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.

Thunderstorm Heavy Rain Fog/Mist

71°F

22°C

Humidity 94%
Wind Speed NW 15 G 23 mph
Barometer 29.95 in (1013.8 mb)
Dewpoint 69°F (21°C)
Visibility 0.75 mi
Last update 10 Jul 12:52 am CDT
Extended Forecast for

Jonesboro IL

Flood Watch until July 12, 01:00am
Severe T-storm Watch July 10, 01:03am until July 10, 02:00am
Flash Flood Warning until July 10, 06:30am
Click here for hazard details and duration
Flood Watch
...
Flash Flood Warning
  •  
    Flood Watch until July 12, 01:00am
    Severe T-storm Watch July 10, 01:03am until July 10, 02:00am
    Flash Flood Warning until July 10, 06:30am

    NOW: Multiple hazards in effect

    Click HERE for Details

  • Overnight

    Low: 76 °F

    Showers

  • Friday

    Friday: Showers and thunderstorms likely, mainly before 9am. Cloudy, then gradually becoming mostly sunny, with a high near 90. Southwest wind 5 to 7 mph. Chance of precipitation is 60%.

    High: 90 °F

    Showers
    Likely then
    Chance
    T-storms

  • Friday Night

    Friday Night: Showers and thunderstorms likely, mainly before 9pm, then showers likely and possibly a thunderstorm after 4am. Mostly cloudy, with a low around 71. Light and variable wind. Chance of precipitation is 70%.

    Low: 71 °F

    T-storms
    Likely then
    Showers
    Likely

  • Saturday

    Saturday: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 86. Calm wind becoming west southwest around 5 mph in the afternoon. Chance of precipitation is 70%.

    High: 86 °F

    Chance
    T-storms then
    Showers
    Likely

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 69. Light north northwest wind. Chance of precipitation is 40%.

    Low: 69 °F

    Chance
    T-storms then
    Chance
    Showers

  • Sunday

    Sunday: A slight chance of showers, then a chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 86. Calm wind becoming north 5 to 7 mph in the afternoon. Chance of precipitation is 40%.

    High: 86 °F

    Chance
    Showers

  • Sunday Night

    Sunday Night: A 20 percent chance of showers before 1am. Partly cloudy, with a low around 69. North northeast wind around 6 mph becoming calm in the evening.

    Low: 69 °F

    Slight Chance
    Showers

  • Monday

    Monday: A chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 86. North northeast wind 5 to 8 mph.

    High: 86 °F

    Mostly Sunny
    then Chance
    Showers

Detailed Forecast

Overnight
Showers and possibly a thunderstorm. Steady temperature around 76. Southwest wind around 5 mph. Chance of precipitation is 80%.
Friday
Showers and thunderstorms likely, mainly before 9am. Cloudy, then gradually becoming mostly sunny, with a high near 90. Southwest wind 5 to 7 mph. Chance of precipitation is 60%.
Friday Night
Showers and thunderstorms likely, mainly before 9pm, then showers likely and possibly a thunderstorm after 4am. Mostly cloudy, with a low around 71. Light and variable wind. Chance of precipitation is 70%.
Saturday
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 86. Calm wind becoming west southwest around 5 mph in the afternoon. Chance of precipitation is 70%.
Saturday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 69. Light north northwest wind. Chance of precipitation is 40%.
Sunday
A slight chance of showers, then a chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 86. Calm wind becoming north 5 to 7 mph in the afternoon. Chance of precipitation is 40%.
Sunday Night
A 20 percent chance of showers before 1am. Partly cloudy, with a low around 69. North northeast wind around 6 mph becoming calm in the evening.
Monday
A chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 86. North northeast wind 5 to 8 mph.
Monday Night
Mostly clear, with a low around 69. East northeast wind around 5 mph becoming calm in the evening.
Tuesday
Sunny, with a high near 88. Calm wind becoming east around 6 mph in the morning.
Tuesday Night
Mostly clear, with a low around 70. Light and variable wind.
Wednesday
Sunny, with a high near 89. Calm wind becoming south around 5 mph in the afternoon.
Wednesday Night
Mostly clear, with a low around 71. Calm wind.
Thursday
Sunny, with a high near 89. Calm wind becoming southwest around 6 mph in the afternoon.
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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:
11:46 pm CDT Jul 9, 2026
Forecast Valid:
1am CDT Jul 10, 2026-6pm CDT Jul 16, 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