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.

Thursday
4th Dec
2

-7

3

1
Friday
5th Dec
-2

-8

1

2
Saturday
6th Dec
2

-3

3

1
Sunday
7th Dec
2

-4

2

1
Monday
8th Dec
-3

-7

1

2

5-day weather forecast updated at 04:01 on Thursday 4th 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 Thursday 4th December 2025

Expect scattered clouds in Allentown, Pennsylvania with a maximum temperature of 2°C, maximum UV of 1 (Low) and 3 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 22 kph from the west.

2
°C maximum temperature
-7
°C minimum temperature
scattered clouds
3
hours of sunshine
1
UV index (Low)
0
mm of rainfall expected
-2
°C wind chill
22
kph wind from W

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 1 hour of bright sunshine. There are 0 cm of snow expected and a light breeze of 8 kph from the south.

-2
°C maximum temperature
-8
°C minimum temperature
broken clouds
1
hour of sunshine
2
UV index (Low)
0
cm of snow expected
-5
°C wind chill
8
kph wind from S

Allentown weather for Saturday 6th December 2025

Expect broken clouds in Allentown, Pennsylvania with a maximum temperature of 2°C, maximum UV of 1 (Low) and 3 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 11 kph from the west.

2
°C maximum temperature
-3
°C minimum temperature
broken clouds
3
hours of sunshine
1
UV index (Low)
0
mm of rainfall expected
-1
°C wind chill
11
kph wind from W

Allentown weather for Sunday 7th December 2025

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

2
°C maximum temperature
-4
°C minimum temperature
broken clouds
2
hours of sunshine
1
UV index (Low)
0
mm of rainfall expected
-1
°C wind chill
11
kph wind from W

Allentown weather for Monday 8th December 2025

Expect broken clouds in Allentown, Pennsylvania with a maximum temperature of -3°C, maximum UV of 2 (Low) and 1 hour of bright sunshine. There are 0 cm of snow expected and a gentle breeze of 16 kph from the north.

-3
°C maximum temperature
-7
°C minimum temperature
broken clouds
1
hour of sunshine
2
UV index (Low)
0
cm of snow expected
-8
°C wind chill
16
kph wind from N

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

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Pennsylvania - quick facts
Flight time^✝	8 hours
Time difference	UK -5 hours
Language(s)	English
Currency	US Dollar
Electricity	A + B plug (120V)
Driving side	Right
Visa^✝	Yes
Why visit?	Culture
Tourist info	Pennsylvania Department of Community & Economic Development