Current Conditions

Prospect Heights, Illinois

61°F16°C
Partly Cloudy

Wind

ENE 12 mph19 km/h

Humidity

76%

Cloud Cover

75%

As of Wednesday, September 23, 2026 at 8:53 AM CDT

Today's Outlook

Day

Mostly cloudy and mild, with a high of 63°F17°C and morning low of 57°F14°C. Breezy from the NE at 11 to 12 mph18 to 19 km/h.

Night

Overcast, with a low around 62°F17°C. Breezy from the NE at 8 mph13 km/h.

7-Day Forecast

DayConditionHigh (°F)Low (°F)Precip (mm)Cloud Cover (%)Wind (mph)
Partly CloudyHigh 63°F17°CLow 57°F14°CPrecip 0 in0.1 mm1%Cloud 74%Wind NE 10 mph16 km/hWednesday: Mostly cloudy and mild, with a high of 63°F17°C and morning low of 57°F14°C. Breezy from the NE at 11 to 12 mph18 to 19 km/h. Wednesday Night: Overcast, with a low around 62°F17°C. Breezy from the NE at 8 mph13 km/h.
Partly CloudyHigh 66°F19°CLow 58°F14°CPrecip 0 in0 mmCloud 46%Wind ENE 7 mph12 km/hThursday: Partly cloudy and mild, with a high of 66°F19°C and morning low of 58°F14°C. Breezy from the ENE at 8 to 9 mph13 to 14 km/h. Thursday Night: Mostly cloudy, with a low around 58°F15°C. Breezy from the ENE at 7 to 8 mph11 to 12 km/h.
Partly CloudyHigh 65°F18°CLow 57°F14°CPrecip 0 in0.1 mm4%Cloud 67%Wind ENE 6 mph9 km/hFriday: Mostly cloudy and mild, with a high of 65°F18°C and morning low of 57°F14°C. Breezy from the ENE at 6 to 8 mph9 to 12 km/h. Friday Night: Mostly cloudy, with a low around 58°F14°C. Light wind from the E around 6 mph9 km/h.
Partly CloudyHigh 67°F19°CLow 54°F12°CPrecip 0 in0 mmCloud 50%Wind ENE 6 mph9 km/hSaturday: Mostly cloudy and mild, with a high of 67°F19°C and morning low of 54°F12°C. Breezy from the E at 6 to 7 mph9 to 11 km/h. Dry air. Saturday Night: Partly cloudy, with a low around 56°F13°C. Light wind from the ENE around 6 mph9 km/h.
ClearHigh 69°F21°CLow 54°F12°CPrecip 0 in0 mmCloud 39%Wind NE 5 mph8 km/hSunday: Partly cloudy and warm, with a high of 69°F21°C and morning low of 54°F12°C. Breezy from the NE at 5 to 7 mph8 to 11 km/h. Sunday Night: Partly cloudy, with a low around 55°F13°C. Light wind from the NE around 5 mph8 km/h.
ClearHigh 71°F22°CLow 53°F12°CPrecip 0 in0 mmCloud 16%Wind NE 5 mph7 km/hMonday: Mostly clear and warm, with a high of 71°F22°C and morning low of 53°F12°C. Light wind from the NNE around 4 mph7 km/h. Monday Night: Mostly clear, with a low around 54°F12°C. Light wind from the NE around 5 mph8 km/h.
ShowersHigh 73°F23°CLow 54°F12°CPrecip 0.05 in1.2 mm21%Cloud 70%Wind SSE 7 mph11 km/hTuesday: Mostly cloudy and warm, with a high of 73°F23°C and morning low of 54°F12°C. Breezy from the S at 7 to 8 mph11 to 13 km/h. Tuesday Night: Mostly cloudy, with a low around 55°F13°C. Breezy from the SSE at 7 to 9 mph11 to 14 km/h. 21% chance of showers in the evening.

15-Day Forecast

Day High Low Precip Cloud Cover Condition Wind
WednesdaySep 2363°F17°C57°F14°C0 in0.1 mm· 1%74%Partly CloudyNE 10 mph16 km/h
ThursdaySep 2466°F19°C58°F14°C0 in0 mm· —46%Partly CloudyENE 7 mph12 km/h
FridaySep 2565°F18°C57°F14°C0 in0.1 mm· 4%67%Partly CloudyENE 6 mph9 km/h
SaturdaySep 2667°F19°C54°F12°C0 in0 mm· —50%Partly CloudyENE 6 mph9 km/h
SundaySep 2769°F21°C54°F12°C0 in0 mm· —39%ClearNE 5 mph8 km/h
MondaySep 2871°F22°C53°F12°C0 in0 mm· —16%ClearNE 5 mph7 km/h
TuesdaySep 2973°F23°C54°F12°C0.05 in1.2 mm· 21%70%ShowersSSE 7 mph11 km/h
WednesdaySep 3068°F20°C60°F16°C0.29 in7.4 mm· 37%83%Light RainSSW 9 mph15 km/h
ThursdayOct 167°F20°C58°F14°C0.2 in5.1 mm· 26%68%ShowersW 9 mph15 km/h
FridayOct 267°F20°C57°F14°C0.21 in5.4 mm· 26%64%ShowersSSW 9 mph15 km/h
SaturdayOct 367°F20°C57°F14°C0.12 in3 mm· 19%61%ShowersWSW 9 mph15 km/h
SundayOct 466°F19°C55°F13°C0.11 in2.9 mm· 15%54%ShowersW 9 mph15 km/h
MondayOct 564°F18°C53°F12°C0.11 in2.8 mm· 18%51%ShowersWSW 10 mph16 km/h
TuesdayOct 664°F18°C52°F11°C0.15 in3.7 mm· 22%48%ShowersW 10 mph16 km/h
WednesdayOct 763°F17°C51°F11°C0.06 in1.4 mm· 12%45%DrizzleW 10 mph16 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.

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Coordinates: 42.0953°N, 87.9376°W·Elevation: 204m·Timezone: America/Chicago·Population: 16,386