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Hazardous Weather Conditions

Current conditions at

Marion - Williamson County Regional Airport (KMWA)

Lat: 37.77°NLon: 89.01°WElev: 486ft.

Mostly Cloudy

63°F

17°C

Humidity 96%
Wind Speed NW 5 mph
Barometer 29.99 in
Dewpoint 62°F (17°C)
Visibility 10.00 mi
Last update 5 May 3:15 am CDT
Extended Forecast for

Harrisburg IL

  • Overnight

    Overnight: Mostly cloudy, with a low around 60. West northwest wind 3 to 5 mph.

    Low: 60 °F

    Mostly Cloudy

  • Sunday

    Sunday: A 40 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 78. North northwest wind around 6 mph.

    High: 78 °F

    Mostly Cloudy
    then Chance
    T-storms

  • Sunday Night

    Sunday Night: Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 62. North wind 5 to 7 mph becoming east after midnight. Chance of precipitation is 70%.

    Low: 62 °F

    Showers
    Likely

  • Monday

    Monday: Showers and possibly a thunderstorm. High near 78. East southeast wind 6 to 9 mph becoming south southwest in the afternoon. Chance of precipitation is 80%.

    High: 78 °F

    Showers

  • Monday Night

    Monday Night: A 30 percent chance of showers and thunderstorms, mainly after 1am. Partly cloudy, with a low around 66. South wind 6 to 9 mph.

    Low: 66 °F

    Chance
    T-storms

  • Tuesday

    Tuesday: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 82. Breezy, with a south southwest wind 14 to 22 mph, with gusts as high as 32 mph. Chance of precipitation is 60%.

    High: 82 °F

    Breezy.
    Chance
    T-storms then
    Showers
    Likely

  • Tuesday Night

    Tuesday Night: Showers and thunderstorms likely before 1am, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 66. Breezy, with a south southwest wind 14 to 22 mph, with gusts as high as 33 mph. Chance of precipitation is 60%.

    Low: 66 °F

    T-storms
    Likely and
    Breezy

  • Wednesday

    Wednesday: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 83. Breezy, with a south wind 13 to 20 mph, with gusts as high as 29 mph.

    High: 83 °F

    Chance
    T-storms then
    Showers
    Likely and
    Breezy

  • Wednesday Night

    Wednesday Night: Showers and possibly a thunderstorm. Mostly cloudy, with a low around 63. Southwest wind 16 to 18 mph, with gusts as high as 28 mph.

    Low: 63 °F

    T-storms

Detailed Forecast

Overnight
Mostly cloudy, with a low around 60. West northwest wind 3 to 5 mph.
Sunday
A 40 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 78. North northwest wind around 6 mph.
Sunday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 62. North wind 5 to 7 mph becoming east after midnight. Chance of precipitation is 70%.
Monday
Showers and possibly a thunderstorm. High near 78. East southeast wind 6 to 9 mph becoming south southwest in the afternoon. Chance of precipitation is 80%.
Monday Night
A 30 percent chance of showers and thunderstorms, mainly after 1am. Partly cloudy, with a low around 66. South wind 6 to 9 mph.
Tuesday
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 82. Breezy, with a south southwest wind 14 to 22 mph, with gusts as high as 32 mph. Chance of precipitation is 60%.
Tuesday Night
Showers and thunderstorms likely before 1am, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 66. Breezy, with a south southwest wind 14 to 22 mph, with gusts as high as 33 mph. Chance of precipitation is 60%.
Wednesday
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 83. Breezy, with a south wind 13 to 20 mph, with gusts as high as 29 mph.
Wednesday Night
Showers and possibly a thunderstorm. Mostly cloudy, with a low around 63. Southwest wind 16 to 18 mph, with gusts as high as 28 mph.
Thursday
A chance of showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 80. West wind 13 to 15 mph, with gusts as high as 24 mph.
Thursday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 55. Northwest wind 8 to 11 mph.
Friday
A slight chance of showers. Sunny, with a high near 71. Northwest wind 9 to 17 mph, with gusts as high as 26 mph.
Friday Night
Mostly clear, with a low around 49. West northwest wind 10 to 15 mph, with gusts as high as 22 mph.
Saturday
Sunny, with a high near 70. West northwest wind 9 to 15 mph, with gusts as high as 24 mph.
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Map Legend

ABOUT THIS FORECAST

 
Point Forecast:
Harrisburg IL
 37.74°N 88.55°W
Last Update:
1:38 am CDT May 5, 2024
Forecast Valid:
3am CDT May 5, 2024-6pm CDT May 11, 2024
 
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