Allentown weather live forecast

Today's maximum temperature in Allentown is expected to be -2°C. Select a day from the live weather forecast for Allentown, Pennsylvania, USA for more weather parameters.

5-day weather forecast updated at 04:01 on Friday 5th December 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 Friday 5th December 2025

Expect broken clouds in Allentown, Pennsylvania with a maximum temperature of -2°C, maximum UV of 2 (Low) and 2 hours of bright sunshine. There are 0 cm of snow expected and a light breeze of 7 kph from the east.

  • -2°C maximum temperature-2
    °C maximum temperature
  • -6°C minimum temperature-6
    °C minimum temperature
  • Broken clouds
    broken clouds
  • 2 hours of bright sunshine2
    hours of sunshine
  • UV (maximum) index 2 (Low)2
    UV index (Low)
  • 0 cm of snow expected0
    cm of snow expected
  • -5°C wind chill-5
    °C wind chill
  • Light breeze of 7 kph from the East7
    kph wind from E

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Allentown weather for Saturday 6th December 2025

Expect broken clouds in Allentown, Pennsylvania with a maximum temperature of 2°C, maximum UV of 2 (Low) and 1 hour of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 11 kph from the south-west.

  • 2°C maximum temperature2
    °C maximum temperature
  • -3°C minimum temperature-3
    °C minimum temperature
  • Broken clouds
    broken clouds
  • 1 hour of bright sunshine1
    hour of sunshine
  • UV (maximum) index 2 (Low)2
    UV index (Low)
  • 0 mm of rainfall expected0
    mm of rainfall expected
  • -1°C wind chill-1
    °C wind chill
  • Light breeze of 11 kph from the South-West11
    kph wind from SW

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Allentown weather for Sunday 7th December 2025

Expect mostly cloudy with light snow in Allentown, Pennsylvania with a maximum temperature of 3°C, maximum UV of 2 (Low) and 3 hours of bright sunshine. There are 0-2 cm of snow expected with 65% chance of some snow and a light breeze of 10 kph from the south-west.

  • 3°C maximum temperature3
    °C maximum temperature
  • -3°C minimum temperature-3
    °C minimum temperature
  • Mostly cloudy with light snow
    mostly cloudy with light snow
  • 3 hours of bright sunshine3
    hours of sunshine
  • UV (maximum) index 2 (Low)2
    UV index (Low)
  • 65% chance of some snow65
    % chance of some snow
  • 0-2 cm of snow expected<2
    cm of snow expected
  • 1°C wind chill1
    °C wind chill
  • Light breeze of 10 kph from the South-West10
    kph wind from SW

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Allentown weather for Monday 8th December 2025

Expect clear skies with flurries of snow in Allentown, Pennsylvania with a maximum temperature of 0°C, maximum UV of 2 (Low) and 8 hours of bright sunshine. There are 0-2 cm of snow expected with 4% chance of some snow and a moderate breeze of 21 kph from the north.

  • 0°C maximum temperature0
    °C maximum temperature
  • -10°C minimum temperature-10
    °C minimum temperature
  • Clear skies with flurries of snow
    clear skies with flurries of snow
  • 8 hours of bright sunshine8
    hours of sunshine
  • UV (maximum) index 2 (Low)2
    UV index (Low)
  • 4% chance of some snow4
    % chance of some snow
  • 0-2 cm of snow expected<2
    cm of snow expected
  • -6°C wind chill-6
    °C wind chill
  • Moderate breeze of 21 kph from the North21
    kph wind from N

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Allentown weather for Tuesday 9th December 2025

Expect broken clouds in Allentown, Pennsylvania with a maximum temperature of -1°C, maximum UV of 2 (Low) and 1 hour of bright sunshine. There are 0 cm of snow expected and a gentle breeze of 13 kph from the south-west.

  • -1°C maximum temperature-1
    °C maximum temperature
  • -11°C minimum temperature-11
    °C minimum temperature
  • Broken clouds
    broken clouds
  • 1 hour of bright sunshine1
    hour of sunshine
  • UV (maximum) index 2 (Low)2
    UV index (Low)
  • 0 cm of snow expected0
    cm of snow expected
  • -5°C wind chill-5
    °C wind chill
  • Gentle breeze of 13 kph from the South-West13
    kph wind from SW

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

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