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CheckWeather USSouth Whittier
Forecast confidence: Medium · models disagree by 5°F

South Whittier weather

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Mostly clear,rain likely tomorrow

NWS, the American and the European model put South Whittier's high today between 88° and 94°, a 5° split. Tomorrow looks heavy drizzle around 81°, with a 95% chance of rain, and the models disagree, so treat it as uncertain.

91°64°
81°71°
92°70°
93°73°
98°75°
96°76°
Todaysplit ±5°Tomorrowsplit ±8°Mondaysplit ±9°Tuesdaysplit ±6°Wednesdaysplit ±5°Thursdaysplit ±6°
NWSNational Blend (NBM)
88°
Mostly clear
Today 88°·Low 65°·Rain 1%
AmericanNOAA GFS
94°
Mostly clear
Today 94°·Low 64°·Rain 1%
EuropeanECMWF
93°
Light drizzle
Today 93°·Low 64°·Rain 35%

The weather map: all three models at once

NWS, American, European side by side around South Whittier 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
91° 64°
±5°
Tomorrow
Heavy drizzle
81° 71°
±8°
Mon
Mostly clear
92° 70°
±9°
Tue
Cloudy
93° 73°
±6°
Wed
Cloudy
98° 75°
±5°
Thu
Clear
96° 76°
±6°
Fri
Clear
89° 74°
±5°
Sat
Mostly clear
85° 70°
±5°
Sun
Mostly clear
86° 69°
±8°
Mon
Mostly clear
88° 69°
models agree
Tue
Light drizzle
91° 71°
±11°
Wed
Light drizzle
92° 75°
models agree
Thu
Light drizzle
88° 72°
±12°
Fri
Clear
88° 72°
±15°

South Whittier, CA is at its warmest in Jul (average highs near 89°F) and coldest in Jan (lows around 46°F), with roughly 31 in of precipitation across the year. Below, compare what NWS, American, European forecast for South Whittier 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.

South Whittier climate by month

average daytime high and overnight low across a typical year
Jan
63°
46°
Feb
63°
46°
Mar
63°
47°
Apr
71°
51°
May
73°
55°
Jun
79°
59°
Jul
89°
64°
Aug
88°
64°
Sep
84°
63°
Oct
83°
58°
Nov
74°
52°
Dec
69°
50°

Which forecast is most accurate in South Whittier?

CheckWeather Score — graded against the weather that actually happened
ProviderCheckWeather Score🌡 Temp💨 Wind🌧 RainRun by
American logo
American ★ Best
89
/100rank #1
79±2.1°F91±2.7 mph100100% hitNOAA / NCEP (United States)College Park, Maryland, USA
European logo
European
87
/100rank #2
70±3.0°F97±1.0 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±5°88° to 94°±34%1% to 35% chance
Tomorrow±8°77° to 85°±52%43% to 95% chance
Mon±9°89° to 98°±18%3% to 21% chance
Tue±6°91° to 97°±6%6% to 12% chance
Wed±5°95° to 100°±2%11% to 13% 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 South Whittier

today, local time
Sunrise
06:28
Sunset
19:12
Daylight
12h 44m

Common questions

What's the weather in South Whittier today?
On this page we show what NWS, American, European each forecast for South Whittier 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 South Whittier today or tomorrow?
Check the hourly strip and 7-day forecast above. We compare rain from NWS, American, European for South Whittier 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 South Whittier?
Over the last 30 days, the American model has been the most accurate for South Whittier (CheckWeather Score 89/100), 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 South Whittier?
July is typically the warmest month in South Whittier, with average highs around 89°F.
How cold does South Whittier get?
The coldest month in South Whittier is January, when overnight lows average about 46°F.
How much rain does South Whittier get?
South Whittier sees roughly 31 in of precipitation a year, with February usually the wettest month.

Nearby

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