National Weather Service Forecast for: Bethlehem PA
Issued by: National Weather Service Philadelphia, PA
Updated: 4:08 am EDT May 26, 2026
 
Today

Today: Partly sunny, with a high near 82. Calm wind becoming south around 5 mph.
Partly Sunny

 Tonight

Tonight: A slight chance of showers after 2am. Mostly cloudy, with a low around 63. Southwest wind around 5 mph becoming calm. Chance of precipitation is 20%.
Mostly Cloudy
then Slight
Chance
Showers
 Wednesday

Wednesday: A chance of showers, mainly between 8am and 9am. Mostly cloudy, with a high near 83. Calm wind becoming west around 5 mph in the afternoon. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.
Chance
Showers then
Mostly Cloudy
 Wednesday
Night
Wednesday Night: Mostly cloudy, with a low around 61. West wind around 5 mph becoming calm.
Mostly Cloudy

 Thursday

Thursday: Sunny, with a high near 77. Northwest wind 5 to 10 mph, with gusts as high as 20 mph.
Sunny

 Thursday
Night
Thursday Night: Mostly clear, with a low around 54.
Mostly Clear

 Friday

Friday: Sunny, with a high near 76.
Sunny

 Friday
Night
Friday Night: Partly cloudy, with a low around 53.
Partly Cloudy

 Saturday

Saturday: Sunny, with a high near 72.
Sunny
Hi 82 °F Lo 63 °F Hi 83 °F Lo 61 °F Hi 77 °F Lo 54 °F Hi 76 °F Lo 53 °F Hi 72 °F

 

Today
 
 Partly sunny, with a high near 82. Calm wind becoming south around 5 mph.
Tonight
 
 A slight chance of showers after 2am. Mostly cloudy, with a low around 63. Southwest wind around 5 mph becoming calm. Chance of precipitation is 20%.
Wednesday
 
 A chance of showers, mainly between 8am and 9am. Mostly cloudy, with a high near 83. Calm wind becoming west around 5 mph in the afternoon. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday Night
 
 Mostly cloudy, with a low around 61. West wind around 5 mph becoming calm.
Thursday
 
 Sunny, with a high near 77. Northwest wind 5 to 10 mph, with gusts as high as 20 mph.
Thursday Night
 
 Mostly clear, with a low around 54.
Friday
 
 Sunny, with a high near 76.
Friday Night
 
 Partly cloudy, with a low around 53.
Saturday
 
 Sunny, with a high near 72.
Saturday Night
 
 Partly cloudy, with a low around 51.
Sunday
 
 Mostly sunny, with a high near 74.
Sunday Night
 
 Partly cloudy, with a low around 54.
Monday
 
 Mostly sunny, with a high near 75.

 

Forecast from NOAA-NWS for Bethlehem PA.