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East Palo Alto weather

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East Palo Alto weather alerts and warnings

active National Weather Service watches, warnings and advisories

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East Palo Alto weather in numbers

measured normals and 10 years of recorded weather

East Palo Alto swings 40°F across the year, from 82°F highs in July to 42°F lows in December, and January is usually the wettest month in a year that brings about 23 in of precipitation. Over 10 years of recorded weather it averages 112 days a year at 77°F or above, 25 of them at 86°F or above, 0 frost nights, and rain on 57 days.

Warmest month
July
82°F average high
Coldest month
December
42°F average low
Wettest month
January
23 in a year
Comfortable
4 months
March, April, May and October
Residents
30,000
share this forecast
Most accurate here
American
90/100 CheckWeather Score
Warm days
112 days
a year at 77°F or above
Frost nights
0 nights
a year below 32°F
Rain days
57 days
a year with 0.04 in or more

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

where the models agree, and where they split

East Palo Alto, California (CA) is at its warmest in Jul (average highs near 82°F) and coldest in Dec (lows around 42°F), with roughly 23 in of precipitation across the year. Below, compare what NWS, American, European forecast for East Palo Alto 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.

East Palo Alto climate by month

average daytime high and overnight low across a typical year (1991-2020)
Jan
57°
44°
Feb
59°
44°
Mar
62°
46°
Apr
67°
48°
May
75°
53°
Jun
80°
56°
Jul
82°
56°
Aug
82°
58°
Sep
80°
57°
Oct
74°
52°
Nov
64°
47°
Dec
56°
42°

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

How the weather around East Palo Alto has changed since 1995

East Palo Alto sits in the same roughly 50 km square of NASA's reanalysis as San Jose. That square ran 0.8°F warmer in 2015-2024 than in 1995-2004. See the full 30-year picture on the San Jose page.

Which forecast is most accurate in East Palo Alto?

CheckWeather Score, graded against the weather that actually happened
ProviderCheckWeather-scoreTempWindRainRun by
American logo
American ★ Best
90
/100rank #1
80±2.0°F91±2.8 mph100100% hitNOAA / NCEP (United States)College Park, Maryland, USA
European logo
European
88
/100rank #2
73±2.7°F96±1.3 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.

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 East Palo Alto today?
On this page we show what NWS, American, European each forecast for East Palo Alto 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 East Palo Alto today or tomorrow?
Check the hourly strip and 7-day forecast above. We compare rain from NWS, American, European for East Palo Alto 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 East Palo Alto?
Over the last 30 days, the American model has been the most accurate for East Palo Alto (CheckWeather Score 90/100), 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 East Palo Alto?
July is typically the warmest month in East Palo Alto, with average highs around 82°F.
How cold does East Palo Alto get?
The coldest month in East Palo Alto is December, when overnight lows average about 42°F.
How much rain does East Palo Alto get?
East Palo Alto sees roughly 23 in of precipitation a year, with January usually the wettest month.

Nearby

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