Allentown weather live forecast

Today's maximum temperature in Allentown is expected to be 23°C. Select a day from the live weather forecast for Allentown, Pennsylvania, USA for more weather parameters.

Monday
12th Oct
23

12

8

5
Tuesday
13th Oct
24

12

6

5
Wednesday
14th Oct
26

17

3

5
Thursday
15th Oct
19

11

5

4
Friday
16th Oct
18

10

3

1

5-day weather forecast updated at 04:01 on Monday 12th October 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 12th October 2026

Expect broken clouds in Allentown, Pennsylvania with a maximum temperature of 23°C, maximum UV of 5 (Moderate) and 8 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 14 kph from the north-west.

23
°C maximum temperature
12
°C minimum temperature
broken clouds
8
hours of sunshine
5
UV index (Moderate)
0
mm of rainfall expected
23
°C wind chill
14
kph wind from NW

Allentown weather for Tuesday 13th October 2026

Expect broken clouds in Allentown, Pennsylvania with a maximum temperature of 24°C, maximum UV of 5 (Moderate) and 6 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 13 kph from the south-west.

24
°C maximum temperature
12
°C minimum temperature
broken clouds
6
hours of sunshine
5
UV index (Moderate)
0
mm of rainfall expected
24
°C wind chill
13
kph wind from SW

Allentown weather for Wednesday 14th October 2026

Expect mostly cloudy with light rain in Allentown, Pennsylvania with a maximum temperature of 26°C, low levels of heat & humidity, maximum UV of 5 (Moderate) and 3 hours of bright sunshine. There are 0-2 mm of rainfall expected with 18% chance of some rain and a gentle breeze of 14 kph from the west.

26
°C maximum temperature
17
°C minimum temperature
mostly cloudy with light rain
3
hours of sunshine
5
UV index (Moderate)
18
% chance of some rain
<2
mm of rainfall expected
L
low heat & humidity
14
kph wind from W

Allentown weather for Thursday 15th October 2026

Expect broken clouds in Allentown, Pennsylvania with a maximum temperature of 19°C, maximum UV of 4 (Moderate) and 5 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 11 kph from the north.

19
°C maximum temperature
11
°C minimum temperature
broken clouds
5
hours of sunshine
4
UV index (Moderate)
0
mm of rainfall expected
19
°C wind chill
11
kph wind from N

Allentown weather for Friday 16th October 2026

Expect mostly cloudy with rain in Allentown, Pennsylvania with a maximum temperature of 18°C, maximum UV of 1 (Low) and 3 hours of bright sunshine. There are 10-20 mm of rainfall expected with 72% chance of some rain and a moderate breeze of 21 kph from the west.