Glendale Heights, IL Weather Forecast
Local 7-day forecast
Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms
Track current conditions, temperature changes, wind, and the full daily outlook for Glendale Heights, IL in one place.
A slight chance of showers and thunderstorms between 9am and 10am, then a chance of showers and thunderstorms between 10am and 1pm, then a chance of showers and thunderstorms. Mostly cloudy. High near 85, with temperatures falling to around 82 in the afternoon. West southwest wind 5 to 10 mph. Chance of precipitation is 50%. New rainfall amounts between a quarter and half of an inch possible.
Local Weather Overview
This forecast page for Glendale Heights, 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 8, 2026 7:58 PM CDT.
The active forecast window currently covers Jul 9 to Jul 14, 2026 for Glendale Heights, IL.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Jul 9 to Jul 14, 2026
- Latest sync
- Jul 8, 2026 7:58 PM CDT
- Forecast office
- LOT
- Source
- NOAA / NWS
Daily Outlook
This Week in Glendale Heights
Tuesday looks like the warmest upcoming period in Glendale Heights at 91 degrees F.
Friday Night is the coolest period ahead with temperatures near 64 degrees F.
The strongest winds are forecast for Thursday at about 5 to 10 mph WSW.
Precipitation is mentioned in 2 upcoming forecast periods.
Forecast Details
- Last updated
- Jul 8, 2026 7:58 PM 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
A chance of showers and thunderstorms before midnight, then a chance of showers and thunderstorms between midnight and 3am. Mostly cloudy, with a low around 66. North northeast wind around 5 mph, with gusts as high as 15 mph. Chance of precipitation is 50%.
Partly sunny, with a high near 83. Northeast wind 5 to 10 mph.
Mostly cloudy, with a low around 64.
Mostly sunny, with a high near 84.
Partly cloudy, with a low around 66.
Sunny, with a high near 86.
Mostly clear, with a low around 68.
Sunny, with a high near 89.
Mostly clear, with a low around 70.
Sunny, with a high near 91.
Mostly clear, with a low around 72.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Thursday
Jul 9
|
Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms
|
85°F |
5 to 10 mph
WSW
|
|
Thursday Night
Jul 9
|
Chance Showers And Thunderstorms
|
66°F |
5 mph
NNE
|
|
Friday
Jul 10
|
Partly Sunny
|
83°F |
5 to 10 mph
NE
|
|
Friday Night
Jul 10
|
Mostly Cloudy
|
64°F |
5 to 10 mph
NE
|
|
Saturday
Jul 11
|
Mostly Sunny
|
84°F |
5 to 10 mph
NE
|
|
Saturday Night
Jul 11
|
Partly Cloudy
|
66°F |
0 to 10 mph
ENE
|
|
Sunday
Jul 12
|
Sunny
|
86°F |
0 to 5 mph
ENE
|
|
Sunday Night
Jul 12
|
Mostly Clear
|
68°F |
0 to 5 mph
SE
|
|
Monday
Jul 13
|
Sunny
|
89°F |
5 mph
N
|
|
Monday Night
Jul 13
|
Mostly Clear
|
70°F |
5 mph
SW
|
|
Tuesday
Jul 14
|
Sunny
|
91°F |
5 to 10 mph
W
|
|
Tuesday Night
Jul 14
|
Mostly Clear
|
72°F |
5 to 10 mph
W
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Glendale Heights.