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

Hazardous Weather Conditions

Current conditions at

Marion - Williamson County Regional Airport (KMWA)

Lat: 37.77°NLon: 89.01°WElev: 486ft.

Fair

79°F

26°C

Humidity 89%
Wind Speed N 7 mph
Barometer 29.90 in
Dewpoint 75°F (24°C)
Visibility 10.00 mi
Heat Index83°F (28°C)
Last update 6 Sep 3:15 am CDT
Extended Forecast for

2 Miles NE Herrin IL

  • Overnight

    Overnight: Partly cloudy, with a steady temperature around 76. Light north northeast wind.

    Low: 76 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 94. Northeast wind 6 to 10 mph.

    High: 94 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 64. East northeast wind 5 to 9 mph.

    Low: 64 °F

    Mostly Clear

  • Labor Day

    Labor Day: Sunny, with a high near 91. East northeast wind 5 to 8 mph.

    High: 91 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 64. East wind around 5 mph becoming calm in the evening.

    Low: 64 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 96. Calm wind becoming south 5 to 7 mph in the morning.

    High: 96 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 72. Light south wind increasing to 5 to 9 mph after midnight.

    Low: 72 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny and hot, with a high near 99. South southwest wind 9 to 14 mph, with gusts as high as 18 mph.

    High: 99 °F

    Hot

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 73. Southwest wind around 6 mph.

    Low: 73 °F

    Mostly Clear
    then Chance
    Showers

Detailed Forecast

Overnight
Partly cloudy, with a steady temperature around 76. Light north northeast wind.
Sunday
Mostly sunny, with a high near 94. Northeast wind 6 to 10 mph.
Sunday Night
Mostly clear, with a low around 64. East northeast wind 5 to 9 mph.
Labor Day
Sunny, with a high near 91. East northeast wind 5 to 8 mph.
Monday Night
Mostly clear, with a low around 64. East wind around 5 mph becoming calm in the evening.
Tuesday
Sunny, with a high near 96. Calm wind becoming south 5 to 7 mph in the morning.
Tuesday Night
Mostly clear, with a low around 72. Light south wind increasing to 5 to 9 mph after midnight.
Wednesday
Sunny and hot, with a high near 99. South southwest wind 9 to 14 mph, with gusts as high as 18 mph.
Wednesday Night
A chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 73. Southwest wind around 6 mph.
Thursday
A chance of showers and thunderstorms, mainly before 1pm. Partly sunny, with a high near 89. Northwest wind 5 to 8 mph.
Thursday Night
A slight chance of showers. Partly cloudy, with a low around 65. Light and variable wind.
Friday
A slight chance of showers. Sunny, with a high near 89. Calm wind becoming south around 5 mph in the afternoon.
Friday Night
A slight chance of showers. Mostly clear, with a low around 64. Calm wind.
Saturday
A slight chance of showers. Sunny, with a high near 92. Calm wind becoming southwest 5 to 8 mph in the morning.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles NE Herrin IL
 37.83°N 89°W
Last Update:
1:26 am CDT Sep 6, 2026
Forecast Valid:
3am CDT Sep 6, 2026-6pm CDT Sep 12, 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