S
M
T
W
T
F
S
30
68°
53°
31
70°
55°
1
74°
56°
2
74°
54°
3
76°
53°
4
75°
54°
5
74°
52°
6
69°
52°
7
74°
55°
8
71°
48°
9
67°
49°
10
69°
55°
11
67°
54°
12
68°
55°
13
67°
54°
14
68°
48°
15
66°
47°
16
68°
49°
17
Hist. Avg.
67°
51°
18
Hist. Avg.
67°
51°
19
Hist. Avg.
67°
51°
20
Hist. Avg.
66°
51°
21
Hist. Avg.
66°
51°
22
Hist. Avg.
66°
50°
23
Hist. Avg.
66°
50°
24
Hist. Avg.
66°
50°
25
Hist. Avg.
66°
50°
26
Hist. Avg.
66°
50°
27
Hist. Avg.
66°
50°
28
Hist. Avg.
66°
50°
29
Hist. Avg.
66°
49°
30
Hist. Avg.
65°
49°
1
Hist. Avg.
65°
49°
2
Hist. Avg.
65°
49°
3
Hist. Avg.
65°
49°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Lakeside
Lakeside's September 2026 forecast shows daily high temperatures ranging from 66° to 76°, with overnight lows between 47° and 56°. The average high for September is 70° with an average low of 52°. 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 Lakeside. See also: October | November | December.
