Areas of Dangerous Heat and Heavy Rain with Possible Flooding into this Weekend

Hot temperatures and high humidity are forecast to continue across much of northeast Texas into the mid-Mississippi Valley into this weekend with heat advisories in effect. Heavy to excessive rainfall occurring at times through Saturday could bring areas of flooding across parts of the central Plains into the upper Midwest/Great Lakes, and Four Corners states. Read More >

Current conditions at

Fort Madison Municipal Airport (KFSW)

Lat: 40.66°NLon: 91.33°WElev: 719ft.

Mostly Cloudy

88°F

31°C

Humidity 70%
Wind Speed W 3 mph
Barometer 30.15 in
Dewpoint 77°F (25°C)
Visibility 10.00 mi
Heat Index100°F (38°C)
Last update 17 Sep 3:55 pm CDT
Extended Forecast for

Nauvoo IL

  • This Afternoon

    This Afternoon: Sunny, with a high near 87. Northwest wind around 5 mph.

    High: 87 °F

    Sunny

  • Tonight

    Tonight: A 10 percent chance of showers after 5am.  Increasing clouds, with a low around 69. North wind around 5 mph.

    Low: 69 °F

    Mostly Clear
    then Slight
    Chance
    Showers

  • Friday

    Friday: A 40 percent chance of showers and thunderstorms, mainly before 11am.  Mostly cloudy, then gradually becoming sunny, with a high near 85. East wind 5 to 10 mph becoming southeast in the afternoon.

    High: 85 °F

    Chance
    Showers then
    Slight Chance
    T-storms

  • Friday Night

    Friday Night: Partly cloudy, with a low around 72. Southeast wind 5 to 10 mph.

    Low: 72 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly cloudy, with a high near 88.

    High: 88 °F

    Mostly Cloudy

  • Saturday Night

    Saturday Night: Showers likely and possibly a thunderstorm.  Mostly cloudy, with a low around 69. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 69 °F

    Showers
    Likely

  • Sunday

    Sunday: Showers likely, with thunderstorms also possible after 1pm.  Mostly cloudy, with a high near 78. Chance of precipitation is 60%.

    High: 78 °F

    Showers
    Likely

  • Sunday Night

    Sunday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am.  Mostly cloudy, with a low around 63. Chance of precipitation is 60%.

    Low: 63 °F

    Chance
    T-storms then
    Showers
    Likely

  • Monday

    Monday: Showers likely, mainly before 1pm.  Mostly cloudy, with a high near 68. Chance of precipitation is 60%.

    High: 68 °F

    Showers
    Likely

Detailed Forecast

This Afternoon
Sunny, with a high near 87. Northwest wind around 5 mph.
Tonight
A 10 percent chance of showers after 5am. Increasing clouds, with a low around 69. North wind around 5 mph.
Friday
A 40 percent chance of showers and thunderstorms, mainly before 11am. Mostly cloudy, then gradually becoming sunny, with a high near 85. East wind 5 to 10 mph becoming southeast in the afternoon.
Friday Night
Partly cloudy, with a low around 72. Southeast wind 5 to 10 mph.
Saturday
Mostly cloudy, with a high near 88.
Saturday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 69. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
Sunday
Showers likely, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 78. Chance of precipitation is 60%.
Sunday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 63. Chance of precipitation is 60%.
Monday
Showers likely, mainly before 1pm. Mostly cloudy, with a high near 68. Chance of precipitation is 60%.
Monday Night
A 30 percent chance of showers after 1am. Mostly cloudy, with a low around 58.
Tuesday
Mostly cloudy, with a high near 65.
Tuesday Night
Mostly cloudy, with a low around 54.
Wednesday
Partly sunny, with a high near 70.
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ABOUT THIS FORECAST

 
Point Forecast:
Nauvoo IL
 40.55°N 91.36°W (Elev. 653 ft)
2:21 pm CDT Sep 17, 2026
4pm CDT Sep 17, 2026-6pm CDT Sep 23, 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