S
M
T
W
T
F
S
30
107°
81°
31
108°
84°
1
107°
85°
2
109°
85°
3
108°
82°
4
100°
79°
5
99°
79°
6
100°
78°
7
99°
78°
8
100°
79°
9
100°
78°
10
101°
76°
11
99°
76°
12
99°
77°
13
100°
75°
14
98°
76°
15
98°
76°
16
99°
75°
17
98°
74°
18
97°
74°
19
98°
75°
20
98°
77°
21
97°
76°
22
94°
78°
23
96°
81°
24
Hist. Avg.
98°
75°
25
Hist. Avg.
97°
75°
26
Hist. Avg.
97°
74°
27
Hist. Avg.
97°
74°
28
Hist. Avg.
96°
74°
29
Hist. Avg.
96°
73°
30
Hist. Avg.
96°
73°
1
Hist. Avg.
95°
72°
2
Hist. Avg.
95°
72°
3
Hist. Avg.
94°
71°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Tempe Junction
Tempe Junction's September 2026 forecast shows daily high temperatures ranging from 94° to 109°, with overnight lows between 74° and 85°. The average high for September is 100° with an average low of 78°. 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 Tempe Junction. See also: October | November | December.
