Severe Weather and Heavy Rainfall Potential for the Plains; Coastal Low Across the mid-Atlantic

An upper trough and frontal boundary will focus showers and thunderstorms across portions of the Plains through early Monday; A few severe thunderstorms along with heavy rainfall are expected. Meanwhile, low pressure off the Southeast Coast will bring inclement weather across the mid-Atlantic coast through Monday. This system is forecast to meander off the coast then track inland early this week. Read More >

Hazardous Weather Conditions

Current conditions at

Fort Madison Municipal Airport (KFSW)

Lat: 40.66°NLon: 91.33°WElev: 719ft.

Fair

68°F

20°C

Humidity 88%
Wind Speed E 5 mph
Barometer 30.07 in
Dewpoint 64°F (18°C)
Visibility 10.00 mi
Last update 15 Sep 6:15 am CDT
Extended Forecast for

2 Miles WNW Denmark IA

  • Today

    Today: A 20 percent chance of showers and thunderstorms after 4pm.  Partly sunny, with a high near 90. Southeast wind around 5 mph becoming east in the morning.

    High: 90 °F

    Mostly Cloudy
    then Slight
    Chance
    T-storms

  • Tonight

    Tonight: A 10 percent chance of showers and thunderstorms before 7pm.  Mostly cloudy, with a low around 65. Southeast wind around 5 mph becoming northeast in the evening.

    Low: 65 °F

    Slight Chance
    T-storms then
    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 90. East wind around 5 mph becoming calm.

    High: 90 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 60. Calm wind becoming east around 5 mph.

    Low: 60 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 89.

    High: 89 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 60.

    Low: 60 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 89.

    High: 89 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: A 40 percent chance of showers.  Mostly cloudy, with a low around 63.

    Low: 63 °F

    Chance
    Showers

  • Friday

    Friday: A 40 percent chance of showers and thunderstorms.  Partly sunny, with a high near 81.

    High: 81 °F

    Chance
    T-storms

Detailed Forecast

Today
A 20 percent chance of showers and thunderstorms after 4pm. Partly sunny, with a high near 90. Southeast wind around 5 mph becoming east in the morning.
Tonight
A 10 percent chance of showers and thunderstorms before 7pm. Mostly cloudy, with a low around 65. Southeast wind around 5 mph becoming northeast in the evening.
Tuesday
Mostly sunny, with a high near 90. East wind around 5 mph becoming calm.
Tuesday Night
Partly cloudy, with a low around 60. Calm wind becoming east around 5 mph.
Wednesday
Sunny, with a high near 89.
Wednesday Night
Partly cloudy, with a low around 60.
Thursday
Mostly sunny, with a high near 89.
Thursday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 63.
Friday
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 81.
Friday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 61.
Saturday
A 40 percent chance of showers. Partly sunny, with a high near 79.
Saturday Night
Mostly cloudy, with a low around 60.
Sunday
Partly sunny, with a high near 78.
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles WNW Denmark IA
 40.77°N 91.38°W (Elev. 725 ft)
5:31 am CDT Sep 15, 2025
6am CDT Sep 15, 2025-6pm CDT Sep 21, 2025
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database