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

Heavy Rainfall and Flash Flood Threats Shift From Southern Plains to Lower Mississippi Valley; Elevated to Critical Fire Concerns Out West

Heavy to excessive rainfall with flash flood concerns will shift from the southern Plains into the Lower Mississippi Valley. Elevated to Critical Fire weather threats will linger through the weekend across the Great Basin and central Rockies. Finally, Major to Record river flooding will continue in portions of the Midwest and across parts of North and South Carolina this weekend. Read More >

Current conditions at

Marion - Williamson County Regional Airport (KMWA)

Lat: 37.77°NLon: 89.01°WElev: 486ft.

Rain

59°F

15°C

Humidity 94%
Wind Speed N 7 mph
Barometer 30.22 in
Dewpoint 57°F (14°C)
Visibility 10.00 mi
Last update 22 Sep 9:45 am CDT
Extended Forecast for

Marion IL

  • Today

    Today: Showers, mainly before 3pm. High near 67. Northeast wind around 7 mph. Chance of precipitation is 100%.

    Showers

    High: 67 °F

  • Tonight

    Tonight: A 30 percent chance of showers, mainly before 7pm. Cloudy, with a low around 57. Northeast wind 3 to 5 mph.

    Chance
    Showers

    Low: 57 °F

  • Sunday

    Sunday: A 30 percent chance of showers, mainly before 1pm. Mostly cloudy, with a high near 73. East northeast wind 6 to 8 mph.

    Chance
    Showers

    High: 73 °F

  • Sunday
    Night

    Sunday Night: A 50 percent chance of showers. Cloudy, with a low around 64. East wind 3 to 5 mph.

    Chance
    Showers

    Low: 64 °F

  • Monday

    Monday: A chance of showers, then showers likely and possibly a thunderstorm after 1pm. Cloudy, with a high near 78. South wind 6 to 9 mph. Chance of precipitation is 60%.

    Showers
    Likely

    High: 78 °F

  • Monday
    Night

    Monday Night: A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 68. South wind 6 to 8 mph.

    Chance
    T-storms

    Low: 68 °F

  • Tuesday

    Tuesday: Showers likely and possibly a thunderstorm before 1pm, then a chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 78. South southwest wind around 8 mph. Chance of precipitation is 60%.

    Showers
    Likely

    High: 78 °F

  • Tuesday
    Night

    Tuesday Night: Showers likely and possibly a thunderstorm before 1am, then a chance of showers. Mostly cloudy, with a low around 63. South southwest wind 5 to 7 mph becoming northwest after midnight.

    Showers
    Likely

    Low: 63 °F

  • Wednesday

    Wednesday: A slight chance of showers. Partly sunny, with a high near 74. North wind 6 to 9 mph.

    Slight Chance
    Showers

    High: 74 °F

Detailed Forecast

Today
Showers, mainly before 3pm. High near 67. Northeast wind around 7 mph. Chance of precipitation is 100%.
Tonight
A 30 percent chance of showers, mainly before 7pm. Cloudy, with a low around 57. Northeast wind 3 to 5 mph.
Sunday
A 30 percent chance of showers, mainly before 1pm. Mostly cloudy, with a high near 73. East northeast wind 6 to 8 mph.
Sunday Night
A 50 percent chance of showers. Cloudy, with a low around 64. East wind 3 to 5 mph.
Monday
A chance of showers, then showers likely and possibly a thunderstorm after 1pm. Cloudy, with a high near 78. South wind 6 to 9 mph. Chance of precipitation is 60%.
Monday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 68. South wind 6 to 8 mph.
Tuesday
Showers likely and possibly a thunderstorm before 1pm, then a chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 78. South southwest wind around 8 mph. Chance of precipitation is 60%.
Tuesday Night
Showers likely and possibly a thunderstorm before 1am, then a chance of showers. Mostly cloudy, with a low around 63. South southwest wind 5 to 7 mph becoming northwest after midnight.
Wednesday
A slight chance of showers. Partly sunny, with a high near 74. North wind 6 to 9 mph.
Wednesday Night
Mostly cloudy, with a low around 56. North wind 3 to 7 mph.
Thursday
A slight chance of showers. Partly sunny, with a high near 74. Light and variable wind becoming south around 5 mph in the afternoon.
Thursday Night
Mostly cloudy, with a low around 55. West wind 3 to 5 mph.
Friday
Mostly sunny, with a high near 74. North wind around 6 mph.
Click Map For Forecast
Disclaimer
Map Legend
Point Forecast:
Marion IL
 37.73°N 88.92°W
Last Update:
9:28 am CDT Sep 22, 2018
Forecast Valid:
10am CDT Sep 22, 2018-6pm CDT Sep 28, 2018
 
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