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

83°F

28°C

Humidity 67%
Wind Speed SW 6 mph
Barometer 30.03 in
Dewpoint 71°F (22°C)
Visibility 10.00 mi
Heat Index88°F (31°C)
Last update 27 Jun 7:55 pm CDT
Extended Forecast for

Colp IL

  • Tonight

    Tonight: A 40 percent chance of showers and thunderstorms, mainly after 4am. Partly cloudy, with a low around 73. South southwest wind around 5 mph becoming calm in the evening.

    Low: 73 °F

    Chance
    T-storms

  • Saturday

    Saturday: A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 89. Calm wind becoming southwest around 5 mph in the afternoon.

    High: 89 °F

    Chance
    T-storms

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 73. South southwest wind around 5 mph becoming calm in the evening. Chance of precipitation is 30%.

    Low: 73 °F

    Slight Chance
    T-storms then
    Chance
    Showers

  • Sunday

    Sunday: A chance of showers before 7am, then a chance of showers and thunderstorms between 7am and 1pm, then showers and possibly a thunderstorm after 1pm. High near 87. Calm wind becoming south southwest around 6 mph in the morning. Chance of precipitation is 80%.

    High: 87 °F

    Chance
    Showers then
    Showers

  • Sunday Night

    Sunday Night: A 50 percent chance of showers and thunderstorms, mainly after 1am. Mostly cloudy, with a low around 73. South wind around 5 mph becoming calm in the evening.

    Low: 73 °F

    Slight Chance
    T-storms then
    Chance
    T-storms

  • Monday

    Monday: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 1pm. High near 89. West southwest wind 5 to 7 mph. Chance of precipitation is 80%.

    High: 89 °F

    Chance
    T-storms then
    T-storms

  • Monday Night

    Monday Night: A 40 percent chance of showers and thunderstorms before 1am. Mostly cloudy, with a low around 71. West southwest wind around 5 mph becoming calm in the evening.

    Low: 71 °F

    Chance
    T-storms

  • Tuesday

    Tuesday: Mostly sunny, with a high near 87. North northwest wind 3 to 6 mph.

    High: 87 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 67. Light north northwest wind.

    Low: 67 °F

    Mostly Clear

Detailed Forecast

Tonight
A 40 percent chance of showers and thunderstorms, mainly after 4am. Partly cloudy, with a low around 73. South southwest wind around 5 mph becoming calm in the evening.
Saturday
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 89. Calm wind becoming southwest around 5 mph in the afternoon.
Saturday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 73. South southwest wind around 5 mph becoming calm in the evening. Chance of precipitation is 30%.
Sunday
A chance of showers before 7am, then a chance of showers and thunderstorms between 7am and 1pm, then showers and possibly a thunderstorm after 1pm. High near 87. Calm wind becoming south southwest around 6 mph in the morning. Chance of precipitation is 80%.
Sunday Night
A 50 percent chance of showers and thunderstorms, mainly after 1am. Mostly cloudy, with a low around 73. South wind around 5 mph becoming calm in the evening.
Monday
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 1pm. High near 89. West southwest wind 5 to 7 mph. Chance of precipitation is 80%.
Monday Night
A 40 percent chance of showers and thunderstorms before 1am. Mostly cloudy, with a low around 71. West southwest wind around 5 mph becoming calm in the evening.
Tuesday
Mostly sunny, with a high near 87. North northwest wind 3 to 6 mph.
Tuesday Night
Mostly clear, with a low around 67. Light north northwest wind.
Wednesday
Mostly sunny, with a high near 89. Light northwest wind.
Wednesday Night
Mostly clear, with a low around 68. Calm wind.
Thursday
Sunny, with a high near 90. Calm wind becoming south southwest around 5 mph in the afternoon.
Thursday Night
Mostly clear, with a low around 71. South wind around 5 mph becoming calm in the evening.
Independence Day
A chance of showers and thunderstorms. Mostly sunny, with a high near 91. South southwest wind 3 to 8 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Colp IL
 37.81°N 89.08°W
Last Update:
6:47 pm CDT Jun 27, 2025
Forecast Valid:
8pm CDT Jun 27, 2025-6pm CDT Jul 4, 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