Pennsylvania · NWS PHI office

West Chester, PA weather

It is 43°F and fog/mist at Chester County Airport as of Oct 28, 4:55 AM EDT. Overnight: Partly Cloudy, low near 42°F. Forecast from the National Weather Service, issued Oct 28, 4:08 AM EDT.

Updated Oct 28, 5:29 AM EDT (snapshot)

Current conditions

Temperature

43°F

Fog/Mist

Wind

Calm

Humidity 100% · dew point 43°F

Pressure · visibility

30.40 inHg

Visibility 5 mi

Observed at Chester County Airport (KMQS), Oct 28, 4:55 AM EDT. Station readings can lag or be missing.

Alerts for this area

No active NWS alerts cover the West Chester forecast zone right now.

Around the NWS PHI forecast area

No active alerts in zones served by the PHI office near West Chester.

From the alert snapshot of Oct 28, 2026, 5:12 AM EDT. No alerts are active anywhere in Pennsylvania.

For official warnings, check weather.gov and your local authorities. OpenForecast repeats National Weather Service alerts and may be delayed or incomplete. Follow instructions from emergency officials.

Next 24 hours

Hourly forecast for West Chester (local time)
TimeTempForecastPrecip. chanceWind
Wed 7 AM42°FPatchy Fog0% 0 mph
Wed 8 AM42°FPatchy Fog0% 0 mph
Wed 9 AM48°FMostly Sunny0% 0 mph
Wed 10 AM53°FMostly Sunny0%E 5 mph
Wed 11 AM57°FMostly Sunny0%E 5 mph
Wed 12 PM59°FMostly Sunny0%SE 5 mph
Wed 1 PM61°FMostly Sunny0%SE 5 mph
Wed 2 PM63°FPartly Sunny0%SE 5 mph
Wed 3 PM63°FMostly Cloudy0%SE 5 mph
Wed 4 PM63°FMostly Cloudy0%SE 5 mph
Wed 5 PM62°FMostly Cloudy0%SE 5 mph
Wed 6 PM60°FMostly Cloudy0% 0 mph
Wed 7 PM57°FMostly Cloudy0% 0 mph
Wed 8 PM55°FMostly Cloudy0% 0 mph
Wed 9 PM53°FPartly Cloudy0% 0 mph
Wed 10 PM52°FMostly Clear0% 0 mph
Wed 11 PM51°FMostly Clear0% 0 mph
Thu 12 AM51°FMostly Clear0% 0 mph
Thu 1 AM50°FMostly Clear0% 0 mph
Thu 2 AM49°FMostly Clear0% 0 mph
Thu 3 AM49°FPartly Cloudy0% 0 mph
Thu 4 AM48°FPartly Cloudy0% 0 mph
Thu 5 AM48°FPartly Cloudy0% 0 mph
Thu 6 AM48°FPartly Sunny0% 0 mph

Hourly values come from the NWS gridded forecast for the 2.5 km grid square that covers the city's center point. Conditions elsewhere in West Chester can differ.

7-day forecast

Overnight

Low 42°F

Partly cloudy, with a low around 42. Northeast wind around 0 mph.

Wednesday

High 65°F·Low 45°F

Partly sunny, with a high near 65. East wind 0 to 5 mph.

Wednesday Night: Partly cloudy, with a low around 45. Southeast wind around 0 mph.

Thursday

High 69°F·Low 52°F

Mostly sunny, with a high near 69. West wind 0 to 5 mph.

Thursday Night: Mostly clear, with a low around 52. Southwest wind around 5 mph.

Friday

High 71°F·Low 44°F

Sunny, with a high near 71.

Friday Night: Mostly clear, with a low around 44.

Saturday

High 63°F·Low 44°F

Mostly sunny, with a high near 63.

Saturday Night: Mostly cloudy, with a low around 44.

Sunday

High 67°F·Low 49°F

Partly sunny, with a high near 67.

Sunday Night: A slight chance of rain showers after 1am. Mostly cloudy, with a low around 49.

Monday

High 66°F·Low 51°F

A chance of rain showers. Mostly cloudy, with a high near 66. Chance of precipitation is 30%.

Monday Night: A chance of rain showers. Mostly cloudy, with a low around 51. Chance of precipitation is 40%.

Tuesday

High 66°F

A chance of rain showers. Mostly cloudy, with a high near 66.

Nearby cities

Larger cities in the area

Other cities in Chester County

See every city we cover in Pennsylvania, or check all active alerts.

About this forecast

Forecast office
West Chester is served by the National Weather Service PHI forecast office, forecast zone PAZ102, county zone PAC029.
Location used
The Census Bureau's internal point for West Chester (39.9599, -75.6054), in Chester County. Population: 22,758 (2024 estimate), number 25 of the 30 Pennsylvania cities on this site.
Radar
Nearest NWS radar: KDIX. View it on radar.weather.gov.

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Sources

  • Forecast, hourly forecast, observations and alerts: National Weather Service API, api.weather.gov/points/39.9599,-75.6054 (forecast issued Oct 28, 4:08 AM EDT).
  • Official forecast page: forecast.weather.gov.
  • City location and population: U.S. Census Bureau, Vintage 2024 population estimates and 2024 Gazetteer files.
  • Snapshot taken Oct 28, 2026. The NWS and Census Bureau do not endorse OpenForecast.

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