 21 2026
 
 

Additional Resources

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Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database