Current conditions at

Marion - Williamson County Regional Airport (KMWA)

Lat: 37.77°NLon: 89.01°WElev: 486ft.

Fair

50°F

10°C

Humidity 76%
Wind Speed N 9 mph
Barometer 30.42 in
Dewpoint 43°F (6°C)
Visibility 10.00 mi
Wind Chill46°F (8°C)
Last update 17 Oct 2:15 am CDT
Extended Forecast for

2 Miles NNW Pittsburg IL

Frost Advisory October 17, 09:00pm until October 18, 08:00am
Click here for hazard details and duration
Frost Advisory
  • Overnight

    Overnight: Mostly clear, with a low around 41. North wind around 13 mph, with gusts as high as 20 mph.

    Low: 41 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 61. North northeast wind 9 to 11 mph.

    High: 61 °F

    Sunny

  • Saturday Night

    Saturday Night: Areas of frost after 4am.  Otherwise, clear, with a low around 34. Calm wind.

    Low: 34 °F

    Clear then
    Areas Frost

  • Sunday

    Sunday: Areas of frost before 9am.  Otherwise, sunny, with a high near 67. Calm wind becoming southeast around 6 mph in the morning.

    High: 67 °F

    Areas Frost
    then Sunny

  • Sunday Night

    Sunday Night: Clear, with a low around 38. Calm wind.

    Low: 38 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 71. Light and variable wind.

    High: 71 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 41. Calm wind.

    Low: 41 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 74. Calm wind becoming east northeast around 5 mph in the afternoon.

    High: 74 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 44. Calm wind.

    Low: 44 °F

    Mostly Clear

Detailed Forecast

Overnight
Mostly clear, with a low around 41. North wind around 13 mph, with gusts as high as 20 mph.
Saturday
Sunny, with a high near 61. North northeast wind 9 to 11 mph.
Saturday Night
Areas of frost after 4am. Otherwise, clear, with a low around 34. Calm wind.
Sunday
Areas of frost before 9am. Otherwise, sunny, with a high near 67. Calm wind becoming southeast around 6 mph in the morning.
Sunday Night
Clear, with a low around 38. Calm wind.
Monday
Sunny, with a high near 71. Light and variable wind.
Monday Night
Mostly clear, with a low around 41. Calm wind.
Tuesday
Sunny, with a high near 74. Calm wind becoming east northeast around 5 mph in the afternoon.
Tuesday Night
Mostly clear, with a low around 44. Calm wind.
Wednesday
Sunny, with a high near 78. Light and variable wind.
Wednesday Night
Clear, with a low around 46. Calm wind.
Thursday
Sunny, with a high near 81. Light north wind.
Thursday Night
Mostly clear, with a low around 49. Calm wind.
Friday
Sunny, with a high near 82. Calm wind becoming east around 6 mph in the afternoon.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles NNW Pittsburg IL
 37.8°N 88.86°W
1:26 am CDT Oct 17, 2026
2am CDT Oct 17, 2026-6pm CDT Oct 23, 2026
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database