Pennsylvania · NWS PHI office

Chester, PA weather

It is 50°F at Philadelphia, Philadelphia International Airport as of Oct 28, 2:15 AM EDT. Overnight: Patchy Fog, low near 45°F. Forecast from the National Weather Service, issued Oct 27, 4:09 PM EDT.

Updated Oct 28, 2:26 AM EDT (snapshot)

Current conditions

Temperature

50°F

Patchy Fog

Wind

NNE 5 mph

Humidity 82% · dew point 45°F

Pressure · visibility

30.42 inHg

Visibility 10 mi

Observed at Philadelphia, Philadelphia International Airport (KPHL), Oct 28, 2:15 AM EDT. Station readings can lag or be missing.

Alerts for this area

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

Around the NWS PHI forecast area

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

From the alert snapshot of Oct 28, 2026, 2:15 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 Chester (local time)
TimeTempForecastPrecip. chanceWind
Wed 2 AM47°FPatchy Fog0% 0 mph
Wed 3 AM47°FPatchy Fog0% 0 mph
Wed 4 AM46°FPatchy Fog0% 0 mph
Wed 5 AM46°FPatchy Fog0% 0 mph
Wed 6 AM45°FPatchy Fog0% 0 mph
Wed 7 AM46°FPatchy Fog0% 0 mph
Wed 8 AM46°FPatchy Fog0% 0 mph
Wed 9 AM50°FSunny0% 0 mph
Wed 10 AM55°FMostly Sunny0%NE 5 mph
Wed 11 AM59°FMostly Sunny0%E 5 mph
Wed 12 PM61°FMostly Sunny0%E 5 mph
Wed 1 PM63°FMostly Sunny0%SE 5 mph
Wed 2 PM64°FPartly Sunny0%SE 5 mph
Wed 3 PM65°FPartly Sunny0%SE 5 mph
Wed 4 PM65°FMostly Cloudy0%SE 5 mph
Wed 5 PM64°FMostly Cloudy0%SE 5 mph
Wed 6 PM62°FMostly Cloudy0% 0 mph
Wed 7 PM59°FMostly Cloudy0%S 5 mph
Wed 8 PM57°FMostly Cloudy0% 0 mph
Wed 9 PM55°FPartly Cloudy0% 0 mph
Wed 10 PM54°FPartly Cloudy0% 0 mph
Wed 11 PM53°FMostly Clear0% 0 mph
Thu 12 AM53°FMostly Clear0% 0 mph
Thu 1 AM52°FClear0% 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 Chester can differ.

7-day forecast

Overnight

Low 45°F

Patchy fog. Mostly clear, with a low around 45. Northeast wind around 0 mph.

Wednesday

High 67°F·Low 49°F

Patchy fog before 9am. Mostly sunny, with a high near 67. East wind 0 to 5 mph.

Wednesday Night: Partly cloudy, with a low around 49. Southeast wind 0 to 5 mph.

Thursday

High 71°F·Low 55°F

Mostly sunny, with a high near 71. Southwest wind 0 to 5 mph.

Thursday Night: Mostly clear, with a low around 55. Southwest wind around 5 mph.

Friday

High 75°F·Low 48°F

Sunny, with a high near 75.

Friday Night: Mostly clear, with a low around 48.

Saturday

High 67°F·Low 49°F

Mostly sunny, with a high near 67.

Saturday Night: Mostly cloudy, with a low around 49.

Sunday

High 69°F·Low 55°F

Partly sunny, with a high near 69.

Sunday Night: A chance of rain showers after 7pm. Mostly cloudy, with a low around 55. Chance of precipitation is 30%.

Monday

High 69°F·Low 55°F

A chance of rain showers. Mostly cloudy, with a high near 69. Chance of precipitation is 40%.

Monday Night: A chance of rain showers. Mostly cloudy, with a low around 55. Chance of precipitation is 30%.

Tuesday

High 68°F

A chance of rain showers. Partly sunny, with a high near 68.

Nearby cities

Larger cities in the area

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

About this forecast

Forecast office
Chester is served by the National Weather Service PHI forecast office, forecast zone PAZ070, county zone PAC045.
Location used
The Census Bureau's internal point for Chester (39.8456, -75.3719), in Delaware County. Population: 34,052 (2024 estimate), number 15 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/39.8456,-75.3719 (forecast issued Oct 27, 4:09 PM 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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