S
M
T
W
T
F
S
1
43°
25°
2
39°
32°
3
46°
27°
4
46°
21°
5
36°
23°
6
37°
21°
7
36°
12°
8
50°
30°
9
54°
32°
10
34°
16°
11
34°
5°
12
48°
25°
13
52°
28°
14
43°
18°
15
28°
7°
16
44°
17°
17
57°
32°
18
64°
21°
19
68°
21°
20
68°
23°
21
72°
25°
22
59°
28°
23
59°
27°
24
63°
27°
25
70°
27°
26
55°
27°
27
54°
14°
28
64°
21°
29
63°
27°
30
61°
28°
31
48°
30°
1
50°
34°
2
34°
21°
3
39°
21°
4
48°
28°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
March Weather in Boulder
Boulder's March 2026 forecast shows daily high temperatures ranging from ° to °, with overnight lows between ° and °. The average high for March is ° with an average low of °. 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 Boulder. See also: April | May | June.
