S
M
T
W
T
F
S
1
88°
67°
2
88°
67°
3
89°
66°
4
90°
71°
5
87°
71°
6
88°
72°
7
81°
59°
8
63°
56°
9
79°
62°
10
85°
72°
11
86°
62°
12
72°
49°
13
83°
43°
14
90°
53°
15
99°
56°
16
61°
44°
17
68°
35°
18
79°
42°
19
85°
51°
20
92°
53°
21
94°
54°
22
94°
56°
23
86°
60°
24
89°
63°
25
91°
70°
26
89°
70°
27
87°
61°
28
73°
58°
29
84°
56°
30
90°
67°
31
91°
69°
1
89°
72°
2
89°
71°
3
86°
73°
4
75°
56°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
March Weather in Phoenix
Phoenix's March 2026 forecast shows daily high temperatures ranging from 75° to 75°, with overnight lows between 56° and 56°. The average high for March is 75° with an average low of 56°. 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 Phoenix. See also: April | May | June.