Skip to main content
Every US forecast, compared
checkweather.io
CheckWeather USNational City
Forecast confidence: Low · models disagree by 13°F

National City weather

Loading live data…

Cloudy,much the same tomorrow

NWS, the American and the European model put National City's high today between 81° and 94°, a 13° split. Tomorrow looks cloudy around 89°, with a 39% chance of rain, and the models disagree, so treat it as uncertain.

87°64°
89°73°
91°73°
91°76°
92°77°
88°76°
Todaysplit ±13°Tomorrowsplit ±11°Mondaysplit ±14°Tuesdaysplit ±17°Wednesdaysplit ±18°Thursdaysplit ±13°
NWSNational Blend (NBM)
81°
Partly cloudy
Today 81°·Low 67°·Rain 6%
AmericanNOAA GFS
87°
Cloudy
Today 87°·Low 62°·Rain 6%
EuropeanECMWF
94°
Cloudy
Today 94°·Low 64°·Rain 39%

The weather map: all three models at once

NWS, American, European side by side around National City 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
Cloudy
87° 64°
±13°
Tomorrow
Cloudy
89° 73°
±11°
Mon
Cloudy
91° 73°
±14°
Tue
Cloudy
91° 76°
±17°
Wed
Light drizzle
92° 77°
±18°
Thu
Clear
88° 76°
±13°
Fri
Clear
84° 73°
±8°
Sat
Mostly clear
80° 70°
±7°
Sun
Partly cloudy
80° 67°
±9°
Mon
Partly cloudy
80° 69°
±7°
Tue
Light drizzle
83° 69°
±8°
Wed
Heavy drizzle
86° 72°
±5°
Thu
Light drizzle
86° 71°
±9°
Fri
Mostly clear
87° 71°
±15°

National City, CA is at its warmest in Aug (average highs near 78°F) and coldest in Jan (lows around 47°F), with roughly 21 in of precipitation across the year. Below, compare what NWS, American, European forecast for National City 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.

National City climate by month

average daytime high and overnight low across a typical year
Jan
62°
47°
Feb
62°
48°
Mar
62°
50°
Apr
65°
52°
May
67°
57°
Jun
71°
60°
Jul
76°
64°
Aug
78°
65°
Sep
76°
64°
Oct
75°
58°
Nov
71°
51°
Dec
66°
49°

Which forecast is most accurate in National City?

CheckWeather Score — graded against the weather that actually happened
ProviderCheckWeather Score🌡 Temp💨 Wind🌧 RainRun by
American logo
American ★ Best
88
/100rank #1
79±2.1°F92±2.4 mph9597% hitNOAA / NCEP (United States)College Park, Maryland, USA
European logo
European
61
/100rank #2
13±8.7°F98±0.7 mph8994% 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±13°81° to 94°±33%6% to 39% chance
Tomorrow±11°82° to 93°±30%9% to 39% chance
Mon±14°83° to 97°±3%3% to 6% chance
Tue±17°83° to 99°±12%4% to 16% chance
Wed±18°83° to 102°±15%2% to 17% 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 National City

today, local time
Sunrise
06:25
Sunset
19:07
Daylight
12h 42m

Common questions

What's the weather in National City today?
On this page we show what NWS, American, European each forecast for National City 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 National City today or tomorrow?
Check the hourly strip and 7-day forecast above. We compare rain from NWS, American, European for National City 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 National City?
Over the last 30 days, the American model has been the most accurate for National City (CheckWeather Score 88/100), ahead of the European at 61. We grade every model against the recorded weather. See the US accuracy scoreboard for the full method.
What is the warmest month in National City?
August is typically the warmest month in National City, with average highs around 78°F.
How cold does National City get?
The coldest month in National City is January, when overnight lows average about 47°F.
How much rain does National City get?
National City sees roughly 21 in of precipitation a year, with January usually the wettest month.

Nearby

More US weather