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.

Fair

61°F

16°C

Humidity 98%
Wind Speed Calm
Barometer 30.15 in
Dewpoint 60°F (16°C)
Visibility 10.00 mi
Last update 24 Jun 3:35 am CDT
Extended Forecast for

Colp IL

  • Overnight

    Overnight: Partly cloudy, with a low around 62. Calm wind.

    Low: 62 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 83. Calm wind becoming south around 6 mph in the afternoon.

    High: 83 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: A slight chance of showers and thunderstorms before 4am, then a slight chance of showers after 5am. Partly cloudy, with a low around 67. South wind around 5 mph becoming calm in the evening. Chance of precipitation is 20%.

    Low: 67 °F

    Slight Chance
    T-storms

  • Thursday

    Thursday: A 50 percent chance of showers and thunderstorms, mainly after 5pm. Mostly sunny, with a high near 87. Calm wind becoming southwest around 5 mph in the afternoon.

    High: 87 °F

    Chance
    Showers then
    Chance
    T-storms

  • Thursday Night

    Thursday Night: Showers and thunderstorms likely, then showers and possibly a thunderstorm after 7pm. Low around 70. Light south wind. Chance of precipitation is 80%.

    Low: 70 °F

    T-storms
    Likely then
    Showers

  • Friday

    Friday: Showers likely and possibly a thunderstorm before 1pm, then a chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 84. South southwest wind 6 to 10 mph, with gusts as high as 18 mph. Chance of precipitation is 70%.

    High: 84 °F

    Showers
    Likely

  • Friday Night

    Friday Night: Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 71. South southwest wind 3 to 8 mph. Chance of precipitation is 70%.

    Low: 71 °F

    Showers
    Likely

  • Saturday

    Saturday: A chance of showers and thunderstorms. Partly sunny, with a high near 88. South southwest wind 5 to 7 mph.

    High: 88 °F

    Chance
    T-storms

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms, mainly before 1am. Partly cloudy, with a low around 73. South wind 3 to 5 mph.

    Low: 73 °F

    Chance
    T-storms

Detailed Forecast

Overnight
Partly cloudy, with a low around 62. Calm wind.
Wednesday
Mostly sunny, with a high near 83. Calm wind becoming south around 6 mph in the afternoon.
Wednesday Night
A slight chance of showers and thunderstorms before 4am, then a slight chance of showers after 5am. Partly cloudy, with a low around 67. South wind around 5 mph becoming calm in the evening. Chance of precipitation is 20%.
Thursday
A 50 percent chance of showers and thunderstorms, mainly after 5pm. Mostly sunny, with a high near 87. Calm wind becoming southwest around 5 mph in the afternoon.
Thursday Night
Showers and thunderstorms likely, then showers and possibly a thunderstorm after 7pm. Low around 70. Light south wind. Chance of precipitation is 80%.
Friday
Showers likely and possibly a thunderstorm before 1pm, then a chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 84. South southwest wind 6 to 10 mph, with gusts as high as 18 mph. Chance of precipitation is 70%.
Friday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 71. South southwest wind 3 to 8 mph. Chance of precipitation is 70%.
Saturday
A chance of showers and thunderstorms. Partly sunny, with a high near 88. South southwest wind 5 to 7 mph.
Saturday Night
A chance of showers and thunderstorms, mainly before 1am. Partly cloudy, with a low around 73. South wind 3 to 5 mph.
Sunday
Sunny, with a high near 92. South southwest wind 5 to 11 mph.
Sunday Night
Mostly clear, with a low around 75. South wind 5 to 8 mph.
Monday
Sunny, with a high near 94. South southwest wind 5 to 9 mph.
Monday Night
Clear, with a low around 76. South wind 3 to 7 mph.
Tuesday
Sunny, with a high near 95. South southwest wind 3 to 7 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Colp IL
 37.81°N 89.11°W
Last Update:
1:26 am CDT Jun 24, 2026
Forecast Valid:
3am CDT Jun 24, 2026-6pm CDT Jun 30, 2026
 
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