Skip to main content
Every US forecast, compared
checkweather.io
CheckWeather USBrea
Forecast confidence: Medium · models disagree by 6°F

Brea weather

Loading live data…

Clear,rain likely tomorrow

NWS, the American and the European model put Brea's high today between 87° and 93°, a 6° split. Tomorrow looks drizzle around 80°, with a 95% chance of rain.

90°63°
80°70°
91°70°
93°73°
97°75°
95°75°
Todaysplit ±6°Tomorrowsplit ±8°Mondaysplit ±9°Tuesdaysplit ±8°Wednesdaysplit ±7°Thursdaysplit ±7°
NWSNational Blend (NBM)
87°
Clear
Today 87°·Low 64°·Rain 1%
AmericanNOAA GFS
93°
Partly cloudy
Today 93°·Low 61°·Rain 1%
EuropeanECMWF
92°
Light drizzle
Today 92°·Low 63°·Rain 35%

The weather map: all three models at once

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

Next 14 hours

consensus of the three models

14-day forecast

where the models agree, and where they split
Today
Clear
90° 63°
±6°
Tomorrow
Drizzle
80° 70°
±8°
Mon
Mostly clear
91° 70°
±9°
Tue
Cloudy
93° 73°
±8°
Wed
Cloudy
97° 75°
±7°
Thu
Clear
95° 75°
±7°
Fri
Clear
90° 73°
models agree
Sat
Mostly clear
85° 70°
models agree
Sun
Mostly clear
86° 68°
±7°
Mon
Clear
88° 69°
±4°
Tue
Light drizzle
90° 70°
±13°
Wed
Light drizzle
92° 74°
models agree
Thu
Light drizzle
89° 72°
±9°
Fri
Clear
89° 71°
±12°

Brea, CA is at its warmest in Jul (average highs near 88°F) and coldest in Jan (lows around 45°F), with roughly 34 in of precipitation across the year. Below, compare what NWS, American, European forecast for Brea 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.

Brea climate by month

average daytime high and overnight low across a typical year
Jan
62°
45°
Feb
62°
45°
Mar
62°
47°
Apr
70°
50°
May
72°
54°
Jun
78°
58°
Jul
88°
63°
Aug
87°
64°
Sep
84°
62°
Oct
82°
58°
Nov
73°
52°
Dec
69°
49°

Which forecast is most accurate in Brea?

CheckWeather Score — graded against the weather that actually happened
ProviderCheckWeather Score🌡 Temp💨 Wind🌧 RainRun by
American logo
American ★ Best
89
/100rank #1
77±2.3°F92±2.6 mph100100% hitNOAA / NCEP (United States)College Park, Maryland, USA
European logo
European
88
/100rank #2
72±2.8°F98±0.5 mph100100% 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.

Where the models disagree

temperature and rain, judged separately
DayTemperatureRain
Today±6°87° to 93°±34%1% to 35% chance
Tomorrow±8°76° to 84°±53%42% to 95% chance
Mon±9°88° to 97°±17%4% to 21% chance
Tue±8°90° to 97°±5%7% to 12% chance
Wed±7°94° to 100°±5%11% to 16% 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 Brea

today, local time
Sunrise
06:28
Sunset
19:12
Daylight
12h 44m

Common questions

What's the weather in Brea today?
On this page we show what NWS, American, European each forecast for Brea 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 Brea today or tomorrow?
Check the hourly strip and 7-day forecast above. We compare rain from NWS, American, European for Brea 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 Brea?
Over the last 30 days, the American model has been the most accurate for Brea (CheckWeather Score 89/100), ahead of the European at 88. We grade every model against the recorded weather. See the US accuracy scoreboard for the full method.
What is the warmest month in Brea?
July is typically the warmest month in Brea, with average highs around 88°F.
How cold does Brea get?
The coldest month in Brea is January, when overnight lows average about 45°F.
How much rain does Brea get?
Brea sees roughly 34 in of precipitation a year, with February usually the wettest month.

Nearby

More US weather