Severe Thunderstorms and Flooding from the Southern Plains to the Great Lakes; Record Heat in the East

Widely scattered severe thunderstorms may produce damaging winds, hail, and flash flooding from the southern Plains into the lower Great Lakes. Elevated to locally critical fire weather conditions will persist across portions of the Southwest and Southern High Plains due to gusty winds and dry conditions. An early-season heatwave will challenge temperature records across the eastern U.S.. Read More >

Current conditions at

Fort Madison Municipal Airport (KFSW)

Lat: 40.66°NLon: 91.33°WElev: 719ft.

Mostly Cloudy

66°F

19°C

Humidity 94%
Wind Speed S 9 mph
Barometer 29.93 in
Dewpoint 64°F (18°C)
Visibility 10.00 mi
Last update 19 May 8:15 am CDT
Extended Forecast for

Dallas City IL

  • Today

    Today: A 40 percent chance of showers and thunderstorms, mainly before 10am.  Mostly cloudy, with a high near 69. Southwest wind around 15 mph becoming northwest in the afternoon. Winds could gust as high as 20 mph.

    High: 69 °F

    Chance
    Showers then
    Mostly Cloudy

  • Tonight

    Tonight: Mostly cloudy, with a low around 47. North wind 10 to 15 mph, with gusts as high as 20 mph.

    Low: 47 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 67. Northeast wind around 10 mph, with gusts as high as 20 mph.

    High: 67 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 46. East wind 5 to 10 mph.

    Low: 46 °F

    Partly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 69.

    High: 69 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: A 50 percent chance of showers after 1am.  Mostly cloudy, with a low around 52.

    Low: 52 °F

    Mostly Cloudy
    then Chance
    Showers

  • Friday

    Friday: Showers likely.  Mostly cloudy, with a high near 66. Chance of precipitation is 70%.

    High: 66 °F

    Showers
    Likely

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 53.

    Low: 53 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly cloudy, with a high near 76.

    High: 76 °F

    Mostly Cloudy

Detailed Forecast

Today
A 40 percent chance of showers and thunderstorms, mainly before 10am. Mostly cloudy, with a high near 69. Southwest wind around 15 mph becoming northwest in the afternoon. Winds could gust as high as 20 mph.
Tonight
Mostly cloudy, with a low around 47. North wind 10 to 15 mph, with gusts as high as 20 mph.
Wednesday
Mostly sunny, with a high near 67. Northeast wind around 10 mph, with gusts as high as 20 mph.
Wednesday Night
Partly cloudy, with a low around 46. East wind 5 to 10 mph.
Thursday
Partly sunny, with a high near 69.
Thursday Night
A 50 percent chance of showers after 1am. Mostly cloudy, with a low around 52.
Friday
Showers likely. Mostly cloudy, with a high near 66. Chance of precipitation is 70%.
Friday Night
Mostly cloudy, with a low around 53.
Saturday
Mostly cloudy, with a high near 76.
Saturday Night
Mostly cloudy, with a low around 56.
Sunday
Partly sunny, with a high near 82.
Sunday Night
Partly cloudy, with a low around 61.
Memorial Day
Partly sunny, with a high near 84.
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ABOUT THIS FORECAST

 
Point Forecast:
Dallas City IL
 40.61°N 91.15°W (Elev. 653 ft)
3:22 am CDT May 19, 2026
8am CDT May 19, 2026-6pm CDT May 25, 2026
 
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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