Illinois · NWS LOT office

Glendale Heights, IL weather

It is 55°F and cloudy at Chicago / West Chicago, Dupage Airport as of Oct 28, 1:15 AM CDT. Overnight: Partly Cloudy, low near 52°F. Forecast from the National Weather Service, issued Oct 27, 11:35 PM CDT.

Updated Oct 28, 1:27 AM CDT (snapshot)

Current conditions

Temperature

55°F

Cloudy

Wind

SSE 5 mph

Humidity 77% · dew point 48°F

Pressure · visibility

30.19 inHg

Visibility 10 mi

Observed at Chicago / West Chicago, Dupage Airport (KDPA), Oct 28, 1:15 AM CDT. Station readings can lag or be missing.

Alerts for this area

No active NWS alerts cover the Glendale Heights forecast zone right now.

Around the NWS LOT forecast area

No active alerts in zones served by the LOT office near Glendale Heights.

From the alert snapshot of Oct 28, 2026, 2:15 AM EDT. No alerts are active anywhere in Illinois.

For official warnings, check weather.gov and your local authorities. OpenForecast repeats National Weather Service alerts and may be delayed or incomplete. Follow instructions from emergency officials.

Next 24 hours

Hourly forecast for Glendale Heights (local time)
TimeTempForecastPrecip. chanceWind
Wed 1 AM58°FMostly Cloudy0%S 5 mph
Wed 2 AM56°FPartly Cloudy0%S 5 mph
Wed 3 AM55°FPartly Cloudy0%SSW 5 mph
Wed 4 AM54°FMostly Clear0%SSW 5 mph
Wed 5 AM53°FMostly Clear0% 0 mph
Wed 6 AM52°FSunny0% 0 mph
Wed 7 AM52°FSunny0% 0 mph
Wed 8 AM53°FSunny0%SSW 5 mph
Wed 9 AM57°FSunny0%SSW 5 mph
Wed 10 AM62°FSunny0%SSW 5 mph
Wed 11 AM65°FSunny0%SSW 10 mph
Wed 12 PM68°FSunny0%SSW 10 mph
Wed 1 PM70°FSunny0%S 10 mph
Wed 2 PM71°FSunny0%SSW 15 mph
Wed 3 PM72°FSunny0%SSW 15 mph
Wed 4 PM73°FSunny0%SSW 15 mph
Wed 5 PM71°FSunny0%S 10 mph
Wed 6 PM69°FMostly Clear0%S 10 mph
Wed 7 PM66°FMostly Clear0%S 10 mph
Wed 8 PM65°FMostly Clear0%S 10 mph
Wed 9 PM65°FMostly Clear0%S 10 mph
Wed 10 PM64°FMostly Clear0%S 10 mph
Wed 11 PM64°FMostly Clear0%S 10 mph
Thu 12 AM63°FPartly Cloudy0%SSW 10 mph

Hourly values come from the NWS gridded forecast for the 2.5 km grid square that covers the city's center point. Conditions elsewhere in Glendale Heights can differ.

7-day forecast

Overnight

Low 52°F

Partly cloudy, with a low around 52. South southwest wind 0 to 5 mph.

Wednesday

High 74°F·Low 60°F

Sunny. High near 74, with temperatures falling to around 71 in the afternoon. South southwest wind 0 to 15 mph, with gusts as high as 25 mph.

Wednesday Night: A slight chance of rain showers after 1am. Partly cloudy, with a low around 60. South southwest wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible.

Thursday

High 68°F·Low 47°F

A chance of rain showers before 1pm. Mostly sunny, with a high near 68. West wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 30%.

Thursday Night: Mostly clear, with a low around 47. North wind around 5 mph.

Friday

High 63°F·Low 51°F

A slight chance of rain showers after 1pm. Partly sunny, with a high near 63. Chance of precipitation is 20%.

Friday Night: A chance of rain showers before 1am, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 51.

Saturday

High 63°F·Low 52°F

A chance of showers and thunderstorms. Cloudy, with a high near 63.

Saturday Night: A slight chance of rain showers. Mostly cloudy, with a low around 52.

Sunday

High 64°F·Low 53°F

A chance of rain showers. Mostly cloudy, with a high near 64.

Sunday Night: A slight chance of rain showers. Mostly cloudy, with a low around 53.

Monday

High 66°F·Low 52°F

A chance of rain showers. Mostly cloudy, with a high near 66.

Monday Night: A chance of rain showers. Mostly cloudy, with a low around 52.

Tuesday

High 64°F

Rain showers likely. Mostly cloudy, with a high near 64.

Nearby cities

Larger cities in the area

Other cities in DuPage County

See every city we cover in Illinois, or check all active alerts.

About this forecast

Forecast office
Glendale Heights is served by the National Weather Service LOT forecast office, forecast zone ILZ013, county zone ILC043.
Location used
The Census Bureau's internal point for Glendale Heights (41.9189, -88.0781), in DuPage County. Population: 32,866 (2024 estimate), number 57 of the 121 Illinois cities on this site.
Radar
Nearest NWS radar: KLOT. View it on radar.weather.gov.

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Sources

  • Forecast, hourly forecast, observations and alerts: National Weather Service API, api.weather.gov/points/41.9189,-88.0781 (forecast issued Oct 27, 11:35 PM CDT).
  • Official forecast page: forecast.weather.gov.
  • City location and population: U.S. Census Bureau, Vintage 2024 population estimates and 2024 Gazetteer files.
  • Snapshot taken Oct 28, 2026. The NWS and Census Bureau do not endorse OpenForecast.

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