Current Conditions

West Chester, Pennsylvania

78°F25°C
Showers

Wind

SW 6 mph10 km/h

Humidity

67%

Cloud Cover

80%

As of Wednesday, August 12, 2026 at 11:25 PM EDT

Today's Outlook

Night

Mostly cloudy, with a low around 73°F23°C. Light wind from the W around 5 mph8 km/h. 51% chance of light rain overnight.

7-Day Forecast

DayConditionHigh (°F)Low (°F)Precip (mm)Cloud Cover (%)Wind (mph)
ShowersHigh 89°F32°CLow 73°F23°CPrecip 0.07 in1.8 mm51%Cloud 59%Wind WNW 6 mph9 km/hThursday: Partly cloudy and hot, with a high of 89°F32°C and morning low of 75°F24°C. Breezy from the NW at 6 to 7 mph10 to 12 km/h. Humid. Thursday Night: Mostly cloudy, with a low around 73°F23°C. Light wind from the W around 5 mph8 km/h. 51% chance of light rain overnight.
Partly CloudyHigh 91°F33°CLow 72°F22°CPrecip 0 in0 mmCloud 69%Wind NNW 4 mph7 km/hFriday: Mostly cloudy and hot, with a high of 91°F33°C and morning low of 75°F24°C. Light wind from the NNW around 4 mph7 km/h. Friday Night: Mostly cloudy, with a low around 72°F22°C. Light wind from the NNW around 5 mph7 km/h.
DrizzleHigh 88°F31°CLow 70°F21°CPrecip 0.02 in0.4 mm12%Cloud 52%Wind ENE 5 mph8 km/hSaturday: Partly cloudy and hot, with a high of 88°F31°C and morning low of 73°F23°C. Light wind from the NE around 4 mph7 km/h. 12% chance of drizzle in the afternoon. Saturday Night: Mostly cloudy, with a low around 70°F21°C. Light wind from the E around 5 mph9 km/h.
RainHigh 80°F27°CLow 72°F22°CPrecip 0.44 in11.1 mm73%Cloud 88%Wind SSE 7 mph11 km/hSunday: Overcast and warm, with a high of 80°F27°C and morning low of 74°F23°C. Breezy from the SSE at 7 to 8 mph12 to 13 km/h. 73% chance of rain throughout the day. Heavy, humid air. Sunday Night: Overcast, with a low around 72°F22°C. Breezy from the SSE at 6 to 7 mph10 to 11 km/h. 51% chance of light rain throughout the night.
ShowersHigh 86°F30°CFeels 90°F32°CLow 74°F23°CPrecip 0.16 in4.1 mm36%Cloud 64%Wind NW 7 mph11 km/hMonday: Mostly cloudy and hot, with a high of 86°F30°C and morning low of 76°F24°C. Breezy from the NW at 7 to 8 mph12 to 13 km/h. 31% chance of showers throughout the day. Humid. Monday Night: Mostly cloudy, with a low around 74°F23°C. Breezy from the NW at 6 to 7 mph10 to 11 km/h. 36% chance of showers throughout the night.
Partly CloudyHigh 84°F29°CLow 69°F21°CPrecip 0.02 in0.5 mm9%Cloud 43%Wind N 5 mph8 km/hTuesday: Mostly cloudy and warm, with a high of 84°F29°C and morning low of 71°F21°C. Light wind from the N around 5 mph8 km/h. Tuesday Night: Partly cloudy, with a low around 69°F21°C. Light wind from the N around 5 mph8 km/h.
DrizzleHigh 86°F30°CLow 67°F19°CPrecip 0.04 in0.9 mm14%Cloud 49%Wind SSW 5 mph8 km/hWednesday: Mostly cloudy and hot, with a high of 86°F30°C and morning low of 70°F21°C. Light wind from the SW around 5 mph8 km/h. 14% chance of drizzle throughout the day. Wednesday Night: Partly cloudy, with a low around 67°F19°C. Breezy from the S at 5 to 7 mph8 to 11 km/h.

15-Day Forecast

Day High Low Precip Cloud Cover Condition Wind
ThursdayAug 1389°F32°C73°F23°C0.07 in1.8 mm· 51%59%ShowersWNW 6 mph9 km/h
FridayAug 1491°F33°C72°F22°C0 in0 mm· —69%Partly CloudyNNW 4 mph7 km/h
SaturdayAug 1588°F31°C70°F21°C0.02 in0.4 mm· 12%52%DrizzleENE 5 mph8 km/h
SundayAug 1680°F27°C72°F22°C0.44 in11.1 mm· 73%88%RainSSE 7 mph11 km/h
MondayAug 1786°F30°C
Feels 90°F32°C
74°F23°C0.16 in4.1 mm· 36%64%ShowersNW 7 mph11 km/h
TuesdayAug 1884°F29°C69°F21°C0.02 in0.5 mm· 9%43%Partly CloudyN 5 mph8 km/h
WednesdayAug 1986°F30°C67°F19°C0.04 in0.9 mm· 14%49%DrizzleSSW 5 mph8 km/h
ThursdayAug 2089°F31°C
Feels 92°F33°C
73°F23°C0.08 in2 mm· 25%60%ShowersWSW 7 mph11 km/h
FridayAug 2185°F29°C71°F21°C0.1 in2.5 mm· 25%52%ShowersNW 6 mph10 km/h
SaturdayAug 2284°F29°C68°F20°C0.16 in4.1 mm· 23%53%ShowersWNW 5 mph9 km/h
SundayAug 2385°F30°C68°F20°C0.08 in2.1 mm· 18%48%DrizzleW 5 mph9 km/h
MondayAug 2484°F29°C68°F20°C0.08 in2.1 mm· 16%46%DrizzleWNW 5 mph9 km/h
TuesdayAug 2584°F29°C66°F19°C0.08 in2 mm· 16%41%DrizzleWNW 5 mph9 km/h
WednesdayAug 2683°F29°C66°F19°C0.08 in2 mm· 20%41%ShowersWNW 5 mph9 km/h
ThursdayAug 2782°F28°C66°F19°C0.08 in2.1 mm· 15%46%DrizzleNW 5 mph9 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: 39.9610°N, 75.6080°W·Elevation: 140m·Timezone: America/New_York·Population: 19,842