Allentown weather live forecast

Today's maximum temperature in Allentown is expected to be 3°C. Select a day from the live weather forecast for Allentown, Pennsylvania, USA for more weather parameters.

Monday
22nd Dec
3

-5

6

1
Tuesday
23rd Dec
2

-1

0

0
Wednesday
24th Dec
5

-3

7

2
Thursday
25th Dec
5

-3

2

1
Friday
26th Dec
9

1

0

0

5-day weather forecast updated at 04:01 on Monday 22nd 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 Monday 22nd December 2025

Expect clear skies with flurries of snow in Allentown, Pennsylvania with a maximum temperature of 3°C, maximum UV of 1 (Low) and 6 hours of bright sunshine. There are 0-2 cm of snow expected with 25% chance of some snow and a light breeze of 12 kph from the west.

3
°C maximum temperature
-5
°C minimum temperature
clear skies with flurries of snow
6
hours of sunshine
1
UV index (Low)
25
% chance of some snow
<2
cm of snow expected
0
°C wind chill
12
kph wind from W

Allentown weather for Tuesday 23rd 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 65% chance of some sleet or snow and a light breeze of 11 kph from the west.

2
°C maximum temperature
-1
°C minimum temperature
cloudy with sleet or snow
0
hours of sunshine
0
UV index (None)
65
% chance of some sleet or snow
<10
mm of sleet/snow expected
-1
°C wind chill
11
kph wind from W

Allentown weather for Wednesday 24th December 2025

Expect broken clouds in Allentown, Pennsylvania with a maximum temperature of 5°C, maximum UV of 2 (Low) and 7 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 19 kph from the north-west.

5
°C maximum temperature
-3
°C minimum temperature
broken clouds
7
hours of sunshine
2
UV index (Low)
0
mm of rainfall expected
2
°C wind chill
19
kph wind from NW

Allentown weather for Thursday 25th December 2025

Expect mostly cloudy with light rain in Allentown, Pennsylvania with a maximum temperature of 5°C, maximum UV of 1 (Low) and 2 hours of bright sunshine. There are 0-2 mm of rainfall expected with 26% chance of some rain and a light breeze of 9 kph from the south-west.

5
°C maximum temperature
-3
°C minimum temperature
mostly cloudy with light rain
2
hours of sunshine
1
UV index (Low)
26
% chance of some rain
<2
mm of rainfall expected
3
°C wind chill
9
kph wind from SW

Allentown weather for Friday 26th December 2025

Expect cloudy with some rain in Allentown, Pennsylvania with a maximum temperature of 9°C and no hours of bright sunshine. There are 5-10 mm of rainfall expected with 75% chance of some rain and a light breeze of 12 kph from the south-east.