Extreme Heat Across the Southern U.S.; Flash Flooding Threats in the Mid-Atlantic, Northeast, and Four Corners Region

Dangerous and extreme heat will remain across portions of the southern U.S. this week. Heavy rainfall may bring significant flash flooding across portions of the Mid-Atlantic and Northeast through the night, and additional flash flooding concerns across New England on Wednesday. Monsoonal thunderstorms will bring a flash flood risk to the Four Corners region, especially in burn scar areas Read More >

Current conditions at

Clinton Municipal Airport (KCWI)

Lat: 41.83°NLon: 90.33°WElev: 696ft.

Fair

68°F

20°C

Humidity 87%
Wind Speed E 8 mph
Barometer 29.96 in (1014.4 mb)
Dewpoint 64°F (18°C)
Visibility 10.00 mi
Last update 29 Jul 12:56 am CDT
Extended Forecast for

Fulton IL

  • Overnight

    Overnight: Mostly clear, with a low around 63. East wind around 5 mph becoming calm.

    Low: 63 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 86. Calm wind.

    High: 86 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 64. Calm wind.

    Low: 64 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 88. Calm wind becoming south around 5 mph in the afternoon.

    High: 88 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 66.

    Low: 66 °F

    Mostly Cloudy

  • Friday

    Friday: Showers likely, then showers and possibly a thunderstorm after 1pm.  High near 81. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.

    High: 81 °F

    Showers

  • Friday Night

    Friday Night: Showers likely and possibly a thunderstorm.  Mostly cloudy, with a low around 65. Chance of precipitation is 70%.

    Low: 65 °F

    Showers
    Likely

  • Saturday

    Saturday: A chance of showers, with thunderstorms also possible after 1pm.  Mostly cloudy, with a high near 80. Chance of precipitation is 50%.

    High: 80 °F

    Chance
    Showers then
    Chance
    T-storms

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 63.

    Low: 63 °F

    Partly Cloudy

Detailed Forecast

Overnight
Mostly clear, with a low around 63. East wind around 5 mph becoming calm.
Wednesday
Sunny, with a high near 86. Calm wind.
Wednesday Night
Mostly clear, with a low around 64. Calm wind.
Thursday
Sunny, with a high near 88. Calm wind becoming south around 5 mph in the afternoon.
Thursday Night
Mostly cloudy, with a low around 66.
Friday
Showers likely, then showers and possibly a thunderstorm after 1pm. High near 81. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.
Friday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 65. Chance of precipitation is 70%.
Saturday
A chance of showers, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 80. Chance of precipitation is 50%.
Saturday Night
Partly cloudy, with a low around 63.
Sunday
Sunny, with a high near 83.
Sunday Night
Mostly clear, with a low around 62.
Monday
Sunny, with a high near 85.
Monday Night
Mostly clear, with a low around 65.
Tuesday
Sunny, with a high near 88.
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ABOUT THIS FORECAST

 
Point Forecast:
Fulton IL
 41.88°N 90.17°W (Elev. 574 ft)
8:36 pm CDT Jul 28, 2026
1am CDT Jul 29, 2026-6pm CDT Aug 4, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database