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Weather in Sarnia · ECCC forecast and 1991–2020 normals

Forecast for Sarnia: chance of rain showers or flurries tomorrow and highs near 6 degrees

Little rain is due later in the week: 3 of the next 4 days stay dry. For Sarnia, a normal November afternoon peaks at 8°C, and a normal night bottoms out at 0°C. The chance of rain tomorrow is 80%, with a breeze of 30 km/h and a low of 3°C.

Winter 0°/−7°CSpring 12°/2°CSummer 25°/15°CAutumn 15°/6°C
Right now
4°C
Light Rain
High 6°C · Low 3°C · Wind 33 km/h
Tomorrow 2°C cooler than a normal 14 November
Sunrise 07:19 · sunset 17:08
Observed at Sarnia Chris Hadfield Airport, 18:08
SPECIAL WEATHER STATEMENTIssued 15:54, 13 November · until 07:54, 14 NovemberDetails

ECCC’s full alert, with what to expect and what to do, is on its warnings page.

Environment and Climate Change Canada
Tomorrow
6°C / 3°C
A normal 14 November: 8°C / 1°C
Chance of rain or snow
80%
Expect some in the next 24 hours
Wind
33 km/h
From the NNW · gusts 48 km/h · up to 30 km/h tomorrow
Wind chill
−2
what it feels like now
Daylight
9 h 48 min
07:19 to 17:07
Hour by hour · °C

The next 24 hours in Sarnia

Temperatures top out near 13:00 (6°C) and dip lowest near 03:00 (1°C). Rain or snow most likely around 19:00 (80%).

19:00 · 2°C · Rain showers or flurries · 80% chance of rain or snow · wind 30 km/h80%2°Now20:00 · 2°C · Rain showers or flurries · 80% chance of rain or snow · wind 30 km/h21:00 · 3°C · Flurries or rain showers · 80% chance of rain · wind 30 km/h3°22:00 · 3°C · Flurries or rain showers · 80% chance of rain · wind 30 km/h22:0023:00 · 3°C · Flurries or rain showers · 80% chance of rain · wind 30 km/h3°00:00 · 2°C · Flurries or rain showers · 80% chance of rain or snow · wind 30 km/h01:00 · 2°C · Flurries or rain showers · 80% chance of rain or snow · wind 40 km/h2°01:0002:00 · 2°C · Flurries or rain showers · 80% chance of rain or snow · wind 40 km/h03:00 · 1°C · Flurries or rain showers · 80% chance of rain or snow · wind 40 km/h1°04:00 · 1°C · Flurries or rain showers · 80% chance of rain or snow · wind 30 km/h04:0005:00 · 1°C · Flurries or rain showers · 80% chance of rain or snow · wind 30 km/h1°06:00 · 1°C · Flurries or rain showers · 80% chance of rain or snow · wind 30 km/h07:00 · 1°C · Flurries or rain showers · 80% chance of rain or snow · wind 30 km/h1°07:0008:00 · 2°C · Flurries or rain showers · 80% chance of rain or snow · wind 30 km/h09:00 · 2°C · Chance of showers · 60% chance of rain or snow · wind 30 km/h2°10:00 · 3°C · Chance of showers · 60% chance of rain · wind 30 km/h10:0011:00 · 4°C · Chance of showers · 60% chance of rain · wind 30 km/h4°12:00 · 5°C · Chance of showers · 60% chance of rain · wind 30 km/h13:00 · 6°C · Chance of showers · 60% chance of rain · wind 30 km/h6°13:0014:00 · 6°C · Chance of showers · 60% chance of rain · wind 30 km/h15:00 · 5°C · Chance of showers · 60% chance of rain · wind 30 km/h5°16:00 · 5°C · Chance of showers · 60% chance of rain · wind 30 km/h16:0017:00 · 5°C · Chance of showers · 60% chance of rain · wind 30 km/h5°18:00 · 4°C · Chance of showers · 60% chance of rain · wind 30 km/h
TemperatureChance of rain or snowNight
7 days · °C

The week ahead, against a normal week

The week swings either side of normal. Tap a day for more.

Sat14 NovChance of rain showers or flurries60% chance3°6°−2°

Saturday: Flurries or rain showers ending in the morning then cloudy with 60 percent chance of rain showers. Wind northwest 30 km/h gusting to 50. High 6. UV index 1 or low.

Saturday night: Showers. Wind northwest 30 km/h gusting to 50. Low plus 3.

Sun15 NovChance of showers60% chance2°5°−3°

Sunday: A mix of sun and cloud with 60 percent chance of showers. High plus 5.

Sunday night: Clear. Low plus 2.

Mon16 NovSunny3°7°normal

Monday: Sunny. High 7.

Monday night: Clear. Low plus 3.

Tue17 NovSunny3°9°normal

Tuesday: Sunny. High 9.

Tuesday night: Clear. Low plus 3.

Wed18 NovSunny5°11°+4°

Wednesday: Sunny. High 11.

Wednesday night: Clear. Low plus 5.

Thu19 NovA mix of sun and cloud11°+4°

Thursday: A mix of sun and cloud. High 11.

Normal range for the date (ECCC 1991–2020 normals, Sarnia)Forecast low to high
A normal year

Where today sits in Sarnia’s year

Typical highs and lows month by month, from the ECCC averages.

Full climate →
Winter
0° / −7°
164 mm of rain and snow
Spring
12° / 2°
221 mm of rain and snow
Summer
25° / 15°
244 mm of rain and snow, the wettest season
Autumn now
15° / 6°
242 mm of rain and snow
Best months to be outside
JunJulAugSep
Highs of 17–27°C and nights of 8°C or more
When is it wettest?June, with 93 mm.When does the most snow fall?January, with 34 cm.What is each month like?Highs, lows, rain and snow for all 12.

Warnings and more

ECCC’s alerts, shown as issued; the full text is on its warnings page.

Weather alertsECCC’s full report on the alerts in force, with what to do.ECCC forecast: SarniaECCC’s city page for the site, 1.4 km from the town, with its radar and more.Sarnia’s climateThirty-year normals: temperatures, rain and snow, frost and heating.Flood & hazardsThe risks behind the weather: fire, flood, quakes and radon in Sarnia.

Forecast, current conditions and alerts: Environment and Climate Change Canada’s city page for Sarnia, fetched 13 November, 18:24. Normals: ECCC 1991–2020, Sarnia. Data Source: Environment and Climate Change Canada · ECCC Data Services End-use Licence

Adapted from Statistics Canada (Census of Population 2021, population estimates 2025, 2021 census boundaries) under the Statistics Canada Open Licence; this does not constitute an endorsement by Statistics Canada. Neighbourhood names in some cities © OpenStreetMap contributors (ODbL).