National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

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.

A Few Clouds

84°F

29°C

Humidity 74%
Wind Speed Vrbl 2 mph
Barometer 30.20 in
Dewpoint 75°F (24°C)
Visibility 10.00 mi
Heat Index92°F (33°C)
Last update 17 Sep 12:35 pm CDT
Extended Forecast for

Warsaw IL

  • This Afternoon

    This Afternoon: Sunny, with a high near 87. Heat index values as high as 100. Northwest wind around 5 mph.

    High: 87 °F

    Sunny

  • Tonight

    Tonight: A slight chance of showers and thunderstorms before 3am, then a slight chance of showers and thunderstorms after 5am. Partly cloudy, with a low around 71. Northeast wind around 5 mph. Chance of precipitation is 20%.

    Low: 71 °F

    Mostly Clear
    then Slight
    Chance
    T-storms

  • Friday

    Friday: A chance of showers and thunderstorms before 3pm, then a slight chance of showers between 3pm and 4pm. Mostly cloudy, then becoming sunny during the afternoon, with a high near 88. Heat index values as high as 100. East wind around 5 mph becoming southeast in the afternoon. Chance of precipitation is 40%.

    High: 88 °F

    Chance
    T-storms then
    Slight Chance
    Showers

  • Friday Night

    Friday Night: A 10 percent chance of showers and thunderstorms before 7pm. Mostly clear, with a low around 73. Southeast wind around 5 mph.

    Low: 73 °F

    Slight Chance
    T-storms then
    Partly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 91.

    High: 91 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Showers likely and possibly a thunderstorm before 10pm, then showers likely between 10pm and 1am, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 69. Chance of precipitation is 60%.

    Low: 69 °F

    Showers
    Likely

  • Sunday

    Sunday: A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 79.

    High: 79 °F

    Chance
    T-storms

  • 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 70%.

    Low: 63 °F

    Chance
    T-storms then
    Showers
    Likely

  • Monday

    Monday: Showers likely, mainly before 1pm. Mostly cloudy, with a high near 72. Chance of precipitation is 60%.

    High: 72 °F

    Showers
    Likely

Detailed Forecast

This Afternoon
Sunny, with a high near 87. Heat index values as high as 100. Northwest wind around 5 mph.
Tonight
A slight chance of showers and thunderstorms before 3am, then a slight chance of showers and thunderstorms after 5am. Partly cloudy, with a low around 71. Northeast wind around 5 mph. Chance of precipitation is 20%.
Friday
A chance of showers and thunderstorms before 3pm, then a slight chance of showers between 3pm and 4pm. Mostly cloudy, then becoming sunny during the afternoon, with a high near 88. Heat index values as high as 100. East wind around 5 mph becoming southeast in the afternoon. Chance of precipitation is 40%.
Friday Night
A 10 percent chance of showers and thunderstorms before 7pm. Mostly clear, with a low around 73. Southeast wind around 5 mph.
Saturday
Partly sunny, with a high near 91.
Saturday Night
Showers likely and possibly a thunderstorm before 10pm, then showers likely between 10pm and 1am, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 69. Chance of precipitation is 60%.
Sunday
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 79.
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 70%.
Monday
Showers likely, mainly before 1pm. Mostly cloudy, with a high near 72. Chance of precipitation is 60%.
Monday Night
A 30 percent chance of showers after 1am. Mostly cloudy, with a low around 59.
Tuesday
Partly sunny, with a high near 72.
Tuesday Night
Partly cloudy, with a low around 57.
Wednesday
Mostly sunny, with a high near 76.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Warsaw IL
 40.35°N 91.42°W (Elev. 627 ft)
Last Update:
12:41 pm CDT Sep 17, 2026
Forecast Valid:
12pm CDT Sep 17, 2026-6pm CDT Sep 23, 2026
 
Forecast Discussion
 
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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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation