Allentown weather live forecast

Today's maximum temperature in Allentown is expected to be 8°C. Select a day from the live weather forecast for Allentown, Pennsylvania, USA for more weather parameters.

Thursday
5th Mar
8

4

0

1
Friday
6th Mar
8

4

0

1
Saturday
7th Mar
13

4

0

2
Sunday
8th Mar
18

7

8

5
Monday
9th Mar
20

5

11

5

5-day weather forecast updated at 04:01 on Thursday 5th March 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 Thursday 5th March 2026

Expect cloudy with some rain in Allentown, Pennsylvania with a maximum temperature of 8°C, maximum UV of 1 (Low) and no hours of bright sunshine. There are 20-30 mm of rainfall expected with 100% chance of some rain and a gentle breeze of 13 kph from the east.

8
°C maximum temperature
4
°C minimum temperature
cloudy with some rain
0
hours of sunshine
1
UV index (Low)
100
% chance of some rain
<30
mm of rainfall expected
6
°C wind chill
13
kph wind from E

Allentown weather for Friday 6th March 2026

Expect overcast with light rain in Allentown, Pennsylvania with a maximum temperature of 8°C, maximum UV of 1 (Low) and no hours of bright sunshine. There are 5-10 mm of rainfall expected with 36% chance of some rain and a light breeze of 11 kph from the east.

8
°C maximum temperature
4
°C minimum temperature
overcast with light rain
0
hours of sunshine
1
UV index (Low)
36
% chance of some rain
<10
mm of rainfall expected
6
°C wind chill
11
kph wind from E

Allentown weather for Saturday 7th March 2026

Expect mostly cloudy with light rain in Allentown, Pennsylvania with a maximum temperature of 13°C, maximum UV of 2 (Low) and no hours of bright sunshine. There are 0-2 mm of rainfall expected with 93% chance of some rain and a light breeze of 11 kph from the south.

13
°C maximum temperature
4
°C minimum temperature
mostly cloudy with light rain
0
hours of sunshine
2
UV index (Low)
93
% chance of some rain
<2
mm of rainfall expected
13
°C wind chill
11
kph wind from S

Allentown weather for Sunday 8th March 2026

Expect sunshine and showers in Allentown, Pennsylvania with a maximum temperature of 18°C, maximum UV of 5 (Moderate) and 8 hours of bright sunshine. There are 0-2 mm of rainfall expected with 12% chance of some rain and a gentle breeze of 13 kph from the west.

18
°C maximum temperature
7
°C minimum temperature
sunshine and showers
8
hours of sunshine
5
UV index (Moderate)
12
% chance of some rain
<2
mm of rainfall expected
0
no heat & humidity
13
kph wind from W

Allentown weather for Monday 9th March 2026

Expect scattered clouds in Allentown, Pennsylvania with a maximum temperature of 20°C, maximum UV of 5 (Moderate) and 11 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 14 kph from the south-west.