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

60°F

16°C

Humidity 93%
Wind Speed S 13 mph
Barometer 29.63 in (1003.2 mb)
Dewpoint 58°F (14°C)
Visibility 7.00 mi
Last update 19 Feb 2:52 am CST
Extended Forecast for

Carbondale IL

  • Overnight

    Overnight: Mostly cloudy, with a low around 56. South wind around 8 mph.

    Low: 56 °F

    Mostly Cloudy

  • Thursday

    Thursday: A chance of showers and thunderstorms before noon, then showers likely and possibly a thunderstorm between noon and 2pm, then a slight chance of showers and thunderstorms after 2pm. Mostly cloudy, with a high near 70. South southwest wind 8 to 17 mph, with gusts as high as 22 mph. Chance of precipitation is 70%.

    High: 70 °F

    Showers
    Likely

  • Thursday Night

    Thursday Night: A 20 percent chance of showers before 9pm. Mostly clear, with a low around 40. South southwest wind around 11 mph becoming west after midnight. Winds could gust as high as 21 mph.

    Low: 40 °F

    Slight Chance
    Showers then
    Clear

  • Friday

    Friday: Sunny, with a high near 53. West wind 6 to 11 mph becoming light northwest in the afternoon. Winds could gust as high as 20 mph.

    High: 53 °F

    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 33. Calm wind becoming north around 5 mph after midnight.

    Low: 33 °F

    Partly Cloudy

  • Saturday

    Saturday: A 20 percent chance of showers after noon. Mostly sunny, with a high near 48. North wind 5 to 9 mph.

    High: 48 °F

    Mostly Sunny
    then Slight
    Chance
    Showers

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 26. Northwest wind 7 to 10 mph, with gusts as high as 18 mph.

    Low: 26 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 41. Northwest wind 10 to 16 mph, with gusts as high as 26 mph.

    High: 41 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 20. North northwest wind around 11 mph, with gusts as high as 20 mph.

    Low: 20 °F

    Mostly Clear

Detailed Forecast

Overnight
Mostly cloudy, with a low around 56. South wind around 8 mph.
Thursday
A chance of showers and thunderstorms before noon, then showers likely and possibly a thunderstorm between noon and 2pm, then a slight chance of showers and thunderstorms after 2pm. Mostly cloudy, with a high near 70. South southwest wind 8 to 17 mph, with gusts as high as 22 mph. Chance of precipitation is 70%.
Thursday Night
A 20 percent chance of showers before 9pm. Mostly clear, with a low around 40. South southwest wind around 11 mph becoming west after midnight. Winds could gust as high as 21 mph.
Friday
Sunny, with a high near 53. West wind 6 to 11 mph becoming light northwest in the afternoon. Winds could gust as high as 20 mph.
Friday Night
Partly cloudy, with a low around 33. Calm wind becoming north around 5 mph after midnight.
Saturday
A 20 percent chance of showers after noon. Mostly sunny, with a high near 48. North wind 5 to 9 mph.
Saturday Night
Mostly clear, with a low around 26. Northwest wind 7 to 10 mph, with gusts as high as 18 mph.
Sunday
Sunny, with a high near 41. Northwest wind 10 to 16 mph, with gusts as high as 26 mph.
Sunday Night
Mostly clear, with a low around 20. North northwest wind around 11 mph, with gusts as high as 20 mph.
Monday
Sunny, with a high near 37. North northwest wind 6 to 13 mph, with gusts as high as 21 mph.
Monday Night
Mostly clear, with a low around 19. North northwest wind around 5 mph becoming calm in the evening.
Tuesday
Mostly sunny, with a high near 48. Light south southwest wind increasing to 8 to 13 mph in the morning. Winds could gust as high as 21 mph.
Tuesday Night
Mostly cloudy, with a low around 37. South southwest wind 10 to 14 mph, with gusts as high as 24 mph.
Wednesday
A slight chance of showers. Mostly cloudy, with a high near 58. South southwest wind 14 to 17 mph, with gusts as high as 26 mph.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Carbondale IL
 37.72°N 89.23°W
Last Update:
3:12 am CST Feb 19, 2026
Forecast Valid:
3am CST Feb 19, 2026-6pm CST Feb 25, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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