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

Areas of Dangerous Heat and Heavy Rain with Possible Flooding into this Weekend

Hot temperatures and high humidity are forecast to continue across much of northeast Texas into the mid-Mississippi Valley into this weekend with heat advisories in effect. Heavy to excessive rainfall occurring at times through Saturday could bring areas of flooding across parts of the central Plains into the upper Midwest/Great Lakes, and Four Corners states. Read More >

Hazardous Weather Conditions

Current conditions at

Joliet Regional Airport (KJOT)

Lat: 41.52°NLon: 88.18°WElev: 572ft.

Fog/Mist

69°F

21°C

Humidity 100%
Wind Speed Calm
Barometer 30.20 in
Dewpoint 69°F (21°C)
Visibility 2.00 mi
Last update 17 Sep 5:35 am CDT
Extended Forecast for

Gardner IL

  • Overnight

    Overnight: A 40 percent chance of showers and thunderstorms. Patchy fog. Otherwise, cloudy, with a low around 68. Calm wind.

    Low: 68 °F

    Chance
    T-storms and
    Patchy Fog

  • Thursday

    Thursday: Showers and thunderstorms likely before 11am, then a slight chance of showers between 11am and noon. Patchy fog before 10am. Otherwise, cloudy, then gradually becoming mostly sunny, with a high near 83. Calm wind becoming west around 5 mph. Chance of precipitation is 60%. New precipitation amounts between a quarter and half of an inch possible.

    High: 83 °F

    Showers
    Likely and
    Patchy Fog
    then Partly
    Sunny

  • Thursday Night

    Thursday Night: A 20 percent chance of showers after 4am. Mostly cloudy, with a low around 66. Northeast wind around 5 mph, with gusts as high as 10 mph.

    Low: 66 °F

    Mostly Cloudy
    then Slight
    Chance
    Showers

  • Friday

    Friday: A 10 percent chance of showers before 7am. Mostly cloudy, with a high near 79. East wind around 5 mph, with gusts as high as 15 mph.

    High: 79 °F

    Slight Chance
    Showers then
    Mostly Cloudy

  • Friday Night

    Friday Night: A 50 percent chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 65. East wind around 10 mph, with gusts as high as 15 mph.

    Low: 65 °F

    Mostly Cloudy
    then Chance
    Showers

  • Saturday

    Saturday: A chance of showers, with thunderstorms also possible after 4pm. Mostly cloudy, with a high near 88. Chance of precipitation is 50%.

    High: 88 °F

    Chance
    Showers

  • Saturday Night

    Saturday Night: Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 67. Chance of precipitation is 70%.

    Low: 67 °F

    Showers
    Likely

  • Sunday

    Sunday: Showers likely and possibly a thunderstorm before 1pm, then a chance of showers. Mostly cloudy, with a high near 76.

    High: 76 °F

    Showers
    Likely

  • Sunday Night

    Sunday Night: A chance of showers, with thunderstorms also possible after 1am. Mostly cloudy, with a low around 59.

    Low: 59 °F

    Chance
    Showers then
    Chance
    T-storms

Detailed Forecast

Overnight
A 40 percent chance of showers and thunderstorms. Patchy fog. Otherwise, cloudy, with a low around 68. Calm wind.
Thursday
Showers and thunderstorms likely before 11am, then a slight chance of showers between 11am and noon. Patchy fog before 10am. Otherwise, cloudy, then gradually becoming mostly sunny, with a high near 83. Calm wind becoming west around 5 mph. Chance of precipitation is 60%. New precipitation amounts between a quarter and half of an inch possible.
Thursday Night
A 20 percent chance of showers after 4am. Mostly cloudy, with a low around 66. Northeast wind around 5 mph, with gusts as high as 10 mph.
Friday
A 10 percent chance of showers before 7am. Mostly cloudy, with a high near 79. East wind around 5 mph, with gusts as high as 15 mph.
Friday Night
A 50 percent chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 65. East wind around 10 mph, with gusts as high as 15 mph.
Saturday
A chance of showers, with thunderstorms also possible after 4pm. Mostly cloudy, with a high near 88. Chance of precipitation is 50%.
Saturday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 67. Chance of precipitation is 70%.
Sunday
Showers likely and possibly a thunderstorm before 1pm, then a chance of showers. Mostly cloudy, with a high near 76.
Sunday Night
A chance of showers, with thunderstorms also possible after 1am. Mostly cloudy, with a low around 59.
Monday
Showers likely, mainly before 1pm. Mostly cloudy, with a high near 70.
Monday Night
Mostly cloudy, with a low around 56.
Tuesday
Partly sunny, with a high near 72.
Tuesday Night
Partly cloudy, with a low around 56.
Wednesday
Mostly sunny, with a high near 75.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Gardner IL
 41.18°N 88.31°W
Last Update:
4:37 am CDT Sep 17, 2026
Forecast Valid:
5am CDT Sep 17, 2026-6pm CDT Sep 23, 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