S
M
T
W
T
F
S
30
72°
55°
31
72°
53°
1
71°
56°
2
73°
54°
3
72°
54°
4
74°
55°
5
74°
52°
6
73°
53°
7
72°
51°
8
71°
50°
9
71°
58°
10
72°
51°
11
70°
50°
12
70°
51°
13
72°
57°
14
75°
52°
15
75°
56°
16
76°
57°
17
77°
57°
18
77°
56°
19
76°
51°
20
75°
49°
21
66°
54°
22
67°
53°
23
70°
54°
24
72°
55°
25
73°
49°
26
72°
45°
27
69°
46°
28
63°
45°
29
63°
46°
30
63°
45°
1
63°
51°
2
Hist. Avg.
67°
47°
3
Hist. Avg.
67°
46°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Farnham
Farnham's September 2026 forecast shows daily high temperatures ranging from 63° to 77°, with overnight lows between 45° and 58°. The average high for September is 71° 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 Farnham. See also: October | November | December.
