Naperville, IL Weather Forecast
DuPage County, Illinois
Live radar, warnings and storm tracking for Naperville, 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 Naperville
Every NWS warning, pushed to your phone, inbox or webhook the moment it is issued.
Naperville, IL at a glance
Naperville is home to about 150,245 people in DuPage County, across 39 square miles. It ranks 4th by population of 441 places in Illinois with a forecast here. The nearest neighbour with its own forecast is Lisle, 5 miles away.
- County
- DuPage County
- Population
- 150,245 2023 est.
- Land area
- 39 sq mi
- People per sq mi
- 3,837
- Forecast point
- 41.7492°N, 88.1620°W
How well can the network see Naperville?
The nearest Doppler radar is KLOT (Chicago, IL), to the SSE. Its lowest scan passes about 550 ft above Naperville. That is about as close as US radar coverage gets: low-level rotation and gust fronts over Naperville show up clearly. Naperville is closer to its radar than 95% 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 Naperville
- Lisle, IL5 mi
- Warrenville, IL5 mi
- Bolingbrook, IL5 mi
- Woodridge, IL6 mi
- Aurora, IL7 mi
- Downers Grove, IL8 mi
- Wheaton, IL8 mi
- Winfield, IL9 mi
Elsewhere in Illinois
ChicagoAuroraJolietRockfordElginSpringfieldAll Illinois forecasts →

