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Forecast confidence: High · models disagree by 4°F

Flagstaff weather

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Light drizzle,rain likely tomorrow

NWS, the American and the European model agree on a high near 77° in Flagstaff today. Tomorrow looks light drizzle around 77°, with a 86% chance of rain.

77°55°
77°59°
78°56°
81°58°
81°61°
83°61°
Todaymodels agreeTomorrowmodels agreeMondaymodels agreeTuesdaymodels agreeWednesdaymodels agreeThursdaysplit ±9°
NWSNational Blend (NBM)
75°
Partly cloudy
Today 75°·Low 52°·Rain 10%
AmericanNOAA GFS
79°
Light drizzle
Today 79°·Low 57°·Rain 10%
EuropeanECMWF
77°
Light drizzle
Today 77°·Low 55°·Rain 82%

The weather map: all three models at once

NWS, American, European side by side around Flagstaff 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
Light drizzle
77° 55°
models agree
Tomorrow
Light drizzle
77° 59°
models agree
Mon
Partly cloudy
78° 56°
models agree
Tue
Mostly clear
81° 58°
models agree
Wed
Light drizzle
81° 61°
models agree
Thu
Light drizzle
83° 61°
±9°
Fri
Light drizzle
78° 60°
±6°
Sat
Light drizzle
73° 57°
models agree
Sun
Mostly clear
75° 55°
±4°
Mon
Drizzle
76° 56°
±8°
Tue
Drizzle
76° 57°
±13°
Wed
Light drizzle
78° 59°
models agree
Thu
Showers
74° 58°
models agree
Fri
Heavy drizzle
71° 56°
models agree

Flagstaff, AZ is at its warmest in Jul (average highs near 87°F) and coldest in Jan (lows around 21°F), with roughly 18 in of precipitation across the year. Below, compare what NWS, American, European forecast for Flagstaff 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.

Flagstaff climate by month

average daytime high and overnight low across a typical year
Jan
37°
21°
Feb
38°
21°
Mar
43°
26°
Apr
57°
32°
May
68°
43°
Jun
79°
54°
Jul
87°
62°
Aug
80°
58°
Sep
76°
53°
Oct
66°
44°
Nov
50°
31°
Dec
47°
28°

Which forecast is most accurate in Flagstaff?

CheckWeather Score — graded against the weather that actually happened
ProviderCheckWeather Score🌡 Temp💨 Wind🌧 RainRun by
European logo
European ★ Best
79
/100rank #1
81±1.9°F94±1.8 mph6581% hitECMWF - European Centre for Medium-Range Weather ForecastsReading, United Kingdom
American logo
American
55
/100rank #2
83±1.7°F89±3.5 mph039% 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±4°75° to 79°±72%10% to 82% chance
Tomorrow±4°76° to 80°±72%14% to 86% chance
Mon±3°77° to 81°±28%3% to 31% chance
Tue±4°79° to 83°±11%13% to 24% chance
Wed±4°79° to 83°±20%41% to 61% 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 Flagstaff

today, local time
Sunrise
06:02
Sunset
18:48
Daylight
12h 46m

Common questions

What's the weather in Flagstaff today?
On this page we show what NWS, American, European each forecast for Flagstaff 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 Flagstaff today or tomorrow?
Check the hourly strip and 7-day forecast above. We compare rain from NWS, American, European for Flagstaff 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 Flagstaff?
Over the last 30 days, the European model has been the most accurate for Flagstaff (CheckWeather Score 79/100), ahead of the American at 55. We grade every model against the recorded weather. See the US accuracy scoreboard for the full method.
What is the warmest month in Flagstaff?
July is typically the warmest month in Flagstaff, with average highs around 87°F.
How cold does Flagstaff get?
The coldest month in Flagstaff is January, when overnight lows average about 21°F.
How much rain does Flagstaff get?
Flagstaff sees roughly 18 in of precipitation a year, with March usually the wettest month.

Nearby

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