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.

Fog/Mist

41°F

5°C

Humidity 93%
Wind Speed NE 3 mph
Barometer 30.17 in (1021.8 mb)
Dewpoint 39°F (4°C)
Visibility 3.00 mi
Last update 2 Mar 11:52 pm CST
Extended Forecast for

Jonesboro IL

  • Overnight

    Overnight: A chance of showers and thunderstorms before 3am, then showers likely and possibly a thunderstorm between 3am and 4am, then a chance of showers and thunderstorms after 4am. Mostly cloudy, with a low around 41. Light and variable wind. Chance of precipitation is 60%.

    Low: 41 °F

    Showers
    Likely

  • Tuesday

    Tuesday: A 40 percent chance of showers after 3pm. Partly sunny, with a high near 72. East southeast wind 5 to 11 mph becoming southwest in the afternoon. Winds could gust as high as 21 mph.

    High: 72 °F

    Chance
    Showers

  • Tuesday Night

    Tuesday Night: A chance of showers before 3am, then a chance of showers and thunderstorms between 3am and 5am, then showers likely and possibly a thunderstorm after 5am. Mostly cloudy, with a low around 57. South wind around 6 mph. Chance of precipitation is 60%.

    Low: 57 °F

    Chance
    Showers then
    Showers
    Likely

  • Wednesday

    Wednesday: Showers and possibly a thunderstorm. High near 71. South southwest wind 6 to 10 mph. Chance of precipitation is 80%.

    High: 71 °F

    Showers

  • Wednesday Night

    Wednesday Night: Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 58. South wind 6 to 9 mph. Chance of precipitation is 70%.

    Low: 58 °F

    Showers
    Likely

  • Thursday

    Thursday: Showers and possibly a thunderstorm before 9am, then showers between 9am and noon, then a chance of showers and thunderstorms after noon. High near 71. Southwest wind 7 to 11 mph, with gusts as high as 21 mph. Chance of precipitation is 80%.

    High: 71 °F

    Showers then
    Chance
    Showers

  • Thursday Night

    Thursday Night: A chance of showers, with thunderstorms also possible after midnight. Mostly cloudy, with a low around 58. South wind around 6 mph. Chance of precipitation is 30%.

    Low: 58 °F

    Chance
    Showers then
    Chance
    T-storms

  • Friday

    Friday: A slight chance of showers and thunderstorms before noon. Partly sunny, with a high near 78. South wind 7 to 15 mph, with gusts as high as 24 mph.

    High: 78 °F

    Slight Chance
    T-storms then
    Partly Sunny

  • Friday Night

    Friday Night: A slight chance of showers, then showers likely and possibly a thunderstorm after midnight. Mostly cloudy, with a low around 61. South wind around 10 mph, with gusts as high as 20 mph.

    Low: 61 °F

    Showers
    Likely

Detailed Forecast

Overnight
A chance of showers and thunderstorms before 3am, then showers likely and possibly a thunderstorm between 3am and 4am, then a chance of showers and thunderstorms after 4am. Mostly cloudy, with a low around 41. Light and variable wind. Chance of precipitation is 60%.
Tuesday
A 40 percent chance of showers after 3pm. Partly sunny, with a high near 72. East southeast wind 5 to 11 mph becoming southwest in the afternoon. Winds could gust as high as 21 mph.
Tuesday Night
A chance of showers before 3am, then a chance of showers and thunderstorms between 3am and 5am, then showers likely and possibly a thunderstorm after 5am. Mostly cloudy, with a low around 57. South wind around 6 mph. Chance of precipitation is 60%.
Wednesday
Showers and possibly a thunderstorm. High near 71. South southwest wind 6 to 10 mph. Chance of precipitation is 80%.
Wednesday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 58. South wind 6 to 9 mph. Chance of precipitation is 70%.
Thursday
Showers and possibly a thunderstorm before 9am, then showers between 9am and noon, then a chance of showers and thunderstorms after noon. High near 71. Southwest wind 7 to 11 mph, with gusts as high as 21 mph. Chance of precipitation is 80%.
Thursday Night
A chance of showers, with thunderstorms also possible after midnight. Mostly cloudy, with a low around 58. South wind around 6 mph. Chance of precipitation is 30%.
Friday
A slight chance of showers and thunderstorms before noon. Partly sunny, with a high near 78. South wind 7 to 15 mph, with gusts as high as 24 mph.
Friday Night
A slight chance of showers, then showers likely and possibly a thunderstorm after midnight. Mostly cloudy, with a low around 61. South wind around 10 mph, with gusts as high as 20 mph.
Saturday
Showers and possibly a thunderstorm before noon, then a chance of showers and thunderstorms after noon. Cloudy, with a high near 70. Southwest wind 7 to 10 mph, with gusts as high as 20 mph.
Saturday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 49. West wind around 6 mph becoming calm in the evening.
Sunday
A slight chance of showers. Mostly cloudy, with a high near 66. Calm wind becoming south southwest 5 to 7 mph in the morning.
Sunday Night
A slight chance of showers. Mostly cloudy, with a low around 52. South southwest wind around 6 mph.
Monday
A chance of showers. Mostly sunny, with a high near 73. Southwest wind 6 to 9 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:
12:26 am CST Mar 3, 2026
Forecast Valid:
12am CST Mar 3, 2026-6pm CDT Mar 9, 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