S
M
T
W
T
F
S
30
82°
54°
31
81°
56°
1
84°
55°
2
87°
56°
3
83°
52°
4
81°
53°
5
88°
55°
6
88°
57°
7
88°
58°
8
Hist. Avg.
82°
59°
9
Hist. Avg.
82°
59°
10
Hist. Avg.
82°
59°
11
Hist. Avg.
82°
59°
12
Hist. Avg.
82°
59°
13
Hist. Avg.
82°
58°
14
Hist. Avg.
82°
58°
15
Hist. Avg.
82°
58°
16
Hist. Avg.
82°
58°
17
Hist. Avg.
82°
58°
18
Hist. Avg.
81°
58°
19
Hist. Avg.
81°
58°
20
Hist. Avg.
81°
58°
21
Hist. Avg.
81°
58°
22
Hist. Avg.
81°
58°
23
Hist. Avg.
80°
58°
24
Hist. Avg.
80°
57°
25
Hist. Avg.
80°
57°
26
Hist. Avg.
80°
57°
27
Hist. Avg.
80°
57°
28
Hist. Avg.
80°
57°
29
Hist. Avg.
79°
57°
30
Hist. Avg.
79°
57°
1
Hist. Avg.
79°
56°
2
Hist. Avg.
79°
56°
3
Hist. Avg.
78°
56°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Campbell
Campbell's September 2026 forecast shows daily high temperatures ranging from 81° to 88°, with overnight lows between 52° and 58°. The average high for September is 85° with an average low of 55°. 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 Campbell. See also: October | November | December.
