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Flagstaff, Arizona 7 Day Weather Forecast
Wx Forecast - Wx Discussion - Wx Aviation
NWS Forecast for Flagstaff AZ
National Weather Service Forecast for: Flagstaff AZ
Issued by: National Weather Service Flagstaff, AZ
Updated: 9:16 am MST Jul 8, 2025
 
Today

Today: A 30 percent chance of showers and thunderstorms, mainly between 11am and 5pm.  Increasing clouds, with a high near 88. Light southwest wind becoming west 5 to 9 mph in the morning.
Chance
T-storms
Tonight

Tonight: A 10 percent chance of showers and thunderstorms before 8pm.  Mostly cloudy, then gradually becoming clear, with a low around 57. West wind around 5 mph becoming calm.
Slight Chance
T-storms then
Mostly Clear
Wednesday

Wednesday: A 20 percent chance of showers and thunderstorms after 11am.  Sunny, with a high near 91. Light and variable wind becoming southwest 5 to 10 mph in the morning. Winds could gust as high as 17 mph.
Slight Chance
T-storms
Wednesday
Night
Wednesday Night: Mostly clear, with a low around 59. West wind 5 to 7 mph.
Mostly Clear

Thursday

Thursday: Sunny, with a high near 90. Southwest wind 8 to 17 mph, with gusts as high as 28 mph.
Sunny

Thursday
Night
Thursday Night: Mostly clear, with a low around 57. West wind 13 to 15 mph, with gusts as high as 23 mph.
Mostly Clear

Friday

Friday: Sunny, with a high near 88. West wind around 14 mph, with gusts as high as 22 mph.
Sunny

Friday
Night
Friday Night: Mostly clear, with a low around 57. West wind 10 to 13 mph, with gusts as high as 21 mph.
Mostly Clear

Saturday

Saturday: A 10 percent chance of showers and thunderstorms after 11am.  Sunny, with a high near 88. West wind around 11 mph, with gusts as high as 17 mph.
Slight Chance
T-storms
Hi 88 °F Lo 57 °F Hi 91 °F Lo 59 °F Hi 90 °F Lo 57 °F Hi 88 °F Lo 57 °F Hi 88 °F

 

Today
 
A 30 percent chance of showers and thunderstorms, mainly between 11am and 5pm. Increasing clouds, with a high near 88. Light southwest wind becoming west 5 to 9 mph in the morning.
Tonight
 
A 10 percent chance of showers and thunderstorms before 8pm. Mostly cloudy, then gradually becoming clear, with a low around 57. West wind around 5 mph becoming calm.
Wednesday
 
A 20 percent chance of showers and thunderstorms after 11am. Sunny, with a high near 91. Light and variable wind becoming southwest 5 to 10 mph in the morning. Winds could gust as high as 17 mph.
Wednesday Night
 
Mostly clear, with a low around 59. West wind 5 to 7 mph.
Thursday
 
Sunny, with a high near 90. Southwest wind 8 to 17 mph, with gusts as high as 28 mph.
Thursday Night
 
Mostly clear, with a low around 57. West wind 13 to 15 mph, with gusts as high as 23 mph.
Friday
 
Sunny, with a high near 88. West wind around 14 mph, with gusts as high as 22 mph.
Friday Night
 
Mostly clear, with a low around 57. West wind 10 to 13 mph, with gusts as high as 21 mph.
Saturday
 
A 10 percent chance of showers and thunderstorms after 11am. Sunny, with a high near 88. West wind around 11 mph, with gusts as high as 17 mph.
Saturday Night
 
Mostly clear, with a low around 56. West wind 10 to 14 mph.
Sunday
 
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 89. West wind around 15 mph, with gusts as high as 23 mph.
Sunday Night
 
A 10 percent chance of showers and thunderstorms. Mostly clear, with a low around 55. West wind around 13 mph, with gusts as high as 21 mph.
Monday
 
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 89. West wind 11 to 13 mph, with gusts as high as 20 mph.

 

Forecast from NOAA-NWS for Flagstaff AZ.

Weather Forecast Discussion
364
FXUS65 KFGZ 081059
AFDFGZ

Area Forecast Discussion
National Weather Service Flagstaff AZ
359 AM MST Tue Jul 8 2025

.SYNOPSIS...Hot daytime highs and mostly dry conditions forecast
through the week. Slight chances for showers/storms across the
higher terrain today and tomorrow, becoming more focused across
the White Mountains for the rest of the period.

&&

.DISCUSSION...An area of high pressure remains centered over the
AZ/NM border, but we`ll gradually see this high shift around the
region through the next several days. With the current placement
of this ridge, daytime highs will continue to climb into the hot
to dangerously hot range. An Extreme Heat Warning is in effect for
lower elevations of the Grand Canyon through Thursday evening, but
this product will likely get extended due to the forecast 110+
temperatures sticking around through at least the weekend. Outside
of heat, there are slight chances for showers and thunderstorms
this afternoon across the Mogollon Rim, White Mountains, and
Yavapai County.

Wednesday through Friday...The previously mentioned ridge will
gradually move westward through the end of the week, and weaken
from a trough passing through the Pacific Northwest and moving
into the upper-midwest. Daytime highs are forecast to peak on
Wednesday before slightly dropping from the weakening ridge, and
chances for precipitation look to become limited to the White
Mountains. An Extreme Heat Warning is in effect for Wednesday
afternoon/evening for the lower elevations of the Grand Canyon and
the lower elevations of northern Gila and Yavapai counties.

This weekend through early next week...With no large sweeping
trough on the horizon, high pressure will once again build across
the Southwest. We don`t look to return to a favorable monsoon
pattern by the end of the forecast period, so outside of climbing
daytime highs, precipitation chances look limited to the higher
terrain.

&&

.AVIATION...Tuesday 08/12Z through Wednesday 09/12Z...VFR
conditions forecast through the period. Light and variable winds
will continue through 18Z, before SW winds 5-15 kts return.
Chances for -SHRA/-TSRA between 19Z-02Z for areas along and south
of a KGCN-KFLG-KSOW line. Gusty/erratic winds possible near
storms. Light and variable winds return after 04Z.

OUTLOOK...Wednesday 09/12Z through Friday 11/12Z...VFR conditions
expected through the period. Slight chances for -SHRA/-TSRA
between 18Z-03Z, primarily along and south of a KSEZ-KSJN line.
Outside of gusty/erratic storm driven winds, look for W winds
10-20 kts each afternoon, becoming light and variable overnight.

&&

.FIRE WEATHER...Tuesday and Wednesday...Hot and mostly dry
conditions forecast to continue, outside of isolated storms across
the higher terrain. Minimum RH values look to be 10-20% each
afternoon with overnight recoveries between 30-60%. Look for
westerly winds 5-15 mph, but gusty/erratic winds are possible near
storms.

Thursday through Saturday...Hot temperatures will continue through
the weekend. Daily chances for showers/storms across the White
Mountains, but elsewhere should remain mostly sunny/dry. Look for
westerly winds each afternoon at 10-20 mph on Thursday and gradually
decreasing through the weekend. Minimum RH values between 8-20%.

&&

.FGZ WATCHES/WARNINGS/ADVISORIES...
Extreme Heat Warning until 8 PM MST Thursday for AZZ006.

Extreme Heat Warning from 10 AM to 8 PM MST Wednesday for AZZ018-
037.

&&

$$

PUBLIC...Konieczny
AVIATION...Konieczny
FIRE WEATHER...Konieczny

For Northern Arizona weather information visit
weather.gov/flagstaff
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Forecast Discussion from: NOAA-NWS Script developed by: El Dorado Weather






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