Allentown weather live forecast

Today's maximum temperature in Allentown is expected to be 10°C. Select a day from the live weather forecast for Allentown, Pennsylvania, USA for more weather parameters.

Wednesday
8th Apr
10

-3

13

5
Thursday
9th Apr
12

-2

10

6
Friday
10th Apr
19

2

9

6
Saturday
11th Apr
16

7

11

6
Sunday
12th Apr
19

4

13

6

5-day weather forecast updated at 04:01 on Wednesday 8th April 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 8th April 2026

Expect clear skies in Allentown, Pennsylvania with a maximum temperature of 10°C, maximum UV of 5 (Moderate) and 13 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 8 kph from the south-east.

10
°C maximum temperature
-3
°C minimum temperature
clear skies
13
hours of sunshine
5
UV index (Moderate)
0
mm of rainfall expected
0
no heat & humidity
8
kph wind from SE

Allentown weather for Thursday 9th April 2026

Expect scattered clouds in Allentown, Pennsylvania with a maximum temperature of 12°C, maximum UV of 6 (High) and 10 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 11 kph from the south.

12
°C maximum temperature
-2
°C minimum temperature
scattered clouds
10
hours of sunshine
6
UV index (High)
0
mm of rainfall expected
12
°C wind chill
11
kph wind from S

Allentown weather for Friday 10th April 2026

Expect broken clouds in Allentown, Pennsylvania with a maximum temperature of 19°C, maximum UV of 6 (High) and 9 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 14 kph from the south-west.

19
°C maximum temperature
2
°C minimum temperature
broken clouds
9
hours of sunshine
6
UV index (High)
0
mm of rainfall expected
0
no heat & humidity
14
kph wind from SW

Allentown weather for Saturday 11th April 2026

Expect scattered clouds in Allentown, Pennsylvania with a maximum temperature of 16°C, maximum UV of 6 (High) and 11 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 15 kph from the north.

16
°C maximum temperature
7
°C minimum temperature
scattered clouds
11
hours of sunshine
6
UV index (High)
0
mm of rainfall expected
0
no heat & humidity
15
kph wind from N

Allentown weather for Sunday 12th April 2026

Expect clear skies in Allentown, Pennsylvania with a maximum temperature of 19°C, maximum UV of 6 (High) and 13 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 11 kph from the south.