Current Conditions - Sarnia, ON
17°
Today's High: 18°

- Feels Like
- 16°
- Humidity
- 60%
- Pressure
- 1012.87 hPa
- Sunrise
- 05:51
- Wind
- 23km/h N
- UV
- Very High
- Visibility
- 16.09km
- Sunset
- 9:05

Hourly Weather
2 PM
17°

3 PM
17°

4 PM
18°

5 PM
18°

6 PM
18°

7 PM
17°

8 PM
17°

9 PM
15°

10 PM
14°

11 PM
13°

12 AM
12°

1 AM
11°

2 AM
11°

3 AM
11°

4 AM
10°

5 AM
10°

6 AM
10°

7 AM
11°

8 AM
14°

9 AM
16°

10 AM
16°

11 AM
17°

12 PM
17°

1 PM
18°

2 PM
18°

3 PM
18°

4 PM
18°

5 PM
18°

6 PM
18°

7 PM
17°

8 PM
17°

9 PM
15°

10 PM
14°

11 PM
13°

12 AM
12°

1 AM
12°

2 AM
11°

3 AM
11°

4 AM
11°

5 AM
11°

6 AM
11°

7 AM
12°

8 AM
14°

9 AM
16°

10 AM
17°

11 AM
18°

12 PM
18°

1 PM
18°

Daily weather forecast
Tuesday
18°
9°
Sunny. Highs 17 to 19C and lows 8 to 10C.

Wednesday
19°
10°
Abundant sunshine. Highs 18 to 20C and lows 9 to 11C.

Thursday
20°
10°
Mix of sun and clouds. Highs 19 to 21C and lows 9 to 11C.

Friday
23°
10°
Mostly sunny. Highs 22 to 24C and lows 9 to 11C.

Saturday
25°
13°
Considerable cloudiness. Highs 24 to 26C and lows 12 to 14C.

Sunday
22°
12°
Afternoon showers. Highs 21 to 23C and lows 11 to 13C.

Monday
20°
11°
Showers possible. Highs 19 to 21C and lows 10 to 12C.

Tuesday
23°
12°
Times of sun and clouds. Highs 22 to 24C and lows 11 to 13C.

Wednesday
25°
13°
Times of sun and clouds. Highs 24 to 26C and lows 12 to 14C.

Thursday
25°
14°
Partly cloudy. Highs 24 to 26C and lows 13 to 15C.

Radar
Latest Weather News - Toronto
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Arctic will likely see summer free of ice by 2030, research saysThat would mean that by the end of the melt season in September, the Arctic would have less than one million square kilometres of sea ice, even under low emissions.Canada1 min
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Air quality statements in effect for large part of Ontario as forest fires rage in QuebecSpecial air quality statements are in effect for a large part of Ontario on Tuesday as forest fires rage in Quebec.Weather6 hours
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Summer 2023 weather: What to expect across CanadaGlobal News meteorologist Anthony Farnell takes a look at what's expected weather-wise across Canada this summer.WeatherJun 5
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‘Stay in a cool place’: Heat warning issued for TorontoThe weather agency said maximum tempertatures could reach 29 to 31 degrees.WeatherMay 31
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‘High levels of air pollution’ possible in GTA Wednesday"High levels of air pollution" are possible in the Greater Toronto Area on Wednesday, Environment Canada says, prompting a special air quality statement.WeatherMay 31
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Heat warnings issued in northwestern OntarioEnvironment Canada issued a series of heat warnings for areas of Ontario on the Manitoba border down to the tip of the United States.WeatherMay 28
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Longest stretch of summer-like weather so far this year for southern Ontario on the wayThe longest stretch of summer-like weather so far this year for southern Ontario is on the way. Here's a look at what's expected and when it will begin.WeatherMay 25
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Long weekend weather: What to expect in southern OntarioThe Victoria Day long weekend is often seen as the unofficial start to summer, but will it feel like it weather-wise?WeatherMay 18
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Wednesday night frost advisory issued for large swath of OntarioFor the second straight night, gardeners and growers in southern Ontario are going to need to keep a close eye on the overnight temperatures due to a risk of frost.WeatherMay 17
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‘Cover up plants’: Frost warning issued for large section of Ontario by Environment CanadaEnvironment Canada has issued a frost warning for a portion of Ontario, stretching from Waterloo Region to Cornwall, and as far north as Sault Ste. Marie and North Bay.CanadaMay 16
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Alberta wildfire smoke spreads to Ontario, eastern CanadaGlobal News meteorologist Anthony Farnell said in parts of southern Ontario, the smoke is thick enough "to almost completely block out the sun."WeatherMay 9
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Parts of Ontario brace for fresh rainfall, potential floodingParts of Ontario have already seen days of rain, but Environment Canada warned that further downpours are likely on the way for Sunday afternoon into Monday.WeatherApr 30
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Toronto under frost advisory as temperatures expected to fall around freezing markEnvironment Canada says Toronto is under a frost advisory for Wednesday night into Thursday morning as temperatures are expected to drop to around the freezing mark.WeatherApr 26
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Some parts of southern Ontario could see a month’s worth of rain over just a few days"Chilly and unsettled" conditions are expected for southern Ontario though next week. But there is some hope for a possible return of summer-like weather relatively soon.WeatherApr 25
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InteractiveHow a new ‘nature economy’ is transforming the fight for B.C.’s ancient forestsSome communities in Canada are embracing a 'nature economy.' It's the idea of protecting nature as a way of generating economic development.EnvironmentApr 20
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‘Deteriorating air quality’ expected in parts of southern Ontario on FridayThe weather agency issued a special air quality statement Friday morning for areas stretching from Kingston down to Windsor.WeatherApr 14
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‘Major pattern change’ to bring much warmer temperatures to southern OntarioA "major pattern change" will bring much warmer temperatures to southern Ontario in the coming days. Global News meteorologist Anthony Farnell details what's expected.WeatherApr 7
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Deadly ice storm leaves 3 dead, hundreds of thousands still without powerHydro-Québec says electricity has been restored for one-third of affected customers while in Ontario, power outages are expected to be a 'multi-day' situation.CanadaApr 7
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Ontario derecho, tornado recovery funding not enough, municipalities sayFunding meant to help Ontario communities recover from extreme wind damage won't be enough to make property and business owners whole or eliminate risks to vital infrastructure.WeatherApr 7
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Man dies from fallen branch as ice storm wreaks havoc on Quebec, OntarioPrime Minister Justin Trudeau, who was in Montreal alongside Mayor Valérie Plante, said it is important for people to stay safe and 'pull together.'WeatherApr 6
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Rainfall warning issued for Toronto as storm continuesThe weather agency issued the warning at 3:30 p.m. on Wednesday, saying rainfall amounts between 30 and 50 millimetres is possible.WeatherApr 5
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Thousands without power as heavy storms hit Ontario and QuebecThousands of people in Ontario are without power after a messy mix of freezing rain and thunderstorms pummeled parts of the province.WeatherApr 5
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Freezing rain in forecast for southern Ontario on FridayA special weather statement has been issued for most of southern Ontario on Friday, with freezing rain possible throughout the morning.WeatherMar 31
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Arctic cold front to sweep across southern Ontario, bringing big temperature drop"It’s a situation where you could look out your window one minute and everything looks normal and then the next it’s a full-on snow globe outside."WeatherMar 29