DuPage County, IL Weather Forecast
County weather hub
Mostly Cloudy
Compare major city weather across DuPage County, scan the latest forecast snapshots, and jump into local 7-day outlook pages from one hub.
Mostly cloudy. High near 66, with temperatures falling to around 62 in the afternoon. Northeast wind 10 to 15 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
- Sep 23 to Sep 29, 2026
- Latest sync
- Sep 23, 2026 3:57 PM CDT
- Forecast office
- LOT
- Source
- NOAA / NWS
Daily Outlook
This Week in DuPage County
Tuesday looks like the warmest upcoming period in DuPage County at 72 degrees F.
Friday Night is the coolest period ahead with temperatures near 52 degrees F.
The strongest winds are forecast for This Afternoon at about 10 to 15 mph NE.
Precipitation is mentioned in 2 upcoming forecast periods.
Forecast Details
- Last updated
- Sep 23, 2026 3:57 PM CDT
- Coverage
- 7 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
Mostly cloudy, with a low around 57. East northeast wind 5 to 10 mph, with gusts as high as 20 mph.
Mostly sunny, with a high near 68. East northeast wind 5 to 10 mph.
Mostly cloudy, with a low around 56. East wind around 5 mph.
Partly sunny, with a high near 67. East wind around 5 mph.
Partly cloudy, with a low around 52.
Partly sunny, with a high near 67.
Mostly cloudy, with a low around 54.
Partly sunny, with a high near 68.
Mostly cloudy, with a low around 53.
Mostly sunny, with a high near 70.
Mostly clear, with a low around 55.
A chance of rain showers after 1pm. Mostly sunny, with a high near 72.
Rain showers likely. Mostly cloudy, with a low around 61.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
This Afternoon
Sep 23
|
Mostly Cloudy
|
66°F |
10 to 15 mph
NE
|
|
Tonight
Sep 23
|
Mostly Cloudy
|
57°F |
5 to 10 mph
ENE
|
|
Thursday
Sep 24
|
Mostly Sunny
|
68°F |
5 to 10 mph
ENE
|
|
Thursday Night
Sep 24
|
Mostly Cloudy
|
56°F |
5 mph
E
|
|
Friday
Sep 25
|
Partly Sunny
|
67°F |
5 mph
E
|
|
Friday Night
Sep 25
|
Partly Cloudy
|
52°F |
5 mph
E
|
|
Saturday
Sep 26
|
Partly Sunny
|
67°F |
5 mph
ESE
|
|
Saturday Night
Sep 26
|
Mostly Cloudy
|
54°F |
0 to 5 mph
ESE
|
|
Sunday
Sep 27
|
Partly Sunny
|
68°F |
0 to 5 mph
ESE
|
|
Sunday Night
Sep 27
|
Mostly Cloudy
|
53°F |
0 to 5 mph
ENE
|
|
Monday
Sep 28
|
Mostly Sunny
|
70°F |
0 to 5 mph
ESE
|
|
Monday Night
Sep 28
|
Mostly Clear
|
55°F |
5 mph
SE
|
|
Tuesday
Sep 29
|
Mostly Sunny then Chance Rain Showers
|
72°F |
5 to 10 mph
SSE
|
|
Tuesday Night
Sep 29
|
Rain Showers Likely
|
61°F |
10 to 15 mph
SSE
|
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.
