S
M
T
W
T
F
S
30
76°
67°
31
87°
71°
1
87°
74°
2
94°
73°
3
94°
70°
4
80°
69°
5
80°
64°
6
78°
60°
7
N/A
8
83°
69°
9
87°
69°
10
77°
57°
11
79°
62°
12
83°
63°
13
81°
66°
14
83°
64°
15
80°
58°
16
75°
57°
17
76°
57°
18
77°
55°
19
75°
56°
20
73°
52°
21
78°
57°
22
70°
57°
23
72°
56°
24
76°
56°
25
79°
57°
26
79°
56°
27
77°
56°
28
78°
57°
29
79°
57°
30
79°
56°
1
78°
55°
2
75°
49°
3
64°
45°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Fremont
Fremont's September 2026 forecast shows daily high temperatures ranging from 64° to 87°, with overnight lows between 45° and 69°. The average high for September is 77° with an average low of 58°. 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.
