Skip to main content
One weather site to rule them all
checkweather.io

Snohomish weather

Loading live data…

NWSNational Blend (NBM)
34°
Partly cloudy
Feels 30° · Wind 1 mph · Humidity 100%
AmericanNOAA GFS
38°
Partly cloudy
Feels 33° · Wind 2 mph · Humidity 78%
EuropeanECMWF
40°
Overcast
Feels 35° · Wind 3 mph · Humidity 78%

Latest for Snohomish: NWS (National Blend (NBM)): 34° Partly cloudy · American (NOAA GFS): 38° Partly cloudy · European (ECMWF): 40° Overcast.

CheckWeather.io on iPhoneFree. No ads, no account.

Snohomish weather alerts and warnings

active National Weather Service watches, warnings and advisories

Checking the National Weather Service for active alerts covering Snohomish…

Snohomish weather in numbers

from 30 years of measured normals

Snohomish swings 44°F across the year, from 76°F highs in July to 32°F lows in December, and November is usually the wettest month in a year that brings about 47 in of precipitation.

Warmest month
July
76°F average high
Coldest month
December
32°F average low
Wettest month
November
47 in a year
Below freezing
Never
overnight lows stay above 32°F
Comfortable
4 months
May, June, July and August
Residents
9,670
share this forecast

The weather map: all three models at once

NWS, American, European side by side around Snohomish and nearby towns.Live rain radar →
Loading the three model maps…

Snohomish 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

Loading the three models…

Snohomish 10-day forecast, out to 14 days

where the models agree, and where they split

Snohomish, Washington (WA) is at its warmest in Jul (average highs near 76°F) and coldest in Dec (lows around 32°F), with roughly 47 in of precipitation across the year. Below, compare what NWS, American, European forecast for Snohomish 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 United States before you trust any single number.

Snohomish climate by month

average daytime high and overnight low across a typical year (1991-2020)
Jan
45°
33°
Feb
46°
33°
Mar
53°
35°
Apr
56°
39°
May
63°
45°
Jun
68°
50°
Jul
76°
53°
Aug
75°
55°
Sep
70°
52°
Oct
61°
45°
Nov
50°
38°
Dec
43°
32°

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

How the weather around Snohomish has changed since 1995

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

Which forecast is most accurate in the US?

CheckWeather Score, graded against the weather that actually happened
ProviderCheckWeather-scoreTempWindRainRun by
European logo
European ★ Best
93
/100rank #1
91±0.9°F97±1.1 mph9396% hitECMWF - European Centre for Medium-Range Weather ForecastsReading, United Kingdom
American logo
American
82
/100rank #2
83±1.7°F94±2.0 mph7184% 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 1999 cities. Lower error means a higher score. See which forecast model is most accurate in United States, 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 United States? Give each 1 to 5 stars.

NWSNational Blend (NBM)
Loading ratings…
AmericanNOAA GFS
Loading ratings…
EuropeanECMWF
Loading ratings…

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.

Common questions

What's the weather in Snohomish today?
On this page we show what NWS, American, European each forecast for Snohomish 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 Snohomish today or tomorrow?
Check the hourly strip and 7-day forecast above. We compare rain from NWS, American, European for Snohomish 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 Snohomish?
No single model is always right. NWS, American, European each run their own physics, so we line all three up: when they agree the Snohomish forecast is reliable, and when they split you should expect surprises. See our tested US accuracy scoreboard for how the models compare.
What is the warmest month in Snohomish?
July is typically the warmest month in Snohomish, with average highs around 76°F.
How cold does Snohomish get?
The coldest month in Snohomish is December, when overnight lows average about 32°F.
How much rain does Snohomish get?
Snohomish sees roughly 47 in of precipitation a year, with November usually the wettest month.

Nearby

More US weather