NWS Forecast for Chester PA

National Weather Service Forecast for: Chester PA
Issued by: National Weather Service Philadelphia, PA

Updated: 4:10 pm EDT Apr 5, 2026

Overnight Mostly Clear	Monday Increasing Clouds	Monday Night Partly Cloudy	Tuesday Sunny	Tuesday Night Mostly Clear then Patchy Frost	Wednesday Patchy Frost then Sunny	Wednesday Night Mostly Clear	Thursday Mostly Sunny	Thursday Night Partly Cloudy
Lo 40 °F	Hi 58 °F	Lo 40 °F	Hi 52 °F	Lo 30 °F	Hi 54 °F	Lo 34 °F	Hi 61 °F	Lo 43 °F

Overnight	Mostly clear, with a low around 40. West wind around 5 mph.
Monday	Increasing clouds, with a high near 58. West wind 5 to 10 mph.
Monday Night	Partly cloudy, with a low around 40. West wind around 5 mph.
Tuesday	Sunny, with a high near 52. Northwest wind 10 to 15 mph, with gusts as high as 30 mph.
Tuesday Night	Patchy frost after 2am. Otherwise, clear, with a low around 30. North wind 5 to 10 mph.
Wednesday	Patchy frost before 8am. Otherwise, sunny, with a high near 54.
Wednesday Night	Mostly clear, with a low around 34.
Thursday	Mostly sunny, with a high near 61.
Thursday Night	Partly cloudy, with a low around 43.
Friday	Mostly sunny, with a high near 71.
Friday Night	Partly cloudy, with a low around 51.
Saturday	Mostly sunny, with a high near 75.
Saturday Night	Mostly cloudy, with a low around 52.
Sunday	Partly sunny, with a high near 73.

Forecast from NOAA-NWS for Chester PA.