National Weather Service Forecast for: Norristown PA
Issued by: National Weather Service Philadelphia, PA
Updated: 4:10 pm EDT Mar 19, 2026
 
Tonight

Tonight: Partly cloudy, with a low around 34. Southwest wind around 5 mph becoming calm in the evening.
Partly Cloudy

 Friday

Friday: Increasing clouds, with a high near 62. Light and variable wind becoming south 10 to 15 mph in the morning. Winds could gust as high as 30 mph.
Increasing
Clouds

 Friday
Night
Friday Night: Showers likely, mainly between 8pm and 2am. Cloudy, then gradually becoming partly cloudy, with a low around 45. Southwest wind 5 to 15 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.
Showers
Likely

 Saturday

Saturday: Sunny, with a high near 63. Northwest wind around 5 mph.
Sunny

 Saturday
Night
Saturday Night: Mostly cloudy, with a low around 44. Calm wind.
Mostly Cloudy

 Sunday

Sunday: Partly sunny, with a high near 67.
Partly Sunny

 Sunday
Night
Sunday Night: Showers likely, mainly after 2am. Mostly cloudy, with a low around 46. Chance of precipitation is 60%.
Showers
Likely

 Monday

Monday: Showers likely before 8am. Mostly sunny, with a high near 57. Breezy. Chance of precipitation is 60%.
Showers
Likely then
Mostly Sunny
and Breezy
 Monday
Night
Monday Night: Mostly clear, with a low around 29.
Mostly Clear
Lo 34 °F Hi 62 °F Lo 45 °F Hi 63 °F Lo 44 °F Hi 67 °F Lo 46 °F Hi 57 °F Lo 29 °F

 

Tonight
 
 Partly cloudy, with a low around 34. Southwest wind around 5 mph becoming calm in the evening.
Friday
 
 Increasing clouds, with a high near 62. Light and variable wind becoming south 10 to 15 mph in the morning. Winds could gust as high as 30 mph.
Friday Night
 
 Showers likely, mainly between 8pm and 2am. Cloudy, then gradually becoming partly cloudy, with a low around 45. Southwest wind 5 to 15 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.
Saturday
 
 Sunny, with a high near 63. Northwest wind around 5 mph.
Saturday Night
 
 Mostly cloudy, with a low around 44. Calm wind.
Sunday
 
 Partly sunny, with a high near 67.
Sunday Night
 
 Showers likely, mainly after 2am. Mostly cloudy, with a low around 46. Chance of precipitation is 60%.
Monday
 
 Showers likely before 8am. Mostly sunny, with a high near 57. Breezy. Chance of precipitation is 60%.
Monday Night
 
 Mostly clear, with a low around 29.
Tuesday
 
 Sunny, with a high near 47.
Tuesday Night
 
 Mostly cloudy, with a low around 33.
Wednesday
 
 Mostly cloudy, with a high near 51.
Wednesday Night
 
 Mostly cloudy, with a low around 34.
Thursday
 
 Partly sunny, with a high near 57.

 

Forecast from NOAA-NWS for Norristown PA.