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

50°F

10°C

Humidity 58%
Wind Speed SE 6 mph
Barometer 29.97 in
Dewpoint 36°F (2°C)
Visibility 10.00 mi
Wind Chill48°F (9°C)
Last update 7 Jan 7:35 pm CST
Extended Forecast for

Colp IL

  • Tonight

    Tonight: Increasing clouds, with a temperature falling to near 46 by 9pm, then rising to around 50 during the remainder of the night. South southeast wind 3 to 6 mph.

    Low: 46 °F⇑

    Increasing
    Clouds

  • Thursday

    Thursday: A 50 percent chance of showers, mainly after noon. Cloudy, with a high near 67. Breezy, with a south wind 7 to 12 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 30 mph.

    High: 67 °F

    Slight Chance
    Showers then
    Chance
    Showers and
    Breezy

  • Thursday Night

    Thursday Night: Showers and possibly a thunderstorm before 3am, then showers likely. Low around 59. Breezy, with a south wind 17 to 22 mph decreasing to 11 to 16 mph after midnight. Winds could gust as high as 32 mph. Chance of precipitation is 90%.

    Low: 59 °F

    Showers and
    Breezy

  • Friday

    Friday: A 20 percent chance of showers before noon. Partly sunny, with a high near 65. South southwest wind 7 to 10 mph becoming north in the afternoon. Winds could gust as high as 20 mph.

    High: 65 °F

    Slight Chance
    Showers then
    Partly Sunny

  • Friday Night

    Friday Night: A 50 percent chance of showers. Mostly cloudy, with a low around 44. North northeast wind 3 to 7 mph.

    Low: 44 °F

    Chance
    Showers

  • Saturday

    Saturday: A 20 percent chance of showers before noon. Partly sunny, with a high near 48. West northwest wind 8 to 14 mph, with gusts as high as 22 mph.

    High: 48 °F

    Slight Chance
    Showers then
    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 27. West wind around 10 mph, with gusts as high as 20 mph.

    Low: 27 °F

    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 36. Northwest wind 7 to 14 mph, with gusts as high as 21 mph.

    High: 36 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 22. Northwest wind around 5 mph becoming calm in the evening.

    Low: 22 °F

    Mostly Clear

Detailed Forecast

Tonight
Increasing clouds, with a temperature falling to near 46 by 9pm, then rising to around 50 during the remainder of the night. South southeast wind 3 to 6 mph.
Thursday
A 50 percent chance of showers, mainly after noon. Cloudy, with a high near 67. Breezy, with a south wind 7 to 12 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 30 mph.
Thursday Night
Showers and possibly a thunderstorm before 3am, then showers likely. Low around 59. Breezy, with a south wind 17 to 22 mph decreasing to 11 to 16 mph after midnight. Winds could gust as high as 32 mph. Chance of precipitation is 90%.
Friday
A 20 percent chance of showers before noon. Partly sunny, with a high near 65. South southwest wind 7 to 10 mph becoming north in the afternoon. Winds could gust as high as 20 mph.
Friday Night
A 50 percent chance of showers. Mostly cloudy, with a low around 44. North northeast wind 3 to 7 mph.
Saturday
A 20 percent chance of showers before noon. Partly sunny, with a high near 48. West northwest wind 8 to 14 mph, with gusts as high as 22 mph.
Saturday Night
Partly cloudy, with a low around 27. West wind around 10 mph, with gusts as high as 20 mph.
Sunday
Sunny, with a high near 36. Northwest wind 7 to 14 mph, with gusts as high as 21 mph.
Sunday Night
Mostly clear, with a low around 22. Northwest wind around 5 mph becoming calm in the evening.
Monday
Sunny, with a high near 44. Light south southwest wind increasing to 5 to 10 mph in the morning.
Monday Night
Mostly clear, with a low around 31. Southwest wind 6 to 8 mph.
Tuesday
Sunny, with a high near 51. Southwest wind 6 to 10 mph.
Tuesday Night
Mostly cloudy, with a low around 36. South southwest wind around 7 mph.
Wednesday
A slight chance of showers. Mostly cloudy, with a high near 45. West southwest wind 6 to 10 mph becoming northwest in the afternoon.
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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:
7:36 pm CST Jan 7, 2026
Forecast Valid:
7pm CST Jan 7, 2026-6pm CST Jan 14, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation