Current conditions at

Marion - Williamson County Regional Airport (KMWA)

Lat: 37.77°NLon: 89.01°WElev: 486ft.

Overcast

45°F

7°C

Humidity 93%
Wind Speed S 6 mph
Barometer 29.98 in
Dewpoint 43°F (6°C)
Visibility 7.00 mi
Wind Chill42°F (6°C)
Last update 17 Feb 6:47 am CST
Extended Forecast for

2 Miles ENE Herrin IL

  • Today

    Today: Patchy fog before 9am.  Otherwise, mostly cloudy, with a high near 64. South wind 6 to 11 mph increasing to 12 to 17 mph in the afternoon. Winds could gust as high as 29 mph.

    High: 64 °F

    Patchy Fog
    then Cloudy

  • Tonight

    Tonight: A 20 percent chance of rain after 5am.  Mostly cloudy, with a steady temperature around 60. Breezy, with a south wind 16 to 21 mph, with gusts as high as 33 mph.

    Low: 60 °F

    Breezy.
    Cloudy then
    Slight Chance
    Rain

  • Wednesday

    Wednesday: Mostly sunny, with a high near 73. Southwest wind 8 to 17 mph, with gusts as high as 28 mph.

    High: 73 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: A 30 percent chance of showers after midnight.  Partly cloudy, with a low around 56. South wind around 7 mph.

    Low: 56 °F

    Partly Cloudy
    then Chance
    Showers

  • Thursday

    Thursday: A chance of showers, with thunderstorms also possible after noon.  Partly sunny, with a high near 72. South southwest wind 7 to 15 mph, with gusts as high as 25 mph.  Chance of precipitation is 50%.

    High: 72 °F

    Chance
    Showers then
    Chance
    T-storms

  • Thursday Night

    Thursday Night: A 30 percent chance of showers and thunderstorms before midnight.  Partly cloudy, with a low around 41. South southwest wind 9 to 14 mph becoming west after midnight. Winds could gust as high as 20 mph.

    Low: 41 °F

    Chance
    T-storms then
    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 56. West northwest wind 6 to 11 mph, with gusts as high as 18 mph.

    High: 56 °F

    Sunny

  • Friday Night

    Friday Night: A slight chance of showers after midnight.  Partly cloudy, with a low around 34. Light and variable wind becoming north around 6 mph after midnight.

    Low: 34 °F

    Partly Cloudy
    then Slight
    Chance
    Showers

  • Saturday

    Saturday: A chance of showers, mainly after noon.  Mostly sunny, with a high near 48. North wind 6 to 9 mph.

    High: 48 °F

    Chance
    Showers

Detailed Forecast

Today
Patchy fog before 9am. Otherwise, mostly cloudy, with a high near 64. South wind 6 to 11 mph increasing to 12 to 17 mph in the afternoon. Winds could gust as high as 29 mph.
Tonight
A 20 percent chance of rain after 5am. Mostly cloudy, with a steady temperature around 60. Breezy, with a south wind 16 to 21 mph, with gusts as high as 33 mph.
Wednesday
Mostly sunny, with a high near 73. Southwest wind 8 to 17 mph, with gusts as high as 28 mph.
Wednesday Night
A 30 percent chance of showers after midnight. Partly cloudy, with a low around 56. South wind around 7 mph.
Thursday
A chance of showers, with thunderstorms also possible after noon. Partly sunny, with a high near 72. South southwest wind 7 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 50%.
Thursday Night
A 30 percent chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 41. South southwest wind 9 to 14 mph becoming west after midnight. Winds could gust as high as 20 mph.
Friday
Sunny, with a high near 56. West northwest wind 6 to 11 mph, with gusts as high as 18 mph.
Friday Night
A slight chance of showers after midnight. Partly cloudy, with a low around 34. Light and variable wind becoming north around 6 mph after midnight.
Saturday
A chance of showers, mainly after noon. Mostly sunny, with a high near 48. North wind 6 to 9 mph.
Saturday Night
A slight chance of rain and snow showers before midnight, then a slight chance of rain showers. Mostly clear, with a low around 28. Northwest wind 7 to 9 mph.
Sunday
Sunny, with a high near 42. Northwest wind 9 to 13 mph, with gusts as high as 21 mph.
Sunday Night
Mostly clear, with a low around 21. North northwest wind 6 to 8 mph.
Monday
Sunny, with a high near 41. North northwest wind 5 to 8 mph.
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles ENE Herrin IL
 37.8°N 89°W
5:32 am CST Feb 17, 2026
7am CST Feb 17, 2026-6pm CST Feb 23, 2026
 
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Additional Resources

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