S
M
T
W
T
F
S
1
65°
48°
2
63°
53°
3
66°
54°
4
65°
55°
5
58°
45°
6
55°
41°
7
51°
39°
8
53°
38°
9
52°
37°
10
51°
38°
11
52°
30°
12
51°
42°
13
50°
43°
14
51°
42°
15
50°
37°
16
44°
33°
17
46°
38°
18
50°
40°
19
50°
37°
20
42°
38°
21
50°
40°
22
50°
39°
23
49°
39°
24
49°
38°
25
44°
38°
26
47°
35°
27
39°
34°
28
36°
31°
29
35°
27°
30
34°
25°
1
34°
26°
2
35°
31°
3
36°
32°
4
39°
32°
5
39°
35°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
November Weather in Sarnia
Sarnia's November 2026 forecast shows daily high temperatures ranging from 34° to 66°, with overnight lows between 25° and 55°. The average high for November is 48° with an average low of 38°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how November weather will actually feel in Sarnia. See also: December | January | February.