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

29°F

-2°C

Humidity 43%
Wind Speed Vrbl 5 mph
Barometer 30.39 in (1029.8 mb)
Dewpoint 9°F (-13°C)
Visibility 10.00 mi
Wind Chill24°F (-4°C)
Last update 18 Mar 11:51 am EDT
Extended Forecast for

Bethlehem PA

  • This Afternoon

    This Afternoon: Mostly cloudy, then gradually becoming sunny, with a high near 40. Calm wind becoming south around 5 mph.

    High: 40 °F

    Decreasing
    Clouds

  • Tonight

    Tonight: Partly cloudy, with a low around 28. South wind around 5 mph becoming calm.

    Low: 28 °F

    Partly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 48. Calm wind becoming south around 5 mph in the afternoon.

    High: 48 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 33. Calm wind.

    Low: 33 °F

    Mostly Cloudy

  • Friday

    Friday: A slight chance of rain after 2pm. Partly sunny, with a high near 56. Calm wind becoming southwest around 5 mph in the afternoon. Chance of precipitation is 20%.

    High: 56 °F

    Mostly Sunny
    then Slight
    Chance Rain

  • Friday Night

    Friday Night: Rain likely, mainly after 2am. Mostly cloudy, with a low around 42. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 42 °F

    Rain Likely

  • Saturday

    Saturday: Rain likely before 8am. Partly sunny, with a high near 61. Chance of precipitation is 60%.

    High: 61 °F

    Rain Likely
    then Partly
    Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 41.

    Low: 41 °F

    Mostly Cloudy

  • Sunday

    Sunday: A chance of rain. Mostly cloudy, with a high near 64. Chance of precipitation is 40%.

    High: 64 °F

    Chance Rain

Detailed Forecast

This Afternoon
Mostly cloudy, then gradually becoming sunny, with a high near 40. Calm wind becoming south around 5 mph.
Tonight
Partly cloudy, with a low around 28. South wind around 5 mph becoming calm.
Thursday
Partly sunny, with a high near 48. Calm wind becoming south around 5 mph in the afternoon.
Thursday Night
Mostly cloudy, with a low around 33. Calm wind.
Friday
A slight chance of rain after 2pm. Partly sunny, with a high near 56. Calm wind becoming southwest around 5 mph in the afternoon. Chance of precipitation is 20%.
Friday Night
Rain likely, mainly after 2am. Mostly cloudy, with a low around 42. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.
Saturday
Rain likely before 8am. Partly sunny, with a high near 61. Chance of precipitation is 60%.
Saturday Night
Mostly cloudy, with a low around 41.
Sunday
A chance of rain. Mostly cloudy, with a high near 64. Chance of precipitation is 40%.
Sunday Night
A chance of rain. Mostly cloudy, with a low around 39. Chance of precipitation is 40%.
Monday
Mostly sunny, with a high near 50.
Monday Night
Mostly clear, with a low around 26.
Tuesday
Mostly sunny, with a high near 47.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Bethlehem PA
 40.63°N 75.38°W (Elev. 299 ft)
Last Update:
4:34 am EDT Mar 18, 2026
Forecast Valid:
12pm EDT Mar 18, 2026-6pm EDT Mar 24, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation