Flagstaff, Arizona 7 Day Weather Forecast

Wx Forecast - Wx Discussion - Wx Aviation

506
FXUS65 KFGZ 152254
AFDFGZ

Area Forecast Discussion
National Weather Service Flagstaff AZ
354 PM MST Sun Mar 15 2026

.SYNOPSIS...For today, steady northwest winds and cooler
temperatures than yesterday north of the Mogollon Rim. Similar
temperatures and lighter winds tomorrow. By Tuesday onward,
unprecedented heat takes over with temperatures more typical of
summer. Take the appropriate precautions if you are planning on
any outdoor activity through the week.

&&

.DISCUSSION...A departing shortwave trough coupled with a strong
east Pacific ridge is reinforcing breezy northwesterly winds
across northern AZ today. Daytime temperatures are 5-15 degrees
cooler than yesterday for sites north of the Mogollon Rim
following a dry cold front that clipped far northeastern AZ. For
tomorrow, expect relatively minimal temperature change from today
with lighter north to northwest winds as the gradient aloft
relaxes slightly.

Starting Tuesday, we enter a period of light winds, mostly clear
skies, and record breaking heat as the anomalous ridge begins to
propagate eastward. Several daily and possibly monthly temperature
records will be broken Tuesday, but the warming doesn`t stop there.
Daytime highs are forecast to reach 20-30 degrees above normal as
the high pressure centers overhead by the end of the week. These are
temperatures that would be more typical of June. Do not be caught
off guard by the unseasonable heat if you are planning on any
outdoor activity over the week.

There is some indication that the ridge will weaken early next
week and temperatures will cool some, but still no strong signal
for precipitation at this time.

&&

.AVIATION...Monday 16/00Z through Tuesday 17/00Z...VFR conditions.
Winds NW-NE 5-10 kts, increasing to 5-15 kts with gusts 20-25 kts
after 18Z. Locally gusty NE winds up to 25 kts downwind of terrain
features 03-15Z.

OUTLOOK...Tuesday 17/00Z through Thursday 19/00Z...VFR conditions
with NW-NE winds 5-10 kts each day.

&&

.FIRE WEATHER...Monday and Tuesday...Dry, warm, and breezy weather
continues. North to northeast winds 10-20 mph on Monday, decreasing
to 5-15 mph on Tuesday. Minimum RH 10-20% each day.

Wednesday through Friday...Very dry conditions with daytime high
temperatures 20 to 30 degrees above normal. Temperatures will likely
set daily and all-time (for March) records during this period. North
to northeast winds 5-15 mph on Wednesday, becoming variable 5-10 mph
for Thursday and Friday. Minimum RH 5-10% each day.

&&

.FGZ WATCHES/WARNINGS/ADVISORIES...None.

&&

$$

PUBLIC...Lewandowski
AVIATION...Humphreys
FIRE WEATHER...Meola

For Northern Arizona weather information visit
weather.gov/flagstaff