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

Hazardous Weather Conditions

Current conditions at

Joliet Regional Airport (KJOT)

Lat: 41.52°NLon: 88.18°WElev: 572ft.

Rain

64°F

18°C

Humidity 97%
Wind Speed Calm
Barometer 29.89 in
Dewpoint 63°F (17°C)
Visibility 4.00 mi
Last update 16 May 6:55 am CDT
Extended Forecast for

Symerton IL

  • Today

    Today: A chance of showers and thunderstorms before 9am, then a slight chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 84. South wind around 10 mph becoming west southwest in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 50%.

    High: 84 °F

    Chance
    Showers then
    Slight Chance
    T-storms

  • Tonight

    Tonight: A 40 percent chance of showers and thunderstorms, mainly after 2am. Mostly cloudy, with a low around 60. South southwest wind around 5 mph becoming southeast after midnight. Winds could gust as high as 10 mph.

    Low: 60 °F

    Slight Chance
    T-storms then
    Chance
    Showers

  • Sunday

    Sunday: A 10 percent chance of showers before 7am. Partly sunny, with a high near 86. Breezy, with a south wind 10 to 15 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 30 mph.

    High: 86 °F

    Slight Chance
    Showers then
    Mostly Sunny
    and Breezy

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 66. South wind around 15 mph, with gusts as high as 25 mph.

    Low: 66 °F

    Mostly Clear

  • Monday

    Monday: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 1pm. High near 86. Breezy, with a south southwest wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 80%.

    High: 86 °F

    Breezy.
    Chance
    Showers then
    Showers

  • Monday Night

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

    Low: 66 °F

    Showers
    Likely

  • Tuesday

    Tuesday: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 84. Breezy. Chance of precipitation is 70%.

    High: 84 °F

    Breezy.
    Chance
    T-storms then
    Showers
    Likely

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 53.

    Low: 53 °F

    Chance
    T-storms

  • Wednesday

    Wednesday: Partly sunny, with a high near 68.

    High: 68 °F

    Partly Sunny

Detailed Forecast

Today
A chance of showers and thunderstorms before 9am, then a slight chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 84. South wind around 10 mph becoming west southwest in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 50%.
Tonight
A 40 percent chance of showers and thunderstorms, mainly after 2am. Mostly cloudy, with a low around 60. South southwest wind around 5 mph becoming southeast after midnight. Winds could gust as high as 10 mph.
Sunday
A 10 percent chance of showers before 7am. Partly sunny, with a high near 86. Breezy, with a south wind 10 to 15 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 30 mph.
Sunday Night
Mostly clear, with a low around 66. South wind around 15 mph, with gusts as high as 25 mph.
Monday
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 1pm. High near 86. Breezy, with a south southwest wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 80%.
Monday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 66. Chance of precipitation is 60%.
Tuesday
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 84. Breezy. Chance of precipitation is 70%.
Tuesday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 53.
Wednesday
Partly sunny, with a high near 68.
Wednesday Night
Mostly cloudy, with a low around 45.
Thursday
Mostly sunny, with a high near 67.
Thursday Night
Partly cloudy, with a low around 47.
Friday
Mostly sunny, with a high near 73.
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ABOUT THIS FORECAST

 
Point Forecast:
Symerton IL
 41.35°N 88.06°W
Last Update:
4:01 am CDT May 16, 2026
Forecast Valid:
7am CDT May 16, 2026-6pm CDT May 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