Weather World
City of Joliet, IllinoisJoliet, IL 7-Day Night Weather Forecast
Quick Weather Clicks
Settings
Sun & Moon
Weather Quote O' the Day
Joliet, IL Weather Forecast
Joliet, IL Weather Forecast Date: 321 PM CDT Sat Sep 12 2026
The area/counties/county of: Northern Will, including the cities of: Joliet, Bolingbrook, Plainfield, and Mokena.or toggle through each period.
Late This Afternoon... Mostly cloudy. Temperatures in the mid 80s. West winds around 10 mph.
Tonight... Partly cloudy. A chance of sprinkles early in the evening. Lows in the lower 60s. Northwest winds 5 to 10 mph, becoming north after midnight.
Sunday... Mostly cloudy. A chance of showers in the afternoon. Highs in the mid 70s. North winds 5 to 10 mph. Chance of precipitation 40%.
Sunday Night... Partly cloudy in the evening, then clearing. Lows in the lower 50s. North winds 5 to 10 mph.
Monday... Mostly sunny in the morning, then becoming partly cloudy. Highs in the mid 70s. East winds 5 to 10 mph, increasing to southeast 10 to 15 mph in the afternoon.
Monday Night... Partly cloudy. A slight chance of showers and thunderstorms after midnight. Lows in the mid 60s. South winds 15 to 20 mph with gusts up to 25 mph. Chance of precipitation 20%.
Tuesday... Mostly cloudy with a chance of showers. A slight chance of thunderstorms in the morning, then a chance of thunderstorms in the afternoon. Highs in the upper 80s. Chance of precipitation 50%.
Tuesday Night... A chance of thunderstorms. Showers. Lows in the mid 60s. Chance of precipitation 80%.
Wednesday... Showers likely, mainly in the morning. Highs in the upper 70s. Chance of precipitation 70%.
Wednesday Night... Mostly cloudy. A chance of showers in the evening, then showers likely after midnight. Lows in the mid 60s. Chance of precipitation 60%.
Thursday... Showers likely in the morning. Highs around 80. Chance of precipitation 60%.
Thursday Night... Mostly cloudy. A chance of showers after midnight. Lows in the lower 60s. Chance of precipitation 30%.
Friday... Mostly cloudy. A chance of showers in the morning. Highs in the mid 70s. Chance of precipitation 40%.
Friday Night... Mostly cloudy with a 40% chance of showers. Lows in the upper 50s.
POP = Probability of Precipitation
Joliet Radar Loop
Use the map search tool if you want to place a location marker on the radar map...