Allentown weather live forecast

Today's maximum temperature in Allentown is expected to be 4°C. Select a day from the live weather forecast for Allentown, Pennsylvania, USA for more weather parameters.

  • Sunday
    30th Nov
    Mostly cloudy with light rain (2-5 mm of rainfall expected)
  • Monday
    1st Dec
    Scattered clouds
  • Tuesday
    2nd Dec
    Cloudy with sleet or snow (5-10 mm of rainfall expected)
  • Wednesday
    3rd Dec
    Scattered clouds
  • Thursday
    4th Dec
    Broken clouds

5-day weather forecast updated at 04:01 on Sunday 30th November 2025 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 Sunday 30th November 2025

Expect mostly cloudy with light rain in Allentown, Pennsylvania with a maximum temperature of 4°C and no hours of bright sunshine. There are 2-5 mm of rainfall expected with 64% chance of some rain and a gentle breeze of 19 kph from the south.

  • 4°C maximum temperature4
    °C maximum temperature
  • 0°C minimum temperature0
    °C minimum temperature
  • Mostly cloudy with light rain
    mostly cloudy with light 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
  • 2-5 mm of rainfall expected<5
    mm of rainfall expected
  • 1°C wind chill1
    °C wind chill
  • Gentle breeze of 19 kph from the South19
    kph wind from S

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Allentown weather for Monday 1st December 2025

Expect scattered clouds in Allentown, Pennsylvania with a maximum temperature of 4°C, maximum UV of 1 (Low) and 7 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 18 kph from the north-west.

  • 4°C maximum temperature4
    °C maximum temperature
  • -2°C minimum temperature-2
    °C minimum temperature
  • Scattered clouds
    scattered clouds
  • 7 hours of bright sunshine7
    hours of sunshine
  • UV (maximum) index 1 (Low)1
    UV index (Low)
  • 0 mm of rainfall expected0
    mm of rainfall expected
  • 0°C wind chill0
    °C wind chill
  • Gentle breeze of 18 kph from the North-West18
    kph wind from NW

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Allentown weather for Tuesday 2nd December 2025

Expect cloudy with sleet or snow in Allentown, Pennsylvania with a maximum temperature of 2°C and no hours of bright sunshine. There are 5-10 mm of sleet/snow expected with 98% chance of some sleet or snow and a gentle breeze of 16 kph from the north-west.

  • 2°C maximum temperature2
    °C maximum temperature
  • -2°C minimum temperature-2
    °C minimum temperature
  • Cloudy with sleet or snow
    cloudy with sleet or snow
  • No hours of bright sunshine0
    hours of sunshine
  • No UV (maximum) index0
    UV index (None)
  • 98% chance of some sleet or snow98
    % chance of some sleet or snow
  • 5-10 mm of sleet/snow expected<10
    mm of sleet/snow expected
  • -2°C wind chill-2
    °C wind chill
  • Gentle breeze of 16 kph from the North-West16
    kph wind from NW

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Allentown weather for Wednesday 3rd December 2025

Expect scattered clouds in Allentown, Pennsylvania with a maximum temperature of 2°C, maximum UV of 2 (Low) and 8 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 16 kph from the north-west.

  • 2°C maximum temperature2
    °C maximum temperature
  • -4°C minimum temperature-4
    °C minimum temperature
  • Scattered clouds
    scattered clouds
  • 8 hours of bright sunshine8
    hours of sunshine
  • UV (maximum) index 2 (Low)2
    UV index (Low)
  • 0 mm of rainfall expected0
    mm of rainfall expected
  • -2°C wind chill-2
    °C wind chill
  • Gentle breeze of 16 kph from the North-West16
    kph wind from NW

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Allentown weather for Thursday 4th December 2025

Expect broken clouds in Allentown, Pennsylvania with a maximum temperature of 2°C, maximum UV of 1 (Low) and 1 hour of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 19 kph from the west.

  • 2°C maximum temperature2
    °C maximum temperature
  • -5°C minimum temperature-5
    °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
  • Gentle breeze of 19 kph from the West19
    kph wind from W

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Expires at 23:59 on Wednesday 31st Dec 2025

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

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