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Every Canadian forecast, compared
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CheckWeather CAGrand Lake
Forecast confidence: High · models disagree by 1°C

Grand Lake weather

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Light drizzle,warmer tomorrow

Env. Canada, the European and the American model agree on a high near 14° in Grand Lake today. Tomorrow looks cloudy around 22°, with a 20% chance of rain.

14°11°
22°10°
19°11°
18°
24°14°
20°12°
Todaymodels agreeTomorrowmodels agreeTuesdaymodels agreeWednesdaysplit ±5°Thursdaysplit ±4°Fridaysplit ±5°
Env. CanadaGEM model
13°
Light drizzle
Today 13°·Low 11°·Rain 67%
EuropeanECMWF
15°
Light drizzle
Today 15°·Low 12°·Rain 68%
AmericanNOAA GFS
13°
Drizzle
Today 13°·Low 10°·Rain 29%

The weather map: all three models at once

Env. Canada, European, American side by side around Grand Lake and nearby towns.Live rain radar →
Loading the three model maps…

Next 14 hours

consensus of the three models

14-day forecast

where the models agree, and where they split
Today
Light drizzle
14° 11°
models agree
Tomorrow
Cloudy
22° 10°
models agree
Tue
Heavy drizzle
19° 11°
models agree
Wed
Cloudy
18°
±5°
Thu
Showers
24° 14°
±4°
Fri
Cloudy
20° 12°
±5°
Sat
Cloudy
20° 10°
models agree
Sun
Heavy drizzle
23° 14°
±8°
Mon
Cloudy
19° 12°
±7°
Tue
Heavy drizzle
14° 11°
±5°
Wed
Light drizzle
20° 12°
models agree
Thu
Cloudy
21° 10°
models agree
Fri
Cloudy
19° 10°
models agree
Sat
Cloudy
17°
models agree

Grand Lake, New Brunswick is at its warmest in Jul (average highs near 26°C) and coldest in Feb (lows around -12°C), with roughly 1214 mm of precipitation across the year. Below, compare what Env. Canada, European, American forecast for Grand Lake 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.

Grand Lake climate by month

average daytime high and overnight low across a typical year
Jan
-1°
-9°
Feb
-2°
-12°
Mar
-4°
Apr
11°
May
18°
Jun
22°
13°
Jul
26°
18°
Aug
23°
16°
Sep
21°
13°
Oct
15°
Nov
Dec
-6°

Which forecast is most accurate in Grand Lake?

CheckWeather Score — graded against the weather that actually happened
ProviderCheckWeather Score🌡 Temp💨 Wind🌧 RainRun by
European logo
European ★ Best
85
/100rank #1
88±0.7°C98±1.2 km/t7184% hitECMWF - European Centre for Medium-Range Weather ForecastsReading, United Kingdom
EC
Env. Canada
78
/100rank #2
86±0.8°C94±2.9 km/t5877% hitEnvironment and Climate Change CanadaDorval, Québec, Canada
American logo
American
75
/100rank #3
82±1.0°C95±2.3 km/t5374% 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 1302 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.

Where the models disagree

temperature and rain, judged separately
DayTemperatureRain
Today±1°13° to 15°±39%29% to 68% chance
Tomorrow±1°21° to 22°±13%7% to 20% chance
Tue±1°19° to 20°±47%14% to 61% chance
Wed±5°16° to 21°±46%10% to 56% chance
Thu±4°23° to 27°±11%73% to 84% 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 Grand Lake

today, local time
Sunrise
06:50
Sunset
19:53
Daylight
13h 3m

Common questions

What's the weather in Grand Lake today?
On this page we show what Env. Canada, European, American each forecast for Grand Lake today, side by side and updated live. When all three agree the forecast is reliable; when they split, we flag it so you know the day is genuinely less certain.
Will it rain in Grand Lake today or tomorrow?
Check the hourly strip and 7-day forecast above. We compare rain from Env. Canada, European, American for Grand Lake and flag the days where the models disagree on whether showers actually arrive, which is exactly when a single app can catch you out.
Which forecast is most accurate for Grand Lake?
Over the last 30 days, the European model has been the most accurate for Grand Lake (CheckWeather Score 85/100), ahead of the Env. Canada at 78. We grade every model against the recorded weather. See the CA accuracy scoreboard for the full method.
What is the warmest month in Grand Lake?
July is typically the warmest month in Grand Lake, with average highs around 26°C.
How cold does Grand Lake get?
The coldest month in Grand Lake is February, when overnight lows average about -12°C.
How much rain does Grand Lake get?
Grand Lake sees roughly 1214 mm of precipitation a year, with June usually the wettest month.

Nearby

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