Weather information for the Allentown area is provided below. Average temperatures, climate details and current forecasts are included.
Climate
Monthly average temperatures and precipitation for Allentown are shown below.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
| Avg. High | 34° | 37° | 48° | 60° | 71° | 80° | 84° | 82° | 75° | 64° | 51° | 38° |
| Avg. Low | 18° | 20° | 28° | 38° | 48° | 58° | 64° | 62° | 54° | 42° | 34° | 24° |
| Daily Avg | 27° | 28° | 38° | 50° | 60° | 68° | 74° | 72° | 65° | 54° | 44° | 32° |
| Avg. Precip. | 3.3 in | 3.0 in | 3.3 in | 3.5 in | 4.3 in | 3.8 in | 4.1 in | 4.3 in | 3.9 in | 2.9 in | 3.9 in | 3.5 in |
| Note: All temperatures are in degrees Fahrenheit. | ||||||||||||
Current Weather
21.6°F (-5.8°C) Clear Feels like 22 F (-6 C) Wind Calm 0.00 in (0 mm) precipitation
