Current Conditions

Glendale Heights, Illinois

61°F16°C
Partly Cloudy

Wind

NE 6 mph10 km/h

Humidity

79%

Cloud Cover

91%

As of Wednesday, September 23, 2026 at 11:17 PM CDT

Today's Outlook

Night

Mostly cloudy, with a low around 58°F14°C. Light wind from the ENE around 6 mph9 km/h.

7-Day Forecast

DayConditionHigh (°F)Low (°F)Precip (mm)Cloud Cover (%)Wind (mph)
Partly CloudyHigh 68°F20°CLow 57°F14°CPrecip 0 in0 mmCloud 69%Wind ENE 6 mph10 km/hThursday: Mostly cloudy and mild, with a high of 68°F20°C and morning low of 57°F14°C. Breezy from the ENE at 7 mph11 km/h. Thursday Night: Mostly cloudy, with a low around 58°F14°C. Light wind from the ENE around 6 mph9 km/h.
Partly CloudyHigh 66°F19°CLow 57°F14°CPrecip 0 in0.1 mm7%Cloud 76%Wind ENE 5 mph8 km/hFriday: Overcast and mild, with a high of 66°F19°C and morning low of 57°F14°C. Light wind from the ENE around 5 mph8 km/h. Friday Night: Mostly cloudy, with a low around 57°F14°C. Light wind from the ENE around 5 mph8 km/h.
Partly CloudyHigh 69°F21°CLow 51°F11°CPrecip 0 in0 mmCloud 52%Wind ENE 5 mph9 km/hSaturday: Mostly cloudy and warm, with a high of 69°F21°C and morning low of 51°F11°C. Light wind from the E around 6 mph9 km/h. Dry air. Saturday Night: Mostly cloudy, with a low around 53°F12°C. Light wind from the ENE around 5 mph8 km/h.
ClearHigh 71°F22°CLow 50°F10°CPrecip 0 in0 mmCloud 32%Wind NE 5 mph7 km/hSunday: Partly cloudy and warm, with a high of 71°F22°C and morning low of 50°F10°C. Light wind from the NE around 5 mph7 km/h. Dry air. Sunday Night: Partly cloudy, with a low around 52°F11°C. Light wind from the NE around 5 mph7 km/h.
ClearHigh 73°F23°CLow 50°F10°CPrecip 0 in0 mmCloud 19%Wind NE 4 mph7 km/hMonday: Mostly clear and warm, with a high of 73°F23°C and morning low of 50°F10°C. Light wind from the NNE around 4 mph6 km/h. Monday Night: Mostly clear, with a low around 51°F11°C. Light wind from the NE around 5 mph7 km/h.
Light RainHigh 74°F23°CLow 51°F11°CPrecip 0.05 in1.3 mm22%Cloud 74%Wind S 6 mph9 km/hTuesday: Mostly cloudy and warm, with a high of 74°F23°C and morning low of 51°F11°C. Breezy from the S at 6 to 7 mph10 to 11 km/h. 12% chance of drizzle in the afternoon. Tuesday Night: Mostly cloudy, with a low around 53°F12°C. Breezy from the SSE at 6 to 7 mph9 to 12 km/h. 22% chance of light rain in the evening.
Light RainHigh 70°F21°CLow 61°F16°CPrecip 0.34 in8.6 mm45%Cloud 81%Wind SSW 8 mph12 km/hWednesday: Overcast and warm, with a high of 70°F21°C and morning low of 61°F16°C. Breezy from the SSW at 8 mph13 km/h. 45% chance of light rain throughout the day. Wednesday Night: Overcast, with a low around 62°F17°C. Breezy from the S at 7 to 8 mph12 to 13 km/h. 39% chance of light rain throughout the night.

15-Day Forecast

Day High Low Precip Cloud Cover Condition Wind
ThursdaySep 2468°F20°C57°F14°C0 in0 mm· —69%Partly CloudyENE 6 mph10 km/h
FridaySep 2566°F19°C57°F14°C0 in0.1 mm· 7%76%Partly CloudyENE 5 mph8 km/h
SaturdaySep 2669°F21°C51°F11°C0 in0 mm· —52%Partly CloudyENE 5 mph9 km/h
SundaySep 2771°F22°C50°F10°C0 in0 mm· —32%ClearNE 5 mph7 km/h
MondaySep 2873°F23°C50°F10°C0 in0 mm· —19%ClearNE 4 mph7 km/h
TuesdaySep 2974°F23°C51°F11°C0.05 in1.3 mm· 22%74%Light RainS 6 mph9 km/h
WednesdaySep 3070°F21°C61°F16°C0.34 in8.6 mm· 45%81%Light RainSSW 8 mph12 km/h
ThursdayOct 170°F21°C59°F15°C0.33 in8.3 mm· 30%72%Light RainSW 8 mph13 km/h
FridayOct 269°F21°C58°F14°C0.21 in5.4 mm· 26%62%ShowersWSW 9 mph14 km/h
SaturdayOct 370°F21°C56°F13°C0.12 in3 mm· 18%55%ShowersWSW 7 mph12 km/h
SundayOct 465°F18°C55°F13°C0.16 in4.1 mm· 25%56%ShowersW 9 mph15 km/h
MondayOct 563°F17°C49°F10°C
Feels 46°F8°C
0.12 in3 mm· 18%50%ShowersW 9 mph15 km/h
TuesdayOct 664°F18°C49°F9°C
Feels 45°F7°C
0.07 in1.7 mm· 12%47%DrizzleW 9 mph14 km/h
WednesdayOct 764°F18°C48°F9°C
Feels 44°F7°C
0.07 in1.7 mm· 11%39%DrizzleWNW 8 mph13 km/h
ThursdayOct 865°F18°C48°F9°C
Feels 44°F7°C
0.03 in0.8 mm· 8%38%ClearWNW 8 mph13 km/h

Nearby Cities

About This Forecast

This forecast is powered by WeatherMesh, the world's most advanced and accurate weather model powered by AI. WeatherMesh is built on proprietary data from WindBorne's Global Sounding Balloon constellation — the world's largest fleet of autonomous, long-duration weather balloons — collecting observations across 100% of Earth, including over oceans and remote regions where no other data exists.

WeatherMesh consistently outperforms legacy models in independent benchmarks. View Benchmarks →

Access WeatherMesh forecasts programmatically via our API. API Documentation →

How to Access Weather Forecasts

PatternExampleDescription
/weather/{country}/{city}//weather/united-states/san-francisco/City forecast (canonical URL)
/weather/{city}//weather/tokyo/Shorthand — redirects to most populous match
/weather/{country}/{region}/{city}//weather/united-states/california/san-francisco/With region — redirects to canonical
/weather/nearby?lat={lat}&lon={lon}/weather/nearby?lat=48.1&lon=11.5Find nearest city by coordinates
/weather/{country}//weather/germany/Country index — all cities by region

Country and city names use lowercase slugs with hyphens (e.g. united-states, san-francisco). Arbitrary city names are supported — if not in our database, we geocode the name and serve the forecast for that location.

For programmatic access, use theWindBorne Forecast APIwhich returns structured JSON for any coordinates worldwide.

Coordinates: 41.9146°N, 88.0649°W·Elevation: 232m·Timezone: America/Chicago·Population: 34,208