Hazardous Weather Conditions

Current conditions at

Marion - Williamson County Regional Airport (KMWA)

Lat: 37.77°NLon: 89.01°WElev: 486ft.

Overcast

77°F

25°C

Humidity 89%
Wind Speed N 7 mph
Barometer 29.99 in
Dewpoint 73°F (23°C)
Visibility 10.00 mi
Heat Index78°F (26°C)
Last update 14 Oct 2:45 pm CDT
Extended Forecast for

Pittsburg IL

  • This Afternoon

    This Afternoon: A 30 percent chance of showers and thunderstorms.  Partly sunny, with a high near 81. Northwest wind around 6 mph.

    High: 81 °F

    Chance
    T-storms

  • Tonight

    Tonight: A 40 percent chance of showers and thunderstorms, mainly between 1am and 5am.  Mostly cloudy, with a low around 67. Calm wind.

    Low: 67 °F

    Chance
    T-storms

  • Thursday

    Thursday: A chance of showers and thunderstorms before 10am, then a chance of showers between 10am and 1pm.  Cloudy, then gradual clearing during the afternoon, with a high near 88. Light and variable wind becoming south southwest 8 to 13 mph in the morning. Winds could gust as high as 20 mph.  Chance of precipitation is 40%.

    High: 88 °F

    Chance
    Showers

  • Thursday Night

    Thursday Night: A slight chance of showers and thunderstorms before 3am, then a chance of showers between 3am and 4am.  Increasing clouds, with a low around 53. South southwest wind 7 to 16 mph becoming west northwest after midnight. Winds could gust as high as 24 mph.  Chance of precipitation is 30%.

    Low: 53 °F

    Slight Chance
    T-storms then
    Chance
    Showers

  • Friday

    Friday: Partly sunny, with a high near 59. Breezy, with a northwest wind 18 to 21 mph, with gusts as high as 29 mph.

    High: 59 °F

    Partly Sunny
    and Breezy

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 42. North northwest wind 10 to 17 mph, with gusts as high as 23 mph.

    Low: 42 °F

    Mostly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 62. North northeast wind 8 to 11 mph.

    High: 62 °F

    Sunny

  • Saturday Night

    Saturday Night: Clear, with a low around 37. Calm wind.

    Low: 37 °F

    Clear

  • Sunday

    Sunday: Sunny, with a high near 68. Calm wind becoming south southeast 5 to 7 mph in the morning.

    High: 68 °F

    Sunny

Detailed Forecast

This Afternoon
A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 81. Northwest wind around 6 mph.
Tonight
A 40 percent chance of showers and thunderstorms, mainly between 1am and 5am. Mostly cloudy, with a low around 67. Calm wind.
Thursday
A chance of showers and thunderstorms before 10am, then a chance of showers between 10am and 1pm. Cloudy, then gradual clearing during the afternoon, with a high near 88. Light and variable wind becoming south southwest 8 to 13 mph in the morning. Winds could gust as high as 20 mph. Chance of precipitation is 40%.
Thursday Night
A slight chance of showers and thunderstorms before 3am, then a chance of showers between 3am and 4am. Increasing clouds, with a low around 53. South southwest wind 7 to 16 mph becoming west northwest after midnight. Winds could gust as high as 24 mph. Chance of precipitation is 30%.
Friday
Partly sunny, with a high near 59. Breezy, with a northwest wind 18 to 21 mph, with gusts as high as 29 mph.
Friday Night
Mostly cloudy, with a low around 42. North northwest wind 10 to 17 mph, with gusts as high as 23 mph.
Saturday
Sunny, with a high near 62. North northeast wind 8 to 11 mph.
Saturday Night
Clear, with a low around 37. Calm wind.
Sunday
Sunny, with a high near 68. Calm wind becoming south southeast 5 to 7 mph in the morning.
Sunday Night
Mostly clear, with a low around 42. Calm wind.
Monday
Mostly sunny, with a high near 72. Calm wind becoming south around 6 mph in the morning.
Monday Night
Partly cloudy, with a low around 47. Calm wind.
Tuesday
Mostly sunny, with a high near 75. Calm wind becoming south southeast around 6 mph in the afternoon.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
Pittsburg IL
 37.78°N 88.86°W
2:56 pm CDT Oct 14, 2026
3pm CDT Oct 14, 2026-6pm CDT Oct 20, 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