Allentown weather live forecast

Today's maximum temperature in Allentown is expected to be 22°C. Select a day from the live weather forecast for Allentown, Pennsylvania, USA for more weather parameters.

Monday
4th May
22

6

12

6
Tuesday
5th May
27

13

7

5
Wednesday
6th May
19

14

0

2
Thursday
7th May
15

9

4

2
Friday
8th May
17

6

7

6

5-day weather forecast updated at 04:01 on Monday 4th May 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 Monday 4th May 2026

Expect scattered clouds in Allentown, Pennsylvania with a maximum temperature of 22°C, maximum UV of 6 (High) and 12 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 17 kph from the south-west.

22
°C maximum temperature
6
°C minimum temperature
scattered clouds
12
hours of sunshine
6
UV index (High)
0
mm of rainfall expected
0
no heat & humidity
17
kph wind from SW

Allentown weather for Tuesday 5th May 2026

Expect broken clouds in Allentown, Pennsylvania with a maximum temperature of 27°C, low levels of heat & humidity, maximum UV of 5 (Moderate) and 7 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 24 kph from the south-west.

27
°C maximum temperature
13
°C minimum temperature
broken clouds
7
hours of sunshine
5
UV index (Moderate)
0
mm of rainfall expected
L
low heat & humidity
24
kph wind from SW

Allentown weather for Wednesday 6th May 2026

Expect cloudy with some rain in Allentown, Pennsylvania with a maximum temperature of 19°C, maximum UV of 2 (Low) and no hours of bright sunshine. There are 10-20 mm of rainfall expected with 95% chance of some rain and a gentle breeze of 18 kph from the south.

19
°C maximum temperature
14
°C minimum temperature
cloudy with some rain
0
hours of sunshine
2
UV index (Low)
95
% chance of some rain
<20
mm of rainfall expected
0
no heat & humidity
18
kph wind from S

Allentown weather for Thursday 7th May 2026

Expect mostly cloudy with rain in Allentown, Pennsylvania with a maximum temperature of 15°C, maximum UV of 2 (Low) and 4 hours of bright sunshine. There are 5-10 mm of rainfall expected with 68% chance of some rain and a light breeze of 10 kph from the north-west.

15
°C maximum temperature
9
°C minimum temperature
mostly cloudy with rain
4
hours of sunshine
2
UV index (Low)
68
% chance of some rain
<10
mm of rainfall expected
0
no heat & humidity
10
kph wind from NW

Allentown weather for Friday 8th May 2026

Expect sunshine and showers in Allentown, Pennsylvania with a maximum temperature of 17°C, maximum UV of 6 (High) and 7 hours of bright sunshine. There are 0-2 mm of rainfall expected with 25% chance of some rain and a gentle breeze of 18 kph from the west.