Allentown weather live forecast

Today's maximum temperature in Allentown is expected to be 24°C. Select a day from the live weather forecast for Allentown, Pennsylvania, USA for more weather parameters.

Monday
15th Jun
24

16

10

9
Tuesday
16th Jun
24

13

12

8
Wednesday
17th Jun
25

15

3

7
Thursday
18th Jun
30

18

4

7
Friday
19th Jun
28

18

9

7

5-day weather forecast updated at 04:01 on Monday 15th June 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 15th June 2026

Expect isolated thunderstorms in Allentown, Pennsylvania with a maximum temperature of 24°C, maximum UV of 9 (Very High) and 10 hours of bright sunshine. There are 2-5 mm of rainfall expected with 5% chance of some rain and a gentle breeze of 17 kph from the north-west.

24
°C maximum temperature
16
°C minimum temperature
isolated thunderstorms
10
hours of sunshine
9
UV index (Very High)
5
% chance of some rain
<5
mm of rainfall expected
24
°C wind chill
17
kph wind from NW

Allentown weather for Tuesday 16th June 2026

Expect scattered clouds in Allentown, Pennsylvania with a maximum temperature of 24°C, maximum UV of 8 (Very High) and 12 hours of bright sunshine. There are 0 mm of rainfall expected and little or no wind of 6 kph from the west.

24
°C maximum temperature
13
°C minimum temperature
scattered clouds
12
hours of sunshine
8
UV index (Very High)
0
mm of rainfall expected
24
°C wind chill
6
kph wind from W

Allentown weather for Wednesday 17th June 2026

Expect isolated thunderstorms in Allentown, Pennsylvania with a maximum temperature of 25°C, maximum UV of 7 (High) and 3 hours of bright sunshine. There are 5-10 mm of rainfall expected with 67% chance of some rain and a gentle breeze of 13 kph from the south.

25
°C maximum temperature
15
°C minimum temperature
isolated thunderstorms
3
hours of sunshine
7
UV index (High)
67
% chance of some rain
<10
mm of rainfall expected
0
no heat & humidity
13
kph wind from S

Allentown weather for Thursday 18th June 2026

Expect isolated thunderstorms in Allentown, Pennsylvania with a maximum temperature of 30°C, moderate levels of heat & humidity, maximum UV of 7 (High) and 4 hours of bright sunshine. There are 10-20 mm of rainfall expected with 76% chance of some rain and a moderate breeze of 21 kph from the south-west.

30
°C maximum temperature
18
°C minimum temperature
isolated thunderstorms
4
hours of sunshine
7
UV index (High)
76
% chance of some rain
<20
mm of rainfall expected
M
moderate heat & humidity
21
kph wind from SW

Allentown weather for Friday 19th June 2026

Expect isolated thunderstorms in Allentown, Pennsylvania with a maximum temperature of 28°C, low levels of heat & humidity, maximum UV of 7 (High) and 9 hours of bright sunshine. There are 2-5 mm of rainfall expected with 29% chance of some rain and a gentle breeze of 19 kph from the west.