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Fallbrook weather

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NWSNational Blend (NBM)
55°
Clear
Feels 55° · Wind 3 mph · Humidity 93%
AmericanNOAA GFS
56°
Clear
Feels 55° · Wind 4 mph · Humidity 86%
EuropeanECMWF
55°
Clear
Feels 55° · Wind 4 mph · Humidity 94%

Latest for Fallbrook: NWS (National Blend (NBM)): 55° Clear · American (NOAA GFS): 56° Clear · European (ECMWF): 55° Clear.

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Fallbrook weather alerts and warnings

active National Weather Service watches, warnings and advisories

Checking the National Weather Service for active alerts covering Fallbrook…

Fallbrook weather in numbers

measured normals and 10 years of recorded weather

Fallbrook swings 43°F across the year, from 87°F highs in August to 44°F lows in December, and February is usually the wettest month in a year that brings about 12 in of precipitation. Over 10 years of recorded weather it averages 174 days a year at 77°F or above, 73 of them at 86°F or above, 0 frost nights, and rain on 51 days.

Warmest month
August
87°F average high
Coldest month
December
44°F average low
Wettest month
February
12 in a year
Comfortable
4 months
January, March, April and May
Residents
31,000
share this forecast
Most accurate here
American
90/100 CheckWeather Score
Warm days
174 days
a year at 77°F or above
Frost nights
0 nights
a year below 32°F
Rain days
51 days
a year with 0.04 in or more

Day counts are from the ERA5 reanalysis for Fallbrook’s grid square, 2016 to 2025, counted the same way for every city so the numbers compare. A reanalysis square is an area, not a weather station, so it is good for counting days and not for a single day’s record.

The weather map: all three models at once

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

where the models agree, and where they split

Fallbrook, California (CA) is at its warmest in Aug (average highs near 87°F) and coldest in Dec (lows around 44°F), with roughly 12 in of precipitation across the year. Below, compare what NWS, American, European forecast for Fallbrook 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.

Fallbrook climate by month

average daytime high and overnight low across a typical year (1991-2020)
Jan
64°
45°
Feb
65°
46°
Mar
66°
48°
Apr
71°
50°
May
74°
55°
Jun
80°
58°
Jul
86°
58°
Aug
87°
61°
Sep
85°
61°
Oct
81°
54°
Nov
74°
48°
Dec
67°
44°

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

How the weather around Fallbrook has changed since 1995

Fallbrook sits in the same roughly 50 km square of NASA's reanalysis as Murrieta. That square ran 1.1°F warmer in 2015-2024 than in 1995-2004. See the full 30-year picture on the Murrieta page.

Which forecast is most accurate in Fallbrook?

CheckWeather Score, graded against the weather that actually happened
ProviderCheckWeather-scoreTempWindRainRun by
American logo
American ★ Best
90
/100rank #1
85±1.5°F91±3.0 mph9597% hitNOAA / NCEP (United States)College Park, Maryland, USA
European logo
European
87
/100rank #2
74±2.6°F96±1.4 mph9597% 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)
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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 Fallbrook today?
On this page we show what NWS, American, European each forecast for Fallbrook 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 Fallbrook today or tomorrow?
Check the hourly strip and 7-day forecast above. We compare rain from NWS, American, European for Fallbrook 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 Fallbrook?
Over the last 30 days, the American model has been the most accurate for Fallbrook (CheckWeather Score 90/100), ahead of the European at 87. We grade every model against the recorded weather. See the US accuracy scoreboard for the full method.
What is the warmest month in Fallbrook?
August is typically the warmest month in Fallbrook, with average highs around 87°F.
How cold does Fallbrook get?
The coldest month in Fallbrook is December, when overnight lows average about 44°F.
How much rain does Fallbrook get?
Fallbrook sees roughly 12 in of precipitation a year, with February usually the wettest month.

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