Sarnia (Canada) weather
Find a forecast
Forecast days
-
Maximum daytime temperature: 14° Celsius; Minimum nighttime temperature: 9° Celsius;
Maximum daytime temperature: 14° Celsius; Minimum nighttime temperature: 9° Celsius; -
Maximum daytime temperature: 17° Celsius; Minimum nighttime temperature: 14° Celsius;
Maximum daytime temperature: 17° Celsius; Minimum nighttime temperature: 14° Celsius; -
Maximum daytime temperature: 21° Celsius; Minimum nighttime temperature: 14° Celsius;
Maximum daytime temperature: 21° Celsius; Minimum nighttime temperature: 14° Celsius;
-
Maximum daytime temperature: 15° Celsius; Minimum nighttime temperature: 10° Celsius;
Maximum daytime temperature: 15° Celsius; Minimum nighttime temperature: 10° Celsius; -
Maximum daytime temperature: 16° Celsius; Minimum nighttime temperature: 13° Celsius;
Maximum daytime temperature: 16° Celsius; Minimum nighttime temperature: 13° Celsius;
-
Maximum daytime temperature: 16° Celsius; Minimum nighttime temperature: 9° Celsius;
Maximum daytime temperature: 16° Celsius; Minimum nighttime temperature: 9° Celsius;
-
Maximum daytime temperature: 12° Celsius; Minimum nighttime temperature: 8° Celsius;
Maximum daytime temperature: 12° Celsius; Minimum nighttime temperature: 8° Celsius;
Clear.
Sunrise:
Sunset:
M UV
No pollution data.
No pollen data.
7 day forecast for Sarnia
Today (16 October 2025)
| Time |
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%
|
| Temperature |
12°
|
12°
|
12°
|
12°
|
13°
|
13°
|
14°
|
14°
|
14°
|
14°
|
14°
|
14°
|
14°
|
13°
|
13°
|
13°
|
13°
|
12°
|
12°
|
| Feels like temperature (°C) |
10°
|
11°
|
11°
|
11°
|
12°
|
12°
|
12°
|
12°
|
12°
|
12°
|
12°
|
12°
|
12°
|
12°
|
11°
|
11°
|
11°
|
11°
|
11°
|
| Wind direction and speed |
NNE
10
|
NNE
9
|
NNE
7
|
NNE
5
|
NNE
5
|
NNE
5
|
NNE
6
|
N
8
|
N
9
|
N
10
|
N
10
|
N
10
|
N
10
|
N
9
|
NNE
8
|
NNE
8
|
NNE
7
|
NE
7
|
ENE
6
|
| Wind gust (mph) |
16
|
14
|
12
|
10
|
11
|
13
|
16
|
18
|
20
|
20
|
20
|
19
|
18
|
16
|
14
|
12
|
11
|
11
|
10
|
| Visibility |
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
| Humidity |
67%
|
67%
|
67%
|
68%
|
64%
|
58%
|
57%
|
56%
|
56%
|
56%
|
56%
|
57%
|
59%
|
64%
|
65%
|
66%
|
68%
|
71%
|
75%
|
| UV | - | - | 1 | 1 | 1 | 2 | 3 | 4 | 4 | 4 | 3 | 2 | 1 | 1 | - | - | - | - | - |
Friday (17 October 2025)
| 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%
|
10%
|
10%
|
10%
|
10%
|
20%
|
20%
|
10%
|
<5%
|
<5%
|
10%
|
10%
|
20%
|
10%
|
20%
|
30%
|
20%
|
20%
|
20%
|
| Temperature (°C) |
11°
|
11°
|
10°
|
10°
|
10°
|
9°
|
9°
|
9°
|
9°
|
9°
|
10°
|
11°
|
12°
|
13°
|
15°
|
16°
|
17°
|
17°
|
17°
|
16°
|
15°
|
15°
|
14°
|
15°
|
| Feels like temperature (°C) |
10°
|
10°
|
9°
|
9°
|
8°
|
8°
|
7°
|
7°
|
7°
|
8°
|
9°
|
10°
|
10°
|
11°
|
13°
|
14°
|
15°
|
15°
|
14°
|
14°
|
13°
|
12°
|
12°
|
12°
|
| Wind direction and speed (mph) |
E
6
|
ESE
5
|
ESE
5
|
SE
5
|
SE
5
|
SE
6
|
SE
6
|
SE
6
|
SSE
6
|
SSE
6
|
SSE
6
|
SSE
6
|
S
7
|
SSE
9
|
S
10
|
S
11
|
S
12
|
S
12
|
S
11
|
S
11
|
S
12
|
SSE
12
|
SSE
13
|
S
13
|
| Wind gust (mph) |
10
|
10
|
9
|
9
|
10
|
10
|
11
|
11
|
12
|
12
|
12
|
12
|
15
|
17
|
19
|
20
|
20
|
20
|
18
|
19
|
20
|
21
|
22
|
22
|
| 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 |
77%
|
82%
|
83%
|
84%
|
83%
|
83%
|
82%
|
81%
|
79%
|
78%
|
75%
|
72%
|
69%
|
66%
|
63%
|
58%
|
53%
|
52%
|
53%
|
56%
|
60%
|
69%
|
71%
|
71%
|
| UV | - | - | - | - | - | - | - | 1 | 1 | 1 | 1 | 2 | 2 | 3 | 3 | 2 | 1 | 1 | 1 | - | - | - | - | - |
Saturday (18 October 2025)
| 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 |
30%
|
30%
|
30%
|
20%
|
10%
|
20%
|
<5%
|
<5%
|
<5%
|
10%
|
10%
|
<5%
|
<5%
|
10%
|
20%
|
20%
|
10%
|
10%
|
30%
|
50%
|
30%
|
40%
|
40%
|
40%
|
| Temperature (°C) |
15°
|
15°
|
16°
|
16°
|
15°
|
15°
|
15°
|
15°
|
15°
|
15°
|
16°
|
18°
|
19°
|
20°
|
21°
|
21°
|
21°
|
21°
|
20°
|
19°
|
19°
|
18°
|
18°
|
18°
|
| Feels like temperature (°C) |
13°
|
13°
|
13°
|
13°
|
13°
|
13°
|
12°
|
12°
|
12°
|
13°
|
14°
|
14°
|
15°
|
16°
|
17°
|
17°
|
18°
|
18°
|
18°
|
17°
|
17°
|
16°
|
16°
|
16°
|
| Wind direction and speed (mph) |
S
13
|
S
14
|
S
14
|
S
14
|
S
14
|
S
14
|
S
14
|
S
15
|
S
15
|
S
14
|
S
15
|
SSW
16
|
SSW
17
|
SSW
17
|
SSW
16
|
SSW
16
|
SSW
15
|
SSW
13
|
SSW
11
|
SSW
12
|
SSW
11
|
SSW
13
|
SSW
12
|
SSW
12
|
| Wind gust (mph) |
22
|
22
|
23
|
24
|
24
|
24
|
24
|
24
|
24
|
26
|
28
|
29
|
30
|
29
|
28
|
27
|
26
|
22
|
19
|
20
|
21
|
22
|
23
|
20
|
| Visibility (description) |
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
G
|
G
|
G
|
G
|
G
|
| Humidity |
72%
|
71%
|
69%
|
71%
|
72%
|
73%
|
74%
|
75%
|
75%
|
75%
|
71%
|
65%
|
59%
|
57%
|
57%
|
57%
|
58%
|
59%
|
62%
|
67%
|
70%
|
83%
|
84%
|
87%
|
| UV | - | - | - | - | - | - | - | 1 | 1 | 1 | 2 | 3 | 4 | 4 | 3 | 2 | 1 | 1 | 1 | - | - | - | - | - |
Sunday (19 October 2025)
| 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 |
30%
|
40%
|
30%
|
30%
|
30%
|
30%
|
30%
|
40%
|
30%
|
40%
|
40%
|
40%
|
50%
|
70%
|
50%
|
40%
|
30%
|
30%
|
30%
|
20%
|
20%
|
10%
|
10%
|
10%
|
| Temperature (°C) |
17°
|
17°
|
16°
|
16°
|
15°
|
15°
|
15°
|
14°
|
14°
|
14°
|
14°
|
14°
|
14°
|
14°
|
14°
|
14°
|
13°
|
13°
|
13°
|
13°
|
12°
|
12°
|
12°
|
11°
|
| Feels like temperature (°C) |
16°
|
16°
|
15°
|
15°
|
15°
|
14°
|
14°
|
13°
|
13°
|
13°
|
12°
|
11°
|
11°
|
11°
|
10°
|
10°
|
10°
|
10°
|
10°
|
10°
|
10°
|
9°
|
9°
|
9°
|
| Wind direction and speed (mph) |
SSW
10
|
SW
8
|
WSW
7
|
W
7
|
W
7
|
W
7
|
W
7
|
W
7
|
W
8
|
WNW
9
|
NW
12
|
WNW
13
|
NW
17
|
NW
17
|
NW
18
|
NW
18
|
NW
19
|
NW
19
|
NW
18
|
NW
16
|
NW
15
|
WNW
14
|
WNW
14
|
WNW
14
|
| Wind gust (mph) |
17
|
13
|
13
|
13
|
13
|
13
|
13
|
15
|
16
|
21
|
25
|
30
|
31
|
32
|
34
|
35
|
35
|
34
|
31
|
28
|
27
|
25
|
25
|
25
|
| Visibility (description) |
G
|
G
|
G
|
G
|
G
|
G
|
G
|
G
|
G
|
G
|
G
|
G
|
G
|
G
|
G
|
G
|
G
|
G
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
| Humidity |
90%
|
93%
|
92%
|
93%
|
93%
|
93%
|
93%
|
93%
|
93%
|
91%
|
90%
|
88%
|
86%
|
84%
|
82%
|
79%
|
73%
|
72%
|
71%
|
71%
|
67%
|
66%
|
66%
|
65%
|
| UV | - | - | - | - | - | - | - | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | - | - | - | - | - |
Monday (20 October 2025)
| 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%
|
10%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
10%
|
| Temperature (°C) |
11°
|
11°
|
11°
|
10°
|
10°
|
10°
|
10°
|
10°
|
10°
|
10°
|
11°
|
12°
|
13°
|
15°
|
15°
|
16°
|
16°
|
16°
|
15°
|
14°
|
14°
|
14°
|
| Feels like temperature (°C) |
8°
|
8°
|
8°
|
8°
|
8°
|
8°
|
8°
|
8°
|
8°
|
8°
|
9°
|
10°
|
11°
|
12°
|
12°
|
13°
|
13°
|
13°
|
12°
|
12°
|
11°
|
11°
|
| Wind direction and speed (mph) |
WNW
14
|
WNW
13
|
W
12
|
W
11
|
W
11
|
W
11
|
WSW
11
|
WSW
10
|
WSW
10
|
WSW
9
|
SW
10
|
SW
10
|
SW
11
|
SW
13
|
SW
13
|
SW
14
|
SSW
13
|
SSW
14
|
SSW
13
|
S
13
|
S
13
|
S
16
|
| Wind gust (mph) |
25
|
23
|
22
|
21
|
20
|
19
|
19
|
18
|
17
|
18
|
20
|
21
|
24
|
25
|
26
|
26
|
25
|
24
|
22
|
22
|
25
|
26
|
| Visibility (description) |
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
| Humidity |
65%
|
65%
|
66%
|
66%
|
65%
|
66%
|
67%
|
67%
|
67%
|
66%
|
62%
|
58%
|
52%
|
44%
|
42%
|
42%
|
41%
|
42%
|
43%
|
52%
|
56%
|
59%
|
| UV | - | - | - | - | - | - | - | 1 | 1 | 1 | 2 | 3 | 4 | 4 | 3 | 2 | 1 | 1 | 1 | - | - | - |
Tuesday (21 October 2025)
| Time |
02:00
|
05:00
|
08:00
|
11:00
|
14:00
|
17:00
|
20:00
|
23:00
|
|---|---|---|---|---|---|---|---|---|
| Weather symbols | |
|
|
|
|
|
|
|
| Chance of precipitation |
20%
|
20%
|
30%
|
30%
|
30%
|
40%
|
20%
|
30%
|
| Temperature (°C) |
14°
|
13°
|
13°
|
13°
|
14°
|
14°
|
12°
|
11°
|
| Feels like temperature (°C) |
11°
|
11°
|
10°
|
11°
|
11°
|
11°
|
9°
|
8°
|
| Wind direction and speed (mph) |
SSW
15
|
SSW
14
|
SW
12
|
WSW
14
|
WSW
15
|
W
14
|
WNW
14
|
WNW
14
|
| Wind gust (mph) |
25
|
24
|
25
|
28
|
29
|
29
|
28
|
27
|
| Visibility (description) |
VG
|
VG
|
G
|
VG
|
VG
|
G
|
VG
|
VG
|
| Humidity |
66%
|
69%
|
76%
|
73%
|
58%
|
58%
|
71%
|
73%
|
| UV | - | - | 1 | 2 | 3 | 1 | - | - |
Wednesday (22 October 2025)
| Time |
02:00
|
05:00
|
08:00
|
11:00
|
14:00
|
17:00
|
20:00
|
23:00
|
|---|---|---|---|---|---|---|---|---|
| Weather symbols | |
|
|
|
|
|
|
|
| Chance of precipitation |
20%
|
10%
|
10%
|
10%
|
<5%
|
10%
|
10%
|
10%
|
| Temperature (°C) |
10°
|
9°
|
9°
|
10°
|
11°
|
11°
|
11°
|
10°
|
| Feels like temperature (°C) |
7°
|
6°
|
6°
|
7°
|
8°
|
9°
|
8°
|
8°
|
| Wind direction and speed (mph) |
WNW
14
|
WNW
13
|
WNW
13
|
W
15
|
WNW
15
|
WNW
13
|
W
11
|
WSW
9
|
| Wind gust (mph) |
26
|
24
|
28
|
31
|
29
|
23
|
20
|
19
|
| Visibility (description) |
VG
|
VG
|
VG
|
VG
|
G
|
VG
|
VG
|
VG
|
| Humidity |
74%
|
74%
|
74%
|
63%
|
52%
|
48%
|
56%
|
61%
|
| UV | - | - | 1 | 2 | 3 | 1 | - | - |
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Forecast for 05:00 (UTC-4), Thu
Updated 07:20 (UTC+1) on Thu 16 Oct 2025
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