DuPage County, IL Weather Forecast
County weather hub
Mostly Sunny
Compare major city weather across DuPage County, scan the latest forecast snapshots, and jump into local 7-day outlook pages from one hub.
Mostly sunny, with a high near 70. Northwest wind 5 to 10 mph.
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
- Oct 8 to Oct 13, 2026
- Latest sync
- Oct 7, 2026 6:45 AM CDT
- Forecast office
- LOT
- Source
- NOAA / NWS
Daily Outlook
This Week in DuPage County
Saturday looks like the warmest upcoming period in DuPage County at 80 degrees F.
Thursday Night is the coolest period ahead with temperatures near 48 degrees F.
The strongest winds are forecast for Saturday at about 10 to 15 mph SSW.
Precipitation is mentioned in 4 upcoming forecast periods.
Forecast Details
- Last updated
- Oct 7, 2026 6:45 AM CDT
- Coverage
- 6 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
Partly cloudy, with a low around 48. West northwest wind 0 to 5 mph.
Mostly sunny, with a high near 72.
Mostly clear, with a low around 58.
Sunny, with a high near 80.
Partly cloudy, with a low around 60.
A slight chance of rain showers after 7am. Mostly sunny, with a high near 76.
A slight chance of rain showers before 7pm. Partly cloudy, with a low around 57.
Mostly sunny, with a high near 75.
A chance of rain showers after 7pm. Partly cloudy, with a low around 55.
A chance of rain showers. Partly sunny, with a high near 67.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Thursday
Oct 8
|
Mostly Sunny
|
70°F |
5 to 10 mph
NW
|
|
Thursday Night
Oct 8
|
Partly Cloudy
|
48°F |
0 to 5 mph
WNW
|
|
Friday
Oct 9
|
Mostly Sunny
|
72°F |
0 to 10 mph
SSE
|
|
Friday Night
Oct 9
|
Mostly Clear
|
58°F |
10 mph
SSE
|
|
Saturday
Oct 10
|
Sunny
|
80°F |
10 to 15 mph
SSW
|
|
Saturday Night
Oct 10
|
Partly Cloudy
|
60°F |
5 to 10 mph
S
|
|
Sunday
Oct 11
|
Slight Chance Rain Showers
|
76°F |
5 mph
SE
|
|
Sunday Night
Oct 11
|
Slight Chance Rain Showers then Partly Cloudy
|
57°F |
5 mph
SE
|
|
Columbus Day
Oct 12
|
Mostly Sunny
|
75°F |
5 to 10 mph
WSW
|
|
Monday Night
Oct 12
|
Chance Rain Showers
|
55°F |
10 mph
SSW
|
|
Tuesday
Oct 13
|
Chance Rain Showers
|
67°F |
10 to 15 mph
WNW
|
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.
