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

Hazardous Weather Conditions

Current conditions at

Southern Illinois Airport (KMDH)

Lat: 37.78°NLon: 89.25°WElev: 400ft.

Light Rain

62°F

17°C

Humidity 90%
Wind Speed SW 5 mph
Barometer 29.80 in (1008.8 mb)
Dewpoint 59°F (15°C)
Visibility 10.00 mi
Last update 24 Apr 8:52 am CDT
Extended Forecast for

Jonesboro IL

  • Today

    Today: Showers and thunderstorms likely before 1pm, then showers likely and possibly a thunderstorm between 1pm and 5pm, then a chance of showers and thunderstorms after 5pm. Mostly cloudy, with a high near 74. Southwest wind 8 to 11 mph, with gusts as high as 20 mph. Chance of precipitation is 70%.

    High: 74 °F

    Showers
    Likely

  • Tonight

    Tonight: A chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 2am. Mostly cloudy, with a low around 57. Southwest wind around 5 mph becoming calm in the evening. Chance of precipitation is 30%.

    Low: 57 °F

    Chance
    Showers

  • Saturday

    Saturday: Sunny, with a high near 78. North northeast wind 5 to 7 mph.

    High: 78 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 55. East northeast wind around 5 mph.

    Low: 55 °F

    Mostly Clear

  • Sunday

    Sunday: A 20 percent chance of showers after 1pm. Partly sunny, with a high near 78. East wind around 7 mph.

    High: 78 °F

    Mostly Sunny
    then Slight
    Chance
    Showers

  • Sunday Night

    Sunday Night: A slight chance of showers, then a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 61. East southeast wind 6 to 8 mph. Chance of precipitation is 30%.

    Low: 61 °F

    Slight Chance
    Showers then
    Chance
    T-storms

  • Monday

    Monday: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 82. South wind 10 to 17 mph, with gusts as high as 29 mph. Chance of precipitation is 60%.

    High: 82 °F

    Chance
    Showers then
    Showers
    Likely

  • Monday Night

    Monday Night: Showers likely and possibly a thunderstorm before 1am, then a chance of showers. Partly cloudy, with a low around 58. South wind 11 to 16 mph becoming west southwest 5 to 10 mph after midnight. Winds could gust as high as 26 mph.

    Low: 58 °F

    Showers
    Likely

  • Tuesday

    Tuesday: A slight chance of showers and thunderstorms after 1pm. Sunny, with a high near 78. West northwest wind around 6 mph.

    High: 78 °F

    Sunny then
    Slight Chance
    T-storms

Detailed Forecast

Today
Showers and thunderstorms likely before 1pm, then showers likely and possibly a thunderstorm between 1pm and 5pm, then a chance of showers and thunderstorms after 5pm. Mostly cloudy, with a high near 74. Southwest wind 8 to 11 mph, with gusts as high as 20 mph. Chance of precipitation is 70%.
Tonight
A chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 2am. Mostly cloudy, with a low around 57. Southwest wind around 5 mph becoming calm in the evening. Chance of precipitation is 30%.
Saturday
Sunny, with a high near 78. North northeast wind 5 to 7 mph.
Saturday Night
Mostly clear, with a low around 55. East northeast wind around 5 mph.
Sunday
A 20 percent chance of showers after 1pm. Partly sunny, with a high near 78. East wind around 7 mph.
Sunday Night
A slight chance of showers, then a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 61. East southeast wind 6 to 8 mph. Chance of precipitation is 30%.
Monday
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 82. South wind 10 to 17 mph, with gusts as high as 29 mph. Chance of precipitation is 60%.
Monday Night
Showers likely and possibly a thunderstorm before 1am, then a chance of showers. Partly cloudy, with a low around 58. South wind 11 to 16 mph becoming west southwest 5 to 10 mph after midnight. Winds could gust as high as 26 mph.
Tuesday
A slight chance of showers and thunderstorms after 1pm. Sunny, with a high near 78. West northwest wind around 6 mph.
Tuesday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 55. Light north wind.
Wednesday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 74. North wind 5 to 7 mph.
Wednesday Night
A chance of showers. Partly cloudy, with a low around 53. Northeast wind around 6 mph.
Thursday
A chance of showers. Mostly sunny, with a high near 72. Northeast wind 7 to 10 mph, with gusts as high as 18 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Jonesboro IL
 37.46°N 89.27°W
Last Update:
7:01 am CDT Apr 24, 2026
Forecast Valid:
9am CDT Apr 24, 2026-6pm CDT Apr 30, 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