Allentown weather live forecast

Today's maximum temperature in Allentown is expected to be 29°C. Select a day from the live weather forecast for Allentown, Pennsylvania, USA for more weather parameters.

Sunday
5th Jul
29

22

5

4
Monday
6th Jul
22

19

0

2
Tuesday
7th Jul
24

19

0

3
Wednesday
8th Jul
26

19

6

5
Thursday
9th Jul
29

20

9

9

5-day weather forecast updated at 04:01 on Sunday 5th July 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 Sunday 5th July 2026

Expect isolated thunderstorms in Allentown, Pennsylvania with a maximum temperature of 29°C, moderate levels of heat & humidity, maximum UV of 4 (Moderate) and 5 hours of bright sunshine. There are 20-30 mm of rainfall expected with 99% chance of some rain and a light breeze of 8 kph from the east.

29
°C maximum temperature
22
°C minimum temperature
isolated thunderstorms
5
hours of sunshine
4
UV index (Moderate)
99
% chance of some rain
<30
mm of rainfall expected
M
moderate heat & humidity
8
kph wind from E

Allentown weather for Monday 6th July 2026

Expect isolated thunderstorms in Allentown, Pennsylvania with a maximum temperature of 22°C, maximum UV of 2 (Low) and no hours of bright sunshine. There are 30-40 mm of rainfall expected with 99% chance of some rain and a gentle breeze of 15 kph from the north-east.

22
°C maximum temperature
19
°C minimum temperature
isolated thunderstorms
0
hours of sunshine
2
UV index (Low)
99
% chance of some rain
<40
mm of rainfall expected
0
no heat & humidity
15
kph wind from NE

Allentown weather for Tuesday 7th July 2026

Expect isolated thunderstorms in Allentown, Pennsylvania with a maximum temperature of 24°C, maximum UV of 3 (Moderate) and no hours of bright sunshine. There are 10-20 mm of rainfall expected with 78% chance of some rain and a light breeze of 12 kph from the north-east.

24
°C maximum temperature
19
°C minimum temperature
isolated thunderstorms
0
hours of sunshine
3
UV index (Moderate)
78
% chance of some rain
<20
mm of rainfall expected
24
°C wind chill
12
kph wind from NE

Allentown weather for Wednesday 8th July 2026

Expect broken clouds in Allentown, Pennsylvania with a maximum temperature of 26°C, low levels of heat & humidity, maximum UV of 5 (Moderate) and 6 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 8 kph from the north-east.

26
°C maximum temperature
19
°C minimum temperature
broken clouds
6
hours of sunshine
5
UV index (Moderate)
0
mm of rainfall expected
L
low heat & humidity
8
kph wind from NE

Allentown weather for Thursday 9th July 2026

Expect sunshine and showers in Allentown, Pennsylvania with a maximum temperature of 29°C, moderate levels of heat & humidity, maximum UV of 9 (Very High) and 9 hours of bright sunshine. There are 0-2 mm of rainfall expected with 52% chance of some rain and a gentle breeze of 13 kph from the south-west.