Allentown weather live forecast

Today's maximum temperature in Allentown is expected to be 17°C. Select a day from the live weather forecast for Allentown, Pennsylvania, USA for more weather parameters.

Thursday
12th Mar
17

0

1

1
Friday
13th Mar
9

-1

5

2
Saturday
14th Mar
11

2

11

4
Sunday
15th Mar
10

1

0

3
Monday
16th Mar
18

1

0

1

5-day weather forecast updated at 04:01 on Thursday 12th 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 12th March 2026

Expect isolated thunderstorms in Allentown, Pennsylvania with a maximum temperature of 17°C, maximum UV of 1 (Low) and 1 hour of bright sunshine. There are 2-5 mm of rainfall expected with 57% chance of some rain and a moderate breeze of 22 kph from the north-west.

17
°C maximum temperature
0
°C minimum temperature
isolated thunderstorms
1
hour of sunshine
1
UV index (Low)
57
% chance of some rain
<5
mm of rainfall expected
17
°C wind chill
22
kph wind from NW

Allentown weather for Friday 13th March 2026

Expect scattered clouds in Allentown, Pennsylvania with a maximum temperature of 9°C, maximum UV of 2 (Low) and 5 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 25 kph from the south.

9
°C maximum temperature
-1
°C minimum temperature
scattered clouds
5
hours of sunshine
2
UV index (Low)
0
mm of rainfall expected
6
°C wind chill
25
kph wind from S

Allentown weather for Saturday 14th March 2026

Expect scattered clouds in Allentown, Pennsylvania with a maximum temperature of 11°C, maximum UV of 4 (Moderate) and 11 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 23 kph from the west.

11
°C maximum temperature
2
°C minimum temperature
scattered clouds
11
hours of sunshine
4
UV index (Moderate)
0
mm of rainfall expected
11
°C wind chill
23
kph wind from W

Allentown weather for Sunday 15th March 2026

Expect overcast with light rain in Allentown, Pennsylvania with a maximum temperature of 10°C, maximum UV of 3 (Moderate) and no hours of bright sunshine. There are 0-2 mm of rainfall expected with 34% chance of some rain and a gentle breeze of 19 kph from the south-east.

10
°C maximum temperature
1
°C minimum temperature
overcast with light rain
0
hours of sunshine
3
UV index (Moderate)
34
% chance of some rain
<2
mm of rainfall expected
0
no heat & humidity
19
kph wind from SE

Allentown weather for Monday 16th March 2026

Expect cloudy with some rain in Allentown, Pennsylvania with a maximum temperature of 18°C, maximum UV of 1 (Low) and no hours of bright sunshine. There are 10-20 mm of rainfall expected with 96% chance of some rain and a moderate breeze of 25 kph from the south.