National Weather Service Forecast for: Folsom PA
Issued by: National Weather Service Philadelphia, PA
Updated: 6:05 pm EST Dec 17, 2025
 
Tonight

Tonight: Patchy fog between 1am and 2am. Patchy freezing fog after 2am.  Otherwise, mostly cloudy, with a low around 27. West wind around 5 mph becoming calm  in the evening.
Mostly Cloudy
then Patchy
Freezing Fog
and Patchy
Fog
Thursday

Thursday: Patchy fog between 9am and 10am. Patchy freezing fog before 9am.  Otherwise, partly sunny, with a high near 46. Northeast wind 5 to 10 mph becoming southeast in the afternoon.
Patchy
Freezing Fog
and Patchy
Fog then
Mostly Cloudy
Thursday
Night
Thursday Night: Rain, with thunderstorms also possible after 4am.  Temperature rising to around 56 by 4am. Breezy, with a south wind 5 to 10 mph increasing to 15 to 20 mph after midnight. Winds could gust as high as 40 mph.  Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.
Rain and
Breezy

Friday

Friday: Showers likely and possibly a thunderstorm before 1pm.  Cloudy, then gradually becoming mostly sunny, with a high near 57. Breezy, with a south wind 15 to 20 mph becoming west in the morning. Winds could gust as high as 40 mph.  Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
Showers
Likely and
Breezy

Friday
Night
Friday Night: Mostly clear, with a low around 27. West wind 5 to 15 mph, with gusts as high as 40 mph.
Mostly Clear


Saturday

Saturday: Mostly sunny, with a high near 41.
Mostly Sunny


Saturday
Night
Saturday Night: Mostly cloudy, with a low around 35.
Mostly Cloudy


Sunday

Sunday: Mostly sunny, with a high near 48.
Mostly Sunny


Sunday
Night
Sunday Night: Mostly clear, with a low around 26.
Mostly Clear


Lo 27 °F Hi 46 °F Lo 44 °F Hi 57 °F Lo 27 °F Hi 41 °F Lo 35 °F Hi 48 °F Lo 26 °F

Wind Advisory
 

Tonight
 
Patchy fog between 1am and 2am. Patchy freezing fog after 2am. Otherwise, mostly cloudy, with a low around 27. West wind around 5 mph becoming calm in the evening.
Thursday
 
Patchy fog between 9am and 10am. Patchy freezing fog before 9am. Otherwise, partly sunny, with a high near 46. Northeast wind 5 to 10 mph becoming southeast in the afternoon.
Thursday Night
 
Rain, with thunderstorms also possible after 4am. Temperature rising to around 56 by 4am. Breezy, with a south wind 5 to 10 mph increasing to 15 to 20 mph after midnight. Winds could gust as high as 40 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.
Friday
 
Showers likely and possibly a thunderstorm before 1pm. Cloudy, then gradually becoming mostly sunny, with a high near 57. Breezy, with a south wind 15 to 20 mph becoming west in the morning. Winds could gust as high as 40 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
Friday Night
 
Mostly clear, with a low around 27. West wind 5 to 15 mph, with gusts as high as 40 mph.
Saturday
 
Mostly sunny, with a high near 41.
Saturday Night
 
Mostly cloudy, with a low around 35.
Sunday
 
Mostly sunny, with a high near 48.
Sunday Night
 
Mostly clear, with a low around 26.
Monday
 
Sunny, with a high near 37.
Monday Night
 
Partly cloudy, with a low around 27.
Tuesday
 
A chance of rain and snow. Mostly cloudy, with a high near 43. Chance of precipitation is 30%.
Tuesday Night
 
Mostly cloudy, with a low around 34.
Wednesday
 
Mostly sunny, with a high near 44.

 

Forecast from NOAA-NWS for Folsom PA.