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Philadelphia Union Weather



Weather Forecast for Chester

Now
Current Weather Conditions
73° F

Wind: 1.01 mph
Humidity: 95%
Clouds: 8%
Pressure: 1016 hPa
Sunrise: 5:41 AM ET
Sunset: 8:31 PM ET
Tomorrow
Tomorrow's Weather Conditions
Chance
T-storms and
Patchy Fog

Showers
Likely then
Chance
T-storms
Fri
Fri's Weather Conditions
Showers
Likely


Chance
T-storms then
Chance
Showers


Extended Forecast
 
National Weather Service Forecast for: Chester PA
Issued by: National Weather Service Philadelphia, PA
Updated: 4:12 am EDT Jul 9, 2025
 
Overnight

Overnight: A slight chance of showers.  Patchy fog.  Otherwise, mostly cloudy, with a low around 72. Calm wind.  Chance of precipitation is 20%.
Low: 72 °F
Wednesday

Wednesday: A slight chance of showers, then a chance of showers and thunderstorms after 11am.  Patchy fog before 8am.  Otherwise, partly sunny, with a high near 90. Calm wind becoming west around 5 mph in the afternoon.  Chance of precipitation is 40%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
High: 90 °F
Wednesday
Night
Wednesday Night: A chance of showers and thunderstorms before 10pm, then showers likely and possibly a thunderstorm between 10pm and midnight, then a chance of showers and thunderstorms after midnight.  Mostly cloudy, with a low around 72. Southeast wind around 5 mph becoming calm.  Chance of precipitation is 70%. New rainfall amounts between a half and three quarters of an inch possible.
Low: 72 °F
Thursday

Thursday: Showers likely and possibly a thunderstorm.  Mostly cloudy, with a high near 85. Calm wind becoming south around 5 mph in the afternoon.  Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
High: 85 °F
Thursday
Night
Thursday Night: A chance of showers and thunderstorms before 2am, then a slight chance of showers.  Mostly cloudy, with a low around 72. South wind around 5 mph becoming calm.  Chance of precipitation is 40%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Low: 72 °F
Friday

Friday: A chance of showers, with thunderstorms also possible after 11am.  Mostly cloudy, with a high near 86. Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
High: 86 °F
Friday
Night
Friday Night: A chance of thunderstorms before 8pm.  Mostly cloudy, with a low around 73. Chance of precipitation is 30%.
Low: 73 °F
Saturday

Saturday: A chance of showers and thunderstorms after 2pm.  Partly sunny, with a high near 88. Chance of precipitation is 40%.
High: 88 °F
Saturday
Night
Saturday Night: A chance of showers and thunderstorms before 8pm.  Partly cloudy, with a low around 72. Chance of precipitation is 30%.
Low: 72 °F
Slight Chance
Showers and
Patchy Fog
Chance
T-storms and
Patchy Fog
Showers
Likely then
Chance
T-storms
Showers
Likely

Chance
T-storms then
Chance
Showers
Chance
Showers then
Chance
T-storms
Chance
T-storms then
Mostly Cloudy
Partly Sunny
then Chance
T-storms
Chance
T-storms then
Partly Cloudy

Flood Watch


Overnight
 
A slight chance of showers. Patchy fog. Otherwise, mostly cloudy, with a low around 72. Calm wind. Chance of precipitation is 20%.
Wednesday
 
A slight chance of showers, then a chance of showers and thunderstorms after 11am. Patchy fog before 8am. Otherwise, partly sunny, with a high near 90. Calm wind becoming west around 5 mph in the afternoon. Chance of precipitation is 40%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
 
A chance of showers and thunderstorms before 10pm, then showers likely and possibly a thunderstorm between 10pm and midnight, then a chance of showers and thunderstorms after midnight. Mostly cloudy, with a low around 72. Southeast wind around 5 mph becoming calm. Chance of precipitation is 70%. New rainfall amounts between a half and three quarters of an inch possible.
Thursday
 
Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 85. Calm wind becoming south around 5 mph in the afternoon. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
Thursday Night
 
A chance of showers and thunderstorms before 2am, then a slight chance of showers. Mostly cloudy, with a low around 72. South wind around 5 mph becoming calm. Chance of precipitation is 40%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Friday
 
A chance of showers, with thunderstorms also possible after 11am. Mostly cloudy, with a high near 86. Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Friday Night
 
A chance of thunderstorms before 8pm. Mostly cloudy, with a low around 73. Chance of precipitation is 30%.
Saturday
 
A chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 88. Chance of precipitation is 40%.
Saturday Night
 
A chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 72. Chance of precipitation is 30%.
Sunday
 
A chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 89. Chance of precipitation is 40%.
Sunday Night
 
A chance of showers and thunderstorms. Mostly cloudy, with a low around 71. Chance of precipitation is 50%.
Monday
 
A chance of showers and thunderstorms. Partly sunny, with a high near 88. Chance of precipitation is 40%.
Monday Night
 
A chance of thunderstorms. Partly cloudy, with a low around 71. Chance of precipitation is 30%.
Tuesday
 
A chance of showers and thunderstorms. Mostly sunny, with a high near 89. Chance of precipitation is 30%.

Forecast from NOAA-NWS for Chester.



 


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