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Forecast confidence: Medium · models disagree by 6°F

Pico Rivera weather

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Clear,much the same tomorrow

NWS, the American and the European model put Pico Rivera's high today between 76° and 81°, a 6° split. Tomorrow: mostly clear, around 80°, with a 0% chance of rain.

78°55°
80°58°
80°61°
79°61°
77°61°
74°63°
Todaysplit ±6°Tomorrowmodels agreeMondaymodels agreeTuesdaymodels agreeWednesdaysplit ±6°Thursdaysplit ±5°
NWSNational Blend (NBM)
76°
Clear
Today 76°·Low 57°·Rain 1%
AmericanNOAA GFS
81°
Clear
Today 81°·Low 55°·Rain 1%
EuropeanECMWF
76°
Cloudy
Today 76°·Low 53°·Rain 0%
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Pico Rivera weather alerts and warnings

active National Weather Service watches, warnings and advisories

Checking the National Weather Service for active alerts covering Pico Rivera…

Pico Rivera weather in numbers

measured normals and 10 years of recorded weather

Pico Rivera swings 44°F across the year, from 88°F highs in July to 44°F lows in December, and February is usually the wettest month in a year that brings about 16 in of precipitation. Over 10 years of recorded weather it averages 186 days a year at 77°F or above, 89 of them at 86°F or above, 0 frost nights, and rain on 38 days.

Warmest month
July
88°F average high
Coldest month
December
44°F average low
Wettest month
February
16 in a year
Comfortable
4 months
January, March, April and May
Residents
64,000
share this forecast
Most accurate here
European
95/100 CheckWeather Score
Warm days
186 days
a year at 77°F or above
Frost nights
0 nights
a year below 32°F
Rain days
38 days
a year with 0.04 in or more

Day counts are from the ERA5 reanalysis for Pico Rivera’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 Pico Rivera and nearby towns.Live rain radar →
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Pico Rivera 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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Pico Rivera 10-day forecast, out to 14 days

where the models agree, and where they split
Today
Clear
78° 55°
±6°
Tomorrow
Mostly clear
80° 58°
models agree
Mon
Mostly clear
80° 61°
models agree
Tue
Mostly clear
79° 61°
models agree
Wed
Cloudy
77° 61°
±6°
Thu
Cloudy
74° 63°
±5°
Fri
Light drizzle
71° 62°
models agree
Sat
Light rain
70° 61°
±7°
Sun
Light rain
73° 62°
±16°
Mon
Light drizzle
74° 62°
±17°
Tue
Light drizzle
75° 64°
models agree
Wed
Light drizzle
76° 61°
models agree
Thu
Cloudy
76° 64°
models agree

Pico Rivera, California (CA) is at its warmest in Jul (average highs near 88°F) and coldest in Dec (lows around 44°F), with roughly 16 in of precipitation across the year. Below, compare what NWS, American, European forecast for Pico Rivera 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.

Pico Rivera climate by month

average daytime high and overnight low across a typical year (1991-2020)
Jan
63°
46°
Feb
65°
47°
Mar
66°
50°
Apr
73°
51°
May
77°
58°
Jun
81°
61°
Jul
88°
62°
Aug
87°
63°
Sep
86°
64°
Oct
80°
55°
Nov
73°
50°
Dec
64°
44°

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

How the weather around Pico Rivera has changed since 1995

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

Which forecast is most accurate in Pico Rivera?

CheckWeather Score, graded against the weather that actually happened
ProviderCheckWeather-scoreTempWindRainRun by
European logo
European ★ Best
95
/100rank #1
90±1.0°F97±1.0 mph100100% hitECMWF - European Centre for Medium-Range Weather ForecastsReading, United Kingdom
American logo
American
92
/100rank #2
87±1.3°F94±1.8 mph9597% 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±6°76° to 81°±1%0% to 1% chance
Tomorrow±3°79° to 82°models agree0% to 0% chance
Mon±1°80° to 81°models agree0% to 0% chance
Tue±4°77° to 81°models agree0% to 0% chance
Wed±6°73° to 79°models agree0% to 0% 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 Pico Rivera

today, local time
Sunrise
07:05
Sunset
18:07
Daylight
11h 2m

Common questions

What's the weather in Pico Rivera today?
Saturday, October 24: NWS, the American and the European model put Pico Rivera's high today between 76° and 81°, a 6° split. Tomorrow: mostly clear, around 80°, with a 0% chance of rain. The forecast on this page refreshes live.
Will it rain in Pico Rivera today or tomorrow?
Rain looks unlikely in Pico Rivera on Sunday, October 25: no model gives more than 0% (NWS 0%, American 0%, European 0%). On Saturday, October 24 the highest chance of rain from any model is 1%. The hourly strip and the model-by-model rain panel above update live.
Which forecast is most accurate for Pico Rivera?
Over the last 30 days, the European model has been the most accurate for Pico Rivera (CheckWeather Score 95/100), ahead of the American at 92. We grade every model against the recorded weather. See the US accuracy scoreboard for the full method.
What is the warmest month in Pico Rivera?
July is typically the warmest month in Pico Rivera, with average highs around 88°F.
How cold does Pico Rivera get?
The coldest month in Pico Rivera is December, when overnight lows average about 44°F.
How much rain does Pico Rivera get?
Pico Rivera sees roughly 16 in of precipitation a year, with February usually the wettest month.

Nearby

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