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

Eureka weather

Loading live data…

Eureka weather alerts and warnings

active National Weather Service watches, warnings and advisories

Checking the National Weather Service for active alerts covering Eureka…

Eureka weather in numbers

from 30 years of measured normals

Eureka swings 26°F across the year, from 66°F highs in August to 40°F lows in February, and January is usually the wettest month in a year that brings about 75 in of precipitation.

Warmest month
August
66°F average high
Coldest month
February
40°F average low
Wettest month
January
75 in a year
Below freezing
Never
overnight lows stay above 32°F
Comfortable
4 months
June, July, August and September
Residents
27,000
share this forecast

The weather map: all three models at once

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

Eureka 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…

Eureka 10-day forecast, out to 14 days

where the models agree, and where they split

Eureka, California (CA) is at its warmest in Aug (average highs near 66°F) and coldest in Feb (lows around 40°F), with roughly 75 in of precipitation across the year. Below, compare what NWS, American, European forecast for Eureka 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.

Eureka climate by month

average daytime high and overnight low across a typical year
Jan
55°
43°
Feb
53°
40°
Mar
52°
40°
Apr
55°
43°
May
59°
46°
Jun
60°
48°
Jul
64°
51°
Aug
66°
53°
Sep
65°
52°
Oct
63°
48°
Nov
58°
44°
Dec
57°
44°

Which forecast is most accurate in Eureka?

CheckWeather Score, graded against the weather that actually happened
ProviderCheckWeather-scoreTempWindRainRun by
American logo
American ★ Best
83
/100rank #1
84±1.6°F97±1.0 mph7184% hitNOAA / NCEP (United States)College Park, Maryland, USA
European logo
European
56
/100rank #2
14±8.6°F94±1.9 mph7687% hitECMWF - European Centre for Medium-Range Weather ForecastsReading, United Kingdom

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 Eureka today?
On this page we show what NWS, American, European each forecast for Eureka 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 Eureka today or tomorrow?
Check the hourly strip and 7-day forecast above. We compare rain from NWS, American, European for Eureka 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 Eureka?
Over the last 30 days, the American model has been the most accurate for Eureka (CheckWeather Score 83/100), ahead of the European at 56. We grade every model against the recorded weather. See the US accuracy scoreboard for the full method.
What is the warmest month in Eureka?
August is typically the warmest month in Eureka, with average highs around 66°F.
How cold does Eureka get?
The coldest month in Eureka is February, when overnight lows average about 40°F.
How much rain does Eureka get?
Eureka sees roughly 75 in of precipitation a year, with January usually the wettest month.

Nearby

More US weather