S
M
T
W
T
F
S
30
90°
73°
31
88°
68°
1
92°
71°
2
95°
69°
3
94°
75°
4
94°
77°
5
92°
73°
6
86°
71°
7
89°
68°
8
90°
71°
9
83°
64°
10
83°
56°
11
87°
64°
12
73°
56°
13
61°
57°
14
82°
56°
15
71°
58°
16
69°
58°
17
80°
64°
18
95°
69°
19
74°
65°
20
64°
60°
21
66°
55°
22
64°
56°
23
73°
55°
24
63°
60°
25
63°
61°
26
71°
61°
27
72°
58°
28
74°
62°
29
71°
58°
30
70°
53°
1
72°
54°
2
72°
53°
3
69°
48°
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 63° to 74°, with overnight lows between 48° and 62°. The average high for September is 70° 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.
