S
M
T
W
T
F
S
1
65°
48°
2
63°
53°
3
69°
54°
4
67°
55°
5
60°
47°
6
55°
44°
7
51°
42°
8
50°
40°
9
52°
40°
10
51°
41°
11
53°
41°
12
55°
36°
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 69°, with overnight lows between 25° and 55°. The average high for November is 48° with an average low of 39°. 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.