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

Marion - Williamson County Regional Airport (KMWA)

Lat: 37.77°NLon: 89.01°WElev: 486ft.

Partly Cloudy

81°F

27°C

Humidity 42%
Wind Speed NW 7 mph
Barometer 30.15 in
Dewpoint 55°F (13°C)
Visibility 10.00 mi
Heat Index81°F (27°C)
Last update 23 Jun 2:45 pm CDT
Extended Forecast for

2 Miles SE Frankfort Heights IL

  • This Afternoon

    This Afternoon: Sunny, with a high near 82. North wind around 5 mph.

    High: 82 °F

    Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 61. Light north wind.

    Low: 61 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 84. Calm wind becoming south around 5 mph in the afternoon.

    High: 84 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: A 30 percent chance of showers, mainly after 4am. Partly cloudy, with a low around 67. South wind around 5 mph becoming calm in the evening.

    Low: 67 °F

    Mostly Cloudy
    then Chance
    Showers

  • Thursday

    Thursday: A 50 percent chance of showers and thunderstorms, mainly after 1pm. Partly sunny, with a high near 87. Calm wind becoming southwest around 5 mph in the afternoon.

    High: 87 °F

    Chance
    Showers then
    Chance
    T-storms

  • Thursday Night

    Thursday Night: Showers and possibly a thunderstorm. Low around 70. Light south wind. Chance of precipitation is 90%.

    Low: 70 °F

    Showers

  • Friday

    Friday: Showers, with thunderstorms also possible after 7am. High near 84. Southwest wind 5 to 10 mph. Chance of precipitation is 80%.

    High: 84 °F

    Showers

  • Friday Night

    Friday Night: Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 72. Southwest wind 5 to 7 mph becoming calm in the evening.

    Low: 72 °F

    Showers
    Likely

  • Saturday

    Saturday: A chance of showers and thunderstorms. Partly sunny, with a high near 89. Southwest wind 3 to 8 mph.

    High: 89 °F

    Chance
    T-storms

Detailed Forecast

This Afternoon
Sunny, with a high near 82. North wind around 5 mph.
Tonight
Partly cloudy, with a low around 61. Light north wind.
Wednesday
Mostly sunny, with a high near 84. Calm wind becoming south around 5 mph in the afternoon.
Wednesday Night
A 30 percent chance of showers, mainly after 4am. Partly cloudy, with a low around 67. South wind around 5 mph becoming calm in the evening.
Thursday
A 50 percent chance of showers and thunderstorms, mainly after 1pm. Partly sunny, with a high near 87. Calm wind becoming southwest around 5 mph in the afternoon.
Thursday Night
Showers and possibly a thunderstorm. Low around 70. Light south wind. Chance of precipitation is 90%.
Friday
Showers, with thunderstorms also possible after 7am. High near 84. Southwest wind 5 to 10 mph. Chance of precipitation is 80%.
Friday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 72. Southwest wind 5 to 7 mph becoming calm in the evening.
Saturday
A chance of showers and thunderstorms. Partly sunny, with a high near 89. Southwest wind 3 to 8 mph.
Saturday Night
A chance of showers and thunderstorms, mainly before 1am. Partly cloudy, with a low around 73. South wind 3 to 5 mph.
Sunday
Mostly sunny, with a high near 95. South southwest wind 6 to 13 mph, with gusts as high as 20 mph.
Sunday Night
Mostly clear, with a low around 75. South southwest wind 6 to 10 mph.
Monday
Sunny and hot, with a high near 97. South southwest wind 6 to 11 mph.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles SE Frankfort Heights IL
 37.88°N 88.8°W
Last Update:
1:16 pm CDT Jun 23, 2026
Forecast Valid:
3pm CDT Jun 23, 2026-6pm CDT Jun 29, 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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation