National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Marion - Williamson County Regional Airport (KMWA)

Lat: 37.77°NLon: 89.01°WElev: 486ft.

Mostly Cloudy

78°F

26°C

Humidity 82%
Wind Speed SE 8 mph
Barometer 30.00 in
Dewpoint 72°F (22°C)
Visibility 10.00 mi
Heat Index80°F (27°C)
Last update 12 Aug 2:35 am CDT
Extended Forecast for

Christopher IL

  • Overnight

    Overnight: Mostly cloudy, with a low around 73. South wind 3 to 5 mph.

    Low: 73 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: A 20 percent chance of showers and thunderstorms after 4pm. Mostly sunny, with a high near 95. Calm wind becoming south southwest around 6 mph in the morning.

    High: 95 °F

    Partly Sunny
    then Slight
    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A 30 percent chance of showers and thunderstorms, mainly between 7pm and 1am. Partly cloudy, with a low around 71. South wind around 5 mph becoming calm in the evening.

    Low: 71 °F

    Chance
    T-storms then
    Chance
    Showers

  • Wednesday

    Wednesday: A slight chance of showers, then a chance of showers and thunderstorms after 10am. Mostly sunny, with a high near 92. Calm wind becoming west northwest around 6 mph in the afternoon. Chance of precipitation is 30%.

    High: 92 °F

    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A slight chance of showers and thunderstorms. Partly cloudy, with a low around 70. North northwest wind around 5 mph becoming calm in the evening. Chance of precipitation is 20%.

    Low: 70 °F

    Slight Chance
    T-storms

  • Thursday

    Thursday: Mostly sunny, with a high near 93. Light and variable wind.

    High: 93 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 72. Light south southeast wind.

    Low: 72 °F

    Partly Cloudy

  • Friday

    Friday: Sunny and hot, with a high near 97. Calm wind becoming south around 6 mph in the afternoon.

    High: 97 °F

    Hot

  • Friday Night

    Friday Night: Mostly clear, with a low around 74. South wind around 5 mph becoming calm in the evening.

    Low: 74 °F

    Mostly Clear

Detailed Forecast

Overnight
Mostly cloudy, with a low around 73. South wind 3 to 5 mph.
Tuesday
A 20 percent chance of showers and thunderstorms after 4pm. Mostly sunny, with a high near 95. Calm wind becoming south southwest around 6 mph in the morning.
Tuesday Night
A 30 percent chance of showers and thunderstorms, mainly between 7pm and 1am. Partly cloudy, with a low around 71. South wind around 5 mph becoming calm in the evening.
Wednesday
A slight chance of showers, then a chance of showers and thunderstorms after 10am. Mostly sunny, with a high near 92. Calm wind becoming west northwest around 6 mph in the afternoon. Chance of precipitation is 30%.
Wednesday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 70. North northwest wind around 5 mph becoming calm in the evening. Chance of precipitation is 20%.
Thursday
Mostly sunny, with a high near 93. Light and variable wind.
Thursday Night
Partly cloudy, with a low around 72. Light south southeast wind.
Friday
Sunny and hot, with a high near 97. Calm wind becoming south around 6 mph in the afternoon.
Friday Night
Mostly clear, with a low around 74. South wind around 5 mph becoming calm in the evening.
Saturday
Sunny and hot, with a high near 98. Calm wind becoming south southwest around 6 mph in the morning.
Saturday Night
Mostly clear, with a low around 74. Southeast wind around 5 mph becoming calm in the evening.
Sunday
Sunny and hot, with a high near 98. Calm wind becoming south southwest around 6 mph in the afternoon.
Sunday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 74. South wind around 5 mph becoming calm in the evening.
Monday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 96. Calm wind becoming southwest 5 to 7 mph in the morning.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Christopher IL
 37.96°N 89.05°W
Last Update:
1:02 am CDT Aug 12, 2025
Forecast Valid:
2am CDT Aug 12, 2025-6pm CDT Aug 18, 2025
 
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Additional Resources

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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