S
M
T
W
T
F
S
30
83°
55°
31
82°
52°
1
81°
52°
2
80°
51°
3
79°
50°
4
78°
49°
5
78°
50°
6
79°
54°
7
79°
54°
8
80°
51°
9
79°
50°
10
79°
51°
11
80°
52°
12
78°
56°
13
80°
57°
14
84°
56°
15
84°
56°
16
83°
55°
17
81°
56°
18
83°
56°
19
84°
55°
20
85°
56°
21
83°
54°
22
82°
53°
23
82°
53°
24
80°
54°
25
81°
55°
26
82°
55°
27
Hist. Avg.
79°
54°
28
Hist. Avg.
79°
54°
29
Hist. Avg.
79°
54°
30
Hist. Avg.
79°
53°
1
Hist. Avg.
79°
53°
2
Hist. Avg.
78°
53°
3
Hist. Avg.
78°
53°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Novato
Novato's September 2026 forecast shows daily high temperatures ranging from 78° to 85°, with overnight lows between 49° and 57°. The average high for September is 81° with an average low of 54°. 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.
