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Forecast confidence: Medium · models disagree by 3°C

Petrolia weather

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Mostly clear,much the same tomorrow

Env. Canada, the European and the American model put Petrolia's high today between 16° and 18°, a 3° split. Tomorrow: cloudy, around 19°, with a 1% chance of rain.

17°3°
19°6°
15°9°
13°6°
18°6°
21°9°
Todaysplit ±3°Tomorrowmodels agreeMondaysplit ±3°Tuesdaysplit ±4°Wednesdaysplit ±5°Thursdaysplit ±4°
Env. CanadaGEM model
2°
Clear
Feels -1° · Wind 8 km/h · Humidity 94%
EuropeanECMWF
5°
Clear
Feels 3° · Wind 3 km/h · Humidity 89%
AmericanNOAA GFS
2°
Clear
Feels -1° · Wind 8 km/h · Humidity 87%

Latest for Petrolia: Env. Canada (GEM model): 2° Clear · European (ECMWF): 5° Clear · American (NOAA GFS): 2° Clear.

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Petrolia weather in numbers

from 30 years of measured normals

Petrolia swings 34°C across the year, from 26°C highs in July to -8°C lows in February, and September is usually the wettest month in a year that brings about 1047 mm of precipitation.

Warmest month
July
26°C average high
Coldest month
February
-8°C average low
Wettest month
September
1047 mm a year
Below freezing
4 months
January, February, March and December
Comfortable
4 months
May, June, July and August
Residents
5,632
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The weather map: all three models at once

Env. Canada, European, American side by side around Petrolia and nearby towns.Live rain radar →
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Petrolia hourly forecast: next 14 hours

consensus of the three models

Rain in the next 24 hours, model by model

each model's own hourly precipitation, side by side

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Petrolia 10-day forecast, out to 14 days

where the models agree, and where they split
Today
Mostly clear
17° 3°
±3°
Tomorrow
Cloudy
19° 6°
models agree
Mon
Cloudy
15° 9°
±3°
Tue
Cloudy
13° 6°
±4°
Wed
Cloudy
18° 6°
±5°
Thu
Partly cloudy
21° 9°
±4°
Fri
Clear
17° 7°
±3°
Sat
Cloudy
19° 10°
models agree
Sun
Rain
19° 13°
models agree
Mon
Light rain
16° 6°
±3°
Tue
Drizzle
9° 3°
models agree
Wed
Light drizzle
9° 1°
models agree
Thu
Light drizzle
11° 4°
±6°
Fri
Light drizzle
12° 4°
±5°

Petrolia, Ontario is at its warmest in Jul (average highs near 26°C) and coldest in Feb (lows around -8°C), with roughly 1047 mm of precipitation across the year. Below, compare what Env. Canada, European, American forecast for Petrolia right now, and see exactly where they disagree.

We grade every model against the weather that actually happened, so you can see which forecast model is most accurate in Canada before you trust any single number.

Petrolia climate by month

average daytime high and overnight low across a typical year (1991-2020)
Jan
-1°
-7°
Feb
1°
-8°
Mar
5°
-4°
Apr
12°
1°
May
19°
7°
Jun
24°
13°
Jul
26°
16°
Aug
25°
16°
Sep
22°
12°
Oct
15°
6°
Nov
7°
0°
Dec
1°
-4°

Source: 1991-2020 averages, ERA5 for this place adjusted with NASA POWER.

How the weather around Petrolia has changed since 1995

Petrolia sits in the same roughly 50 km square of NASA's reanalysis as Strathroy. That square ran 1.0°C warmer in 2015-2024 than in 1995-2004. See the full 30-year picture on the Strathroy page.

Which forecast is most accurate in Petrolia?

CheckWeather Score, graded against the weather that actually happened
ProviderCheckWeather-scoreTempWindRainRun by
EC
Env. Canada ★ Best
88
/100rank #1
91±0.5°C91±4.4 km/h8290% hitEnvironment and Climate Change CanadaDorval, Québec, Canada
European logo
European
88
/100rank #2
82±1.0°C96±2.1 km/h8994% hitECMWF - European Centre for Medium-Range Weather ForecastsReading, United Kingdom
American logo
American
84
/100rank #3
87±0.7°C96±1.9 km/h7184% hitNOAA / NCEP (United States)College Park, Maryland, USA

The CheckWeather Score blends temperature, wind and rain accuracy, each measured against ERA5 (the recorded weather) over the last 30 days across 1320 cities. Lower error means a higher score. See which forecast model is most accurate in Canada, how we measure forecast accuracy, or which model each weather app uses.

What do you think of the forecasts?

your vote counts

The accuracy above is the measured record. This is your opinion: which forecast service do you trust most in Canada? Give each 1 to 5 stars.

Env. CanadaGEM model
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EuropeanECMWF
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AmericanNOAA GFS
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One vote per service. Anonymous: we store no personal data, only a one-way hash of your connection for a day to stop double votes.

Where the models disagree

temperature and rain, judged separately
DayTemperatureRain
Today±3°16° to 18°models agree0% to 0% chance
Tomorrow±2°18° to 20°±1%0% to 1% chance
Mon±3°14° to 17°±2%0% to 2% chance
Tue±4°11° to 15°models agree0% to 0% chance
Wed±5°16° to 21°±7%0% to 7% chance

The models often agree on temperature and still split on rain, and rain is usually what decides whether a plan survives. A wide rain range means the shower is genuinely uncertain, not that the forecast is wrong.

Sunrise and sunset in Petrolia

today, local time
Sunrise
07:53
Sunset
18:31
Daylight
10h 38m

Common questions

What's the weather in Petrolia today?
Saturday, October 24: Env. Canada, the European and the American model put Petrolia's high today between 16° and 18°, a 3° split. Tomorrow: cloudy, around 19°, with a 1% chance of rain. The forecast on this page refreshes live.
Will it rain in Petrolia today or tomorrow?
Rain looks unlikely in Petrolia on Sunday, October 25: no model gives more than 1% (Env. Canada 0%, European 0%, American 1%). On Saturday, October 24 the highest chance of rain from any model is 0%. The hourly strip and the model-by-model rain panel above update live.
Which forecast is most accurate for Petrolia?
Over the last 30 days, the Env. Canada model has been the most accurate for Petrolia (CheckWeather Score 88/100), ahead of the European at 88. We grade every model against the recorded weather. See the CA accuracy scoreboard for the full method.
What is the warmest month in Petrolia?
July is typically the warmest month in Petrolia, with average highs around 26°C.
How cold does Petrolia get?
The coldest month in Petrolia is February, when overnight lows average about -8°C.
How much rain does Petrolia get?
Petrolia sees roughly 1047 mm of precipitation a year, with September usually the wettest month.

Nearby

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