Current Conditions - Sarnia, ON
2°
Today's High: 3°
Today's Low: 1°
- Feels Like
- -1°
- Humidity
- 94%
- Pressure
- 1003.39 hPa
- Sunrise
- 08:00
- Wind
- 10km/h E
- UV
- Low
- Visibility
- 2.09km
- Sunset
- 5:10
Hourly Weather
1 PM
2°
2°
2 PM
2°
2°
3 PM
2°
2°
4 PM
3°
3°
5 PM
3°
3°
6 PM
3°
3°
7 PM
2°
2°
8 PM
2°
2°
9 PM
2°
2°
10 PM
2°
2°
11 PM
2°
2°
12 AM
2°
2°
1 AM
2°
2°
2 AM
2°
2°
3 AM
2°
2°
4 AM
2°
2°
5 AM
2°
2°
6 AM
2°
2°
7 AM
2°
2°
8 AM
2°
2°
9 AM
2°
2°
10 AM
3°
3°
11 AM
3°
3°
12 PM
4°
4°
1 PM
4°
4°
2 PM
4°
4°
3 PM
4°
4°
4 PM
4°
4°
5 PM
3°
3°
6 PM
3°
3°
7 PM
2°
2°
8 PM
2°
2°
9 PM
2°
2°
10 PM
2°
2°
11 PM
1°
1°
12 AM
0°
0°
1 AM
0°
0°
2 AM
0°
0°
3 AM
0°
0°
4 AM
0°
0°
5 AM
0°
0°
6 AM
0°
0°
7 AM
0°
0°
8 AM
1°
1°
9 AM
2°
2°
10 AM
3°
3°
11 AM
4°
4°
12 PM
5°
5°
Daily weather forecast
Tuesday
3°
1°
Cloudy, periods of rain. Highs 2 to 4C and lows 0 to 2C.
3°
1°
Cloudy, periods of rain. Highs 2 to 4C and lows 0 to 2C.
Wednesday
4°
-1°
Mostly cloudy. Highs 3 to 5C and lows -2 to 0C.
4°
-1°
Mostly cloudy. Highs 3 to 5C and lows -2 to 0C.
Thursday
7°
5°
Cloudy. Highs 6 to 8C and lows 4 to 6C.
7°
5°
Cloudy. Highs 6 to 8C and lows 4 to 6C.
Friday
9°
0°
A few morning showers. Highs 8 to 10C and lows -1 to 1C.
9°
0°
A few morning showers. Highs 8 to 10C and lows -1 to 1C.
Saturday
5°
-2°
Light rain. Highs 4 to 6C and lows -3 to -1C.
5°
-2°
Light rain. Highs 4 to 6C and lows -3 to -1C.
Sunday
0°
-4°
Mostly cloudy. Highs -1 to 1C and lows -5 to -3C.
0°
-4°
Mostly cloudy. Highs -1 to 1C and lows -5 to -3C.
Monday
3°
-1°
Mix of sun and clouds. Highs 2 to 4C and lows -2 to 0C.
3°
-1°
Mix of sun and clouds. Highs 2 to 4C and lows -2 to 0C.
Tuesday
3°
-2°
Mostly cloudy. Highs 2 to 4C and lows -3 to -1C.
3°
-2°
Mostly cloudy. Highs 2 to 4C and lows -3 to -1C.
Wednesday
1°
-6°
Afternoon snow showers. Highs 0 to 2C and lows -7 to -5C.
1°
-6°
Afternoon snow showers. Highs 0 to 2C and lows -7 to -5C.
Thursday
-3°
-6°
Mostly cloudy. Highs -4 to -2C and lows -7 to -5C.
-3°
-6°
Mostly cloudy. Highs -4 to -2C and lows -7 to -5C.
Radar
Latest Weather News - Toronto
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Some school buses cancelled in GTA as region braces for freezing rainSome school buses in the Greater Toronto Area have had service cancelled as parts of Ontario are expected to get freezing rain on Tuesday.Weather2 hours
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Toronto, GTA under ‘snowfall’ warning expected to impact Monday morning commuteEnvironment Canada has placed Toronto and the surrounding GTA under a snowfall warning that is expected to impact the Monday morning commute.WeatherJan 5
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Fog, snow squalls and freezing rain: Winter weather warnings in place across CanadaEnvironment Canada issued a number of yellow weather warnings on Friday, ranging from dense fog in British Columbia to lake-effect snow in parts of Ontario.CanadaJan 2
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Thousands still without power after winter storm in Ontario, utility saysHydro One says challenging road conditions are slowing down crews in some areas, and its outage map shows some 15,000 customers remain without power as of this morning.CanadaDec 30, 2025
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Winter storms to continue hammering parts of Ontario, QuebecMuch of Canada has been blasted with a number of weather systems over the last week, ranging from blizzards and cold snaps to freezing rain.WeatherDec 30, 2025
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Freezing rain, blowing snow expected to slam much of Eastern CanadaThe nasty side of Old Man Winter continues as freezing rain, blowing snow and strong winds are expected to slam areas in Eastern Canada, from Ontario to Newfoundland and Labrador.WeatherDec 29, 2025
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Ontario, Quebec and Maritimes under numerous winter warningsSnow, freezing rain and high winds are expected in various parts of Canada, with multiple warnings and special weather statements in effect across the country.WeatherDec 28, 2025
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From freezing rain to -50: Canada braces for severe winter weatherFreezing rain is set to hit parts of Ontario and Quebec as a powerful winter system brings blizzards, blowing snow and extreme cold to much of Canada.WeatherDec 27, 2025
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Snowfall, freezing rain to hit parts of Ontario on Boxing DayParts of southern Ontario are under weather warnings Friday, with freezing rain expected in the Windsor region and parts of the Greater Toronto Area into the evening.WeatherDec 26, 2025
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Treacherous commutes expected in Alberta as winter wallop tracks across CanadaMany parts of the Prairies, along with other parts of Canada, might have to dig themselves out ahead of this coming weekend as a wintry wallop continues.WeatherDec 19, 2025
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Blizzard conditions keep RCMP busy as winter storm moves across CanadaWinter storm warnings have also been issued across north-central Ontario and into Quebec, with up to 30 centimetres of snow forecast.WeatherDec 18, 2025
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More than 150 collisions across GTHA as snowfall makes roads treacherous: OPPMore than 150 collisions have been reported across the GTHA due to reduced visibility and slick roads caused by snowfall, prompting the OPP to urge drivers to stay home.WeatherDec 10, 2025
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Snowfall warning issued across southern Ontario for WednesdayEnvironment Canada has issued a 'yellow-level' snowfall warning for a large portion of southern Ontario on Wednesday as 10 centimetres or more of snow is expected in most areas.WeatherDec 10, 2025
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Temperatures to nosedive in northern Ontario as cold front moves inParts of northeastern Ontario can expect to see a nearly 20-degree drop in temperature over the next 24 hours thanks to a blast of wintry weather.WeatherDec 3, 2025
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Snow warnings for parts of Ontario. Here’s what to expectSnowfall warnings are in place for several parts of Ontario with several centimetres of snow having already fallen in many communities.WeatherNov 30, 2025
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‘Emergencies don’t wait’: Toronto Hydro urges preparedness for winter power outagesNearly half of Toronto households still lack a full emergency kit, and Toronto Hydro is urging families to prepare with simple steps for people and pets ahead of winter outages.WeatherNov 27, 2025
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Hazardous snow squall warnings blanket southern OntarioEnvironment Canada has issued winter storm and snow squall warnings for southern Ontario. The heaviest snowfall is Thursday night and will continue until the end of the week.WeatherNov 27, 2025
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Parts of northern Ontario, central Quebec face snowy storm this weekSignificant weather system in northeastern and northwestern Ontario may blow into central Quebec north of Montreal. Heavy snowfall is projected with travel advisory.WeatherNov 26, 2025
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How Ontario school boards decide when to cancel school busesMany Ontario families will wake up this winter wondering if school busses are cancelled. But the decision to cancel them isn't as simple as you think.CanadaNov 15, 2025
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Snowfall across Toronto sets early season recordsThe winter flurries set several records in the city, which has not seen this much snow on the ground this early in the year since at least 1969.WeatherNov 10, 2025
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340 snow-related incidents reported across GTA highways as 1st snowfall of the season hitsOPP say in a 24-hour span they have responded to 340 snow-related incidents involving Greater Toronto Area drivers as the first snowfall of the season hits southern Ontario.WeatherNov 10, 2025
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Southern Ontario, parts of Quebec see 1st snowfall of the seasonSnow is falling on parts of southern Ontario and southern and central Quebec on Sunday with the potential for some regions to see up to 20 centimetres of snow.WeatherNov 9, 2025
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First snowfall of the season expected in the GTA this week: Environment CanadaThe GTA could see its first snow this weekend as colder air moves in with a weekend forecast of flurries expected to arrive Sunday.WeatherNov 5, 2025
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Ontario city to fine homeowners who block public paths with loose leavesBurlington council has approved fines for residents who leave piles of leaves blocking sidewalks, bike lanes, roads or storm drains, citing safety and flooding risks.EnvironmentOct 27, 2025
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