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.

Fog/Mist

75°F

24°C

Humidity	100%
Wind Speed	E 3 mph
Barometer	29.92 in
Dewpoint	75°F (24°C)
Visibility	4.00 mi
Last update	26 Jul 1:55 am CDT

More Information:

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

Extended Forecast for

4 Miles S 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

Overnight
Low: 74 °F
Chance
Showers
Sunday
High: 95 °F
Chance
Showers then
Mostly Sunny
Sunday Night
Low: 77 °F
Partly Cloudy
Monday
High: 96 °F
Hot
Monday Night
Low: 74 °F
Mostly Clear
Tuesday
High: 89 °F
Mostly Sunny
Tuesday Night
Low: 67 °F
Partly Cloudy
Wednesday
High: 88 °F
Sunny
Wednesday Night
Low: 66 °F
Mostly Clear

Detailed Forecast

Overnight

A 30 percent chance of showers and thunderstorms after 5am. Mostly cloudy, with a low around 74. South wind around 5 mph.

Sunday

A chance of showers and thunderstorms before 9am, then a slight chance of showers between 9am and 10am. Mostly sunny and hot, with a high near 95. Heat index values as high as 110. South wind around 5 mph becoming west in the afternoon. Chance of precipitation is 30%.

Sunday Night

Partly cloudy, with a low around 77. Southwest wind 5 to 10 mph.

Monday

Sunny and hot, with a high near 96. Heat index values as high as 110. Southwest wind around 10 mph, with gusts as high as 20 mph.

Monday Night

Mostly clear, with a low around 74.

Tuesday

Mostly sunny, with a high near 89.

Tuesday Night

Partly cloudy, with a low around 67.

Wednesday

Sunny, with a high near 88.