National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Dangerous Heat and Heavy Rainfall into the Weekend

Hot temperatures and high humidity are forecast to continue across the mid-Mississippi Valley into this weekend. Heat Advisories remain in effect. Heavy to excessive rainfall occurring at times through the weekend could bring areas of flooding to parts of the northern Rockies, upper Midwest, central Great Lakes, and southern New England. Read More >

Hazardous Weather Conditions

Current conditions at

Joliet Regional Airport (KJOT)

Lat: 41.52°NLon: 88.18°WElev: 572ft.

Overcast

70°F

21°C

Humidity 72%
Wind Speed NE 9 mph
Barometer 30.27 in
Dewpoint 60°F (16°C)
Visibility 10.00 mi
Last update 18 Sep 10:15 am CDT
Extended Forecast for

Carbon Hill IL

  • Today

    Today: Isolated showers. Mostly cloudy, with a high near 76. East wind around 10 mph, with gusts as high as 15 mph. Chance of precipitation is 20%.

    High: 76 °F

    Isolated
    Showers

  • Tonight

    Tonight: Showers and thunderstorms likely, mainly after 5am. Increasing clouds, with a low around 63. East southeast wind around 10 mph, with gusts as high as 15 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 63 °F

    Partly Cloudy
    then T-storms
    Likely

  • Saturday

    Saturday: Showers and thunderstorms, mainly before noon, then showers likely and possibly a thunderstorm after 5pm. High near 79. East wind 5 to 10 mph becoming south in the afternoon. Winds could gust as high as 15 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.

    High: 79 °F

    T-storms then
    Showers
    Likely

  • Saturday Night

    Saturday Night: Showers and possibly a thunderstorm. Low around 65. South wind around 5 mph becoming north northeast after midnight. Chance of precipitation is 90%.

    Low: 65 °F

    Showers

  • Sunday

    Sunday: Showers and possibly a thunderstorm. High near 73. Northeast wind 5 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 80%.

    High: 73 °F

    Showers

  • Sunday Night

    Sunday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 56. Chance of precipitation is 60%.

    Low: 56 °F

    Chance
    T-storms then
    Showers
    Likely

  • Monday

    Monday: Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 66. Chance of precipitation is 60%.

    High: 66 °F

    Showers
    Likely

  • Monday Night

    Monday Night: A chance of showers. Mostly cloudy, with a low around 53.

    Low: 53 °F

    Chance
    Showers

  • Tuesday

    Tuesday: Partly sunny, with a high near 65.

    High: 65 °F

    Partly Sunny

Detailed Forecast

Today
Isolated showers. Mostly cloudy, with a high near 76. East wind around 10 mph, with gusts as high as 15 mph. Chance of precipitation is 20%.
Tonight
Showers and thunderstorms likely, mainly after 5am. Increasing clouds, with a low around 63. East southeast wind around 10 mph, with gusts as high as 15 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
Saturday
Showers and thunderstorms, mainly before noon, then showers likely and possibly a thunderstorm after 5pm. High near 79. East wind 5 to 10 mph becoming south in the afternoon. Winds could gust as high as 15 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.
Saturday Night
Showers and possibly a thunderstorm. Low around 65. South wind around 5 mph becoming north northeast after midnight. Chance of precipitation is 90%.
Sunday
Showers and possibly a thunderstorm. High near 73. Northeast wind 5 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 80%.
Sunday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 56. Chance of precipitation is 60%.
Monday
Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 66. Chance of precipitation is 60%.
Monday Night
A chance of showers. Mostly cloudy, with a low around 53.
Tuesday
Partly sunny, with a high near 65.
Tuesday Night
Mostly cloudy, with a low around 52.
Wednesday
Mostly sunny, with a high near 68.
Wednesday Night
Mostly cloudy, with a low around 52.
Thursday
Partly sunny, with a high near 71.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Carbon Hill IL
 41.29°N 88.3°W
Last Update:
9:21 am CDT Sep 18, 2026
Forecast Valid:
10am CDT Sep 18, 2026-6pm CDT Sep 24, 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