S
M
T
W
T
F
S
1
36°
18°
2
46°
19°
3
39°
36°
4
50°
37°
5
55°
41°
6
70°
34°
7
48°
30°
8
70°
32°
9
73°
41°
10
59°
36°
11
43°
27°
12
63°
23°
13
52°
30°
14
57°
32°
15
45°
10°
16
19°
5°
17
28°
5°
18
70°
21°
19
77°
34°
20
82°
37°
21
91°
43°
22
59°
27°
23
52°
21°
24
61°
30°
25
79°
45°
26
68°
36°
27
50°
23°
28
59°
16°
29
73°
43°
30
86°
37°
31
66°
41°
1
48°
34°
2
45°
39°
3
41°
37°
4
45°
34°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
March Weather in Walnut
Walnut'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 Walnut. See also: April | May | June.
