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CheckWeather USRancho Santa Margarita
Forecast confidence: Low · models disagree by 8°F

Rancho Santa Margarita weather

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Mostly clear,rain likely tomorrow

NWS, the American and the European model put Rancho Santa Margarita's high today between 86° and 94°, a 8° split. Tomorrow looks light rain around 82°, with a 92% chance of rain.

90°61°
82°71°
92°72°
94°74°
98°78°
96°78°
Todaysplit ±8°Tomorrowsplit ±7°Mondaysplit ±6°Tuesdaysplit ±5°Wednesdaysplit ±7°Thursdaysplit ±11°
NWSNational Blend (NBM)
86°
Mostly clear
Today 86°·Low 62°·Rain 1%
AmericanNOAA GFS
90°
Cloudy
Today 90°·Low 58°·Rain 1%
EuropeanECMWF
94°
Light drizzle
Today 94°·Low 65°·Rain 62%

The weather map: all three models at once

NWS, American, European side by side around Rancho Santa Margarita 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
Mostly clear
90° 61°
±8°
Tomorrow
Light rain
82° 71°
±7°
Mon
Partly cloudy
92° 72°
±6°
Tue
Cloudy
94° 74°
±5°
Wed
Mostly clear
98° 78°
±7°
Thu
Clear
96° 78°
±11°
Fri
Clear
91° 73°
±11°
Sat
Clear
85° 68°
±7°
Sun
Clear
87° 67°
±13°
Mon
Clear
90° 68°
±12°
Tue
Light drizzle
92° 71°
±14°
Wed
Light drizzle
94° 77°
±6°
Thu
Light drizzle
89° 74°
±13°
Fri
Clear
89° 73°
±16°

Rancho Santa Margarita, CA is at its warmest in Jul (average highs near 89°F) and coldest in Feb (lows around 45°F), with roughly 28 in of precipitation across the year. Below, compare what NWS, American, European forecast for Rancho Santa Margarita 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.

Rancho Santa Margarita climate by month

average daytime high and overnight low across a typical year
Jan
61°
46°
Feb
60°
45°
Mar
60°
46°
Apr
68°
50°
May
71°
53°
Jun
78°
59°
Jul
89°
69°
Aug
88°
68°
Sep
84°
64°
Oct
82°
62°
Nov
72°
53°
Dec
69°
51°

Which forecast is most accurate in Rancho Santa Margarita?

CheckWeather Score — graded against the weather that actually happened
ProviderCheckWeather Score🌡 Temp💨 Wind🌧 RainRun by
American logo
American ★ Best
94
/100rank #1
87±1.3°F97±1.1 mph100100% hitNOAA / NCEP (United States)College Park, Maryland, USA
European logo
European
70
/100rank #2
28±7.2°F97±0.9 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±8°86° to 94°±61%1% to 62% chance
Tomorrow±7°79° to 86°±56%36% to 92% chance
Mon±6°89° to 96°±28%5% to 33% chance
Tue±5°91° to 96°±6%8% to 14% chance
Wed±7°94° to 101°±16%8% to 24% 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 Rancho Santa Margarita

today, local time
Sunrise
06:27
Sunset
19:10
Daylight
12h 43m

Common questions

What's the weather in Rancho Santa Margarita today?
On this page we show what NWS, American, European each forecast for Rancho Santa Margarita 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 Rancho Santa Margarita today or tomorrow?
Check the hourly strip and 7-day forecast above. We compare rain from NWS, American, European for Rancho Santa Margarita 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 Rancho Santa Margarita?
Over the last 30 days, the American model has been the most accurate for Rancho Santa Margarita (CheckWeather Score 94/100), ahead of the European at 70. We grade every model against the recorded weather. See the US accuracy scoreboard for the full method.
What is the warmest month in Rancho Santa Margarita?
July is typically the warmest month in Rancho Santa Margarita, with average highs around 89°F.
How cold does Rancho Santa Margarita get?
The coldest month in Rancho Santa Margarita is February, when overnight lows average about 45°F.
How much rain does Rancho Santa Margarita get?
Rancho Santa Margarita sees roughly 28 in of precipitation a year, with February usually the wettest month.

Nearby

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