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

53°F

12°C

Humidity 92%
Wind Speed S 3 mph
Barometer 29.95 in
Dewpoint 51°F (11°C)
Visibility 10.00 mi
Last update 12 May 1:35 am CDT
Extended Forecast for

4 Miles E Simpson IL

  • Overnight

    Overnight: Mostly clear, with a low around 52. Calm wind.

    Low: 52 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 81. Calm wind becoming southwest 5 to 8 mph in the morning.

    High: 81 °F

    Sunny

  • Sunday Night

    Sunday Night: Increasing clouds, with a low around 60. South southeast wind around 7 mph.

    Low: 60 °F

    Increasing
    Clouds

  • Monday

    Monday: Showers likely, then showers and possibly a thunderstorm after 10am. High near 71. South southeast wind 7 to 14 mph, with gusts as high as 22 mph. Chance of precipitation is 80%.

    High: 71 °F

    Showers

  • Monday Night

    Monday Night: Showers and possibly a thunderstorm. Low around 62. South southeast wind around 11 mph, with gusts as high as 18 mph. Chance of precipitation is 90%.

    Low: 62 °F

    Showers

  • Tuesday

    Tuesday: Showers and possibly a thunderstorm. High near 73. South wind 9 to 14 mph becoming west northwest in the afternoon. Winds could gust as high as 21 mph. Chance of precipitation is 90%.

    High: 73 °F

    Showers

  • Tuesday Night

    Tuesday Night: A 30 percent chance of showers and thunderstorms before 1am. Mostly cloudy, with a low around 57. North northwest wind 11 to 14 mph, with gusts as high as 22 mph.

    Low: 57 °F

    Chance
    T-storms

  • Wednesday

    Wednesday: Mostly sunny, with a high near 76. North northwest wind around 11 mph.

    High: 76 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 56. North northwest wind 6 to 8 mph becoming east southeast after midnight.

    Low: 56 °F

    Mostly Clear

Detailed Forecast

Overnight
Mostly clear, with a low around 52. Calm wind.
Sunday
Sunny, with a high near 81. Calm wind becoming southwest 5 to 8 mph in the morning.
Sunday Night
Increasing clouds, with a low around 60. South southeast wind around 7 mph.
Monday
Showers likely, then showers and possibly a thunderstorm after 10am. High near 71. South southeast wind 7 to 14 mph, with gusts as high as 22 mph. Chance of precipitation is 80%.
Monday Night
Showers and possibly a thunderstorm. Low around 62. South southeast wind around 11 mph, with gusts as high as 18 mph. Chance of precipitation is 90%.
Tuesday
Showers and possibly a thunderstorm. High near 73. South wind 9 to 14 mph becoming west northwest in the afternoon. Winds could gust as high as 21 mph. Chance of precipitation is 90%.
Tuesday Night
A 30 percent chance of showers and thunderstorms before 1am. Mostly cloudy, with a low around 57. North northwest wind 11 to 14 mph, with gusts as high as 22 mph.
Wednesday
Mostly sunny, with a high near 76. North northwest wind around 11 mph.
Wednesday Night
Mostly clear, with a low around 56. North northwest wind 6 to 8 mph becoming east southeast after midnight.
Thursday
A chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 80. South wind 6 to 10 mph.
Thursday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 61. South southeast wind around 9 mph.
Friday
A chance of showers and thunderstorms. Mostly sunny, with a high near 80. East southeast wind 9 to 11 mph becoming west in the afternoon.
Friday Night
A slight chance of showers and thunderstorms. Mostly clear, with a low around 60. West southwest wind around 9 mph.
Saturday
A slight chance of showers and thunderstorms. Sunny, with a high near 83. West wind 7 to 10 mph.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles E Simpson IL
 37.48°N 88.68°W
Last Update:
12:06 am CDT May 12, 2024
Forecast Valid:
1am CDT May 12, 2024-6pm CDT May 18, 2024
 
Forecast Discussion
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation