Excessive Rainfall Potential for the Southeast; Heat Expands for Center of the Nation; Critical Fire Weather for Pacific Northwest

Flash flooding threatens areas from the Tennessee Valley to the Carolinas as storms repeat along a stalled front. Monsoonal storms may trigger flooding in the Southwest. Dangerous heat expands across the Desert Southwest, Plains, mid-Mississippi Valley and Southern Tier. Critical fire weather for interior Pacific Northwest. Cooler, drier air brings brief relief to the Great Lakes and Northeast. Read More >

Hazardous Weather Conditions

Current conditions at

Fort Madison Municipal Airport (KFSW)

Lat: 40.66°NLon: 91.33°WElev: 719ft.

Fair

79°F

26°C

Humidity	94%
Wind Speed	SE 3 mph
Barometer	29.92 in
Dewpoint	77°F (25°C)
Visibility	9.00 mi
Heat Index	83°F (28°C)
Last update	25 Jul 8:55 pm CDT

More Information:

Local Forecast Office More Local Wx 3 Day History Hourly Weather Forecast

Extended Forecast for

3 Miles E Denmark IA

Extreme Heat Watch July 26, 09:00pm until July 27, 10:00pm

Extreme Heat Warning July 26, 11:00am until July 26, 09:00pm

Click here for hazard details and duration

Extreme Heat Watch

Extreme Heat Warning

Tonight
Low: 73 °F
Mostly Clear
then Chance
T-storms
Sunday
High: 93 °F
Chance
T-storms
Sunday Night
Low: 76 °F
Slight Chance
T-storms then
Partly Cloudy
Monday
High: 94 °F
Becoming
Sunny
Monday Night
Low: 73 °F
Mostly Clear
Tuesday
High: 89 °F
Mostly Sunny
Tuesday Night
Low: 68 °F
Mostly Clear
Wednesday
High: 88 °F
Sunny
Wednesday Night
Low: 67 °F
Mostly Clear

Detailed Forecast

Tonight

A 30 percent chance of showers and thunderstorms, mainly after 5am. Partly cloudy, with a low around 73. Southeast wind around 5 mph.

Sunday

A 40 percent chance of showers and thunderstorms, mainly before 9am. Partly sunny, with a high near 93. Heat index values as high as 109. South wind 5 to 10 mph becoming west in the afternoon.

Sunday Night

A 20 percent chance of showers and thunderstorms before 9pm. Partly cloudy, with a low around 76. Southwest wind around 5 mph.

Monday

Mostly cloudy through mid morning, then gradual clearing, with a high near 94. Heat index values as high as 107. Southwest wind 5 to 10 mph, with gusts as high as 20 mph.

Monday Night

Mostly clear, with a low around 73.

Tuesday

Mostly sunny, with a high near 89.

Tuesday Night

Mostly clear, with a low around 68.

Wednesday

Sunny, with a high near 88.

Wednesday Night

Mostly clear, with a low around 67.

Thursday

Mostly sunny, with a high near 87.