National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Allentown, Lehigh Valley International Airport (KABE)

Lat: 40.65°NLon: 75.45°WElev: 384ft.

Fair

44°F

7°C

Humidity 68%
Wind Speed SW 6 mph
Barometer 29.97 in (1014.8 mb)
Dewpoint 34°F (1°C)
Visibility 10.00 mi
Wind Chill41°F (5°C)
Last update 11 Nov 3:51 am EST
Extended Forecast for

Mertztown PA

  • Veterans Day

    Veterans Day: Patchy fog before 8am. Otherwise, mostly sunny, with a high near 62. Calm wind becoming southwest around 5 mph.

    High: 62 °F

    Patchy Fog
    then Partly
    Sunny

  • Tonight

    Tonight: Rain likely, mainly after 5am. Mostly cloudy, with a low around 45. Calm wind becoming east around 5 mph after midnight. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 45 °F

    Slight Chance
    Rain then
    Rain Likely

  • Thursday

    Thursday: Rain, mainly before 4pm. High near 58. East wind around 5 mph becoming northwest in the afternoon. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    High: 58 °F

    Rain

  • Thursday Night

    Thursday Night: Rain likely, mainly after 1am. Mostly cloudy, with a low around 37. Northwest wind 10 to 15 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 37 °F

    Rain Likely

  • Friday

    Friday: A chance of rain before 1pm. Mostly cloudy, with a high near 47. Northwest wind around 15 mph. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.

    High: 47 °F

    Chance Rain

  • Friday Night

    Friday Night: A slight chance of rain between 1am and 4am, then a slight chance of snow after 4am. Mostly cloudy, with a low around 32. Chance of precipitation is 20%.

    Low: 32 °F

    Mostly Cloudy
    then Slight
    Chance
    Rain/Snow

  • Saturday

    Saturday: Partly sunny, with a high near 47.

    High: 47 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 33.

    Low: 33 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 49.

    High: 49 °F

    Mostly Sunny

Detailed Forecast

Veterans Day
Patchy fog before 8am. Otherwise, mostly sunny, with a high near 62. Calm wind becoming southwest around 5 mph.
Tonight
Rain likely, mainly after 5am. Mostly cloudy, with a low around 45. Calm wind becoming east around 5 mph after midnight. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Thursday
Rain, mainly before 4pm. High near 58. East wind around 5 mph becoming northwest in the afternoon. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Thursday Night
Rain likely, mainly after 1am. Mostly cloudy, with a low around 37. Northwest wind 10 to 15 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Friday
A chance of rain before 1pm. Mostly cloudy, with a high near 47. Northwest wind around 15 mph. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.
Friday Night
A slight chance of rain between 1am and 4am, then a slight chance of snow after 4am. Mostly cloudy, with a low around 32. Chance of precipitation is 20%.
Saturday
Partly sunny, with a high near 47.
Saturday Night
Partly cloudy, with a low around 33.
Sunday
Mostly sunny, with a high near 49.
Sunday Night
Partly cloudy, with a low around 32.
Monday
Mostly sunny, with a high near 51.
Monday Night
Mostly clear, with a low around 29.
Tuesday
Mostly sunny, with a high near 52.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Mertztown PA
 40.5°N 75.66°W (Elev. 499 ft)
Last Update:
4:07 am EST Nov 11, 2026
Forecast Valid:
4am EST Nov 11, 2026-6pm EST Nov 17, 2026
 
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Additional Resources

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Chance of Precipitation