S
M
T
W
T
F
S
30
94°
74°
31
95°
75°
1
95°
76°
2
96°
75°
3
95°
73°
4
94°
72°
5
94°
73°
6
95°
76°
7
96°
72°
8
97°
74°
9
98°
71°
10
96°
70°
11
95°
70°
12
96°
72°
13
97°
74°
14
97°
72°
15
96°
75°
16
98°
75°
17
97°
74°
18
97°
69°
19
96°
71°
20
92°
70°
21
91°
69°
22
92°
68°
23
89°
68°
24
88°
66°
25
89°
67°
26
89°
67°
27
Hist. Avg.
94°
65°
28
Hist. Avg.
93°
64°
29
Hist. Avg.
93°
64°
30
Hist. Avg.
92°
64°
1
Hist. Avg.
92°
63°
2
Hist. Avg.
92°
63°
3
Hist. Avg.
92°
62°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Tucson
Tucson's September 2026 forecast shows daily high temperatures ranging from 88° to 98°, with overnight lows between 66° and 76°. The average high for September is 94° with an average low of 72°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how September weather will actually feel in Tucson. See also: October | November | December.
