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Forecast confidence: High · models disagree by 3°F

Mesa weather

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Mostly clear,much the same tomorrow

NWS, the American and the European model agree on a high near 76° in Mesa today. Tomorrow: clear, around 80°, with a 1% chance of rain.

76°56°
80°56°
82°60°
84°63°
86°64°
85°66°
Todaymodels agreeTomorrowmodels agreeMondaymodels agreeTuesdaymodels agreeWednesdaysplit ±6°Thursdaysplit ±6°
NWSNational Blend (NBM)
60°
Clear
Feels 58° · Wind 3 mph · Humidity 66%
AmericanNOAA GFS
57°
Clear
Feels 54° · Wind 4 mph · Humidity 59%
EuropeanECMWF
59°
Clear
Feels 57° · Wind 4 mph · Humidity 77%

Latest for Mesa: NWS (National Blend (NBM)): 60° Clear · American (NOAA GFS): 57° Clear · European (ECMWF): 59° Clear.

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Mesa weather alerts and warnings

active National Weather Service watches, warnings and advisories

Checking the National Weather Service for active alerts covering Mesa…

Mesa weather in numbers

measured normals and 10 years of recorded weather

Mesa swings 62°F across the year, from 105°F highs in July to 43°F lows in December, and August is usually the wettest month in a year that brings about 9 in of precipitation. Over 10 years of recorded weather it averages 247 days a year at 77°F or above, 191 of them at 86°F or above, 1 frost night, and rain on 37 days.

Warmest month
July
105°F average high
Coldest month
December
43°F average low
Wettest month
August
9 in a year
Comfortable
4 months
January, February, March and November
Residents
472,000
share this forecast
Most accurate here
European
97/100 CheckWeather Score
Warm days
247 days
a year at 77°F or above
Frost nights
1 night
a year below 32°F
Rain days
37 days
a year with 0.04 in or more

Day counts are from the ERA5 reanalysis for Mesa’s grid square, 2016 to 2025, counted the same way for every city so the numbers compare. A reanalysis square is an area, not a weather station, so it is good for counting days and not for a single day’s record.

The weather map: all three models at once

NWS, American, European side by side around Mesa and nearby towns.Live rain radar →
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Mesa in 3D: the weather on the streets, hour by hour

Rain, sun and real shadows drawn on a 3D map of Mesa, 48 hours ahead. Drag the timeline, pick what you are doing or where you are going, and read the verdict for that hour.Full screen ↗

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Mesa hourly forecast: next 14 hours

consensus of the three models

Rain in the next 24 hours, model by model

each model's own hourly precipitation, side by side

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Mesa 10-day forecast, out to 14 days

where the models agree, and where they split
Today
Mostly clear
76° 56°
models agree
Tomorrow
Clear
80° 56°
models agree
Mon
Clear
82° 60°
models agree
Tue
Clear
84° 63°
models agree
Wed
Cloudy
86° 64°
±6°
Thu
Light drizzle
85° 66°
±6°
Fri
Light drizzle
78° 65°
±4°
Sat
Drizzle
72° 64°
±6°
Sun
Drizzle
75° 62°
±13°
Mon
Drizzle
76° 62°
±19°
Tue
Cloudy
79° 64°
±12°
Wed
Drizzle
79° 63°
±10°
Thu
Cloudy
73° 63°
±13°

Mesa, Arizona (AZ) is at its warmest in Jul (average highs near 105°F) and coldest in Dec (lows around 43°F), with roughly 9 in of precipitation across the year. Below, compare what NWS, American, European forecast for Mesa 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.

Mesa climate by month

average daytime high and overnight low across a typical year (1991-2020)
Jan
64°
44°
Feb
68°
46°
Mar
74°
52°
Apr
84°
56°
May
94°
68°
Jun
102°
75°
Jul
105°
82°
Aug
103°
81°
Sep
99°
73°
Oct
87°
61°
Nov
75°
52°
Dec
65°
43°

Source: 1991-2020 averages, ERA5 for this place adjusted with NASA POWER.

How the weather around Mesa has changed since 1995

Mesa sits in the same roughly 50 km square of NASA's reanalysis as Phoenix. That square ran 1.6°F warmer in 2015-2024 than in 1995-2004. See the full 30-year picture on the Phoenix page.

Which forecast is most accurate in Mesa?

CheckWeather Score, graded against the weather that actually happened
ProviderCheckWeather-scoreTempWindRainRun by
European logo
European ★ Best
97
/100rank #1
94±0.6°F97±1.1 mph100100% hitECMWF - European Centre for Medium-Range Weather ForecastsReading, United Kingdom
American logo
American
74
/100rank #2
86±1.4°F91±2.7 mph4771% 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.

What do you think of the forecasts?

your vote counts

The accuracy above is the measured record. This is your opinion: which forecast service do you trust most in United States? Give each 1 to 5 stars.

NWSNational Blend (NBM)
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AmericanNOAA GFS
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EuropeanECMWF
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One vote per service. Anonymous: we store no personal data, only a one-way hash of your connection for a day to stop double votes.

Where the models disagree

temperature and rain, judged separately
DayTemperatureRain
Today±3°75° to 78°±8%1% to 9% chance
Tomorrow±3°78° to 81°±1%0% to 1% chance
Mon±1°82° to 83°models agree0% to 0% chance
Tue±2°83° to 84°models agree0% to 0% chance
Wed±6°83° to 88°models agree0% to 0% 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 Mesa

today, local time
Sunrise
06:39
Sunset
17:43
Daylight
11h 4m

Common questions

What's the weather in Mesa today?
Saturday, October 24: NWS, the American and the European model agree on a high near 76° in Mesa today. Tomorrow: clear, around 80°, with a 1% chance of rain. The forecast on this page refreshes live.
Will it rain in Mesa today or tomorrow?
Rain looks unlikely in Mesa on Sunday, October 25: no model gives more than 1% (NWS 1%, American 1%, European 0%). On Saturday, October 24 the highest chance of rain from any model is 9%. The hourly strip and the model-by-model rain panel above update live.
Which forecast is most accurate for Mesa?
Over the last 30 days, the European model has been the most accurate for Mesa (CheckWeather Score 97/100), ahead of the American at 74. We grade every model against the recorded weather. See the US accuracy scoreboard for the full method.
What is the warmest month in Mesa?
July is typically the warmest month in Mesa, with average highs around 105°F.
How cold does Mesa get?
The coldest month in Mesa is December, when overnight lows average about 43°F.
How much rain does Mesa get?
Mesa sees roughly 9 in of precipitation a year, with August usually the wettest month.

Nearby

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