National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Marion - Williamson County Regional Airport (KMWA)

Lat: 37.77°NLon: 89.01°WElev: 486ft.

Mostly Cloudy

81°F

27°C

Humidity 79%
Wind Speed SE 9 mph
Barometer 29.89 in
Dewpoint 73°F (23°C)
Visibility 10.00 mi
Heat Index86°F (30°C)
Last update 16 Jun 5:45 pm CDT
Extended Forecast for

4 Miles SE Pittsburg IL

Flood Watch until June 17, 12:00am
Click here for hazard details and duration
Flood Watch
  •  
    Flood Watch until June 17, 12:00am

    NOW until 12:00am Tue

    Flood Watch

  • Tonight

    Low: 70 °F

    Heavy Rain
    then Chance
    T-storms

  • Tuesday

    Tuesday: A 50 percent chance of showers and thunderstorms. Cloudy, then gradually becoming mostly sunny, with a high near 85. South southwest wind 3 to 7 mph.

    High: 85 °F

    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 73. South wind 5 to 7 mph.

    Low: 73 °F

    Partly Cloudy

  • Wednesday

    Wednesday: A chance of showers before 10am, then a chance of showers and thunderstorms between 10am and 1pm, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 87. South southwest wind 10 to 15 mph, with gusts as high as 24 mph. Chance of precipitation is 60%.

    High: 87 °F

    Chance
    Showers then
    Showers
    Likely

  • Wednesday Night

    Wednesday Night: Showers likely and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms after 1am. Some of the storms could produce heavy rainfall. Mostly cloudy, with a low around 71. South southwest wind 7 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 70%.

    Low: 71 °F

    Heavy Rain

  • Juneteenth

    Juneteenth: A slight chance of thunderstorms before 7am. Mostly sunny, with a high near 85. West northwest wind around 6 mph. Chance of precipitation is 10%.

    High: 85 °F

    Slight Chance
    T-storms then
    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 68. Calm wind.

    Low: 68 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 89. Calm wind becoming south southwest 5 to 7 mph in the afternoon.

    High: 89 °F

    Sunny

Detailed Forecast

Tonight
Showers and possibly a thunderstorm, mainly before 10pm, then a chance of showers and thunderstorms after 10pm. Some of the storms could produce heavy rainfall. Low around 70. Calm wind. Chance of precipitation is 80%.
Tuesday
A 50 percent chance of showers and thunderstorms. Cloudy, then gradually becoming mostly sunny, with a high near 85. South southwest wind 3 to 7 mph.
Tuesday Night
Partly cloudy, with a low around 73. South wind 5 to 7 mph.
Wednesday
A chance of showers before 10am, then a chance of showers and thunderstorms between 10am and 1pm, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 87. South southwest wind 10 to 15 mph, with gusts as high as 24 mph. Chance of precipitation is 60%.
Wednesday Night
Showers likely and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms after 1am. Some of the storms could produce heavy rainfall. Mostly cloudy, with a low around 71. South southwest wind 7 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 70%.
Juneteenth
A slight chance of thunderstorms before 7am. Mostly sunny, with a high near 85. West northwest wind around 6 mph. Chance of precipitation is 10%.
Thursday Night
Mostly clear, with a low around 68. Calm wind.
Friday
Sunny, with a high near 89. Calm wind becoming south southwest 5 to 7 mph in the afternoon.
Friday Night
Mostly clear, with a low around 73. South wind around 6 mph.
Saturday
Sunny, with a high near 92. South southwest wind 6 to 11 mph, with gusts as high as 18 mph.
Saturday Night
Clear, with a low around 76. South southwest wind around 7 mph.
Sunday
Sunny, with a high near 93. South southwest wind 6 to 8 mph.
Sunday Night
Mostly clear, with a low around 75. South wind 3 to 6 mph.
Monday
A chance of showers and thunderstorms. Sunny, with a high near 92. South southwest wind 3 to 8 mph.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles SE Pittsburg IL
 37.73°N 88.81°W
Last Update:
6:17 pm CDT Jun 16, 2025
Forecast Valid:
6pm CDT Jun 16, 2025-6pm CDT Jun 23, 2025
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation