Weather in Lemont, IL
Updated 2026-08-11 12:45 local time · ZIP codes 60439
Light rain
No government weather alerts were returned for this location at the latest update.
Next hours
70°88% rain
79°28% rain
77°16% rain78°16% rain
83°12% rain79°13% rain79°12% rain
76°13% rain75°18% rain75°18% rain
75°75% rain
70°42% rain3-day weather forecast
Weather details
Sunrise, sunset and moon
Weather insights for today
Rain chance reaches about 75% over the next 12 hours.
It feels like 70°F with winds near 5 mph.
76°F, 13% rain chance and 3 mph wind.
Visibility is around 9 mi; gusts may reach 9 mph.
Current temperature is 70°F, wind 5 mph, rain chance up to 75%.
UV index is 1.
Lemont weather today
Light rain and 70°F in Lemont, IL. Today's high is 86°F with a 83% rain chance. Winds are around 5 mph with gusts near 8 mph. Relative humidity is 100%, pressure is 29.92 inHg, and visibility is about 9 miles.
Tonight and tomorrow in Lemont
Sunrise is at 05:56 AM and sunset is at 07:57 PM. Tomorrow's forecast calls for Sunny with a high near 82°F and a low near 69°F. The maximum rain chance is 83%.