Heavy Rainfall Along the Central Gulf Coast; Thunderstorms from the Plains to the Central Appalachians; Heat Across the East

A system in the Gulf could produce heavy rainfall and flash flooding for portions of the north-central Gulf Coast into Saturday. Widespread showers and thunderstorms are likely this afternoon into Friday from Central Plains into the mid-Mississippi Valley, Ohio Valley and Central Appalachians. Dangerous heat is expected from the Lower Mississippi Valley to the Mid-Atlantic today. Read More >

Current conditions at

Harrisburg-Raleigh Airport (KHSB)

Lat: 37.81°NLon: 88.54°WElev: 387ft.

Fair

83°F

28°C

Humidity 79%
Wind Speed SW 6 mph
Barometer 30.01 in
Dewpoint 76°F (24°C)
Visibility 10.00 mi
Heat Index91°F (33°C)
Last update 17 Jul 8:55 am CDT
Extended Forecast for

Thompsonville IL

Heat Advisory July 17, 12:00pm until July 17, 07:00pm
Click here for hazard details and duration
Heat Advisory
  • Today

    Today: A 50 percent chance of showers and thunderstorms, mainly after 1pm.  Partly sunny, with a high near 91. Southwest wind 3 to 6 mph.

    High: 91 °F

    Slight Chance
    T-storms then
    Chance
    T-storms

  • Tonight

    Tonight: A 50 percent chance of showers and thunderstorms.  Mostly cloudy, with a low around 73. South southwest wind around 5 mph becoming calm  in the evening.

    Low: 73 °F

    Chance
    T-storms

  • Friday

    Friday: Showers and thunderstorms likely, mainly after 1pm.  Partly sunny, with a high near 89. Calm wind becoming south around 5 mph in the afternoon.  Chance of precipitation is 70%.

    High: 89 °F

    T-storms
    Likely

  • Friday Night

    Friday Night: A 30 percent chance of showers and thunderstorms.  Mostly cloudy, with a low around 74. Light south wind.

    Low: 74 °F

    Chance
    T-storms

  • Saturday

    Saturday: A 50 percent chance of showers and thunderstorms.  Partly sunny, with a high near 91. South southwest wind 5 to 8 mph.

    High: 91 °F

    Chance
    T-storms

  • Saturday Night

    Saturday Night: A 20 percent chance of showers and thunderstorms.  Partly cloudy, with a low around 76. South southwest wind 3 to 6 mph.

    Low: 76 °F

    Slight Chance
    T-storms

  • Sunday

    Sunday: A 50 percent chance of showers and thunderstorms.  Partly sunny, with a high near 93. Southwest wind 3 to 6 mph.

    High: 93 °F

    Chance
    T-storms

  • Sunday Night

    Sunday Night: A chance of showers and thunderstorms.  Partly cloudy, with a low around 76. Light south wind.

    Low: 76 °F

    Chance
    T-storms

  • Monday

    Monday: A chance of showers and thunderstorms, mainly after 1pm.  Mostly sunny, with a high near 94. South southwest wind 3 to 7 mph.

    High: 94 °F

    Chance
    T-storms

Detailed Forecast

Today
A 50 percent chance of showers and thunderstorms, mainly after 1pm. Partly sunny, with a high near 91. Southwest wind 3 to 6 mph.
Tonight
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 73. South southwest wind around 5 mph becoming calm in the evening.
Friday
Showers and thunderstorms likely, mainly after 1pm. Partly sunny, with a high near 89. Calm wind becoming south around 5 mph in the afternoon. Chance of precipitation is 70%.
Friday Night
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 74. Light south wind.
Saturday
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 91. South southwest wind 5 to 8 mph.
Saturday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 76. South southwest wind 3 to 6 mph.
Sunday
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 93. Southwest wind 3 to 6 mph.
Sunday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 76. Light south wind.
Monday
A chance of showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 94. South southwest wind 3 to 7 mph.
Monday Night
Mostly clear, with a low around 77. South wind 3 to 6 mph.
Tuesday
A slight chance of showers and thunderstorms. Sunny, with a high near 96. South southwest wind 5 to 7 mph.
Tuesday Night
Mostly clear, with a low around 78. South wind 3 to 6 mph.
Wednesday
Sunny and hot, with a high near 97. Southwest wind 3 to 6 mph.
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ABOUT THIS FORECAST

 
Point Forecast:
Thompsonville IL
 37.91°N 88.77°W
7:31 am CDT Jul 17, 2025
9am CDT Jul 17, 2025-6pm CDT Jul 23, 2025
 
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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