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    • Today

      Sep 25

      71° /42°F
      Sunny and pleasant
      • Ragweed Pollen
        • Ragweed Pollen
        • Grass Pollen
        • Tree Pollen
        • Mold
        • Dust & Dander
        • Air Quality Index
      • Low
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: Low
    • Mon

      Sep 26

      73° /60°
      Increasing cloudiness
      • Low
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: Low
      More
    • Tue

      Sep 27

      73° /45°
      Mostly sunny
      • Low
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: Low
      More
    • Wed

      Sep 28

      72° /53°
      Times of sun and clouds
      • Low
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: Low
      More
    • Thu

      Sep 29

      70° /52°
      Rain and drizzle possible
      • Low
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: Low
      More
    Sunday
    9am
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    Forecast Sunny Sunny Sunny Sunny Sunny Sunny Sunny Sunny
    Temp (°F) 53° 58° 63° 67° 68° 69° 70° 71°
    RealFeel® 56° 64° 70° 73° 75° 76° 75° 73°
    Wind (mph) 4 NNW 4 N 5 N 5 N 5 NNW 5 NNW 5 NW 5 NW
    precip
    9am
    10am
    11am
    12pm
    1pm
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    Rain
    0%
    0%
    0%
    0%
    0%
    0%
    0%
    0%
    Snow
    0%
    0%
    0%
    0%
    0%
    0%
    0%
    0%
    Ice
    0%
    0%
    0%
    0%
    0%
    0%
    0%
    0%
    SKY
    9am
    10am
    11am
    12pm
    1pm
    2pm
    3pm
    4pm
    UV Index 1 2 4 4 5 4 4 2
    Cloud Cover 0% 0% 0% 0% 0% 0% 0% 0%
    Humidity 66% 52% 44% 40% 36% 34% 33% 33%
    Dew Point 42° 41° 41° 42° 41° 40° 40° 40°
    Temp °F
    9am
    10am
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    12pm
    1pm
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    75° 70° 65° 60° 55° 50°

    Temperature History

    more Historical Weather Data >
      Today Normal Record 9/25/2015
    High 71° 71° 92° (1970) 76°
    Low 42° 49° 33° (1963) 56°

    Sunrise/Sunset

    • Sunrise: 6:53 AM
    • Sunset: 6:52 PM
    • Duration: 11:59 hr

    Moonrise/Moonset

    • Moonrise: 1:29 AM
    • Moonset: 3:57 PM
    • Duration: 14:28 hr
    Astronomy

    Bethlehem Weather Report

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

    September 25, 2016; 4:09 AM 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 this weekend. More >

    Sun. Pollen

    Sun. Dust & Dander

    Sun. Wind Maps