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CheckWeather USSan Luis

San Luis weather

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NWSNational Blend (NBM)
92°
Partly cloudy
Feels 97° · Wind 11 mph · Humidity 53%
AmericanNOAA GFS
89°
Mainly clear
Feels 96° · Wind 7 mph · Humidity 62%
EuropeanECMWF
86°
Clear
Feels 93° · Wind 10 mph · Humidity 71%

Latest for San Luis: NWS (National Blend (NBM)): 92° Partly cloudy · American (NOAA GFS): 89° Mainly clear · European (ECMWF): 86° Clear.

The weather map: all three models at once

NWS, American, European side by side around San Luis and nearby towns.Live rain radar →
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Next 14 hours

consensus of the three models

7-day forecast

where the models agree, and where they split

San Luis, AZ is at its warmest in Jul (average highs near 111°F) and coldest in Jan (lows around 46°F), with roughly 3 in of precipitation across the year. Below, compare what NWS, American, European forecast for San Luis right now, and see exactly where they disagree.

San Luis climate by month

average daytime high and overnight low across a typical year
Jan
67°
46°
Feb
71°
48°
Mar
76°
53°
Apr
87°
59°
May
94°
67°
Jun
103°
75°
Jul
111°
85°
Aug
108°
84°
Sep
102°
77°
Oct
94°
67°
Nov
77°
54°
Dec
72°
49°

Which forecast is most accurate in the US?

CheckWeather Score — graded against the weather that actually happened
ProviderCheckWeather Score🌡 Temp💨 Wind🌧 RainRun by
European logo
European ★ Best
Behind Apple Weather, Windy
88
/100rank #1
85±1.5°F96±1.2 mph8592% hitECMWF — European Centre for Medium-Range Weather ForecastsReading, United Kingdom
American logo
American
Behind Windy & many free apps
74
/100rank #2
82±1.8°F92±2.6 mph5374% 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 40 cities. Lower error means a higher score. The apps you know (AccuWeather, Apple Weather, The Weather Channel) are built on these models.

Common questions

What's the weather in San Luis today?
On this page we show what NWS, American, European each forecast for San Luis 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 San Luis today or tomorrow?
Check the hourly strip and 7-day forecast above. We compare rain from NWS, American, European for San Luis 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 San Luis?
No single model is always right. NWS, American, European each run their own physics, so we line all three up: when they agree the San Luis forecast is reliable, and when they split you should expect surprises. See our tested US accuracy scoreboard for how the models compare.
What is the warmest month in San Luis?
July is typically the warmest month in San Luis, with average highs around 111°F.
How cold does San Luis get?
The coldest month in San Luis is January, when overnight lows average about 46°F.
How much rain does San Luis get?
San Luis sees roughly 3 in of precipitation a year, with December usually the wettest month.

The forecasts Americans check

The two biggest apps keep their model a secret, so we can't show their numbers, only link you to them. The National Weather Service is public, so its data sits right in the comparison above.

Nearby

More US weather