DuPage County, IL Weather Forecast
County weather hub
Showers And Thunderstorms Likely
Compare major city weather across DuPage County, scan the latest forecast snapshots, and jump into local 7-day outlook pages from one hub.
Showers and thunderstorms likely. Partly sunny, with a high near 84.
County Weather Overview
This county weather page brings together forecast coverage for DuPage County so visitors can compare temperatures, wind, and conditions across the region without hopping between unrelated pages.
Current forecast coverage spans 12 of 12 mapped cities in DuPage County.
Page Snapshot
- Page focus
- county weather
- Forecast window
- Jul 9 to Jul 11, 2026
- Latest sync
- Jul 5, 2026 11:49 AM CDT
- Forecast office
- LOT
- Source
- NOAA / NWS
Daily Outlook
This Week in DuPage County
Thursday looks like the warmest upcoming period in DuPage County at 84 degrees F.
Friday Night is the coolest period ahead with temperatures near 63 degrees F.
The strongest winds are forecast for Thursday at about 5 to 10 mph WSW.
Precipitation is mentioned in 4 upcoming forecast periods.
Forecast Details
- Last updated
- Jul 5, 2026 11:49 AM CDT
- Coverage
- 3 days
- Time zone
- America/Chicago
- Forecast office
- LOT
- Radar station
- KLOT
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Showers and thunderstorms likely. Mostly cloudy, with a low around 65.
A slight chance of rain showers before 1pm, then a slight chance of showers and thunderstorms. Partly sunny, with a high near 82.
A slight chance of showers and thunderstorms before 7pm. Partly cloudy, with a low around 63.
Mostly sunny, with a high near 84.
Mostly clear, with a low around 64.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Thursday
Jul 9
|
Showers And Thunderstorms Likely
|
84°F |
5 to 10 mph
WSW
|
|
Thursday Night
Jul 9
|
Showers And Thunderstorms Likely
|
65°F |
5 to 10 mph
N
|
|
Friday
Jul 10
|
Slight Chance Rain Showers then Slight Chance Showers And Thunderstorms
|
82°F |
5 to 10 mph
N
|
|
Friday Night
Jul 10
|
Slight Chance Showers And Thunderstorms then Partly Cloudy
|
63°F |
5 to 10 mph
N
|
|
Saturday
Jul 11
|
Mostly Sunny
|
84°F |
5 to 10 mph
N
|
|
Saturday Night
Jul 11
|
Mostly Clear
|
64°F |
5 to 10 mph
NNE
|
Major City Forecasts
Live forecast snapshots for major cities across DuPage County.
Coverage
Forecast coverage currently spans 12 of 12 mapped cities in DuPage County.
Largest mapped city population in this region: 147,986.
