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

Southern Illinois Airport (KMDH)

Lat: 37.78°NLon: 89.25°WElev: 400ft.

Mostly Cloudy

71°F

22°C

Humidity 76%
Wind Speed SW 10 mph
Barometer 29.98 in (1014.9 mb)
Dewpoint 63°F (17°C)
Visibility 10.00 mi
Last update 14 Apr 3:52 am CDT
Extended Forecast for

3 Miles WNW Mulkeytown IL

  • Today

    Today: Mostly sunny, with a high near 87. South southwest wind 13 to 18 mph, with gusts as high as 26 mph.

    High: 87 °F

    Mostly Sunny

  • Tonight

    Tonight: A slight chance of showers before 2am, then a slight chance of showers after 3am. Increasing clouds, with a low around 68. South southwest wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 20%.

    Low: 68 °F

    Mostly Clear
    then Slight
    Chance
    Showers

  • Wednesday

    Wednesday: A slight chance of showers, then a chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 84. South southwest wind 11 to 17 mph, with gusts as high as 25 mph. Chance of precipitation is 30%.

    High: 84 °F

    Chance
    Showers

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 65. South southwest wind 9 to 13 mph, with gusts as high as 22 mph. Chance of precipitation is 70%.

    Low: 65 °F

    Chance
    T-storms then
    Showers
    Likely

  • Thursday

    Thursday: Showers and possibly a thunderstorm. High near 80. South southwest wind 9 to 14 mph, with gusts as high as 20 mph. Chance of precipitation is 80%.

    High: 80 °F

    Showers

  • Thursday Night

    Thursday Night: A 20 percent chance of showers before 1am. Mostly clear, with a low around 59. South wind 3 to 8 mph.

    Low: 59 °F

    Slight Chance
    Showers

  • Friday

    Friday: A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 86. South wind 5 to 13 mph, with gusts as high as 20 mph.

    High: 86 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Friday Night

    Friday Night: A chance of showers and thunderstorms, mainly after 1am. Mostly cloudy, with a low around 62. South wind around 11 mph, with gusts as high as 21 mph.

    Low: 62 °F

    Chance
    T-storms

  • Saturday

    Saturday: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 76. South southwest wind 13 to 17 mph becoming west in the afternoon. Winds could gust as high as 24 mph.

    High: 76 °F

    Showers
    Likely

Detailed Forecast

Today
Mostly sunny, with a high near 87. South southwest wind 13 to 18 mph, with gusts as high as 26 mph.
Tonight
A slight chance of showers before 2am, then a slight chance of showers after 3am. Increasing clouds, with a low around 68. South southwest wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 20%.
Wednesday
A slight chance of showers, then a chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 84. South southwest wind 11 to 17 mph, with gusts as high as 25 mph. Chance of precipitation is 30%.
Wednesday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 65. South southwest wind 9 to 13 mph, with gusts as high as 22 mph. Chance of precipitation is 70%.
Thursday
Showers and possibly a thunderstorm. High near 80. South southwest wind 9 to 14 mph, with gusts as high as 20 mph. Chance of precipitation is 80%.
Thursday Night
A 20 percent chance of showers before 1am. Mostly clear, with a low around 59. South wind 3 to 8 mph.
Friday
A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 86. South wind 5 to 13 mph, with gusts as high as 20 mph.
Friday Night
A chance of showers and thunderstorms, mainly after 1am. Mostly cloudy, with a low around 62. South wind around 11 mph, with gusts as high as 21 mph.
Saturday
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 76. South southwest wind 13 to 17 mph becoming west in the afternoon. Winds could gust as high as 24 mph.
Saturday Night
A chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 42. West northwest wind 7 to 11 mph, with gusts as high as 20 mph.
Sunday
Sunny, with a high near 67. West northwest wind 7 to 11 mph, with gusts as high as 18 mph.
Sunday Night
Mostly clear, with a low around 41. Northwest wind 5 to 9 mph becoming light and variable in the evening.
Monday
Sunny, with a high near 70. Light east southeast wind becoming southeast 5 to 9 mph in the morning.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles WNW Mulkeytown IL
 37.97°N 89.19°W
Last Update:
1:26 am CDT Apr 14, 2026
Forecast Valid:
4am CDT Apr 14, 2026-6pm CDT Apr 20, 2026
 
Forecast Discussion
 
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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