DuPage County weather, town by town
31 places in DuPage County, Illinois, each with its own live forecast and radar, and where a station sits close enough, measured weather records.
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Measured at the NOAA stations serving these towns, daily records 1893 to 2026. Station extremes, not official state records.
DuPage County Weather Facts
DuPage County has 31 places on myweatherrock (23 villages, 8 cities), each with its own live forecast, hourly timeline, ten day outlook and radar. The hottest day in the station records is 111°F at Aurora Water on July 14, 1936. The coldest night is -29°F at Chicago W Chicago Dupage Ap on January 31, 2019. The wettest day brought 10 inches of rain at Little Red School House on July 18, 1996. The biggest single-day snow measured 18.58 inches at Chicago Ohare Intl Ap on January 2, 1999. Those are station measurements from NOAA's daily records, 1893 to 2026, not official state records. By area the largest place is Naperville, about 39 square miles.
About DuPage County weather
The map on the Now tab shows every DuPage County town's current temperature from our own server, one dot per town. Tap any dot, or type a town above, for that town's full forecast.
What the weather is usually like
Across the 31 DuPage County towns with station normals, the warmest month is July, when the day usually reaches 84°F, and the coldest is January, when the night usually falls to 17°F. May is the wettest, with rain on about 13 days. January nights run from about 15°F in Naperville to 19°F in Burr Ridge.
Means of the 1991 to 2020 station normals serving these towns, as published by NOAA; each town's page carries its own.
Where these numbers come from
- Current conditions and forecast: NOAA forecast grids decoded on our own server, corrected against the nearest reporting station and our own radar. Open-Meteo is consulted only as a fallback when our server is silent.
- Records: computed by myweatherrock from NOAA GHCN-Daily station records at the stations serving these towns. Measurements, not estimates.
- Warnings and alerts: the National Weather Service, passed through unchanged.
DuPage County weather records
Measured at the NOAA stations serving these towns, daily records 1893 to 2026. Station extremes, not official state records.
Common questions about DuPage County weather
- What is the hottest temperature recorded at a DuPage County station?
- 111°F at Aurora Water on July 14, 1936, in the NOAA daily station records myweatherrock holds (1893 to 2026).
- What is the coldest temperature recorded at a DuPage County station?
- -29°F at Chicago W Chicago Dupage Ap on January 31, 2019.
- What is the most rain a DuPage County station has measured in one day?
- 10 inches at Little Red School House on July 18, 1996.
- What is the biggest one-day snowfall at a DuPage County station?
- 18.58 inches at Chicago Ohare Intl Ap on January 2, 1999.
- How many DuPage County towns have a weather page here?
- 31: 23 villages, 8 cities. Each page carries current conditions, the hourly timeline, the ten day outlook, radar, and where a station sits close enough, measured records.
- Where does the DuPage County forecast come from?
- NOAA forecast grids (the National Weather Service digital forecast, the National Blend of Models, HRRR and GFS) decoded on our own server, corrected against the nearest reporting station and our own radar. Open-Meteo is consulted only as a fallback when our server is silent.
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