National Weather Service Forecast for: Allentown PA
Issued by: National Weather Service Philadelphia, PA
Updated: 1:18 pm EDT Jun 1, 2025
 
This
Afternoon
This Afternoon: Mostly sunny, with a high near 67. West wind around 15 mph.
Mostly Sunny
 Tonight

Tonight: Partly cloudy, with a low around 45. West wind around 5 mph becoming calm.
Partly Cloudy
 Monday

Monday: Sunny, with a high near 73. Calm wind becoming west around 5 mph in the afternoon.
Sunny
 Monday
Night
Monday Night: Mostly clear, with a low around 51. Calm wind.
Mostly Clear
 Tuesday

Tuesday: Sunny, with a high near 80. Calm wind.
Sunny
 Tuesday
Night
Tuesday Night: Mostly clear, with a low around 57.
Mostly Clear
 Wednesday

Wednesday: Sunny, with a high near 86.
Sunny
 Wednesday
Night
Wednesday Night: Mostly clear, with a low around 63.
Mostly Clear
 Thursday

Thursday: Mostly sunny, with a high near 89.
Mostly Sunny
Hi 67 °F Lo 45 °F Hi 73 °F Lo 51 °F Hi 80 °F Lo 57 °F Hi 86 °F Lo 63 °F Hi 89 °F

 

This Afternoon
 
 Mostly sunny, with a high near 67. West wind around 15 mph.
Tonight
 
 Partly cloudy, with a low around 45. West wind around 5 mph becoming calm.
Monday
 
 Sunny, with a high near 73. Calm wind becoming west around 5 mph in the afternoon.
Monday Night
 
 Mostly clear, with a low around 51. Calm wind.
Tuesday
 
 Sunny, with a high near 80. Calm wind.
Tuesday Night
 
 Mostly clear, with a low around 57.
Wednesday
 
 Sunny, with a high near 86.
Wednesday Night
 
 Mostly clear, with a low around 63.
Thursday
 
 Mostly sunny, with a high near 89.
Thursday Night
 
 Partly cloudy, with a low around 67.
Friday
 
 A chance of showers. Partly sunny, with a high near 85. Chance of precipitation is 50%.
Friday Night
 
 A chance of showers. Mostly cloudy, with a low around 66. Chance of precipitation is 50%.
Saturday
 
 Showers likely. Mostly cloudy, with a high near 82. Chance of precipitation is 60%.

 

Forecast from NOAA-NWS for Allentown PA.