S
M
T
W
T
F
S
30
83°
49°
31
70°
51°
1
73°
58°
2
76°
57°
3
71°
53°
4
79°
51°
5
81°
51°
6
78°
51°
7
88°
52°
8
86°
58°
9
85°
57°
10
83°
56°
11
79°
59°
12
80°
57°
13
83°
56°
14
85°
57°
15
86°
56°
16
81°
53°
17
82°
54°
18
78°
57°
19
83°
57°
20
83°
56°
21
82°
56°
22
82°
55°
23
76°
56°
24
79°
55°
25
82°
56°
26
84°
57°
27
84°
58°
28
83°
57°
29
83°
56°
30
82°
57°
1
83°
56°
2
79°
56°
3
74°
55°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Novato
Novato's September 2026 forecast shows daily high temperatures ranging from 71° to 88°, with overnight lows between 51° and 59°. The average high for September is 81° 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 Novato. See also: October | November | December.
