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

61°F

16°C

Humidity 97%
Wind Speed S 9 mph
Barometer 29.95 in (1013.9 mb)
Dewpoint 60°F (16°C)
Visibility 7.00 mi
Last update 16 Apr 4:52 am CDT
Extended Forecast for

Carbondale IL

  • Overnight

    Overnight: Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 63. West southwest wind around 8 mph. Chance of precipitation is 70%.

    Low: 63 °F

    Showers
    Likely

  • Thursday

    Thursday: Showers likely and possibly a thunderstorm before 4pm, then a chance of showers and thunderstorms, mainly after 5pm. Mostly cloudy, then gradually becoming sunny, with a high near 81. South southwest wind 7 to 10 mph. Chance of precipitation is 60%.

    High: 81 °F

    Showers
    Likely then
    Chance
    T-storms

  • Thursday Night

    Thursday Night: A 10 percent chance of showers and thunderstorms before 7pm. Mostly clear, with a low around 60. South southwest wind 3 to 6 mph.

    Low: 60 °F

    Slight Chance
    T-storms then
    Mostly Clear

  • Friday

    Friday: A 40 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 85. South wind 5 to 14 mph, with gusts as high as 22 mph.

    High: 85 °F

    Mostly Sunny
    then Chance
    T-storms

  • Friday Night

    Friday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 55. South wind 11 to 13 mph, with gusts as high as 22 mph. Chance of precipitation is 70%.

    Low: 55 °F

    Chance
    Showers then
    Showers
    Likely

  • Saturday

    Saturday: Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 68. West southwest wind around 14 mph becoming northwest in the afternoon. Winds could gust as high as 23 mph. Chance of precipitation is 70%.

    High: 68 °F

    Showers
    Likely

  • Saturday Night

    Saturday Night: A 20 percent chance of showers before 1am. Partly cloudy, with a low around 41. North northwest wind 6 to 11 mph, with gusts as high as 18 mph.

    Low: 41 °F

    Slight Chance
    Showers

  • Sunday

    Sunday: Sunny, with a high near 66. West northwest wind 5 to 10 mph, with gusts as high as 18 mph.

    High: 66 °F

    Sunny

  • Sunday Night

    Sunday Night: Clear, with a low around 43. North northwest wind around 6 mph becoming light and variable in the evening.

    Low: 43 °F

    Clear

Detailed Forecast

Overnight
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 63. West southwest wind around 8 mph. Chance of precipitation is 70%.
Thursday
Showers likely and possibly a thunderstorm before 4pm, then a chance of showers and thunderstorms, mainly after 5pm. Mostly cloudy, then gradually becoming sunny, with a high near 81. South southwest wind 7 to 10 mph. Chance of precipitation is 60%.
Thursday Night
A 10 percent chance of showers and thunderstorms before 7pm. Mostly clear, with a low around 60. South southwest wind 3 to 6 mph.
Friday
A 40 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 85. South wind 5 to 14 mph, with gusts as high as 22 mph.
Friday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 55. South wind 11 to 13 mph, with gusts as high as 22 mph. Chance of precipitation is 70%.
Saturday
Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 68. West southwest wind around 14 mph becoming northwest in the afternoon. Winds could gust as high as 23 mph. Chance of precipitation is 70%.
Saturday Night
A 20 percent chance of showers before 1am. Partly cloudy, with a low around 41. North northwest wind 6 to 11 mph, with gusts as high as 18 mph.
Sunday
Sunny, with a high near 66. West northwest wind 5 to 10 mph, with gusts as high as 18 mph.
Sunday Night
Clear, with a low around 43. North northwest wind around 6 mph becoming light and variable in the evening.
Monday
Sunny, with a high near 72. South wind 5 to 9 mph.
Monday Night
Mostly clear, with a low around 51. South wind around 6 mph.
Tuesday
Mostly sunny, with a high near 77. South southwest wind 6 to 13 mph, with gusts as high as 20 mph.
Tuesday Night
A slight chance of showers. Partly cloudy, with a low around 55. South southwest wind around 8 mph.
Wednesday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 79. South southwest wind 6 to 10 mph, with gusts as high as 18 mph.
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ABOUT THIS FORECAST

 
Point Forecast:
Carbondale IL
 37.72°N 89.23°W
Last Update:
3:31 am CDT Apr 16, 2026
Forecast Valid:
5am CDT Apr 16, 2026-6pm CDT Apr 22, 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