National Weather Service Forecast for: Norristown PA
Issued by: National Weather Service Philadelphia, PA
Updated: 4:12 pm EST Dec 22, 2025
 
Tonight

Tonight: Snow likely, mainly after 5am. Mostly cloudy, with a low around 29. Southwest wind around 5 mph becoming calm after midnight. Chance of precipitation is 60%. Total nighttime snow accumulation of less than a half inch possible.
Mostly Cloudy
then Snow
Likely
 Tuesday

Tuesday: Rain and snow, becoming all rain after 11am. High near 43. Southeast wind around 5 mph becoming west in the afternoon. Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.
Rain/Snow
then Chance
Rain
 Tuesday
Night
Tuesday Night: Mostly cloudy, then gradually becoming mostly clear, with a low around 34. West wind 5 to 15 mph, with gusts as high as 30 mph.
Decreasing
Clouds
 Wednesday

Wednesday: Sunny, with a high near 45. Northwest wind 5 to 15 mph, with gusts as high as 30 mph.
Sunny

 Wednesday
Night
Wednesday Night: Mostly cloudy, with a low around 28. Calm wind.
Mostly Cloudy

 Christmas
Day
Christmas Day: A slight chance of rain and snow before 1pm. Mostly cloudy, with a high near 44. Chance of precipitation is 20%.
Slight Chance
Rain/Snow
 Thursday
Night
Thursday Night: Mostly cloudy, with a low around 30.
Mostly Cloudy

 Friday

Friday: A chance of rain, snow, and freezing rain before 1pm, then rain and snow. High near 36. Chance of precipitation is 90%.
Chance Wintry
Mix then
Wintry Mix
 Friday
Night
Friday Night: Rain and snow before 1am, then a chance of rain or freezing rain. Low around 31. Chance of precipitation is 80%.
Wintry Mix
Lo 29 °F Hi 43 °F Lo 34 °F Hi 45 °F Lo 28 °F Hi 44 °F Lo 30 °F Hi 36 °F Lo 31 °F

 

Tonight
 
 Snow likely, mainly after 5am. Mostly cloudy, with a low around 29. Southwest wind around 5 mph becoming calm after midnight. Chance of precipitation is 60%. Total nighttime snow accumulation of less than a half inch possible.
Tuesday
 
 Rain and snow, becoming all rain after 11am. High near 43. Southeast wind around 5 mph becoming west in the afternoon. Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.
Tuesday Night
 
 Mostly cloudy, then gradually becoming mostly clear, with a low around 34. West wind 5 to 15 mph, with gusts as high as 30 mph.
Wednesday
 
 Sunny, with a high near 45. Northwest wind 5 to 15 mph, with gusts as high as 30 mph.
Wednesday Night
 
 Mostly cloudy, with a low around 28. Calm wind.
Christmas Day
 
 A slight chance of rain and snow before 1pm. Mostly cloudy, with a high near 44. Chance of precipitation is 20%.
Thursday Night
 
 Mostly cloudy, with a low around 30.
Friday
 
 A chance of rain, snow, and freezing rain before 1pm, then rain and snow. High near 36. Chance of precipitation is 90%.
Friday Night
 
 Rain and snow before 1am, then a chance of rain or freezing rain. Low around 31. Chance of precipitation is 80%.
Saturday
 
 A chance of rain. Cloudy, with a high near 40. Chance of precipitation is 30%.
Saturday Night
 
 A chance of rain. Cloudy, with a low around 32. Chance of precipitation is 40%.
Sunday
 
 Rain likely. Cloudy, with a high near 47. Chance of precipitation is 60%.
Sunday Night
 
 A chance of rain. Mostly cloudy, with a low around 25. Chance of precipitation is 40%.
Monday
 
 Mostly sunny, with a high near 32.

 

Forecast from NOAA-NWS for Norristown PA.