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.

Partly Cloudy

63°F

17°C

Humidity 88%
Wind Speed S 12 mph
Barometer 29.93 in
Dewpoint 59°F (15°C)
Visibility 10.00 mi
Last update 7 Mar 1:45 pm CST
Extended Forecast for

Colp IL

  • This Afternoon

    This Afternoon: Showers and thunderstorms likely, mainly before 4pm. Mostly cloudy, with a steady temperature around 61. South southwest wind 7 to 11 mph becoming west northwest. Winds could gust as high as 21 mph. Chance of precipitation is 60%.

    High: 61 °F

    Showers
    Likely

  • Tonight

    Tonight: Mostly cloudy, with a low around 40. West northwest wind 6 to 11 mph becoming light northwest after midnight.

    Low: 40 °F

    Mostly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 66. Calm wind becoming west southwest around 6 mph in the afternoon.

    High: 66 °F

    Sunny

  • Sunday Night

    Sunday Night: Clear, with a low around 46. South wind around 6 mph.

    Low: 46 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 74. South southwest wind 6 to 15 mph, with gusts as high as 23 mph.

    High: 74 °F

    Sunny

  • Monday Night

    Monday Night: A 20 percent chance of showers and thunderstorms after midnight. Partly cloudy, with a low around 61. South southwest wind 9 to 13 mph, with gusts as high as 22 mph.

    Low: 61 °F

    Mostly Clear
    then Slight
    Chance
    T-storms

  • Tuesday

    Tuesday: A 40 percent chance of showers and thunderstorms after noon. Mostly cloudy, with a high near 79. South southwest wind 9 to 16 mph, with gusts as high as 25 mph.

    High: 79 °F

    Mostly Cloudy
    then Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after midnight. Cloudy, with a low around 62. Breezy, with a south southwest wind 15 to 20 mph, with gusts as high as 28 mph.

    Low: 62 °F

    Chance
    T-storms and
    Breezy then
    Showers
    Likely

  • Wednesday

    Wednesday: Showers and possibly a thunderstorm. Cloudy, with a high near 73. South southwest wind 16 to 18 mph becoming northwest in the afternoon. Winds could gust as high as 29 mph.

    High: 73 °F

    Showers

Detailed Forecast

This Afternoon
Showers and thunderstorms likely, mainly before 4pm. Mostly cloudy, with a steady temperature around 61. South southwest wind 7 to 11 mph becoming west northwest. Winds could gust as high as 21 mph. Chance of precipitation is 60%.
Tonight
Mostly cloudy, with a low around 40. West northwest wind 6 to 11 mph becoming light northwest after midnight.
Sunday
Sunny, with a high near 66. Calm wind becoming west southwest around 6 mph in the afternoon.
Sunday Night
Clear, with a low around 46. South wind around 6 mph.
Monday
Sunny, with a high near 74. South southwest wind 6 to 15 mph, with gusts as high as 23 mph.
Monday Night
A 20 percent chance of showers and thunderstorms after midnight. Partly cloudy, with a low around 61. South southwest wind 9 to 13 mph, with gusts as high as 22 mph.
Tuesday
A 40 percent chance of showers and thunderstorms after noon. Mostly cloudy, with a high near 79. South southwest wind 9 to 16 mph, with gusts as high as 25 mph.
Tuesday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after midnight. Cloudy, with a low around 62. Breezy, with a south southwest wind 15 to 20 mph, with gusts as high as 28 mph.
Wednesday
Showers and possibly a thunderstorm. Cloudy, with a high near 73. South southwest wind 16 to 18 mph becoming northwest in the afternoon. Winds could gust as high as 29 mph.
Wednesday Night
A chance of showers before midnight. Partly cloudy, with a low around 34. Northwest wind 15 to 18 mph, with gusts as high as 25 mph.
Thursday
Sunny, with a high near 56. Northwest wind 6 to 14 mph, with gusts as high as 21 mph.
Thursday Night
Mostly cloudy, with a low around 41. South wind 5 to 13 mph, with gusts as high as 21 mph.
Friday
Partly sunny, with a high near 67. Southwest wind 13 to 18 mph, with gusts as high as 28 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Colp IL
 37.83°N 89.08°W
Last Update:
2:07 pm CST Mar 7, 2026
Forecast Valid:
2pm CST Mar 7, 2026-6pm CDT Mar 13, 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