S
M
T
W
T
F
S
1
36°
20°
2
29°
3°
3
32°
5°
4
54°
24°
5
42°
22°
6
34°
26°
7
48°
32°
8
55°
36°
9
66°
27°
10
76°
32°
11
53°
38°
12
60°
33°
13
42°
26°
14
46°
25°
15
41°
27°
16
65°
38°
17
60°
26°
18
37°
21°
19
40°
24°
20
56°
27°
21
51°
34°
22
45°
35°
23
37°
32°
24
47°
31°
25
54°
28°
26
65°
40°
27
53°
28°
28
39°
24°
29
53°
24°
30
72°
38°
31
62°
39°
1
74°
40°
2
42°
36°
3
66°
54°
4
61°
39°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
March Weather in Waltham
Waltham's March 2026 forecast shows daily high temperatures ranging from 61° to 66°, with overnight lows between 39° and 54°. The average high for March is 64° with an average low of 47°. 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 Waltham. See also: April | May | June.
