Current Conditions

Westchester, Illinois

74°F24°C
Rain

Wind

SSW 7 mph12 km/h

Humidity

66%

Cloud Cover

96%

As of Wednesday, September 9, 2026 at 1:01 AM CDT

Today's Outlook

Day

Overcast and warm, with a high of 80°F26°C and morning low of 72°F22°C. Breezy from the WSW at 9 mph14 km/h. 99% chance of rain throughout the day. Humid.

Night

Mostly cloudy, with a low around 73°F23°C. Breezy from the SW at 7 mph11 km/h. 35% chance of drizzle before dawn.

7-Day Forecast

DayConditionHigh (°F)Low (°F)Precip (mm)Cloud Cover (%)Wind (mph)
RainHigh 80°F26°CLow 72°F22°CPrecip 0.35 in8.8 mm99%Cloud 87%Wind WSW 8 mph12 km/hWednesday: Overcast and warm, with a high of 80°F26°C and morning low of 72°F22°C. Breezy from the WSW at 9 mph14 km/h. 99% chance of rain throughout the day. Humid. Wednesday Night: Mostly cloudy, with a low around 73°F23°C. Breezy from the SW at 7 mph11 km/h. 35% chance of drizzle before dawn.
Partly CloudyHigh 76°F24°CLow 65°F18°CPrecip 0 in0 mmCloud 73%Wind NNE 6 mph10 km/hThursday: Overcast and warm, with a high of 76°F24°C and morning low of 68°F20°C. Breezy from the NNE at 6 to 7 mph10 to 11 km/h. Thursday Night: Mostly cloudy, with a low around 65°F18°C. Breezy from the NNW at 6 to 7 mph10 to 11 km/h.
ClearHigh 80°F27°CLow 60°F16°CPrecip 0 in0.1 mm2%Cloud 19%Wind SE 5 mph9 km/hFriday: Mostly clear and warm, with a high of 80°F27°C and morning low of 60°F16°C. Light wind from the SE around 5 mph9 km/h. Friday Night: Mostly clear, with a low around 61°F16°C. Breezy from the SE at 5 to 7 mph8 to 11 km/h.
DrizzleHigh 84°F29°CLow 66°F19°CPrecip 0.03 in0.8 mm18%Cloud 49%Wind SW 7 mph11 km/hSaturday: Mostly cloudy and warm, with a high of 84°F29°C and morning low of 66°F19°C. Breezy from the SW at 8 to 10 mph13 to 15 km/h. 13% chance of drizzle in the afternoon. Humid. Saturday Night: Partly cloudy, with a low around 66°F19°C. Breezy from the SSW at 6 to 7 mph10 to 11 km/h. 18% chance of drizzle in the evening.
DrizzleHigh 75°F24°CLow 64°F18°CPrecip 0.04 in1.1 mm10%Cloud 37%Wind N 7 mph12 km/hSunday: Partly cloudy and warm, with a high of 75°F24°C and morning low of 65°F18°C. Breezy from the N at 8 to 9 mph13 to 14 km/h. Sunday Night: Partly cloudy, with a low around 64°F18°C. Breezy from the N at 7 to 8 mph11 to 12 km/h. 10% chance of drizzle throughout the night.
ShowersHigh 78°F25°CLow 61°F16°CPrecip 0.1 in2.6 mm21%Cloud 57%Wind SE 9 mph15 km/hMonday: Mostly cloudy and warm, with a high of 78°F25°C and morning low of 61°F16°C. Breezy from the SE at 9 to 12 mph15 to 19 km/h. 21% chance of showers throughout the day. Monday Night: Partly cloudy, with a low around 62°F16°C. Breezy from the SE at 10 to 13 mph15 to 21 km/h. 13% chance of drizzle throughout the night.
Light RainHigh 82°F28°CLow 70°F21°CPrecip 0.17 in4.3 mm32%Cloud 72%Wind SW 10 mph17 km/hTuesday: Mostly cloudy and warm, with a high of 82°F28°C and morning low of 70°F21°C. Breezy from the SW at 11 mph17 km/h. 27% chance of light rain throughout the day. Tuesday Night: Mostly cloudy, with a low around 72°F22°C. Breezy from the SSW at 10 to 14 mph16 to 22 km/h. 32% chance of light rain throughout the night.

15-Day Forecast

Day High Low Precip Cloud Cover Condition Wind
WednesdaySep 980°F26°C72°F22°C0.35 in8.8 mm· 99%87%RainWSW 8 mph12 km/h
ThursdaySep 1076°F24°C65°F18°C0 in0 mm· —73%Partly CloudyNNE 6 mph10 km/h
FridaySep 1180°F27°C60°F16°C0 in0.1 mm· 2%19%ClearSE 5 mph9 km/h
SaturdaySep 1284°F29°C66°F19°C0.03 in0.8 mm· 18%49%DrizzleSW 7 mph11 km/h
SundaySep 1375°F24°C64°F18°C0.04 in1.1 mm· 10%37%DrizzleN 7 mph12 km/h
MondaySep 1478°F25°C61°F16°C0.1 in2.6 mm· 21%57%ShowersSE 9 mph15 km/h
TuesdaySep 1582°F28°C70°F21°C0.17 in4.3 mm· 32%72%Light RainSW 10 mph17 km/h
WednesdaySep 1677°F25°C67°F19°C0.26 in6.7 mm· 38%71%Light RainE 7 mph11 km/h
ThursdaySep 1782°F28°C69°F21°C0.2 in5 mm· 22%53%ShowersSSW 9 mph15 km/h
FridaySep 1876°F25°C66°F19°C0.17 in4.3 mm· 21%48%ShowersW 9 mph15 km/h
SaturdaySep 1972°F22°C60°F16°C0.2 in5.1 mm· 27%55%ShowersWNW 9 mph14 km/h
SundaySep 2067°F20°C57°F14°C0.14 in3.6 mm· 21%53%ShowersN 9 mph14 km/h
MondaySep 2167°F20°C55°F13°C0.09 in2.4 mm· 12%52%DrizzleNE 7 mph12 km/h
TuesdaySep 2269°F21°C55°F13°C0.09 in2.2 mm· 13%55%DrizzleE 8 mph13 km/h
WednesdaySep 2369°F21°C56°F13°C0.13 in3.4 mm· 18%58%ShowersESE 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.

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Coordinates: 41.8506°N, 87.8820°W·Elevation: 194m·Timezone: America/Chicago·Population: 16,729