Lemont, IL Weather Forecast
Cook County, Illinois
Live radar, warnings and storm tracking for Lemont, with free alerts the moment it counts.
The next few hours
Taller, warmer bars mean heavier rain. Dotted means no reading for that hour.
Hour by hour
Sunrise and sunset
Next five days, scored 0 to 100The first day or two use the HRRR and NBM cloud layers. Later days only have total cloud, so treat them as a rough guide.
Know when sunset at this place will be worth a photo
We score every sunrise and sunset here from the cloud, haze and smoke forecast, and let you know when one is likely to light up. Sunrise the evening before, sunset a few hours ahead.
Seven-day outlook
Free alerts for Lemont
Every NWS warning, pushed to your phone, inbox or webhook the moment it is issued.
Lemont, IL at a glance
Lemont is home to about 17,575 people in Cook County, across 8.5 square miles. It ranks 145th by population of 441 places in Illinois with a forecast here. The nearest neighbour with its own forecast is Homer Glen, 5 miles away.
- County
- Cook County
- Population
- 17,575 2023 est.
- Land area
- 8.5 sq mi
- People per sq mi
- 2,075
- Forecast point
- 41.6672°N, 87.9820°W
How well can the network see Lemont?
The nearest Doppler radar is KLOT (Chicago, IL), to the SW. Its lowest scan passes about 340 ft above Lemont. That is about as close as US radar coverage gets: low-level rotation and gust fronts over Lemont show up clearly. Lemont is closer to its radar than 98% of US cities.
The closest weather station is KLOT (Romeoville/Lewis Univ Arpt). Representative on most days, though a thunderstorm can hit one and miss the other.
Forecasts near Lemont
- Homer Glen, IL5 mi
- Darien, IL5 mi
- Woodridge, IL6 mi
- Lockport, IL6 mi
- Bolingbrook, IL6 mi
- Burr Ridge, IL6 mi
- Romeoville, IL7 mi
- Willow Springs, IL7 mi
Elsewhere in Illinois
ChicagoAuroraJolietNapervilleRockfordElginAll Illinois forecasts →