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.

Overcast

79°F

26°C

Humidity 79%
Wind Speed NW 5 mph
Barometer 29.99 in (1015.1 mb)
Dewpoint 72°F (22°C)
Visibility 10.00 mi
Heat Index82°F (28°C)
Last update 14 Oct 1:52 pm CDT
Extended Forecast for

Jonesboro IL

  • This Afternoon

    This Afternoon: Showers likely and possibly a thunderstorm before 3pm, then a chance of showers and thunderstorms after 3pm. Mostly cloudy, with a high near 82. Northwest wind 3 to 5 mph. Chance of precipitation is 60%.

    High: 82 °F

    Showers
    Likely

  • Tonight

    Tonight: A chance of showers and thunderstorms before midnight, then a chance of showers between midnight and 1am, then a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 67. Calm wind. Chance of precipitation is 40%.

    Low: 67 °F

    Chance
    T-storms

  • Thursday

    Thursday: A chance of showers and thunderstorms before 10am, then a slight chance of showers between 10am and noon. Cloudy through mid morning, then gradual clearing, with a high near 88. Light and variable wind becoming south southwest 6 to 11 mph in the morning. Winds could gust as high as 18 mph. Chance of precipitation is 30%.

    High: 88 °F

    Chance
    Showers then
    Sunny

  • Thursday Night

    Thursday Night: A 20 percent chance of showers after 3am. Increasing clouds, with a low around 54. South southwest wind 6 to 14 mph becoming northwest after midnight. Winds could gust as high as 21 mph.

    Low: 54 °F

    Mostly Clear
    then Slight
    Chance
    Showers

  • Friday

    Friday: Partly sunny, with a high near 60. Breezy, with a north northwest wind 16 to 20 mph, with gusts as high as 26 mph.

    High: 60 °F

    Mostly Cloudy
    then Partly
    Sunny and
    Breezy

  • Friday Night

    Friday Night: Partly cloudy, with a low around 44. North wind 10 to 16 mph, with gusts as high as 24 mph.

    Low: 44 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 62. North northeast wind 7 to 11 mph.

    High: 62 °F

    Sunny

  • Saturday Night

    Saturday Night: Clear, with a low around 38. Light east wind.

    Low: 38 °F

    Clear

  • Sunday

    Sunday: Sunny, with a high near 67. Calm wind becoming southeast around 5 mph in the morning.

    High: 67 °F

    Sunny

Detailed Forecast

This Afternoon
Showers likely and possibly a thunderstorm before 3pm, then a chance of showers and thunderstorms after 3pm. Mostly cloudy, with a high near 82. Northwest wind 3 to 5 mph. Chance of precipitation is 60%.
Tonight
A chance of showers and thunderstorms before midnight, then a chance of showers between midnight and 1am, then a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 67. Calm wind. Chance of precipitation is 40%.
Thursday
A chance of showers and thunderstorms before 10am, then a slight chance of showers between 10am and noon. Cloudy through mid morning, then gradual clearing, with a high near 88. Light and variable wind becoming south southwest 6 to 11 mph in the morning. Winds could gust as high as 18 mph. Chance of precipitation is 30%.
Thursday Night
A 20 percent chance of showers after 3am. Increasing clouds, with a low around 54. South southwest wind 6 to 14 mph becoming northwest after midnight. Winds could gust as high as 21 mph.
Friday
Partly sunny, with a high near 60. Breezy, with a north northwest wind 16 to 20 mph, with gusts as high as 26 mph.
Friday Night
Partly cloudy, with a low around 44. North wind 10 to 16 mph, with gusts as high as 24 mph.
Saturday
Sunny, with a high near 62. North northeast wind 7 to 11 mph.
Saturday Night
Clear, with a low around 38. Light east wind.
Sunday
Sunny, with a high near 67. Calm wind becoming southeast around 5 mph in the morning.
Sunday Night
Mostly clear, with a low around 43. Calm wind.
Monday
Mostly sunny, with a high near 71. Calm wind becoming south around 5 mph in the afternoon.
Monday Night
Partly cloudy, with a low around 47. Calm wind.
Tuesday
Mostly sunny, with a high near 75. Calm wind becoming southeast around 5 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:
1:26 pm CDT Oct 14, 2026
Forecast Valid:
2pm CDT Oct 14, 2026-6pm CDT Oct 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