Glendale Heights, IL Weather Forecast
Local 7-day forecast
Mostly Sunny then Showers And Thunderstorms Likely
Track current conditions, temperature changes, wind, and the full daily outlook for Glendale Heights, IL in one place.
Showers and thunderstorms likely after 2pm. Some of the storms could produce heavy rain. Mostly sunny. High near 88, with temperatures falling to around 81 in the afternoon. Heat index values as high as 95. South southwest wind 5 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 70%. New rainfall amounts between a half and three quarters 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: Jun 10, 2026 8:33 AM CDT.
The active forecast window currently covers Jun 10 to Jun 16, 2026 for Glendale Heights, IL.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Jun 10 to Jun 16, 2026
- Latest sync
- Jun 10, 2026 8:33 AM CDT
- Forecast office
- LOT
- Source
- NOAA / NWS
Daily Outlook
This Week in Glendale Heights
Today looks like the warmest upcoming period in Glendale Heights at 88 degrees F.
Sunday Night is the coolest period ahead with temperatures near 56 degrees F.
The strongest winds are forecast for Today at about 5 to 20 mph SSW.
Precipitation is mentioned in 11 upcoming forecast periods.
Forecast Details
- Last updated
- Jun 10, 2026 8:33 AM 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
Showers and thunderstorms likely before 3am. Mostly cloudy, with a low around 70. Southwest wind 10 to 15 mph, with gusts as high as 35 mph. Chance of precipitation is 70%. New rainfall amounts between three quarters and one inch possible.
Showers and thunderstorms after 1pm. Partly sunny, with a high near 86. South southwest wind 10 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Showers and thunderstorms before 1am. Mostly cloudy, with a low around 61. West southwest wind 10 to 20 mph, with gusts as high as 35 mph. Chance of precipitation is 90%.
Sunny, with a high near 78. West wind 10 to 15 mph, with gusts as high as 30 mph.
Mostly clear, with a low around 63.
Sunny, with a high near 82.
Showers and thunderstorms likely after 7pm. Mostly cloudy, with a low around 63.
Showers and thunderstorms likely before 1pm. Partly sunny, with a high near 75.
A slight chance of rain showers after 1am. Partly cloudy, with a low around 56.
A slight chance of rain showers. Partly sunny, with a high near 73.
A slight chance of rain showers. Partly cloudy, with a low around 56.
A slight chance of rain showers before 1pm, then a chance of showers and thunderstorms. Mostly sunny, with a high near 75.
A chance of showers and thunderstorms. Partly cloudy, with a low around 57.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Today
Jun 10
|
Mostly Sunny then Showers And Thunderstorms Likely
|
88°F |
5 to 20 mph
SSW
|
|
Tonight
Jun 10
|
Showers And Thunderstorms Likely
|
70°F |
10 to 15 mph
SW
|
|
Thursday
Jun 11
|
Partly Sunny then Showers And Thunderstorms
|
86°F |
10 to 20 mph
SSW
|
|
Thursday Night
Jun 11
|
Showers And Thunderstorms
|
61°F |
10 to 20 mph
WSW
|
|
Friday
Jun 12
|
Sunny
|
78°F |
10 to 15 mph
W
|
|
Friday Night
Jun 12
|
Mostly Clear
|
63°F |
5 to 15 mph
WSW
|
|
Saturday
Jun 13
|
Sunny
|
82°F |
5 to 15 mph
SW
|
|
Saturday Night
Jun 13
|
Showers And Thunderstorms Likely
|
63°F |
10 to 15 mph
WSW
|
|
Sunday
Jun 14
|
Showers And Thunderstorms Likely
|
75°F |
10 to 15 mph
NNW
|
|
Sunday Night
Jun 14
|
Partly Cloudy then Slight Chance Rain Showers
|
56°F |
5 to 10 mph
N
|
|
Monday
Jun 15
|
Slight Chance Rain Showers
|
73°F |
5 to 10 mph
N
|
|
Monday Night
Jun 15
|
Slight Chance Rain Showers
|
56°F |
5 to 10 mph
WNW
|
|
Tuesday
Jun 16
|
Slight Chance Rain Showers then Chance Showers And Thunderstorms
|
75°F |
5 to 10 mph
WSW
|
|
Tuesday Night
Jun 16
|
Chance Showers And Thunderstorms
|
57°F |
5 to 10 mph
W
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Glendale Heights.