Thunderstorms and Heavy Rains Across Portions of the Central and Eastern US; Heat Expands to Portions of the East

Widespread showers and thunderstorms, some severe, may produce heavy downpours and flash flooding across much of the eastern and central U.S. Dangerous heat will continue in the Pacific Northwest and expand across portions of the East. Deep tropical moisture and associated thunderstorms will bring heavy rainfall and localized flash flooding across portions of Florida into the central Gulf Coast. Read More >

Hazardous Weather Conditions

Current conditions at

Marion - Williamson County Regional Airport (KMWA)

Lat: 37.77°NLon: 89.01°WElev: 486ft.

Overcast

74°F

23°C

Humidity 97%
Wind Speed S 10 mph
Barometer 29.93 in
Dewpoint 73°F (23°C)
Visibility 10.00 mi
Last update 15 Jul 11:15 pm CDT
Extended Forecast for

3 Miles SE Tunnel Hill IL

  • Tonight

    Tonight: A 30 percent chance of showers and thunderstorms, mainly after 1am.  Mostly cloudy, with a low around 73. Light south wind.

    Low: 73 °F

    Chance
    T-storms

  • Wednesday

    Wednesday: A slight chance of thunderstorms before 7am, then a chance of showers and thunderstorms after 1pm.  Mostly sunny, with a high near 90. Southwest wind 5 to 8 mph.  Chance of precipitation is 30%.

    High: 90 °F

    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 75. South southwest wind 3 to 6 mph.

    Low: 75 °F

    Mostly Clear

  • Thursday

    Thursday: A slight chance of showers, then a chance of showers and thunderstorms after 10am.  Mostly sunny, with a high near 91. Southwest wind 5 to 7 mph.  Chance of precipitation is 40%.

    High: 91 °F

    Chance
    T-storms

  • Thursday Night

    Thursday Night: A 40 percent chance of showers and thunderstorms.  Mostly cloudy, with a low around 73. Light and variable wind.

    Low: 73 °F

    Chance
    T-storms

  • Friday

    Friday: A 50 percent chance of showers and thunderstorms.  Mostly cloudy, with a high near 87. Calm wind becoming south southeast around 5 mph.

    High: 87 °F

    Chance
    T-storms

  • Friday Night

    Friday Night: A 20 percent chance of showers and thunderstorms.  Mostly cloudy, with a low around 74. Calm wind.

    Low: 74 °F

    Slight Chance
    T-storms

  • Saturday

    Saturday: A chance of showers and thunderstorms, mainly after 1pm.  Mostly sunny, with a high near 88. Southwest wind 3 to 7 mph.

    High: 88 °F

    Chance
    T-storms

  • Saturday Night

    Saturday Night: A slight chance of showers and thunderstorms.  Partly cloudy, with a low around 75. South wind 3 to 5 mph.

    Low: 75 °F

    Slight Chance
    T-storms

Detailed Forecast

Tonight
A 30 percent chance of showers and thunderstorms, mainly after 1am. Mostly cloudy, with a low around 73. Light south wind.
Wednesday
A slight chance of thunderstorms before 7am, then a chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 90. Southwest wind 5 to 8 mph. Chance of precipitation is 30%.
Wednesday Night
Mostly clear, with a low around 75. South southwest wind 3 to 6 mph.
Thursday
A slight chance of showers, then a chance of showers and thunderstorms after 10am. Mostly sunny, with a high near 91. Southwest wind 5 to 7 mph. Chance of precipitation is 40%.
Thursday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 73. Light and variable wind.
Friday
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 87. Calm wind becoming south southeast around 5 mph.
Friday Night
A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 74. Calm wind.
Saturday
A chance of showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 88. Southwest wind 3 to 7 mph.
Saturday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 75. South wind 3 to 5 mph.
Sunday
A chance of showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 91. Southwest wind around 6 mph.
Sunday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 75. South wind around 5 mph becoming calm in the evening.
Monday
A chance of showers and thunderstorms. Partly sunny, with a high near 91. South wind 3 to 6 mph.
Monday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 75. South wind 3 to 5 mph.
Tuesday
A slight chance of showers and thunderstorms. Sunny, with a high near 92. South southwest wind 5 to 7 mph.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SE Tunnel Hill IL
 37.53°N 88.85°W
9:32 pm CDT Jul 15, 2025
11pm CDT Jul 15, 2025-6pm CDT Jul 22, 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