S
M
T
W
T
F
S
30
83°
59°
31
82°
59°
1
82°
58°
2
81°
61°
3
83°
60°
4
83°
58°
5
81°
55°
6
79°
53°
7
75°
57°
8
77°
58°
9
81°
59°
10
81°
60°
11
82°
59°
12
80°
57°
13
81°
57°
14
81°
56°
15
78°
55°
16
75°
53°
17
77°
55°
18
81°
58°
19
81°
59°
20
80°
57°
21
79°
58°
22
75°
57°
23
73°
53°
24
75°
55°
25
75°
53°
26
74°
52°
27
74°
52°
28
72°
50°
29
73°
51°
30
73°
53°
1
72°
59°
2
77°
58°
3
80°
57°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Fremont
Fremont's September 2026 forecast shows daily high temperatures ranging from 72° to 83°, with overnight lows between 50° and 61°. The average high for September is 78° with an average low of 56°. 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 Fremont. See also: October | November | December.
