S
M
T
W
T
F
S
30
72°
52°
31
76°
56°
1
77°
55°
2
77°
56°
3
76°
50°
4
71°
46°
5
69°
49°
6
70°
54°
7
75°
54°
8
75°
53°
9
73°
52°
10
69°
53°
11
75°
52°
12
74°
53°
13
75°
53°
14
74°
52°
15
74°
53°
16
73°
52°
17
72°
51°
18
73°
45°
19
66°
44°
20
67°
42°
21
64°
41°
22
64°
45°
23
68°
46°
24
67°
42°
25
64°
42°
26
64°
44°
27
63°
45°
28
69°
47°
29
68°
48°
30
70°
46°
1
67°
47°
2
68°
46°
3
62°
46°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Davis
Davis's September 2026 forecast shows daily high temperatures ranging from 62° to 77°, with overnight lows between 41° and 56°. The average high for September is 70° with an average low of 49°. 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 Davis. See also: October | November | December.