Allentown weather live forecast

Today's maximum temperature in Allentown is expected to be 19°C. Select a day from the live weather forecast for Allentown, Pennsylvania, USA for more weather parameters.

Monday
19th Oct
19

2

11

4
Tuesday
20th Oct
18

7

11

4
Wednesday
21st Oct
17

7

10

4
Thursday
22nd Oct
18

6

11

4
Friday
23rd Oct
16

5

11

4

5-day weather forecast updated at 04:01 on Monday 19th 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 19th October 2026

Expect clear skies in Allentown, Pennsylvania with a maximum temperature of 19°C, maximum UV of 4 (Moderate) and 11 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 8 kph from the north.

19
°C maximum temperature
2
°C minimum temperature
clear skies
11
hours of sunshine
4
UV index (Moderate)
0
mm of rainfall expected
19
°C wind chill
8
kph wind from N

Allentown weather for Tuesday 20th October 2026

Expect clear skies in Allentown, Pennsylvania with a maximum temperature of 18°C, maximum UV of 4 (Moderate) and 11 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 14 kph from the north.

18
°C maximum temperature
7
°C minimum temperature
clear skies
11
hours of sunshine
4
UV index (Moderate)
0
mm of rainfall expected
18
°C wind chill
14
kph wind from N

Allentown weather for Wednesday 21st October 2026

Expect clear skies in Allentown, Pennsylvania with a maximum temperature of 17°C, maximum UV of 4 (Moderate) and 10 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 14 kph from the north.

17
°C maximum temperature
7
°C minimum temperature
clear skies
10
hours of sunshine
4
UV index (Moderate)
0
mm of rainfall expected
0
no heat & humidity
14
kph wind from N

Allentown weather for Thursday 22nd October 2026

18
°C maximum temperature
6
°C minimum temperature
clear skies
11
hours of sunshine
4
UV index (Moderate)
0
mm of rainfall expected
0
no heat & humidity
15
kph wind from N

Allentown weather for Friday 23rd October 2026

Expect clear skies in Allentown, Pennsylvania with a maximum temperature of 16°C, maximum UV of 4 (Moderate) and 11 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 10 kph from the north.