Allentown weather live forecast

Today's maximum temperature in Allentown is expected to be -2°C. Select a day from the live weather forecast for Allentown, Pennsylvania, USA for more weather parameters.

Friday
23rd Jan
-2

-14

6

2
Saturday
24th Jan
-9

-16

3

2
Sunday
25th Jan
-8

-13

0

1
Monday
26th Jan
-4

-10

1

1
Tuesday
27th Jan
-10

-16

4

2

5-day weather forecast updated at 04:02 on Friday 23rd January 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 Friday 23rd January 2026

Expect broken clouds in Allentown, Pennsylvania with a maximum temperature of -2°C, maximum UV of 2 (Low) and 6 hours of bright sunshine. There are 0 cm of snow expected and a moderate breeze of 22 kph from the west.

-2
°C maximum temperature
-14
°C minimum temperature
broken clouds
6
hours of sunshine
2
UV index (Low)
0
cm of snow expected
-8
°C wind chill
22
kph wind from W

Allentown weather for Saturday 24th January 2026

Expect broken clouds in Allentown, Pennsylvania with a maximum temperature of -9°C, maximum UV of 2 (Low) and 3 hours of bright sunshine. There are 0 cm of snow expected and a gentle breeze of 15 kph from the north-west.

-9
°C maximum temperature
-16
°C minimum temperature
broken clouds
3
hours of sunshine
2
UV index (Low)
0
cm of snow expected
-15
°C wind chill
15
kph wind from NW

Allentown weather for Sunday 25th January 2026

Expect cloudy with some snow in Allentown, Pennsylvania with a maximum temperature of -8°C, maximum UV of 1 (Low) and no hours of bright sunshine. There are 10-20 cm of snow expected with 100% chance of some snow and a gentle breeze of 19 kph from the north-east.

-8
°C maximum temperature
-13
°C minimum temperature
cloudy with some snow
0
hours of sunshine
1
UV index (Low)
100
% chance of some snow
<20
cm of snow expected
-15
°C wind chill
19
kph wind from NE

Allentown weather for Monday 26th January 2026

Expect mostly cloudy with snow in Allentown, Pennsylvania with a maximum temperature of -4°C, maximum UV of 1 (Low) and 1 hour of bright sunshine. There are 10-20 cm of snow expected with 68% chance of some snow and a moderate breeze of 22 kph from the north-west.

-4
°C maximum temperature
-10
°C minimum temperature
mostly cloudy with snow
1
hour of sunshine
1
UV index (Low)
68
% chance of some snow
<20
cm of snow expected
-10
°C wind chill
22
kph wind from NW

Allentown weather for Tuesday 27th January 2026

Expect broken clouds in Allentown, Pennsylvania with a maximum temperature of -10°C, maximum UV of 2 (Low) and 4 hours of bright sunshine. There are 0 cm of snow expected and a moderate breeze of 21 kph from the west.