S
M
T
W
T
F
S
30
86°
49°
31
86°
52°
1
87°
54°
2
90°
53°
3
86°
51°
4
84°
48°
5
93°
58°
6
92°
57°
7
93°
57°
8
Hist. Avg.
87°
53°
9
Hist. Avg.
86°
52°
10
Hist. Avg.
86°
52°
11
Hist. Avg.
86°
52°
12
Hist. Avg.
85°
52°
13
Hist. Avg.
85°
51°
14
Hist. Avg.
85°
51°
15
Hist. Avg.
84°
51°
16
Hist. Avg.
84°
50°
17
Hist. Avg.
84°
50°
18
Hist. Avg.
83°
50°
19
Hist. Avg.
83°
49°
20
Hist. Avg.
82°
49°
21
Hist. Avg.
82°
49°
22
Hist. Avg.
81°
48°
23
Hist. Avg.
81°
48°
24
Hist. Avg.
80°
48°
25
Hist. Avg.
80°
47°
26
Hist. Avg.
80°
47°
27
Hist. Avg.
79°
47°
28
Hist. Avg.
79°
46°
29
Hist. Avg.
78°
46°
30
Hist. Avg.
78°
46°
1
Hist. Avg.
77°
45°
2
Hist. Avg.
77°
45°
3
Hist. Avg.
76°
44°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Reno
Reno's September 2026 forecast shows daily high temperatures ranging from 84° to 93°, with overnight lows between 48° and 58°. The average high for September is 89° with an average low of 53°. 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 Reno. See also: October | November | December.