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.

Fair

78°F

26°C

Humidity 60%
Wind Speed E 3 mph
Barometer 30.01 in
Dewpoint 63°F (17°C)
Visibility 10.00 mi
Heat Index80°F (27°C)
Last update 30 Jul 8:15 pm CDT
Extended Forecast for

Cambria IL

  • Tonight

    Tonight: Mostly cloudy, with a low around 67. Light east southeast wind.

    Low: 67 °F

    Mostly Cloudy

  • Friday

    Friday: A chance of showers, with thunderstorms also possible after 4pm. Partly sunny, with a high near 89. South southeast wind 3 to 8 mph. Chance of precipitation is 40%.

    High: 89 °F

    Mostly Sunny
    then Chance
    T-storms

  • Friday Night

    Friday Night: Showers and thunderstorms likely, then showers and possibly a thunderstorm after 1am. Low around 69. South southeast wind around 8 mph. Chance of precipitation is 80%.

    Low: 69 °F

    Showers

  • Saturday

    Saturday: A chance of showers and thunderstorms before 7am, then a chance of showers between 7am and 4pm, then a chance of showers and thunderstorms after 4pm. Mostly cloudy, with a high near 82. West wind 9 to 11 mph, with gusts as high as 20 mph. Chance of precipitation is 50%.

    High: 82 °F

    Chance
    Showers

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 66. Northwest wind 7 to 10 mph. Chance of precipitation is 30%.

    Low: 66 °F

    Chance
    Showers

  • Sunday

    Sunday: A slight chance of showers, then a chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 82. North wind 9 to 13 mph, with gusts as high as 20 mph. Chance of precipitation is 50%.

    High: 82 °F

    Slight Chance
    Showers then
    Chance
    Showers

  • Sunday Night

    Sunday Night: A 20 percent chance of showers before 1am. Partly cloudy, with a low around 66. North wind 5 to 9 mph becoming calm in the evening.

    Low: 66 °F

    Slight Chance
    Showers

  • Monday

    Monday: A chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 85. Calm wind becoming north northeast 5 to 7 mph in the morning.

    High: 85 °F

    Mostly Sunny
    then Chance
    Showers

  • Monday Night

    Monday Night: Mostly clear, with a low around 66. Northeast wind around 5 mph becoming calm in the evening.

    Low: 66 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly cloudy, with a low around 67. Light east southeast wind.
Friday
A chance of showers, with thunderstorms also possible after 4pm. Partly sunny, with a high near 89. South southeast wind 3 to 8 mph. Chance of precipitation is 40%.
Friday Night
Showers and thunderstorms likely, then showers and possibly a thunderstorm after 1am. Low around 69. South southeast wind around 8 mph. Chance of precipitation is 80%.
Saturday
A chance of showers and thunderstorms before 7am, then a chance of showers between 7am and 4pm, then a chance of showers and thunderstorms after 4pm. Mostly cloudy, with a high near 82. West wind 9 to 11 mph, with gusts as high as 20 mph. Chance of precipitation is 50%.
Saturday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 66. Northwest wind 7 to 10 mph. Chance of precipitation is 30%.
Sunday
A slight chance of showers, then a chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 82. North wind 9 to 13 mph, with gusts as high as 20 mph. Chance of precipitation is 50%.
Sunday Night
A 20 percent chance of showers before 1am. Partly cloudy, with a low around 66. North wind 5 to 9 mph becoming calm in the evening.
Monday
A chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 85. Calm wind becoming north northeast 5 to 7 mph in the morning.
Monday Night
Mostly clear, with a low around 66. Northeast wind around 5 mph becoming calm in the evening.
Tuesday
A slight chance of showers, then a chance of showers and thunderstorms after 1pm. Sunny, with a high near 88. Calm wind becoming north northeast around 5 mph.
Tuesday Night
Mostly clear, with a low around 68. Calm wind.
Wednesday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 91. Light and variable wind.
Wednesday Night
Mostly clear, with a low around 71. Calm wind.
Thursday
Sunny, with a high near 93. Calm wind becoming south around 6 mph in the afternoon.
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ABOUT THIS FORECAST

 
Point Forecast:
Cambria IL
 37.78°N 89.11°W
Last Update:
5:51 pm CDT Jul 30, 2026
Forecast Valid:
8pm CDT Jul 30, 2026-6pm CDT Aug 6, 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