S
M
T
W
T
F
S
1
43°
24°
2
36°
16°
3
35°
29°
4
45°
34°
5
46°
41°
6
41°
36°
7
48°
37°
8
68°
38°
9
72°
31°
10
80°
36°
11
78°
47°
12
62°
33°
13
46°
25°
14
51°
26°
15
46°
33°
16
67°
36°
17
37°
25°
18
37°
19°
19
48°
31°
20
66°
30°
21
53°
43°
22
71°
44°
23
55°
33°
24
47°
32°
25
57°
26°
26
76°
45°
27
59°
30°
28
44°
25°
29
57°
23°
30
71°
36°
31
80°
55°
1
77°
50°
2
50°
40°
3
61°
40°
4
78°
45°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
March Weather in Lehigh Valley
Lehigh Valley's March 2026 forecast shows daily high temperatures ranging from 78° to 78°, with overnight lows between 45° and 45°. The average high for March is 78° with an average low of 45°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how March weather will actually feel in Lehigh Valley. See also: April | May | June.
