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

Hazardous Weather Conditions

Current conditions at

Allentown, Lehigh Valley International Airport (KABE)

Lat: 40.65°NLon: 75.45°WElev: 384ft.

Fair

31°F

-1°C

Humidity 100%
Wind Speed NW 5 mph
Barometer 30.11 in (1019.8 mb)
Dewpoint 31°F (-1°C)
Visibility 10.00 mi
Wind Chill26°F (-3°C)
Last update 20 Apr 5:51 am EDT
Extended Forecast for

Belfast PA

Frost Advisory April 20, 06:21am until April 20, 08:00am
Freeze Warning April 21, 12:00am until April 21, 09:00am
Click here for hazard details and duration
...
Freeze Warning
  •  
    Frost Advisory April 20, 06:21am until April 20, 08:00am

    NOW until 8:00am Mon

    Frost Advisory

  • Today

    High: 48 °F

    Patchy Frost
    then Mostly
    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 26. North wind around 5 mph becoming calm after midnight.

    Low: 26 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 53. Calm wind becoming southwest around 5 mph in the afternoon.

    High: 53 °F

    Sunny

  • Tuesday Night

    Tuesday Night: A chance of showers, mainly after 2am. Mostly cloudy, with a low around 40. South wind around 5 mph. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 40 °F

    Chance
    Showers

  • Wednesday

    Wednesday: A chance of showers, mainly before 8am. Partly sunny, with a high near 65. Calm wind becoming west around 5 mph in the afternoon. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    High: 65 °F

    Chance
    Showers

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 42.

    Low: 42 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 70.

    High: 70 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 45.

    Low: 45 °F

    Partly Cloudy

Detailed Forecast

Today
Patchy frost before 8am. Otherwise, mostly sunny, with a high near 48. West wind 5 to 15 mph becoming north in the morning.
Tonight
Mostly clear, with a low around 26. North wind around 5 mph becoming calm after midnight.
Tuesday
Sunny, with a high near 53. Calm wind becoming southwest around 5 mph in the afternoon.
Tuesday Night
A chance of showers, mainly after 2am. Mostly cloudy, with a low around 40. South wind around 5 mph. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday
A chance of showers, mainly before 8am. Partly sunny, with a high near 65. Calm wind becoming west around 5 mph in the afternoon. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday Night
Partly cloudy, with a low around 42.
Thursday
Mostly sunny, with a high near 70.
Thursday Night
Partly cloudy, with a low around 45.
Friday
Mostly sunny, with a high near 69.
Friday Night
A chance of showers. Mostly cloudy, with a low around 46. Chance of precipitation is 30%.
Saturday
A chance of showers. Mostly cloudy, with a high near 59. Chance of precipitation is 40%.
Saturday Night
Showers likely. Mostly cloudy, with a low around 43. Chance of precipitation is 60%.
Sunday
A chance of showers. Mostly cloudy, with a high near 60. Chance of precipitation is 40%.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Belfast PA
 40.79°N 75.26°W (Elev. 554 ft)
Last Update:
4:10 am EDT Apr 20, 2026
Forecast Valid:
6am EDT Apr 20, 2026-6pm EDT Apr 26, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation