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.

Overcast

52°F

11°C

Humidity 77%
Wind Speed NW 8 mph
Barometer 30.23 in
Dewpoint 45°F (7°C)
Visibility 10.00 mi
Wind Chill49°F (9°C)
Last update 20 May 2:15 am CDT
Extended Forecast for

2 Miles ESE Nauvoo IL

  • Overnight

    Overnight: Mostly cloudy, with a low around 49. North wind around 10 mph.

    Low: 49 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly cloudy through mid morning, then gradual clearing, with a high near 67. Northeast wind around 10 mph.

    High: 67 °F

    Becoming
    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 47. Northeast wind 5 to 10 mph.

    Low: 47 °F

    Mostly Clear

  • Thursday

    Thursday: Partly sunny, with a high near 70. East wind around 10 mph, with gusts as high as 20 mph.

    High: 70 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: A 40 percent chance of showers after 1am.  Mostly cloudy, with a low around 52.

    Low: 52 °F

    Mostly Cloudy
    then Chance
    Showers

  • Friday

    Friday: Showers.  High near 65. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.

    High: 65 °F

    Showers

  • Friday Night

    Friday Night: A 30 percent chance of showers before 1am.  Mostly cloudy, with a low around 54.

    Low: 54 °F

    Chance
    Showers

  • Saturday

    Saturday: Mostly cloudy, with a high near 76.

    High: 76 °F

    Mostly Cloudy

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 57.

    Low: 57 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Mostly cloudy, with a low around 49. North wind around 10 mph.
Wednesday
Mostly cloudy through mid morning, then gradual clearing, with a high near 67. Northeast wind around 10 mph.
Wednesday Night
Mostly clear, with a low around 47. Northeast wind 5 to 10 mph.
Thursday
Partly sunny, with a high near 70. East wind around 10 mph, with gusts as high as 20 mph.
Thursday Night
A 40 percent chance of showers after 1am. Mostly cloudy, with a low around 52.
Friday
Showers. High near 65. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.
Friday Night
A 30 percent chance of showers before 1am. Mostly cloudy, with a low around 54.
Saturday
Mostly cloudy, with a high near 76.
Saturday Night
Mostly cloudy, with a low around 57.
Sunday
Partly sunny, with a high near 80.
Sunday Night
Partly cloudy, with a low around 58.
Memorial Day
Partly sunny, with a high near 83.
Monday Night
Partly cloudy, with a low around 61.
Tuesday
Partly sunny, with a high near 86.
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles ESE Nauvoo IL
 40.55°N 91.36°W (Elev. 653 ft)
2:21 am CDT May 20, 2026
2am CDT May 20, 2026-6pm CDT May 26, 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