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

52°F

11°C

Humidity 45%
Wind Speed Calm
Barometer 30.62 in (1037.0 mb)
Dewpoint 31°F (-1°C)
Visibility 10.00 mi
Last update 18 Oct 11:51 am EDT
Extended Forecast for

Belfast PA

  • This Afternoon

    This Afternoon: Sunny, with a high near 59. Calm wind.

    High: 59 °F

    Sunny

  • Tonight

    Tonight: Areas of frost after 2am. Otherwise, clear, with a low around 33. Calm wind becoming north around 5 mph.

    Low: 33 °F

    Clear then
    Areas Frost

  • Monday

    Monday: Areas of frost before 10am. Otherwise, increasing clouds, with a high near 64. Northeast wind 5 to 10 mph.

    High: 64 °F

    Areas Frost
    then Mostly
    Sunny

  • Monday Night

    Monday Night: Mostly cloudy, then gradually becoming mostly clear, with a low around 44. North wind 5 to 10 mph.

    Low: 44 °F

    Decreasing
    Clouds

  • Tuesday

    Tuesday: Mostly sunny, with a high near 67. North wind around 10 mph.

    High: 67 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 41.

    Low: 41 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 63.

    High: 63 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 42.

    Low: 42 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 66.

    High: 66 °F

    Sunny

Detailed Forecast

This Afternoon
Sunny, with a high near 59. Calm wind.
Tonight
Areas of frost after 2am. Otherwise, clear, with a low around 33. Calm wind becoming north around 5 mph.
Monday
Areas of frost before 10am. Otherwise, increasing clouds, with a high near 64. Northeast wind 5 to 10 mph.
Monday Night
Mostly cloudy, then gradually becoming mostly clear, with a low around 44. North wind 5 to 10 mph.
Tuesday
Mostly sunny, with a high near 67. North wind around 10 mph.
Tuesday Night
Mostly clear, with a low around 41.
Wednesday
Sunny, with a high near 63.
Wednesday Night
Mostly clear, with a low around 42.
Thursday
Sunny, with a high near 66.
Thursday Night
Mostly clear, with a low around 45.
Friday
Sunny, with a high near 62.
Friday Night
Mostly clear, with a low around 42.
Saturday
Sunny, with a high near 60.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Belfast PA
 40.77°N 75.29°W (Elev. 502 ft)
Last Update:
6:31 am EDT Oct 18, 2026
Forecast Valid:
12pm EDT Oct 18, 2026-6pm EDT Oct 24, 2026
 
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