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.

Fair

49°F

9°C

Humidity 54%
Wind Speed Calm
Barometer 30.11 in
Dewpoint 33°F (1°C)
Visibility 10.00 mi
Last update 18 Mar 11:55 pm CDT
Extended Forecast for

2 Miles ENE Herrin IL

  • Overnight

    Overnight: Mostly cloudy, with a steady temperature around 48. South southwest wind around 5 mph.

    Low: 48 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly cloudy through mid morning, then gradual clearing, with a high near 73. South southwest wind around 6 mph.

    High: 73 °F

    Becoming
    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 50. South wind 3 to 5 mph.

    Low: 50 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 80. West southwest wind 6 to 8 mph.

    High: 80 °F

    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 53. Southwest wind 3 to 6 mph.

    Low: 53 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 80. West wind 3 to 6 mph.

    High: 80 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 58. South southwest wind 3 to 7 mph.

    Low: 58 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 84. South southwest wind 8 to 14 mph, with gusts as high as 22 mph.

    High: 84 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 41. North wind around 14 mph, with gusts as high as 22 mph.

    Low: 41 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Mostly cloudy, with a steady temperature around 48. South southwest wind around 5 mph.
Thursday
Mostly cloudy through mid morning, then gradual clearing, with a high near 73. South southwest wind around 6 mph.
Thursday Night
Mostly clear, with a low around 50. South wind 3 to 5 mph.
Friday
Sunny, with a high near 80. West southwest wind 6 to 8 mph.
Friday Night
Partly cloudy, with a low around 53. Southwest wind 3 to 6 mph.
Saturday
Sunny, with a high near 80. West wind 3 to 6 mph.
Saturday Night
Mostly clear, with a low around 58. South southwest wind 3 to 7 mph.
Sunday
Sunny, with a high near 84. South southwest wind 8 to 14 mph, with gusts as high as 22 mph.
Sunday Night
Mostly cloudy, with a low around 41. North wind around 14 mph, with gusts as high as 22 mph.
Monday
Mostly sunny, with a high near 57. North northeast wind 10 to 13 mph, with gusts as high as 20 mph.
Monday Night
Mostly clear, with a low around 36. East northeast wind 5 to 8 mph.
Tuesday
Mostly sunny, with a high near 62. East southeast wind 5 to 8 mph.
Tuesday Night
Partly cloudy, with a low around 42. Southeast wind around 6 mph.
Wednesday
Partly sunny, with a high near 70. South wind 7 to 11 mph, with gusts as high as 18 mph.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles ENE Herrin IL
 37.8°N 89°W
Last Update:
11:36 pm CDT Mar 18, 2026
Forecast Valid:
12am CDT Mar 19, 2026-6pm CDT Mar 25, 2026
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation