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Sarnia, Ontario

54°F
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Sarnia

Ontario

54°
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Sarnia, Ontario Weather
Today WinterCast Local {stormName} Tracker Hourly 10-Day Radar MinuteCast® Monthly Air Quality Health & Activities

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Today Hourly 10-Day Radar MinuteCast®

Monthly

Air Quality Health & Activities

November

January February March April May June July August September October November December

2026

2025 2026 2027

10-Day

S
M
T
W
T
F
S
1
Mostly cloudy
65°
48°
2
Cloudy
63°
53°
3
Breezy in the morning
69°
54°
4
Warm with rain at times
67°
55°
5
Occasional rain
60°
47°
6
Rain
55°
44°
7
Continued cloudy
51°
42°
8
Clouds yielding to sun
50°
40°
9
Cloudy
52°
40°
10
Periods of rain
51°
41°
11
A morning shower; cloudy
53°
41°
12
A blend of sun and clouds
55°
36°
13
Mostly cloudy
50°
43°
14
Cloudy
51°
42°
15
Intervals of bright sunshine
50°
37°
16
Shifting clouds and sun
44°
33°
17
Considerable cloudiness
46°
38°
18
Cloudy with showers
50°
40°
19
Times of clouds and sun
50°
37°
20
Plenty of sunshine
42°
38°
21
Cloudy
50°
40°
22
Mostly cloudy
50°
39°
23
Mostly cloudy
49°
39°
24
Rather cloudy
49°
38°
25
Occasional rain
44°
38°
26
Cloudy with a little rain
47°
35°
27
Rain; mixed with snow early
39°
34°
28
Remaining cloudy
36°
31°
29
Sun, then clouds
35°
27°
30
A little snow in the morning
34°
25°
1
Mostly cloudy
34°
26°
2
Cloudy
35°
31°
3
Decreasing clouds
36°
32°
4
Cloudy
39°
32°
5
Cloudy
39°
35°

Temperature Graph

°F
70° 60° 50° 40° 30° Nov
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30
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.

Further Ahead

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January 2027

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Weather Near Sarnia:

  • Detroit, MI
  • London, Ontario
  • Windsor, Ontario
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