Allentown weather live forecast

Today's maximum temperature in Allentown is expected to be 1°C. Select a day from the live weather forecast for Allentown, Pennsylvania, USA for more weather parameters.

  • Monday
    5th Jan
    Broken clouds
  • Tuesday
    6th Jan
    Broken clouds
  • Wednesday
    7th Jan
    Broken clouds
  • Thursday
    8th Jan
    Broken clouds
  • Friday
    9th Jan
    Cloudy with some rain (10-20 mm of rainfall expected)

5-day weather forecast updated at 04:01 on Monday 5th January 2026 GMT

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The 5-day weather forecast for Pennsylvania (Allentown) is provided by the Swiss meteorological agency, meteoblue. Find out more about our data sources.

Allentown weather forecast by day

Below are the detailed weather forecasts for Allentown for the next 5 days.

Allentown weather for Monday 5th January 2026

Expect broken clouds in Allentown, Pennsylvania with a maximum temperature of 1°C, maximum UV of 1 (Low) and 1 hour of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 12 kph from the south.

  • 1°C maximum temperature1
    °C maximum temperature
  • -4°C minimum temperature-4
    °C minimum temperature
  • Broken clouds
    broken clouds
  • 1 hour of bright sunshine1
    hour of sunshine
  • UV (maximum) index 1 (Low)1
    UV index (Low)
  • 0 mm of rainfall expected0
    mm of rainfall expected
  • -2°C wind chill-2
    °C wind chill
  • Light breeze of 12 kph from the South12
    kph wind from S

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Allentown weather for Tuesday 6th January 2026

Expect broken clouds in Allentown, Pennsylvania with a maximum temperature of 5°C, maximum UV of 1 (Low) and 3 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 7 kph from the east.

  • 5°C maximum temperature5
    °C maximum temperature
  • -2°C minimum temperature-2
    °C minimum temperature
  • Broken clouds
    broken clouds
  • 3 hours of bright sunshine3
    hours of sunshine
  • UV (maximum) index 1 (Low)1
    UV index (Low)
  • 0 mm of rainfall expected0
    mm of rainfall expected
  • 3°C wind chill3
    °C wind chill
  • Light breeze of 7 kph from the East7
    kph wind from E

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Allentown weather for Wednesday 7th January 2026

Expect broken clouds in Allentown, Pennsylvania with a maximum temperature of 8°C, maximum UV of 1 (Low) and 2 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 18 kph from the west.

  • 8°C maximum temperature8
    °C maximum temperature
  • 1°C minimum temperature1
    °C minimum temperature
  • Broken clouds
    broken clouds
  • 2 hours of bright sunshine2
    hours of sunshine
  • UV (maximum) index 1 (Low)1
    UV index (Low)
  • 0 mm of rainfall expected0
    mm of rainfall expected
  • 5°C wind chill5
    °C wind chill
  • Gentle breeze of 18 kph from the West18
    kph wind from W

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Allentown weather for Thursday 8th January 2026

Expect broken clouds in Allentown, Pennsylvania with a maximum temperature of 8°C, maximum UV of 1 (Low) and 3 hours of bright sunshine. There are 0 mm of rainfall expected and little or no wind of 6 kph from the west.

  • 8°C maximum temperature8
    °C maximum temperature
  • 0°C minimum temperature0
    °C minimum temperature
  • Broken clouds
    broken clouds
  • 3 hours of bright sunshine3
    hours of sunshine
  • UV (maximum) index 1 (Low)1
    UV index (Low)
  • 0 mm of rainfall expected0
    mm of rainfall expected
  • 7°C wind chill7
    °C wind chill
  • Little or no wind of 6 kph from the West6
    kph wind from W

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Allentown weather for Friday 9th January 2026

Expect cloudy with some rain in Allentown, Pennsylvania with a maximum temperature of 12°C and no hours of bright sunshine. There are 10-20 mm of rainfall expected with 64% chance of some rain and a light breeze of 12 kph from the south.

  • 12°C maximum temperature12
    °C maximum temperature
  • 4°C minimum temperature4
    °C minimum temperature
  • Cloudy with some rain
    cloudy with some rain
  • No hours of bright sunshine0
    hours of sunshine
  • No UV (maximum) index0
    UV index (None)
  • 64% chance of some rain64
    % chance of some rain
  • 10-20 mm of rainfall expected<20
    mm of rainfall expected
  • 12°C wind chill12
    °C wind chill
  • Light breeze of 12 kph from the South12
    kph wind from S

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Metric (°C / mm)  |  Imperial (°F / inches)

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