Allentown weather live forecast

Today's maximum temperature in Allentown is expected to be 12°C. Select a day from the live weather forecast for Allentown, Pennsylvania, USA for more weather parameters.

Thursday
8th Jan
12

0

8

1
Friday
9th Jan
9

0

3

1
Saturday
10th Jan
8

4

0

1
Sunday
11th Jan
7

0

7

2
Monday
12th Jan
4

-1

4

1

5-day weather forecast updated at 04:01 on Friday 9th January 2026 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 8th January 2026

Expect scattered clouds in Allentown, Pennsylvania with a maximum temperature of 12°C, maximum UV of 1 (Low) and 8 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 8 kph from the west.

12
°C maximum temperature
0
°C minimum temperature
scattered clouds
8
hours of sunshine
1
UV index (Low)
0
mm of rainfall expected
12
°C wind chill
8
kph wind from W

Allentown weather for Friday 9th January 2026

Expect mostly cloudy with light rain in Allentown, Pennsylvania with a maximum temperature of 9°C, maximum UV of 1 (Low) and 3 hours of bright sunshine. There are 0-2 mm of rainfall expected with 93% chance of some rain and a gentle breeze of 13 kph from the south.

9
°C maximum temperature
0
°C minimum temperature
mostly cloudy with light rain
3
hours of sunshine
1
UV index (Low)
93
% chance of some rain
<2
mm of rainfall expected
7
°C wind chill
13
kph wind from S

Allentown weather for Saturday 10th January 2026

Expect overcast with light rain in Allentown, Pennsylvania with a maximum temperature of 8°C, maximum UV of 1 (Low) and no hours of bright sunshine. There are 10-20 mm of rainfall expected with 100% chance of some rain and a light breeze of 10 kph from the east.

8
°C maximum temperature
4
°C minimum temperature
overcast with light rain
0
hours of sunshine
1
UV index (Low)
100
% chance of some rain
<20
mm of rainfall expected
6
°C wind chill
10
kph wind from E

Allentown weather for Sunday 11th January 2026

Expect broken clouds in Allentown, Pennsylvania with a maximum temperature of 7°C, maximum UV of 2 (Low) and 7 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 23 kph from the west.

7
°C maximum temperature
0
°C minimum temperature
broken clouds
7
hours of sunshine
2
UV index (Low)
0
mm of rainfall expected
3
°C wind chill
23
kph wind from W

Allentown weather for Monday 12th January 2026

Expect scattered clouds in Allentown, Pennsylvania with a maximum temperature of 4°C, maximum UV of 1 (Low) and 4 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 22 kph from the west.