National Weather Service Forecast for: Chester PA
Issued by: National Weather Service Philadelphia, PA
Updated: 4:08 am EDT May 26, 2026
 
Today

Today: Mostly cloudy, with a high near 80. Northeast wind around 5 mph becoming southwest in the afternoon.
Mostly Cloudy

 Tonight

Tonight: Showers likely, mainly after 5am. Patchy fog after 5am. Otherwise, mostly cloudy, with a low around 63. South wind around 5 mph becoming calm in the evening. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Mostly Cloudy
then Showers
Likely and
Patchy Fog
 Wednesday

Wednesday: Showers likely, mainly before 1pm. Patchy fog between 7am and 8am. Otherwise, mostly cloudy, with a high near 81. Calm wind becoming west around 5 mph in the afternoon. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.
Showers
Likely and
Patchy Fog
 Wednesday
Night
Wednesday Night: Cloudy, then gradually becoming partly cloudy, with a low around 63. West wind around 5 mph becoming calm.
Decreasing
Clouds

 Thursday

Thursday: Sunny, with a high near 79. North wind 5 to 10 mph, with gusts as high as 20 mph.
Sunny

 Thursday
Night
Thursday Night: Mostly clear, with a low around 56.
Mostly Clear

 Friday

Friday: Sunny, with a high near 76.
Sunny

 Friday
Night
Friday Night: Mostly clear, with a low around 56.
Mostly Clear

 Saturday

Saturday: Sunny, with a high near 74.
Sunny
Hi 80 °F Lo 63 °F Hi 81 °F Lo 63 °F Hi 79 °F Lo 56 °F Hi 76 °F Lo 56 °F Hi 74 °F

 

Today
 
 Mostly cloudy, with a high near 80. Northeast wind around 5 mph becoming southwest in the afternoon.
Tonight
 
 Showers likely, mainly after 5am. Patchy fog after 5am. Otherwise, mostly cloudy, with a low around 63. South wind around 5 mph becoming calm in the evening. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday
 
 Showers likely, mainly before 1pm. Patchy fog between 7am and 8am. Otherwise, mostly cloudy, with a high near 81. Calm wind becoming west around 5 mph in the afternoon. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.
Wednesday Night
 
 Cloudy, then gradually becoming partly cloudy, with a low around 63. West wind around 5 mph becoming calm.
Thursday
 
 Sunny, with a high near 79. North wind 5 to 10 mph, with gusts as high as 20 mph.
Thursday Night
 
 Mostly clear, with a low around 56.
Friday
 
 Sunny, with a high near 76.
Friday Night
 
 Mostly clear, with a low around 56.
Saturday
 
 Sunny, with a high near 74.
Saturday Night
 
 Partly cloudy, with a low around 53.
Sunday
 
 Mostly sunny, with a high near 73.
Sunday Night
 
 Partly cloudy, with a low around 55.
Monday
 
 Mostly sunny, with a high near 75.

 

Forecast from NOAA-NWS for Chester PA.