14-day forecast · Sarnia
30-day outlook →TonightSep 1819°11°Mostly cloudyMainly cloudy9%
Day
- Wind
- N 15 km/h
- Wind gusts
- 43 km/h
- Precipitation
- 9% · 0 mm
- UV index (max)
- 6 High
- Air quality (AQHI)
- 2 · Low risk
Night
Partly cloudy. Becoming cloudy near midnight. Low 11.
- Low
- 11°
- Wind
- N 15 km/h
Sunrise7:12 AM
Sunset7:34 PM
Daylight12 h 22 min
Normal21° / 10°
SatSep 1920°12°ShowersShowers74%
Day
Cloudy. Showers beginning near noon. High 20. UV index 4 or moderate.
- Wind
- SE 15 km/h
- Precipitation
- 74% · 5 mm
- UV index (max)
- 4 Moderate
- Air quality (AQHI)
- 2 · Low risk
Night
Showers. Low 12.
- Low
- 12°
- Wind
- E 15 km/h
Sunrise7:13 AM
Sunset7:32 PM
Daylight12 h 18 min
SunSep 2020°11°Chance of showersChance of showers70%
Day
Cloudy with 70 percent chance of showers. High 20.
- Precipitation
- 70% · 13 mm
- UV index (max)
- 2 Low
Night
Cloudy with 30 percent chance of showers. Low 11.
- Low
- 11°
- Precipitation
- 30%
Sunrise7:15 AM
Sunset7:30 PM
Daylight12 h 15 min
MonSep 2118°11°Chance of showersChance of showers30%
Day
Cloudy with 30 percent chance of showers. High 18.
- Precipitation
- 30% · 0 mm
- UV index (max)
- 3 Moderate
Night
Cloudy with 30 percent chance of showers. Low 11.
- Low
- 11°
- Precipitation
- 30%
Sunrise7:16 AM
Sunset7:29 PM
Daylight12 h 12 min
TueSep 2217°11°Chance of showersChance of showers60%
Day
Cloudy with 30 percent chance of showers. High 17.
- Precipitation
- 30% · 0 mm
- UV index (max)
- 6 High
Night
Cloudy with 60 percent chance of showers. Low 11.
- Low
- 11°
- Precipitation
- 60%
Sunrise7:17 AM
Sunset7:27 PM
Daylight12 h 10 min
WedSep 2317°11°Chance of showersCloudy40%
Day
Cloudy with 40 percent chance of showers. High 17.
- Precipitation
- 40% · 7 mm
- UV index (max)
- 3 Moderate
Night
Cloudy. Low 11.
- Low
- 11°
Sunrise7:18 AM
Sunset7:25 PM
Daylight12 h 7 min
ThuSep 2419°12°A mix of sun and cloud79%
Day
A mix of sun and cloud. High 19.
- Precipitation
- 79% · 4 mm
- UV index (max)
- 4 Moderate
Night
Low 12.
- Low
- 12°
Sunrise7:19 AM
Sunset7:23 PM
Daylight12 h 4 min
Days 8–14 · trend, lower confidence
FriSep 2517°13°SunnyNight low 13°4%
Day
Sunny. High 17.
- Wind
- N 22 km/h
- Wind gusts
- 37 km/h
- Precipitation
- 4% · 0 mm
- UV index (max)
- 5 Moderate
Night
Low 13.
- Low
- 13°
Sunrise7:20 AM
Sunset7:21 PM
Daylight12 h 1 min
SourceExtended outlook
SatSep 2621°12°SunnyNight low 12°3%
Day
Sunny. High 21.
- Wind
- E 19 km/h
- Wind gusts
- 38 km/h
- Precipitation
- 3% · 0 mm
- UV index (max)
- 6 High
Night
Low 12.
- Low
- 12°
Sunrise7:21 AM
Sunset7:20 PM
Daylight11 h 58 min
SourceExtended outlook
SunSep 2721°14°SunnyNight low 14°4%
Day
Sunny. High 21.
- Wind
- SE 21 km/h
- Wind gusts
- 38 km/h
- Precipitation
- 4% · 0 mm
- UV index (max)
- 6 High
Night
Low 14.
- Low
- 14°
Sunrise7:22 AM
Sunset7:18 PM
Daylight11 h 55 min
SourceExtended outlook
MonSep 2821°13°SunnyNight low 13°8%
Day
Sunny. High 21.
- Wind
- SE 21 km/h
- Wind gusts
- 35 km/h
- Precipitation
- 8% · 0 mm
- UV index (max)
- 6 High
Night
Low 13.
- Low
- 13°
Sunrise7:23 AM
Sunset7:16 PM
Daylight11 h 52 min
SourceExtended outlook
TueSep 2918°15°Mostly cloudyNight low 15°85%
Day
Mostly cloudy. High 18.
- Wind
- SE 23 km/h
- Wind gusts
- 37 km/h
- Precipitation
- 85% · 4 mm
- UV index (max)
- 4 Moderate
Night
Low 15.
- Low
- 15°
Sunrise7:24 AM
Sunset7:14 PM
Daylight11 h 49 min
SourceExtended outlook
WedSep 3018°15°ShowersNight low 15°91%
Day
Showers. High 18.
- Wind
- SE 22 km/h
- Wind gusts
- 36 km/h
- Precipitation
- 91% · 14 mm
- UV index (max)
- 4 Moderate
Night
Low 15.
- Low
- 15°
Sunrise7:26 AM
Sunset7:12 PM
Daylight11 h 46 min
SourceExtended outlook
ThuOct 117°11°Partly cloudyNight low 11°13%
Day
Partly cloudy. High 17.
- Wind
- NW 32 km/h
- Wind gusts
- 42 km/h
- Precipitation
- 13% · 0 mm
- UV index (max)
- 5 Moderate
Night
Low 11.
- Low
- 11°
Sunrise7:27 AM
Sunset7:11 PM
Daylight11 h 43 min
SourceExtended outlook
14 days at a glance
Today →| Day | Weather | High | Low | Precip | Wind | UV |
|---|---|---|---|---|---|---|
| Today Sep 18 | Mostly cloudy | 19° | 11° | 9% · 0 mm | N 15 km/h | 6 |
| Sat Sep 19 | Showers | 20° | 12° | 74% · 5 mm | SE 15 km/h | 4 |
| Sun Sep 20 | Showers | 20° | 11° | 70% · 13 mm | NE 31 km/h | 2 |
| Mon Sep 21 | Partly cloudy | 18° | 11° | 30% · 0 mm | NE 31 km/h | 3 |
| Tue Sep 22 | Partly cloudy | 17° | 11° | 60% · 0 mm | E 32 km/h | 6 |
| Wed Sep 23 | Showers | 17° | 11° | 40% · 7 mm | E 32 km/h | 3 |
| Thu Sep 24 | Partly cloudy | 19° | 12° | 79% · 4 mm | E 25 km/h | 4 |
| Fri Sep 25 | Sunny | 17° | 13° | 4% · 0 mm | N 22 km/h | 5 |
| Sat Sep 26 | Sunny | 21° | 12° | 3% · 0 mm | E 19 km/h | 6 |
| Sun Sep 27 | Sunny | 21° | 14° | 4% · 0 mm | SE 21 km/h | 6 |
| Mon Sep 28 | Sunny | 21° | 13° | 8% · 0 mm | SE 21 km/h | 6 |
| Tue Sep 29 | Mostly cloudy | 18° | 15° | 85% · 4 mm | SE 23 km/h | 4 |
| Wed Sep 30 | Showers | 18° | 15° | 91% · 14 mm | SE 22 km/h | 4 |
| Thu Oct 1 | Partly cloudy | 17° | 11° | 13% · 0 mm | NW 32 km/h | 5 |
Weather map — Sarnia
Sarnia →Forecast: Environment and Climate Change Canada (Sarnia - Petrolia - Western Lambton County), issued 3:31 PM · Days 8–14: WeatherAPI.com · weather.gc.ca · 42.9787°N, 82.4041°W · Elevation 185 m · Population 72,125 · Time zone America/Toronto