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Every US forecast, compared
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CheckWeather USSylmar
Forecast confidence: High · models disagree by 3°F

Sylmar weather

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Clear,rain likely tomorrow

NWS, the American and the European model agree on a high near 88° in Sylmar today. Tomorrow looks light drizzle around 79°, with a 87% chance of rain, and the models disagree, so treat it as uncertain.

88°61°
79°69°
90°68°
94°73°
101°77°
100°80°
Todaymodels agreeTomorrowsplit ±9°Mondaysplit ±9°Tuesdaysplit ±5°Wednesdaysplit ±7°Thursdaysplit ±7°
NWSNational Blend (NBM)
86°
Clear
Today 86°·Low 62°·Rain 0%
AmericanNOAA GFS
89°
Partly cloudy
Today 89°·Low 59°·Rain 0%
EuropeanECMWF
88°
Clear
Today 88°·Low 62°·Rain 4%

The weather map: all three models at once

NWS, American, European side by side around Sylmar 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
Clear
88° 61°
models agree
Tomorrow
Light drizzle
79° 69°
±9°
Mon
Clear
90° 68°
±9°
Tue
Partly cloudy
94° 73°
±5°
Wed
Mostly clear
101° 77°
±7°
Thu
Clear
100° 80°
±7°
Fri
Clear
92° 74°
models agree
Sat
Clear
87° 68°
models agree
Sun
Mostly clear
89° 67°
±7°
Mon
Mostly clear
90° 69°
±5°
Tue
Clear
92° 71°
±12°
Wed
Cloudy
94° 76°
models agree
Thu
Light drizzle
89° 73°
±9°
Fri
Mostly clear
88° 71°
±12°

Sylmar, CA is at its warmest in Jul (average highs near 93°F) and coldest in Jan (lows around 42°F), with roughly 31 in of precipitation across the year. Below, compare what NWS, American, European forecast for Sylmar 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.

Sylmar climate by month

average daytime high and overnight low across a typical year
Jan
59°
42°
Feb
59°
42°
Mar
60°
44°
Apr
70°
48°
May
72°
51°
Jun
80°
57°
Jul
93°
66°
Aug
91°
65°
Sep
85°
62°
Oct
83°
59°
Nov
69°
48°
Dec
67°
47°

Which forecast is most accurate in Sylmar?

CheckWeather Score — graded against the weather that actually happened
ProviderCheckWeather Score🌡 Temp💨 Wind🌧 RainRun by
European logo
European ★ Best
98
/100rank #1
97±0.3°F98±0.6 mph100100% hitECMWF - European Centre for Medium-Range Weather ForecastsReading, United Kingdom
American logo
American
92
/100rank #2
83±1.7°F94±1.8 mph100100% 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.

Where the models disagree

temperature and rain, judged separately
DayTemperatureRain
Today±3°86° to 89°±4%0% to 4% chance
Tomorrow±9°75° to 84°±66%21% to 87% chance
Mon±9°87° to 96°±12%2% to 14% chance
Tue±5°91° to 96°±2%6% to 8% chance
Wed±7°97° to 104°models agree10% to 10% 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 Sylmar

today, local time
Sunrise
06:30
Sunset
19:14
Daylight
12h 44m

Common questions

What's the weather in Sylmar today?
On this page we show what NWS, American, European each forecast for Sylmar 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 Sylmar today or tomorrow?
Check the hourly strip and 7-day forecast above. We compare rain from NWS, American, European for Sylmar 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 Sylmar?
Over the last 30 days, the European model has been the most accurate for Sylmar (CheckWeather Score 98/100), 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 Sylmar?
July is typically the warmest month in Sylmar, with average highs around 93°F.
How cold does Sylmar get?
The coldest month in Sylmar is January, when overnight lows average about 42°F.
How much rain does Sylmar get?
Sylmar sees roughly 31 in of precipitation a year, with February usually the wettest month.

Nearby

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