Hazardous Weather Conditions

Current conditions at

Marion - Williamson County Regional Airport (KMWA)

Lat: 37.77°NLon: 89.01°WElev: 486ft.

Overcast

72°F

22°C

Humidity 88%
Wind Speed SW 12 mph
Barometer 29.70 in
Dewpoint 68°F (20°C)
Visibility 10.00 mi
Last update 1 Aug 4:47 pm CDT
Extended Forecast for

Pittsburg IL

  • This Afternoon

    This Afternoon: A 20 percent chance of showers.  Mostly cloudy, with a steady temperature around 71. West wind around 9 mph.

    High: 71 °F

    Slight Chance
    Showers

  • Tonight

    Tonight: A 30 percent chance of showers, mainly after 9pm.  Mostly cloudy, with a low around 66. West wind 5 to 8 mph becoming calm.

    Low: 66 °F

    Chance
    Showers

  • Sunday

    Sunday: A chance of showers, with thunderstorms also possible after 1pm.  Cloudy, then gradually becoming mostly sunny, with a high near 79. North northwest wind 8 to 14 mph, with gusts as high as 21 mph.  Chance of precipitation is 50%.

    High: 79 °F

    Chance
    Showers

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 66. North wind 5 to 11 mph, with gusts as high as 18 mph.

    Low: 66 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 84. North wind 5 to 8 mph.

    High: 84 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 65. North northeast wind around 5 mph becoming calm  in the evening.

    Low: 65 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 86. Calm wind becoming north northeast around 5 mph in the afternoon.

    High: 86 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 66. Calm wind.

    Low: 66 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 89. Calm wind becoming southwest around 6 mph in the afternoon.

    High: 89 °F

    Sunny

Detailed Forecast

This Afternoon
A 20 percent chance of showers. Mostly cloudy, with a steady temperature around 71. West wind around 9 mph.
Tonight
A 30 percent chance of showers, mainly after 9pm. Mostly cloudy, with a low around 66. West wind 5 to 8 mph becoming calm.
Sunday
A chance of showers, with thunderstorms also possible after 1pm. Cloudy, then gradually becoming mostly sunny, with a high near 79. North northwest wind 8 to 14 mph, with gusts as high as 21 mph. Chance of precipitation is 50%.
Sunday Night
Partly cloudy, with a low around 66. North wind 5 to 11 mph, with gusts as high as 18 mph.
Monday
Mostly sunny, with a high near 84. North wind 5 to 8 mph.
Monday Night
Mostly clear, with a low around 65. North northeast wind around 5 mph becoming calm in the evening.
Tuesday
Sunny, with a high near 86. Calm wind becoming north northeast around 5 mph in the afternoon.
Tuesday Night
Mostly clear, with a low around 66. Calm wind.
Wednesday
Sunny, with a high near 89. Calm wind becoming southwest around 6 mph in the afternoon.
Wednesday Night
A slight chance of showers and thunderstorms after 1am. Mostly clear, with a low around 69. Calm wind.
Thursday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 89. Calm wind becoming south 5 to 8 mph in the morning.
Thursday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 71. South wind 3 to 6 mph.
Friday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 91. South southwest wind 5 to 9 mph.
Friday Night
Mostly clear, with a low around 72. South southwest wind 3 to 6 mph.
Saturday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 93. South southwest wind 5 to 10 mph.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
Pittsburg IL
 37.78°N 88.86°W
4:26 pm CDT Aug 1, 2026
5pm CDT Aug 1, 2026-6pm CDT Aug 8, 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