S
M
T
W
T
F
S
30
84°
57°
31
80°
51°
1
78°
51°
2
77°
52°
3
78°
52°
4
78°
53°
5
77°
52°
6
75°
54°
7
75°
56°
8
77°
52°
9
76°
50°
10
75°
50°
11
74°
48°
12
75°
49°
13
74°
51°
14
73°
48°
15
74°
52°
16
74°
48°
17
73°
47°
18
74°
52°
19
73°
54°
20
72°
48°
21
74°
50°
22
Hist. Avg.
75°
52°
23
Hist. Avg.
75°
52°
24
Hist. Avg.
74°
52°
25
Hist. Avg.
74°
51°
26
Hist. Avg.
74°
51°
27
Hist. Avg.
73°
50°
28
Hist. Avg.
73°
50°
29
Hist. Avg.
72°
50°
30
Hist. Avg.
72°
49°
1
Hist. Avg.
72°
49°
2
Hist. Avg.
71°
48°
3
Hist. Avg.
71°
48°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Folsom
Folsom's September 2026 forecast shows daily high temperatures ranging from 72° to 84°, with overnight lows between 47° and 57°. The average high for September is 76° with an average low of 51°. 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 Folsom. See also: October | November | December.
