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

57°F

14°C

Humidity 94%
Wind Speed NE 5 mph
Barometer 29.98 in
Dewpoint 55°F (13°C)
Visibility 10.00 mi
Last update 8 Oct 2:35 am CDT
Extended Forecast for

Colp IL

  • Overnight

    Overnight: Clear, with a low around 58. Light north northeast wind.

    Low: 58 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 84. Calm wind becoming east around 5 mph in the morning.

    High: 84 °F

    Sunny

  • Thursday Night

    Thursday Night: Clear, with a low around 55. Calm wind.

    Low: 55 °F

    Clear

  • Friday

    Friday: Sunny, with a high near 87. Calm wind becoming south southeast 5 to 7 mph in the morning.

    High: 87 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 60. Calm wind becoming south southeast around 5 mph after midnight.

    Low: 60 °F

    Mostly Clear

  • Saturday

    Saturday: A 40 percent chance of showers after 1pm. Partly sunny, with a high near 79. Light south southeast wind becoming east southeast 5 to 9 mph in the morning.

    High: 79 °F

    Mostly Sunny
    then Chance
    Showers

  • Saturday Night

    Saturday Night: Showers, with thunderstorms also possible after 1am. Low around 58. East wind 11 to 13 mph. Chance of precipitation is 90%.

    Low: 58 °F

    Showers

  • Sunday

    Sunday: A chance of showers before 1pm. Partly sunny, with a high near 73. East northeast wind 8 to 10 mph becoming northwest in the afternoon.

    High: 73 °F

    Chance
    Showers

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 57. Calm wind.

    Low: 57 °F

    Partly Cloudy

Detailed Forecast

Overnight
Clear, with a low around 58. Light north northeast wind.
Thursday
Sunny, with a high near 84. Calm wind becoming east around 5 mph in the morning.
Thursday Night
Clear, with a low around 55. Calm wind.
Friday
Sunny, with a high near 87. Calm wind becoming south southeast 5 to 7 mph in the morning.
Friday Night
Mostly clear, with a low around 60. Calm wind becoming south southeast around 5 mph after midnight.
Saturday
A 40 percent chance of showers after 1pm. Partly sunny, with a high near 79. Light south southeast wind becoming east southeast 5 to 9 mph in the morning.
Saturday Night
Showers, with thunderstorms also possible after 1am. Low around 58. East wind 11 to 13 mph. Chance of precipitation is 90%.
Sunday
A chance of showers before 1pm. Partly sunny, with a high near 73. East northeast wind 8 to 10 mph becoming northwest in the afternoon.
Sunday Night
Partly cloudy, with a low around 57. Calm wind.
Columbus Day
Sunny, with a high near 84. Calm wind becoming south southwest 5 to 9 mph in the afternoon.
Monday Night
Mostly clear, with a low around 61. South southwest wind 6 to 8 mph.
Tuesday
A slight chance of showers. Sunny, with a high near 78. Northwest wind 8 to 11 mph.
Tuesday Night
A slight chance of showers. Mostly clear, with a low around 53. North northeast wind around 6 mph.
Wednesday
Sunny, with a high near 74. East wind 3 to 6 mph.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Colp IL
 37.81°N 89.11°W
Last Update:
2:05 am CDT Oct 8, 2026
Forecast Valid:
2am CDT Oct 8, 2026-6pm CDT Oct 14, 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