National Weather Service Forecast for: Chesterbrook PA
Issued by: National Weather Service Philadelphia, PA
Updated: 4:07 am EDT Jun 22, 2026
 
Today

Today: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 3pm. Some of the storms could be severe and produce heavy rainfall. High near 82. Northeast wind 5 to 10 mph becoming south in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Chance
Showers then
Severe
T-Storms
 Tonight

Tonight: Showers and thunderstorms before 2am, then showers likely. Some of the storms could be severe and produce heavy rainfall. Low around 66. Southeast wind 5 to 10 mph becoming west after midnight. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Severe
T-Storms
then Heavy
Rain
 Tuesday

Tuesday: A chance of showers, mainly between 10am and 11am. Cloudy, then gradually becoming mostly sunny, with a high near 78. North wind 10 to 15 mph. Chance of precipitation is 30%. New precipitation amounts between a tenth and quarter of an inch possible.
Chance
Showers

 Tuesday
Night
Tuesday Night: Mostly clear, with a low around 61. Northwest wind around 10 mph.
Mostly Clear

 Wednesday

Wednesday: Sunny, with a high near 82. Northwest wind 5 to 10 mph.
Sunny

 Wednesday
Night
Wednesday Night: Mostly clear, with a low around 63.
Mostly Clear

 Thursday

Thursday: A chance of showers after 2pm. Mostly sunny, with a high near 87. Chance of precipitation is 30%.
Mostly Sunny
then Chance
Showers
 Thursday
Night
Thursday Night: A chance of showers before 8pm, then a chance of showers and thunderstorms between 8pm and 2am, then a chance of showers after 2am. Mostly cloudy, with a low around 65. Chance of precipitation is 50%.
Chance
T-storms

 Friday

Friday: A chance of showers, with thunderstorms also possible after 2pm. Partly sunny, with a high near 83. Chance of precipitation is 50%.
Chance
Showers then
Chance
T-storms
Hi 82 °F Lo 66 °F Hi 78 °F Lo 61 °F Hi 82 °F Lo 63 °F Hi 87 °F Lo 65 °F Hi 83 °F

Flood Watch
 

Today
 
 A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 3pm. Some of the storms could be severe and produce heavy rainfall. High near 82. Northeast wind 5 to 10 mph becoming south in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Tonight
 
 Showers and thunderstorms before 2am, then showers likely. Some of the storms could be severe and produce heavy rainfall. Low around 66. Southeast wind 5 to 10 mph becoming west after midnight. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Tuesday
 
 A chance of showers, mainly between 10am and 11am. Cloudy, then gradually becoming mostly sunny, with a high near 78. North wind 10 to 15 mph. Chance of precipitation is 30%. New precipitation amounts between a tenth and quarter of an inch possible.
Tuesday Night
 
 Mostly clear, with a low around 61. Northwest wind around 10 mph.
Wednesday
 
 Sunny, with a high near 82. Northwest wind 5 to 10 mph.
Wednesday Night
 
 Mostly clear, with a low around 63.
Thursday
 
 A chance of showers after 2pm. Mostly sunny, with a high near 87. Chance of precipitation is 30%.
Thursday Night
 
 A chance of showers before 8pm, then a chance of showers and thunderstorms between 8pm and 2am, then a chance of showers after 2am. Mostly cloudy, with a low around 65. Chance of precipitation is 50%.
Friday
 
 A chance of showers, with thunderstorms also possible after 2pm. Partly sunny, with a high near 83. Chance of precipitation is 50%.
Friday Night
 
 A chance of showers and thunderstorms before 2am. Mostly cloudy, with a low around 65. Chance of precipitation is 40%.
Saturday
 
 Mostly sunny, with a high near 82.
Saturday Night
 
 Partly cloudy, with a low around 65.
Sunday
 
 Mostly sunny, with a high near 83.

 

Forecast from NOAA-NWS for Chesterbrook PA.