Skip to main content
One weather site to rule them all
checkweather.io
CheckWeather USPasadena
Forecast confidence: High · models disagree by 2°F

Pasadena weather

Loading live data…

Mostly clear,much the same tomorrow

NWS, the American and the European model agree on a high near 80° in Pasadena today. Tomorrow looks cloudy around 84°, with a 0% chance of rain.

80°61°
84°61°
82°63°
79°64°
82°64°
89°69°
Todaymodels agreeTomorrowmodels agreeSundaysplit ±5°Mondaysplit ±4°Tuesdaysplit ±5°Wednesdaysplit ±8°
NWSNational Blend (NBM)
79°
Mostly clear
Today 79°·Low 61°·Rain 0%
AmericanNOAA GFS
80°
Cloudy
Today 80°·Low 59°·Rain 0%
EuropeanECMWF
81°
Clear
Today 81°·Low 62°·Rain 0%
CheckWeather.io on iPhoneFree. No ads, no account.

Pasadena weather alerts and warnings

active National Weather Service watches, warnings and advisories

Checking the National Weather Service for active alerts covering Pasadena…

Pasadena weather in numbers

from 30 years of measured normals

Pasadena swings 46°F across the year, from 90°F highs in July to 44°F lows in February, and February is usually the wettest month in a year that brings about 35 in of precipitation.

Warmest month
July
90°F average high
Coldest month
February
44°F average low
Wettest month
February
35 in a year
Below freezing
Never
overnight lows stay above 32°F
Comfortable
4 months
January, March, April and May
Residents
142,000
share this forecast

The weather map: all three models at once

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

Pasadena 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…

Pasadena 10-day forecast, out to 14 days

where the models agree, and where they split
Today
Mostly clear
80° 61°
models agree
Tomorrow
Cloudy
84° 61°
models agree
Sun
Cloudy
82° 63°
±5°
Mon
Partly cloudy
79° 64°
±4°
Tue
Mostly clear
82° 64°
±5°
Wed
Clear
89° 69°
±8°
Thu
Clear
88° 71°
±5°
Fri
Cloudy
87° 70°
±8°
Sat
Mostly clear
87° 70°
±16°
Sun
Cloudy
91° 74°
±20°
Mon
Mostly clear
91° 76°
±18°
Tue
Cloudy
94° 81°
models agree
Wed
Clear
86° 70°
±6°
Thu
Clear
80° 67°
±9°

Pasadena, California (CA) is at its warmest in Jul (average highs near 90°F) and coldest in Feb (lows around 44°F), with roughly 35 in of precipitation across the year. Below, compare what NWS, American, European forecast for Pasadena 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.

Pasadena climate by month

average daytime high and overnight low across a typical year
Jan
60°
45°
Feb
61°
44°
Mar
61°
45°
Apr
70°
49°
May
72°
52°
Jun
78°
57°
Jul
90°
64°
Aug
89°
65°
Sep
84°
62°
Oct
82°
59°
Nov
71°
51°
Dec
67°
49°

Which forecast is most accurate in Pasadena?

CheckWeather Score, graded against the weather that actually happened
ProviderCheckWeather-scoreTempWindRainRun by
European logo
European ★ Best
94
/100rank #1
87±1.3°F97±0.9 mph100100% hitECMWF - European Centre for Medium-Range Weather ForecastsReading, United Kingdom
American logo
American
90
/100rank #2
89±1.1°F92±2.4 mph8994% 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)
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.

Where the models disagree

temperature and rain, judged separately
DayTemperatureRain
Today±2°79° to 81°models agree0% to 0% chance
Tomorrow±4°82° to 86°models agree0% to 0% chance
Sun±5°79° to 85°models agree0% to 0% chance
Mon±4°76° to 80°±1%0% to 1% chance
Tue±5°79° to 84°±1%0% to 1% 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 Pasadena

today, local time
Sunrise
06:38
Sunset
18:54
Daylight
12h 16m

Common questions

What's the weather in Pasadena today?
On this page we show what NWS, American, European each forecast for Pasadena 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 Pasadena today or tomorrow?
Check the hourly strip and 7-day forecast above. We compare rain from NWS, American, European for Pasadena 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 Pasadena?
Over the last 30 days, the European model has been the most accurate for Pasadena (CheckWeather Score 94/100), ahead of the American at 90. We grade every model against the recorded weather. See the US accuracy scoreboard for the full method.
What is the warmest month in Pasadena?
July is typically the warmest month in Pasadena, with average highs around 90°F.
How cold does Pasadena get?
The coldest month in Pasadena is February, when overnight lows average about 44°F.
How much rain does Pasadena get?
Pasadena sees roughly 35 in of precipitation a year, with February usually the wettest month.

Nearby

More US weather