Clarendon Hills, IL Weather Forecast
Local 7-day forecast
Patchy Smoke
Track current conditions, temperature changes, wind, and the full daily outlook for Clarendon Hills, IL in one place.
Patchy smoke and a chance of showers and thunderstorms. Partly sunny. High near 90, with temperatures falling to around 88 in the afternoon. Heat index values as high as 97. West southwest wind around 10 mph. Chance of precipitation is 60%. New rainfall amounts less than a tenth of an inch possible.
Local Weather Overview
This forecast page for Clarendon Hills, IL is designed for quick trip planning, giving you a clean read on daytime highs, overnight lows, and changing conditions across the upcoming forecast window. Latest sync: Jul 17, 2026 3:19 PM CDT.
The active forecast window currently covers Jul 17 to Jul 23, 2026 for Clarendon Hills, IL.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Jul 17 to Jul 23, 2026
- Latest sync
- Jul 17, 2026 3:19 PM CDT
- Forecast office
- LOT
- Source
- NOAA / NWS
Daily Outlook
This Week in Clarendon Hills
This Afternoon looks like the warmest upcoming period in Clarendon Hills at 90 degrees F.
Wednesday Night is the coolest period ahead with temperatures near 61 degrees F.
The strongest winds are forecast for Saturday at about 10 to 15 mph WNW.
Precipitation is mentioned in 5 upcoming forecast periods.
Forecast Details
- Last updated
- Jul 17, 2026 3:19 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
Scattered showers and thunderstorms before 9pm. Partly cloudy, with a low around 74. Southwest wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 40%. New rainfall amounts between a tenth and quarter of an inch possible.
Showers and thunderstorms likely after 1pm. Some of the storms could produce heavy rain. Mostly sunny. High near 90, with temperatures falling to around 85 in the afternoon. Heat index values as high as 99. West northwest wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
Areas of smoke between 8pm and 1am. Partly cloudy, with a low around 68. North northeast wind 5 to 10 mph, with gusts as high as 20 mph.
Sunny, with a high near 84. East northeast wind around 5 mph.
Partly cloudy, with a low around 66.
Partly sunny, with a high near 87.
Showers and thunderstorms likely between 7pm and 1am, then a chance of showers and thunderstorms. Partly cloudy, with a low around 72.
A chance of showers and thunderstorms before 7am. Mostly sunny, with a high near 85.
Mostly clear, with a low around 64.
Sunny, with a high near 79.
Mostly clear, with a low around 61.
Sunny, with a high near 80.
Partly cloudy, with a low around 63.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
This Afternoon
Jul 17
|
Patchy Smoke
|
90°F |
10 mph
WSW
|
|
Tonight
Jul 17
|
Scattered Showers And Thunderstorms then Partly Cloudy
|
74°F |
5 to 10 mph
SW
|
|
Saturday
Jul 18
|
Mostly Sunny then Showers And Thunderstorms Likely
|
90°F |
10 to 15 mph
WNW
|
|
Saturday Night
Jul 18
|
Areas Of Smoke
|
68°F |
5 to 10 mph
NNE
|
|
Sunday
Jul 19
|
Sunny
|
84°F |
5 mph
ENE
|
|
Sunday Night
Jul 19
|
Partly Cloudy
|
66°F |
5 mph
SE
|
|
Monday
Jul 20
|
Partly Sunny
|
87°F |
5 to 15 mph
SSW
|
|
Monday Night
Jul 20
|
Showers And Thunderstorms Likely
|
72°F |
10 to 15 mph
SW
|
|
Tuesday
Jul 21
|
Chance Showers And Thunderstorms then Mostly Sunny
|
85°F |
10 to 15 mph
WNW
|
|
Tuesday Night
Jul 21
|
Mostly Clear
|
64°F |
10 to 15 mph
NNW
|
|
Wednesday
Jul 22
|
Sunny
|
79°F |
10 mph
N
|
|
Wednesday Night
Jul 22
|
Mostly Clear
|
61°F |
5 to 10 mph
NNW
|
|
Thursday
Jul 23
|
Sunny
|
80°F |
5 to 10 mph
W
|
|
Thursday Night
Jul 23
|
Partly Cloudy
|
63°F |
5 to 10 mph
SSW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Clarendon Hills.