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.

Mostly Cloudy

74°F

23°C

Humidity 80%
Wind Speed E 8 mph
Barometer 30.13 in
Dewpoint 68°F (20°C)
Visibility 10.00 mi
Last update 18 Sep 5:15 pm CDT
Extended Forecast for

Braidwood IL

  • This Afternoon

    This Afternoon: A 20 percent chance of showers. Partly sunny, with a high near 76. East wind around 10 mph, with gusts as high as 15 mph.

    High: 76 °F

    Slight Chance
    Showers

  • Tonight

    Tonight: A 30 percent chance of showers and thunderstorms, mainly after 4am. Mostly cloudy, with a low around 65. East southeast wind around 10 mph, with gusts as high as 15 mph.

    Low: 65 °F

    Partly Cloudy
    then Chance
    T-storms

  • Saturday

    Saturday: Showers and thunderstorms likely before 2pm, then a slight chance of showers and thunderstorms after 3pm. Mostly cloudy, with a high near 82. East wind 5 to 10 mph becoming south in the afternoon. Chance of precipitation is 70%. New rainfall amounts between a half and three quarters of an inch possible.

    High: 82 °F

    T-storms
    Likely then
    Chance
    T-storms

  • Saturday Night

    Saturday Night: Showers and thunderstorms likely, then showers and possibly a thunderstorm after 1am. Low around 67. South southeast wind around 5 mph becoming north northwest after midnight. Chance of precipitation is 80%.

    Low: 67 °F

    T-storms

  • Sunday

    Sunday: Showers and possibly a thunderstorm. High near 72. Northeast wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 80%.

    High: 72 °F

    Showers

  • Sunday Night

    Sunday Night: A chance of showers, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 57. Chance of precipitation is 60%.

    Low: 57 °F

    Showers
    Likely

  • Monday

    Monday: Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 67. Chance of precipitation is 60%.

    High: 67 °F

    Showers
    Likely

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 53.

    Low: 53 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: A chance of showers before 1pm. Partly sunny, with a high near 65.

    High: 65 °F

    Chance
    Showers

Detailed Forecast

This Afternoon
A 20 percent chance of showers. Partly sunny, with a high near 76. East wind around 10 mph, with gusts as high as 15 mph.
Tonight
A 30 percent chance of showers and thunderstorms, mainly after 4am. Mostly cloudy, with a low around 65. East southeast wind around 10 mph, with gusts as high as 15 mph.
Saturday
Showers and thunderstorms likely before 2pm, then a slight chance of showers and thunderstorms after 3pm. Mostly cloudy, with a high near 82. East wind 5 to 10 mph becoming south in the afternoon. Chance of precipitation is 70%. New rainfall amounts between a half and three quarters of an inch possible.
Saturday Night
Showers and thunderstorms likely, then showers and possibly a thunderstorm after 1am. Low around 67. South southeast wind around 5 mph becoming north northwest after midnight. Chance of precipitation is 80%.
Sunday
Showers and possibly a thunderstorm. High near 72. Northeast wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 80%.
Sunday Night
A chance of showers, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 57. Chance of precipitation is 60%.
Monday
Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 67. Chance of precipitation is 60%.
Monday Night
Mostly cloudy, with a low around 53.
Tuesday
A chance of showers before 1pm. Partly sunny, with a high near 65.
Tuesday Night
Mostly cloudy, with a low around 53.
Wednesday
Partly sunny, with a high near 68.
Wednesday Night
Partly cloudy, with a low around 53.
Thursday
Partly sunny, with a high near 70.
Thursday Night
Partly cloudy, with a low around 54.
Friday
Mostly sunny, with a high near 72.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Braidwood IL
 41.27°N 88.22°W
Last Update:
2:51 pm CDT Sep 18, 2026
Forecast Valid:
5pm CDT Sep 18, 2026-6pm CDT Sep 25, 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