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Forecast confidence: Low · models disagree by 5°C

Whatcom weather

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Light drizzle,rain likely tomorrow

Env. Canada, the European and the American model put Whatcom's high today between 8° and 14°, a 5° split. Tomorrow: drizzle, around 14°, with a 84% chance of rain.

11°6°
14°7°
15°6°
12°7°
9°5°
8°4°
Todaysplit ±5°Tomorrowsplit ±3°Mondaymodels agreeTuesdaysplit ±3°Wednesdaymodels agreeThursdaysplit ±2°
Env. CanadaGEM model
7°
Partly cloudy
Feels 5° · Wind 1 km/h · Humidity 88%
EuropeanECMWF
6°
Overcast
Feels 4° · Wind 4 km/h · Humidity 80%
AmericanNOAA GFS
5°
Overcast
Feels 2° · Wind 3 km/h · Humidity 68%

Latest for Whatcom: Env. Canada (GEM model): 7° Partly cloudy · European (ECMWF): 6° Overcast · American (NOAA GFS): 5° Overcast.

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Whatcom weather in numbers

from 30 years of measured normals

Whatcom swings 26°C across the year, from 25°C highs in July to -1°C lows in December, and November is usually the wettest month in a year that brings about 1752 mm of precipitation.

Warmest month
July
25°C average high
Coldest month
December
-1°C average low
Wettest month
November
1752 mm a year
Below freezing
1 month
December
Comfortable
4 months
May, June, July and August
Residents
10,000
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The weather map: all three models at once

Env. Canada, European, American side by side around Whatcom and nearby towns.Live rain radar →
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Whatcom 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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Whatcom 10-day forecast, out to 14 days

where the models agree, and where they split
Today
Light drizzle
11° 6°
±5°
Tomorrow
Drizzle
14° 7°
±3°
Mon
Cloudy
15° 6°
models agree
Tue
Heavy drizzle
12° 7°
±3°
Wed
Showers
9° 5°
models agree
Thu
Cloudy
8° 4°
±2°
Fri
Clear
8° 2°
±4°
Sat
Cloudy
9° 1°
±3°
Sun
Cloudy
11° 2°
±4°
Mon
Light rain
11° 4°
±4°
Tue
Light rain
13° 4°
±3°
Wed
Light drizzle
10° 5°
models agree
Thu
Drizzle
13° 9°
±3°

Whatcom, British Columbia is at its warmest in Jul (average highs near 25°C) and coldest in Dec (lows around -1°C), with roughly 1752 mm of precipitation across the year. Below, compare what Env. Canada, European, American forecast for Whatcom 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.

Whatcom climate by month

average daytime high and overnight low across a typical year (1991-2020)
Jan
6°
0°
Feb
6°
0°
Mar
10°
1°
Apr
13°
4°
May
18°
7°
Jun
20°
10°
Jul
25°
12°
Aug
24°
13°
Sep
20°
11°
Oct
14°
7°
Nov
8°
3°
Dec
4°
-1°

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

How the weather around Whatcom has changed since 1995

Whatcom sits in the same roughly 50 km square of NASA's reanalysis as Abbotsford. That square shows no clear change in temperature between 1995-2004 and 2015-2024. See the full 30-year picture on the Abbotsford page.

Which forecast is most accurate in Whatcom?

CheckWeather Score, graded against the weather that actually happened
ProviderCheckWeather-scoreTempWindRainRun by
European logo
European ★ Best
92
/100rank #1
97±0.2°C98±1.2 km/h8290% hitECMWF - European Centre for Medium-Range Weather ForecastsReading, United Kingdom
American logo
American
82
/100rank #2
85±0.9°C91±4.7 km/h7184% hitNOAA / NCEP (United States)College Park, Maryland, USA
EC
Env. Canada
80
/100rank #3
82±1.0°C96±2.2 km/h6581% hitEnvironment and Climate Change CanadaDorval, Québec, Canada

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±5°8° to 14°±38%44% to 82% chance
Tomorrow±3°12° to 16°±36%48% to 84% chance
Mon±2°14° to 15°±25%4% to 29% chance
Tue±3°10° to 13°±17%45% to 62% chance
Wed±1°9° to 10°±22%51% to 73% 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 Whatcom

today, local time
Sunrise
07:43
Sunset
18:01
Daylight
10h 18m

Common questions

What's the weather in Whatcom today?
Saturday, October 24: Env. Canada, the European and the American model put Whatcom's high today between 8° and 14°, a 5° split. Tomorrow: drizzle, around 14°, with a 84% chance of rain. The forecast on this page refreshes live.
Will it rain in Whatcom today or tomorrow?
The models split on rain in Whatcom on Sunday, October 25: Env. Canada 69%, European 84%, American 48%. When they disagree like this, treat any single app's answer with caution. On Saturday, October 24 the highest chance of rain from any model is 82%. The hourly strip and the model-by-model rain panel above update live.
Which forecast is most accurate for Whatcom?
Over the last 30 days, the European model has been the most accurate for Whatcom (CheckWeather Score 92/100), ahead of the American at 82. We grade every model against the recorded weather. See the CA accuracy scoreboard for the full method.
What is the warmest month in Whatcom?
July is typically the warmest month in Whatcom, with average highs around 25°C.
How cold does Whatcom get?
The coldest month in Whatcom is December, when overnight lows average about -1°C.
How much rain does Whatcom get?
Whatcom sees roughly 1752 mm of precipitation a year, with November usually the wettest month.

Nearby

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