Sarnia (Canada) weather
Find a forecast
Forecast days
-
Maximum daytime temperature: 21° Celsius; Minimum nighttime temperature: 10° Celsius;
Maximum daytime temperature: 21 degrees Celsius; Minimum nighttime temperature: 10 degrees Celsius; -
Maximum daytime temperature: 15° Celsius; Minimum nighttime temperature: 7° Celsius;
Maximum daytime temperature: 15 degrees Celsius; Minimum nighttime temperature: 7 degrees Celsius; -
Maximum daytime temperature: 17° Celsius; Minimum nighttime temperature: 13° Celsius;
Maximum daytime temperature: 17 degrees Celsius; Minimum nighttime temperature: 13 degrees Celsius;
-
Maximum daytime temperature: 22° Celsius; Minimum nighttime temperature: 11° Celsius;
Maximum daytime temperature: 22 degrees Celsius; Minimum nighttime temperature: 11 degrees Celsius;
-
Maximum daytime temperature: 18° Celsius; Minimum nighttime temperature: 10° Celsius;
Maximum daytime temperature: 18 degrees Celsius; Minimum nighttime temperature: 10 degrees Celsius;
-
Maximum daytime temperature: 18° Celsius; Minimum nighttime temperature: 9° Celsius;
Maximum daytime temperature: 18 degrees Celsius; Minimum nighttime temperature: 9 degrees Celsius;
-
Maximum daytime temperature: 17° Celsius; Minimum nighttime temperature: 12° Celsius;
Maximum daytime temperature: 17 degrees Celsius; Minimum nighttime temperature: 12 degrees Celsius;
Sunny intervals.
Sunrise:
Sunset:
M UV
No pollution data.
No pollen data.
7 day forecast for Sarnia
Today (4 October 2026)
| Time |
16:00
|
17:00
|
18:00
|
19:00
|
20:00
|
21:00
|
22:00
|
23:00
|
|---|---|---|---|---|---|---|---|---|
| Weather symbols |  |
 |
|
 |
|
|
|
|
| Chance of precipitation |
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
| Temperature |
21°
|
20°
|
19°
|
18°
|
17°
|
16°
|
15°
|
14°
|
| Feels like temperature (°C) |
18°
|
18°
|
17°
|
17°
|
16°
|
14°
|
13°
|
12°
|
| Wind direction and speed |
W
12
|
W
11
|
WNW
10
|
WNW
8
|
NW
8
|
NW
10
|
NW
10
|
NW
12
|
| Wind gust (mph) |
21
|
19
|
16
|
14
|
15
|
17
|
19
|
19
|
| Visibility |
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
| Humidity |
52%
|
55%
|
57%
|
63%
|
66%
|
67%
|
68%
|
69%
|
| UV | 2 | 1 | 1 | 1 | - | - | - | - |
Monday (5 October 2026)
| Time |
00:00
|
01:00
|
02:00
|
03:00
|
04:00
|
05:00
|
06:00
|
07:00
|
08:00
|
09:00
|
10:00
|
11:00
|
12:00
|
13:00
|
14:00
|
15:00
|
16:00
|
17:00
|
18:00
|
19:00
|
20:00
|
21:00
|
22:00
|
23:00
|
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Weather symbols | |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
 |
|
|
|
|
| Chance of precipitation |
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
| Temperature (°C) |
13°
|
12°
|
12°
|
11°
|
11°
|
11°
|
10°
|
10°
|
10°
|
11°
|
12°
|
13°
|
14°
|
15°
|
15°
|
15°
|
15°
|
14°
|
14°
|
13°
|
13°
|
12°
|
12°
|
11°
|
| Feels like temperature (°C) |
11°
|
10°
|
10°
|
9°
|
9°
|
9°
|
8°
|
8°
|
8°
|
9°
|
10°
|
11°
|
11°
|
11°
|
11°
|
12°
|
12°
|
12°
|
11°
|
11°
|
11°
|
11°
|
11°
|
10°
|
| Wind direction and speed (mph) |
NW
11
|
NW
10
|
NW
10
|
WNW
10
|
WNW
9
|
WNW
10
|
WNW
9
|
WNW
9
|
WNW
9
|
WNW
10
|
WNW
11
|
NW
14
|
NW
15
|
NNW
15
|
NNW
15
|
NNW
15
|
NNW
14
|
NNW
13
|
NNW
11
|
NNW
9
|
NNW
8
|
NNW
7
|
NNW
7
|
NNW
6
|
| Wind gust (mph) |
19
|
17
|
16
|
16
|
16
|
15
|
15
|
15
|
17
|
20
|
24
|
26
|
27
|
26
|
26
|
25
|
24
|
21
|
18
|
14
|
11
|
10
|
10
|
10
|
| Visibility (description) |
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
| Humidity |
71%
|
74%
|
75%
|
75%
|
78%
|
82%
|
83%
|
83%
|
80%
|
72%
|
64%
|
55%
|
46%
|
41%
|
41%
|
40%
|
41%
|
41%
|
41%
|
43%
|
49%
|
54%
|
57%
|
61%
|
| UV | - | - | - | - | - | - | - | 1 | 1 | 1 | 3 | 4 | 5 | 4 | 4 | 3 | 2 | 1 | 1 | 1 | - | - | - | - |
Tuesday (6 October 2026)
| Time |
00:00
|
01:00
|
02:00
|
03:00
|
04:00
|
05:00
|
06:00
|
07:00
|
08:00
|
09:00
|
10:00
|
11:00
|
12:00
|
13:00
|
14:00
|
15:00
|
16:00
|
17:00
|
18:00
|
19:00
|
20:00
|
21:00
|
22:00
|
23:00
|
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Weather symbols | |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Chance of precipitation |
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
| Temperature (°C) |
11°
|
10°
|
10°
|
10°
|
9°
|
9°
|
8°
|
8°
|
8°
|
10°
|
11°
|
12°
|
14°
|
15°
|
16°
|
16°
|
17°
|
17°
|
16°
|
15°
|
14°
|
14°
|
14°
|
14°
|
| Feels like temperature (°C) |
10°
|
9°
|
8°
|
8°
|
8°
|
7°
|
7°
|
6°
|
6°
|
9°
|
11°
|
12°
|
13°
|
13°
|
14°
|
14°
|
14°
|
14°
|
14°
|
13°
|
12°
|
11°
|
11°
|
12°
|
| Wind direction and speed (mph) |
NNW
6
|
NNW
6
|
NW
6
|
NW
6
|
NW
6
|
NW
6
|
NW
5
|
NW
5
|
NW
5
|
WNW
4
|
W
3
|
WSW
4
|
SW
5
|
SW
6
|
SW
7
|
SW
8
|
SW
10
|
SW
11
|
SSW
11
|
S
10
|
S
12
|
S
13
|
S
13
|
SSW
12
|
| Wind gust (mph) |
10
|
9
|
10
|
10
|
9
|
9
|
8
|
8
|
7
|
8
|
9
|
11
|
13
|
15
|
16
|
17
|
18
|
19
|
17
|
18
|
19
|
20
|
20
|
20
|
| Visibility (description) |
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
| Humidity |
65%
|
69%
|
72%
|
72%
|
74%
|
76%
|
79%
|
80%
|
83%
|
71%
|
63%
|
53%
|
44%
|
42%
|
42%
|
41%
|
41%
|
42%
|
46%
|
55%
|
59%
|
63%
|
65%
|
66%
|
| UV | - | - | - | - | - | - | - | 1 | 1 | 1 | 3 | 4 | 5 | 5 | 4 | 3 | 2 | 1 | 1 | 1 | - | - | - | - |
Wednesday (7 October 2026)
| Time |
00:00
|
01:00
|
02:00
|
03:00
|
04:00
|
05:00
|
06:00
|
07:00
|
08:00
|
09:00
|
10:00
|
11:00
|
12:00
|
13:00
|
14:00
|
15:00
|
16:00
|
17:00
|
18:00
|
19:00
|
20:00
|
21:00
|
22:00
|
23:00
|
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Weather symbols | |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Chance of precipitation |
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
10%
|
10%
|
10%
|
10%
|
10%
|
| Temperature (°C) |
14°
|
14°
|
14°
|
14°
|
14°
|
14°
|
14°
|
13°
|
13°
|
14°
|
15°
|
17°
|
18°
|
19°
|
20°
|
21°
|
22°
|
21°
|
20°
|
19°
|
18°
|
17°
|
16°
|
16°
|
| Feels like temperature (°C) |
12°
|
12°
|
12°
|
12°
|
12°
|
11°
|
11°
|
11°
|
11°
|
12°
|
13°
|
15°
|
16°
|
17°
|
18°
|
19°
|
19°
|
19°
|
18°
|
17°
|
16°
|
15°
|
15°
|
15°
|
| Wind direction and speed (mph) |
SSW
12
|
SSW
13
|
SSW
13
|
SSW
13
|
SSW
13
|
SSW
13
|
SW
12
|
SW
11
|
SW
11
|
SW
11
|
SW
11
|
SW
11
|
SW
11
|
SW
11
|
SW
12
|
W
12
|
SW
13
|
W
12
|
SW
10
|
SW
10
|
W
9
|
W
10
|
W
10
|
W
9
|
| Wind gust (mph) |
21
|
21
|
21
|
21
|
21
|
21
|
19
|
19
|
17
|
19
|
20
|
20
|
20
|
21
|
22
|
22
|
22
|
21
|
17
|
15
|
17
|
17
|
17
|
17
|
| Visibility (description) |
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
| Humidity |
67%
|
69%
|
68%
|
70%
|
71%
|
73%
|
74%
|
76%
|
77%
|
75%
|
74%
|
68%
|
65%
|
62%
|
56%
|
54%
|
50%
|
52%
|
56%
|
63%
|
66%
|
68%
|
72%
|
73%
|
| UV | - | - | - | - | - | - | - | 1 | 1 | 1 | 2 | 4 | 5 | 5 | 4 | 3 | 2 | 1 | 1 | - | - | - | - | - |
Thursday (8 October 2026)
| Time |
00:00
|
01:00
|
02:00
|
03:00
|
04:00
|
05:00
|
06:00
|
07:00
|
08:00
|
09:00
|
10:00
|
11:00
|
12:00
|
13:00
|
14:00
|
15:00
|
16:00
|
17:00
|
18:00
|
19:00
|
20:00
|
23:00
|
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Weather symbols | |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Chance of precipitation |
10%
|
10%
|
10%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
10%
|
10%
|
10%
|
10%
|
| Temperature (°C) |
15°
|
14°
|
13°
|
13°
|
12°
|
12°
|
11°
|
11°
|
11°
|
12°
|
14°
|
15°
|
16°
|
17°
|
18°
|
18°
|
18°
|
18°
|
17°
|
16°
|
15°
|
13°
|
| Feels like temperature (°C) |
14°
|
12°
|
11°
|
12°
|
11°
|
10°
|
10°
|
10°
|
10°
|
11°
|
12°
|
13°
|
14°
|
15°
|
15°
|
15°
|
15°
|
15°
|
15°
|
14°
|
13°
|
11°
|
| Wind direction and speed (mph) |
W
9
|
W
8
|
W
8
|
W
8
|
W
7
|
W
8
|
W
8
|
W
8
|
W
8
|
W
8
|
W
9
|
W
10
|
WNW
10
|
WNW
11
|
WNW
12
|
WNW
12
|
WNW
12
|
WNW
11
|
WNW
9
|
WNW
8
|
WNW
7
|
WNW
8
|
| Wind gust (mph) |
15
|
14
|
13
|
13
|
13
|
13
|
14
|
14
|
14
|
17
|
17
|
20
|
22
|
23
|
23
|
23
|
21
|
19
|
15
|
14
|
15
|
14
|
| Visibility (description) |
VG
|
G
|
G
|
G
|
G
|
G
|
G
|
G
|
G
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
| Humidity |
74%
|
78%
|
80%
|
79%
|
81%
|
86%
|
85%
|
86%
|
86%
|
81%
|
74%
|
65%
|
56%
|
48%
|
42%
|
42%
|
42%
|
42%
|
45%
|
53%
|
57%
|
66%
|
| UV | - | - | - | - | - | - | - | 1 | 1 | 1 | 2 | 4 | 5 | 5 | 4 | 3 | 2 | 1 | 1 | - | - | - |
Friday (9 October 2026)
| Time |
02:00
|
05:00
|
08:00
|
11:00
|
14:00
|
17:00
|
20:00
|
23:00
|
|---|---|---|---|---|---|---|---|---|
| Weather symbols | |
|
|
|
|
|
|
|
| Chance of precipitation |
<5%
|
10%
|
10%
|
10%
|
10%
|
10%
|
<5%
|
<5%
|
| Temperature (°C) |
11°
|
10°
|
10°
|
14°
|
17°
|
17°
|
14°
|
12°
|
| Feels like temperature (°C) |
10°
|
9°
|
9°
|
12°
|
14°
|
14°
|
12°
|
10°
|
| Wind direction and speed (mph) |
W
7
|
W
7
|
WSW
7
|
WSW
9
|
W
12
|
WNW
11
|
WNW
8
|
WNW
8
|
| Wind gust (mph) |
12
|
13
|
17
|
22
|
23
|
19
|
15
|
14
|
| Visibility (description) |
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
| Humidity |
74%
|
79%
|
82%
|
66%
|
47%
|
46%
|
65%
|
73%
|
| UV | - | - | 1 | 3 | 4 | 1 | - | - |
Saturday (10 October 2026)
| Time |
02:00
|
05:00
|
08:00
|
11:00
|
14:00
|
17:00
|
20:00
|
23:00
|
|---|---|---|---|---|---|---|---|---|
| Weather symbols | |
|
|
|
|
|
|
|
| Chance of precipitation |
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
| Temperature (°C) |
10°
|
9°
|
9°
|
13°
|
16°
|
16°
|
13°
|
12°
|
| Feels like temperature (°C) |
9°
|
8°
|
7°
|
12°
|
14°
|
14°
|
12°
|
10°
|
| Wind direction and speed (mph) |
NW
8
|
NW
8
|
NW
7
|
NNE
8
|
NE
7
|
ESE
7
|
SE
9
|
SSE
10
|
| Wind gust (mph) |
14
|
13
|
14
|
15
|
14
|
14
|
14
|
15
|
| Visibility (description) |
VG
|
G
|
G
|
VG
|
VG
|
VG
|
VG
|
VG
|
| Humidity |
80%
|
86%
|
85%
|
63%
|
51%
|
51%
|
67%
|
75%
|
| UV | - | - | 1 | 3 | 4 | 1 | - | - |
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Forecast
Forecast for 5pm (UTC-4) Sunday
Updated 19:21 (UTC+1) on Sun 4 Oct 2026
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