S
M
T
W
T
F
S
30
85°
47°
31
90°
49°
1
85°
54°
2
75°
48°
3
83°
48°
4
62°
55°
5
80°
56°
6
77°
54°
7
78°
44°
8
86°
34°
9
91°
49°
10
94°
56°
11
92°
52°
12
90°
49°
13
78°
39°
14
79°
43°
15
83°
45°
16
85°
47°
17
86°
52°
18
90°
55°
19
89°
51°
20
83°
47°
21
82°
46°
22
83°
46°
23
93°
47°
24
76°
48°
25
73°
42°
26
74°
46°
27
74°
43°
28
73°
45°
29
75°
47°
30
78°
48°
1
82°
48°
2
82°
47°
3
81°
47°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Fallon
Fallon's September 2026 forecast shows daily high temperatures ranging from 73° to 94°, with overnight lows between 39° and 56°. The average high for September is 82° with an average low of 47°. 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 Fallon. See also: October | November | December.
