Allentown weather live forecast

Today's maximum temperature in Allentown is expected to be 27°C. Select a day from the live weather forecast for Allentown, Pennsylvania, USA for more weather parameters.

Tuesday
9th Jun
27

14

9

8
Wednesday
10th Jun
27

17

4

8
Thursday
11th Jun
33

20

8

8
Friday
12th Jun
34

22

9

8
Saturday
13th Jun
31

21

12

9

5-day weather forecast updated at 04:01 on Tuesday 9th June 2026 GMT

More about Allentown

Allentown by month

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Recommended for Pennsylvania

British Airways: The Original Sale is now on

Sale

Save on holidays & flights worldwide in the BA sale
Explore trips to Europe, USA, Caribbean & beyond
Including New York, Los Angeles, Florida, Barbados & Dubai

Go to British Airways deal >>

Expires at 23:59 on Thursday 25th Jun 2026 · View all British Airways offers

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 Tuesday 9th June 2026

Expect scattered clouds in Allentown, Pennsylvania with a maximum temperature of 27°C, low levels of heat & humidity, maximum UV of 8 (Very High) and 9 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 11 kph from the south-west.

27
°C maximum temperature
14
°C minimum temperature
scattered clouds
9
hours of sunshine
8
UV index (Very High)
0
mm of rainfall expected
L
low heat & humidity
11
kph wind from SW

Allentown weather for Wednesday 10th June 2026

Expect isolated thunderstorms in Allentown, Pennsylvania with a maximum temperature of 27°C, low levels of heat & humidity, maximum UV of 8 (Very High) and 4 hours of bright sunshine. There are 2-5 mm of rainfall expected with 55% chance of some rain and a light breeze of 11 kph from the south.

27
°C maximum temperature
17
°C minimum temperature
isolated thunderstorms
4
hours of sunshine
8
UV index (Very High)
55
% chance of some rain
<5
mm of rainfall expected
L
low heat & humidity
11
kph wind from S

Allentown weather for Thursday 11th June 2026

Expect isolated thunderstorms in Allentown, Pennsylvania with a maximum temperature of 33°C, high levels of heat & humidity, maximum UV of 8 (Very High) and 8 hours of bright sunshine. There are 2-5 mm of rainfall expected with 47% chance of some rain and a light breeze of 12 kph from the west.

33
°C maximum temperature
20
°C minimum temperature
isolated thunderstorms
8
hours of sunshine
8
UV index (Very High)
47
% chance of some rain
<5
mm of rainfall expected
H
high heat & humidity
12
kph wind from W

Allentown weather for Friday 12th June 2026

Expect isolated thunderstorms in Allentown, Pennsylvania with a maximum temperature of 34°C, high levels of heat & humidity, maximum UV of 8 (Very High) and 9 hours of bright sunshine. There are 2-5 mm of rainfall expected with 69% chance of some rain and a light breeze of 9 kph from the west.

34
°C maximum temperature
22
°C minimum temperature
isolated thunderstorms
9
hours of sunshine
8
UV index (Very High)
69
% chance of some rain
<5
mm of rainfall expected
H
high heat & humidity
9
kph wind from W

Allentown weather for Saturday 13th June 2026

Expect isolated thunderstorms in Allentown, Pennsylvania with a maximum temperature of 31°C, moderate levels of heat & humidity, maximum UV of 9 (Very High) and 12 hours of bright sunshine. There are 0-2 mm of rainfall expected with 27% chance of some rain and a gentle breeze of 13 kph from the north-west.