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Spanaway weather

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Spanaway weather alerts and warnings

active National Weather Service watches, warnings and advisories

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Spanaway weather in numbers

from 30 years of measured normals

Spanaway swings 47°F across the year, from 81°F highs in July to 34°F lows in January, and December is usually the wettest month in a year that brings about 47 in of precipitation.

Warmest month
July
81°F average high
Coldest month
January
34°F average low
Wettest month
December
47 in a year
Below freezing
Never
overnight lows stay above 32°F
Comfortable
4 months
May, June, September and October
Residents
27,000
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The weather map: all three models at once

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

where the models agree, and where they split

Spanaway, Washington (WA) is at its warmest in Jul (average highs near 81°F) and coldest in Jan (lows around 34°F), with roughly 47 in of precipitation across the year. Below, compare what NWS, American, European forecast for Spanaway 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.

Spanaway climate by month

average daytime high and overnight low across a typical year
Jan
46°
34°
Feb
47°
34°
Mar
52°
34°
Apr
55°
39°
May
66°
46°
Jun
70°
50°
Jul
81°
55°
Aug
79°
56°
Sep
71°
52°
Oct
61°
45°
Nov
50°
37°
Dec
49°
37°

Which forecast is most accurate in Spanaway?

CheckWeather Score, graded against the weather that actually happened
ProviderCheckWeather-scoreTempWindRainRun by
European logo
European ★ Best
88
/100rank #1
92±0.8°F97±0.8 mph7687% hitECMWF - European Centre for Medium-Range Weather ForecastsReading, United Kingdom
American logo
American
84
/100rank #2
87±1.3°F96±1.1 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)
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AmericanNOAA GFS
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EuropeanECMWF
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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.

Common questions

What's the weather in Spanaway today?
On this page we show what NWS, American, European each forecast for Spanaway 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 Spanaway today or tomorrow?
Check the hourly strip and 7-day forecast above. We compare rain from NWS, American, European for Spanaway 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 Spanaway?
Over the last 30 days, the European model has been the most accurate for Spanaway (CheckWeather Score 88/100), ahead of the American at 84. We grade every model against the recorded weather. See the US accuracy scoreboard for the full method.
What is the warmest month in Spanaway?
July is typically the warmest month in Spanaway, with average highs around 81°F.
How cold does Spanaway get?
The coldest month in Spanaway is January, when overnight lows average about 34°F.
How much rain does Spanaway get?
Spanaway sees roughly 47 in of precipitation a year, with December usually the wettest month.

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