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NWS Forecast for Allentown, PA
National Weather Service Forecast for: Allentown, PA
Issued by: National Weather Service Philadelphia/Mt Holly
Updated: 4:10 pm EDT Oct 10, 2026

Allentown, PA
 
  Sunday

Sunday: Rain
Rain
Columbus
Day
Columbus Day: Partly Sunny
Partly Sunny
Tuesday

Tuesday: Mostly Sunny
Mostly Sunny
Wednesday

Wednesday: Mostly Sunny
Mostly Sunny
Thursday

Thursday: Mostly Sunny
Mostly Sunny
Friday

Friday: Chance Rain Showers
Chance Rain Showers
Saturday

Saturday: Slight Chance Rain Showers then Partly Sunny
Slight Chance Rain Showers then Partly Sunny
  Hi 64 °F Hi 73 °F Hi 74 °F Hi 74 °F Hi 67 °F Hi 65 °F Hi 60 °F
 
Tonight

Tonight: Mostly Cloudy
Mostly Cloudy
Sunday
Night
Sunday Night: Rain then Chance Showers And Thunderstorms
Rain then Chance Showers And T-Storms
Monday
Night
Monday Night: Mostly Clear
Mostly Clear
Tuesday
Night
Tuesday Night: Partly Cloudy
Partly Cloudy
Wednesday
Night
Wednesday Night: Mostly Clear
Mostly Clear
Thursday
Night
Thursday Night: Mostly Cloudy then Slight Chance Rain Showers
Mostly Cloudy then Slight Chance Rain Showers
Friday
Night
Friday Night: Chance Rain Showers
Chance Rain Showers
 
Lo 54 °F Lo 59 °F Lo 55 °F Lo 61 °F Lo 53 °F Lo 51 °F Lo 50 °F  

 

Tonight
 
Mostly cloudy, with a low around 54. East wind 0 to 5 mph.
Sunday
 
Rain between 7am and 5pm, then rain and a slight chance of thunderstorms. Cloudy, with a high near 64. East wind 5 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 100%. New rainfall amounts between 1 and 2 inches possible.
Sunday Night
 
Rain and a slight chance of thunderstorms before 8pm, then showers and thunderstorms likely between 8pm and 11pm, then a slight chance of showers and thunderstorms between 11pm and midnight, then a chance of showers and thunderstorms between midnight and 3am, then a slight chance of showers and thunderstorms between 3am and 5am. Cloudy, with a low around 59. Northeast wind 5 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 100%. New rainfall amounts between three quarters and one inch possible.
Columbus Day
 
Partly sunny, with a high near 73. North wind around 5 mph. New rainfall amounts less than a tenth of an inch possible.
Monday Night
 
Mostly clear, with a low around 55. Northwest wind 0 to 5 mph.
Tuesday
 
Mostly sunny, with a high near 74.
Tuesday Night
 
Partly cloudy, with a low around 61.
Wednesday
 
Mostly sunny, with a high near 74.
Wednesday Night
 
Mostly clear, with a low around 53.
Thursday
 
Mostly sunny, with a high near 67.
Thursday Night
 
A slight chance of rain showers after 2am. Mostly cloudy, with a low around 51.
Friday
 
A chance of rain showers. Mostly cloudy, with a high near 65. Chance of precipitation is 50%.
Friday Night
 
A chance of rain showers. Mostly cloudy, with a low around 50. Chance of precipitation is 50%.
Saturday
 
A slight chance of rain showers before 8am. Partly sunny, with a high near 60.

 

Forecast from NOAA-NWS for Allentown, PA.

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