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Forecast confidence: High · models disagree by 3°F

Olympia weather

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Fog,much the same tomorrow

NWS, the American and the European model agree on a high near 72° in Olympia today. Tomorrow looks fog around 75°, with a 0% chance of rain.

72°51°
75°48°
76°49°
75°49°
72°49°
69°48°
Todaymodels agreeTomorrowmodels agreeSundaysplit ±6°Mondaymodels agreeTuesdaymodels agreeWednesdaysplit ±5°
NWSNational Blend (NBM)
66°
Partly cloudy
Feels 68° · Wind 2 mph · Humidity 71%
AmericanNOAA GFS
61°
Overcast
Feels 62° · Wind 2 mph · Humidity 78%
EuropeanECMWF
66°
Partly cloudy
Feels 67° · Wind 1 mph · Humidity 66%

Latest for Olympia: NWS (National Blend (NBM)): 66° Partly cloudy · American (NOAA GFS): 61° Overcast · European (ECMWF): 66° Partly cloudy.

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Olympia weather alerts and warnings

active National Weather Service watches, warnings and advisories

Checking the National Weather Service for active alerts covering Olympia…

Olympia weather in numbers

from 30 years of measured normals

Olympia swings 46°F across the year, from 82°F highs in July to 36°F lows in January, and December is usually the wettest month in a year that brings about 46 in of precipitation.

Warmest month
July
82°F average high
Coldest month
January
36°F average low
Wettest month
December
46 in a year
Below freezing
Never
overnight lows stay above 32°F
Comfortable
4 months
May, June, September and October
Residents
56,000
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The weather map: all three models at once

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

where the models agree, and where they split
Today
Fog
72° 51°
models agree
Tomorrow
Fog
75° 48°
models agree
Sun
Cloudy
76° 49°
±6°
Mon
Cloudy
75° 49°
models agree
Tue
Cloudy
72° 49°
models agree
Wed
Partly cloudy
69° 48°
±5°
Thu
Cloudy
68° 49°
±9°
Fri
Cloudy
69° 49°
±6°
Sat
Mostly clear
70° 46°
±7°
Sun
Partly cloudy
70° 47°
±14°
Mon
Partly cloudy
69° 49°
±18°
Tue
Cloudy
65° 50°
models agree
Wed
Cloudy
60° 46°
models agree
Thu
Cloudy
65° 45°
±8°

Olympia, Washington (WA) is at its warmest in Jul (average highs near 82°F) and coldest in Jan (lows around 36°F), with roughly 46 in of precipitation across the year. Below, compare what NWS, American, European forecast for Olympia 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.

Olympia climate by month

average daytime high and overnight low across a typical year
Jan
46°
36°
Feb
48°
36°
Mar
52°
36°
Apr
56°
40°
May
67°
47°
Jun
71°
50°
Jul
82°
55°
Aug
80°
56°
Sep
72°
52°
Oct
61°
45°
Nov
50°
39°
Dec
49°
39°

Which forecast is most accurate in Olympia?

CheckWeather Score, graded against the weather that actually happened
ProviderCheckWeather-scoreTempWindRainRun by
European logo
European ★ Best
93
/100rank #1
94±0.6°F97±0.9 mph8994% hitECMWF - European Centre for Medium-Range Weather ForecastsReading, United Kingdom
American logo
American
86
/100rank #2
82±1.8°F96±1.2 mph8290% 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.

Where the models disagree

temperature and rain, judged separately
DayTemperatureRain
Today±3°71° to 74°models agree0% to 0% chance
Tomorrow±1°75° to 76°models agree0% to 0% chance
Sun±6°72° to 79°models agree0% to 0% chance
Mon±2°74° to 76°models agree0% to 0% chance
Tue±2°71° to 73°±2%0% to 2% 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 Olympia

today, local time
Sunrise
06:53
Sunset
19:16
Daylight
12h 23m

Common questions

What's the weather in Olympia today?
On this page we show what NWS, American, European each forecast for Olympia 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 Olympia today or tomorrow?
Check the hourly strip and 7-day forecast above. We compare rain from NWS, American, European for Olympia 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 Olympia?
Over the last 30 days, the European model has been the most accurate for Olympia (CheckWeather Score 93/100), ahead of the American at 86. We grade every model against the recorded weather. See the US accuracy scoreboard for the full method.
What is the warmest month in Olympia?
July is typically the warmest month in Olympia, with average highs around 82°F.
How cold does Olympia get?
The coldest month in Olympia is January, when overnight lows average about 36°F.
How much rain does Olympia get?
Olympia sees roughly 46 in of precipitation a year, with December usually the wettest month.

Nearby

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