Allentown weather live forecast

Today's maximum temperature in Allentown is expected to be 9°C. Select a day from the live weather forecast for Allentown, Pennsylvania, USA for more weather parameters.

Wednesday
7th Jan
9

2

6

1
Thursday
8th Jan
8

1

4

1
Friday
9th Jan
8

2

0

1
Saturday
10th Jan
11

7

0

0
Sunday
11th Jan
10

-1

0

1

5-day weather forecast updated at 04:01 on Wednesday 7th 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 Wednesday 7th January 2026

Expect broken clouds in Allentown, Pennsylvania with a maximum temperature of 9°C, maximum UV of 1 (Low) and 6 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 20 kph from the west.

9
°C maximum temperature
2
°C minimum temperature
broken clouds
6
hours of sunshine
1
UV index (Low)
0
mm of rainfall expected
6
°C wind chill
20
kph wind from W

Allentown weather for Thursday 8th January 2026

Expect broken clouds in Allentown, Pennsylvania with a maximum temperature of 8°C, maximum UV of 1 (Low) and 4 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 10 kph from the west.

8
°C maximum temperature
1
°C minimum temperature
broken clouds
4
hours of sunshine
1
UV index (Low)
0
mm of rainfall expected
7
°C wind chill
10
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 8°C, maximum UV of 1 (Low) and no 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.

8
°C maximum temperature
2
°C minimum temperature
mostly cloudy with light rain
0
hours of sunshine
1
UV index (Low)
93
% chance of some rain
<2
mm of rainfall expected
6
°C wind chill
13
kph wind from S

Allentown weather for Saturday 10th January 2026

Expect cloudy with some rain in Allentown, Pennsylvania with a maximum temperature of 11°C and no hours of bright sunshine. There are 5-10 mm of rainfall expected with 98% chance of some rain and a gentle breeze of 13 kph from the south-east.

11
°C maximum temperature
7
°C minimum temperature
cloudy with some rain
0
hours of sunshine
0
UV index (None)
98
% chance of some rain
<10
mm of rainfall expected
11
°C wind chill
13
kph wind from SE

Allentown weather for Sunday 11th January 2026

Expect mostly cloudy with rain in Allentown, Pennsylvania with a maximum temperature of 10°C, maximum UV of 1 (Low) and no hours of bright sunshine. There are 5-10 mm of rainfall expected with 29% chance of some rain and a moderate breeze of 22 kph from the west.