National Weather Service Forecast for: Bethlehem PA
Issued by: National Weather Service Philadelphia, PA
Updated: 4:08 pm EDT Jul 16, 2026
 
This
Afternoon
This Afternoon: A chance of showers and thunderstorms. Areas of smoke. Sunny, with a high near 93. West wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Chance
Showers
 Tonight

Tonight: Widespread smoke, mainly after 8pm. Partly cloudy, with a low around 65. North wind 5 to 10 mph becoming light northwest after midnight.
Smoke
 Friday

Friday: Areas of smoke. Mostly sunny, with a high near 87. Calm wind becoming north around 5 mph.
Areas Smoke
 Friday
Night
Friday Night: Patchy smoke before 3am. Partly cloudy, with a low around 68. Calm wind.
Patchy Smoke
 Saturday

Saturday: Showers and possibly a thunderstorm. High near 83. Light south wind increasing to 5 to 10 mph in the afternoon. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.
Showers
 Saturday
Night
Saturday Night: Showers and possibly a thunderstorm before 2am, then a slight chance of showers. Low around 70. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Showers
 Sunday

Sunday: Mostly sunny, with a high near 84.
Mostly Sunny
 Sunday
Night
Sunday Night: Mostly clear, with a low around 60.
Mostly Clear
 Monday

Monday: Sunny, with a high near 85.
Sunny
Hi 93 °F Lo 65 °F Hi 87 °F Lo 68 °F Hi 83 °F Lo 70 °F Hi 84 °F Lo 60 °F Hi 85 °F

Air Quality Alert
 

This Afternoon
 
 A chance of showers and thunderstorms. Areas of smoke. Sunny, with a high near 93. West wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tonight
 
 Widespread smoke, mainly after 8pm. Partly cloudy, with a low around 65. North wind 5 to 10 mph becoming light northwest after midnight.
Friday
 
 Areas of smoke. Mostly sunny, with a high near 87. Calm wind becoming north around 5 mph.
Friday Night
 
 Patchy smoke before 3am. Partly cloudy, with a low around 68. Calm wind.
Saturday
 
 Showers and possibly a thunderstorm. High near 83. Light south wind increasing to 5 to 10 mph in the afternoon. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.
Saturday Night
 
 Showers and possibly a thunderstorm before 2am, then a slight chance of showers. Low around 70. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Sunday
 
 Mostly sunny, with a high near 84.
Sunday Night
 
 Mostly clear, with a low around 60.
Monday
 
 Sunny, with a high near 85.
Monday Night
 
 Partly cloudy, with a low around 65.
Tuesday
 
 Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 87. Chance of precipitation is 60%.
Tuesday Night
 
 Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 67. Chance of precipitation is 60%.
Wednesday
 
 A chance of showers. Partly sunny, with a high near 84. Chance of precipitation is 40%.
Wednesday Night
 
 A chance of showers. Partly cloudy, with a low around 63. Chance of precipitation is 30%.
Thursday
 
 Mostly sunny, with a high near 82.

 

Forecast from NOAA-NWS for Bethlehem PA.