Allentown weather live forecast

Tomorrow's maximum temperature in Allentown is expected to be 77°F.

5-day weather forecast updated at 04:01 on Thursday 1st May 2025 GMT

More about Allentown

Allentown by month

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Recommended for Pennsylvania

Lufthansa: Top flight offers worldwide

  • Latest flight offers & special deals from Lufthansa
  • Flights to Germany (including Frankfurt & Munich)
  • Plus destinations across Europe and around the world
Go to Lufthansa deal >>

View all Lufthansa offers

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 Thursday 1st May 2025

Expect sunshine and showers in Allentown, Pennsylvania with a maximum temperature of 77°F, maximum UV of 8 (Very High) and 7 hours of bright sunshine. There are 0-2 mm of rainfall expected with 46% chance of some rain and a gentle breeze of 10 mph from the south-east.

  • 77°F maximum temperature77
    °F maximum temperature
  • 46°F minimum temperature46
    °F minimum temperature
  • Sunshine and showers
    sunshine and showers
  • 7 hours of bright sunshine7
    hours of sunshine
  • UV (maximum) index 8 (Very High)8
    UV index (Very High)
  • 46% chance of some rain46
    % chance of some rain
  • 0-2 mm of rainfall expected<2
    mm of rainfall expected
  • No heat & humidity0
    no heat & humidity
  • Gentle breeze of 10 mph from the South-East10
    mph wind from SE

Back to top

Allentown weather for Friday 2nd May 2025

Expect broken clouds in Allentown, Pennsylvania with a maximum temperature of 84°F, low levels of heat & humidity, maximum UV of 7 (High) and 5 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 11 mph from the south-west.

  • 84°F maximum temperature84
    °F maximum temperature
  • 55°F minimum temperature55
    °F minimum temperature
  • Broken clouds
    broken clouds
  • 5 hours of bright sunshine5
    hours of sunshine
  • UV (maximum) index 7 (High)7
    UV index (High)
  • 0 mm of rainfall expected0
    mm of rainfall expected
  • Low heat & humidityL
    low heat & humidity
  • Gentle breeze of 11 mph from the South-West11
    mph wind from SW

Back to top

Allentown weather for Saturday 3rd May 2025

Expect isolated thunderstorms in Allentown, Pennsylvania with a maximum temperature of 81°F, low levels of heat & humidity, maximum UV of 5 (Moderate) and 4 hours of bright sunshine. There are 10-20 mm of rainfall expected with 97% chance of some rain and a gentle breeze of 11 mph from the south-west.

  • 81°F maximum temperature81
    °F maximum temperature
  • 59°F minimum temperature59
    °F minimum temperature
  • Isolated thunderstorms
    isolated thunderstorms
  • 4 hours of bright sunshine4
    hours of sunshine
  • UV (maximum) index 5 (Moderate)5
    UV index (Moderate)
  • 97% chance of some rain97
    % chance of some rain
  • 10-20 mm of rainfall expected<20
    mm of rainfall expected
  • Low heat & humidityL
    low heat & humidity
  • Gentle breeze of 11 mph from the South-West11
    mph wind from SW

Back to top

Allentown weather for Sunday 4th May 2025

Expect overcast with light rain in Allentown, Pennsylvania with a maximum temperature of 70°F, maximum UV of 2 (Low) and no hours of bright sunshine. There are 0-2 mm of rainfall expected with 55% chance of some rain and a gentle breeze of 8 mph from the east.

  • 70°F maximum temperature70
    °F maximum temperature
  • 59°F minimum temperature59
    °F minimum temperature
  • Overcast with light rain
    overcast with light rain
  • No hours of bright sunshine0
    hours of sunshine
  • UV (maximum) index 2 (Low)2
    UV index (Low)
  • 55% chance of some rain55
    % chance of some rain
  • 0-2 mm of rainfall expected<2
    mm of rainfall expected
  • No heat & humidity0
    no heat & humidity
  • Gentle breeze of 8 mph from the East8
    mph wind from E

Back to top

Allentown weather for Monday 5th May 2025

Expect cloudy with some rain in Allentown, Pennsylvania with a maximum temperature of 68°F, maximum UV of 8 (Very High) and no hours of bright sunshine. There are 5-10 mm of rainfall expected with 55% chance of some rain and a gentle breeze of 11 mph from the east.

  • 68°F maximum temperature68
    °F maximum temperature
  • 54°F minimum temperature54
    °F minimum temperature
  • Cloudy with some rain
    cloudy with some rain
  • No hours of bright sunshine0
    hours of sunshine
  • UV (maximum) index 8 (Very High)8
    UV index (Very High)
  • 55% chance of some rain55
    % chance of some rain
  • 5-10 mm of rainfall expected<10
    mm of rainfall expected
  • 68°F wind chill68
    °F wind chill
  • Gentle breeze of 11 mph from the East11
    mph wind from E

Back to top

Hostelworld: Top deals on accommodation

  • Explore cheap accommodation around the world
  • Choose from over 36,000 properties in over 170 countries
  • Get instant confirmation & 24/7 customer service
Go to Hostelworld deal >>

View all Hostelworld offers

Metric (°C)  |  Imperial (°F)

Back to top

More about the USA

Related posts

Popular travel offers

Explore holidays in the sun for less

More holidays

Airport parking

More parking

Airport lounges

More lounges

Top ^