Current Conditions

Westchester, Illinois

80°F27°C
Rain

Wind

S 8 mph13 km/h

Humidity

53%

Cloud Cover

48%

As of Tuesday, September 8, 2026 at 7:52 PM CDT

Today's Outlook

Night

Mostly cloudy, with a low around 73°F23°C. Breezy from the SW at 7 to 9 mph11 to 14 km/h. 20% chance of drizzle before dawn.

7-Day Forecast

DayConditionHigh (°F)Low (°F)Precip (mm)Cloud Cover (%)Wind (mph)
RainHigh 79°F26°CLow 72°F22°CPrecip 0.26 in6.6 mm97%Cloud 83%Wind WSW 7 mph12 km/hWednesday: Overcast and warm, with a high of 79°F26°C and morning low of 72°F22°C. Breezy from the WSW at 8 to 9 mph13 to 14 km/h. 97% chance of rain throughout the day. Humid. Wednesday Night: Mostly cloudy, with a low around 73°F23°C. Breezy from the SW at 7 to 9 mph11 to 14 km/h. 20% chance of drizzle before dawn.
Partly CloudyHigh 76°F24°CLow 65°F19°CPrecip 0.02 in0.4 mm9%Cloud 72%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 12 km/h. Thursday Night: Mostly cloudy, with a low around 65°F19°C. Light wind from the N around 6 mph10 km/h.
ClearHigh 80°F27°CLow 61°F16°CPrecip 0 in0.1 mm3%Cloud 16%Wind SE 5 mph9 km/hFriday: Mostly clear and warm, with a high of 80°F27°C and morning low of 61°F16°C. Light wind from the SE around 6 mph9 km/h. Friday Night: Mostly clear, with a low around 62°F17°C. Breezy from the ESE at 5 to 7 mph9 to 11 km/h.
DrizzleHigh 84°F29°CFeels 87°F30°CLow 66°F19°CPrecip 0.03 in0.8 mm20%Cloud 47%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 9 mph13 to 15 km/h. 15% chance of drizzle in the afternoon. Humid. Saturday Night: Partly cloudy, with a low around 67°F19°C. Breezy from the SSW at 6 to 7 mph10 to 11 km/h. 20% chance of drizzle in the evening.
DrizzleHigh 76°F24°CLow 65°F18°CPrecip 0.05 in1.3 mm14%Cloud 35%Wind N 7 mph12 km/hSunday: Partly cloudy and warm, with a high of 76°F24°C and morning low of 65°F18°C. Breezy from the N at 8 mph12 km/h. 12% chance of drizzle throughout the day. Sunday Night: Partly cloudy, with a low around 65°F19°C. Breezy from the N at 7 to 8 mph11 to 12 km/h. 14% chance of drizzle throughout the night.
ShowersHigh 79°F26°CLow 63°F17°CPrecip 0.12 in3.1 mm21%Cloud 56%Wind SE 10 mph16 km/hMonday: Mostly cloudy and warm, with a high of 79°F26°C and morning low of 63°F17°C. Breezy from the SE at 10 to 12 mph16 to 19 km/h. 21% chance of showers throughout the day. Monday Night: Partly cloudy, with a low around 63°F17°C. Breezy from the SSE at 10 to 13 mph16 to 22 km/h. 11% chance of drizzle throughout the night.
ShowersHigh 82°F28°CLow 70°F21°CPrecip 0.11 in2.9 mm26%Cloud 68%Wind SW 10 mph17 km/hTuesday: Mostly cloudy and warm, with a high of 82°F28°C and morning low of 71°F21°C. Breezy from the SW at 11 mph17 km/h. 18% chance of drizzle throughout the day. Tuesday Night: Mostly cloudy, with a low around 70°F21°C. Breezy from the SSW at 10 to 14 mph16 to 22 km/h. 26% chance of showers throughout the night.

15-Day Forecast

Day High Low Precip Cloud Cover Condition Wind
WednesdaySep 979°F26°C72°F22°C0.26 in6.6 mm· 97%83%RainWSW 7 mph12 km/h
ThursdaySep 1076°F24°C65°F19°C0.02 in0.4 mm· 9%72%Partly CloudyNNE 6 mph10 km/h
FridaySep 1180°F27°C61°F16°C0 in0.1 mm· 3%16%ClearSE 5 mph9 km/h
SaturdaySep 1284°F29°C
Feels 87°F30°C
66°F19°C0.03 in0.8 mm· 20%47%DrizzleSW 7 mph11 km/h
SundaySep 1376°F24°C65°F18°C0.05 in1.3 mm· 14%35%DrizzleN 7 mph12 km/h
MondaySep 1479°F26°C63°F17°C0.12 in3.1 mm· 21%56%ShowersSE 10 mph16 km/h
TuesdaySep 1582°F28°C70°F21°C0.11 in2.9 mm· 26%68%ShowersSW 10 mph17 km/h
WednesdaySep 1675°F24°C65°F18°C0.22 in5.6 mm· 28%61%ShowersENE 7 mph11 km/h
ThursdaySep 1781°F27°C67°F20°C0.18 in4.6 mm· 27%57%ShowersSSW 9 mph14 km/h
FridaySep 1874°F23°C65°F18°C0.17 in4.2 mm· 20%52%ShowersW 9 mph15 km/h
SaturdaySep 1971°F22°C59°F15°C0.11 in2.9 mm· 18%52%DrizzleNW 8 mph13 km/h
SundaySep 2069°F21°C57°F14°C0.11 in2.8 mm· 16%53%ShowersNNE 9 mph14 km/h
MondaySep 2168°F20°C56°F13°C0.12 in3.1 mm· 17%55%ShowersENE 8 mph14 km/h
TuesdaySep 2268°F20°C56°F13°C0.13 in3.2 mm· 18%64%ShowersE 8 mph13 km/h
WednesdaySep 2369°F21°C56°F14°C0.07 in1.9 mm· 18%60%DrizzleSE 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