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    • Tonight

      Sep 25

      41° Lo F
      Mostly clear and chilly
      • Asthma
      • Weather
      • Hi RealFeel: 76°
      • UV: 4 - Moderate
      • Air Qual.: Good
    • Mon

      Sep 26

      71° /59°
      Sun followed by clouds
      • Beneficial
      • weather for asthma
      • Hi RealFeel: 72°
      • UV: 4 - Moderate
      • Air Qual.: Good
      More
    • Tue

      Sep 27

      72° /46°
      Clouds yielding to sun
      • Beneficial
      • weather for asthma
      • Hi RealFeel: 74°
      • UV: 4 - Moderate
      • Air Qual.: Good
      More
    • Wed

      Sep 28

      73° /51°
      Times of clouds and sun
      • Beneficial
      • weather for asthma
      • Hi RealFeel: 75°
      • UV: 4 - Moderate
      • Air Qual.: Good
      More
    • Thu

      Sep 29

      65° /57°
      Rain and drizzle possible
      • Beneficial
      • weather for asthma
      • Hi RealFeel: 66°
      • UV: 2 - Low
      • Air Qual.: Good
      More
    68°/49° RealFeel® 75°/50°
    Bright sunshine
    • 2 mph
    • Precipitation: 4%
    • Rain: 0 in
    • Snow: 0 in
    • Humidity: 53%
    • Cloud Cover: 0%
    • Dew Point: 42° F
    • Visibility: 10 mi

    Temperature History

    more Historical Weather Data >
      Today Normal Record 9/25/2015
    High 70° 71° N/A 73°
    Low 41° 49° N/A 57°

    Sunrise/Sunset

    • Sunrise: 6:53 AM
    • Sunset: 6:53 PM
    • Duration: 12:00 hr

    Moonrise/Moonset

    • Moonrise: 1:30 AM
    • Moonset: 3:58 PM
    • Duration: 14:28 hr
    Astronomy

    Allentown Weather Report

    Crisp fall air to bring first frost of season to parts of northeastern US

    September 25, 2016; 9:29 PM ET

    Fall air has finally arrived in the northeastern United States and may yield the first frost of the season in parts of the region to end this weekend. More >

    Sun. Air Quality

    Sun. Asthma Risk

    Sun. UV Index