Routine Fire Wx Fcst (With/Without 6-10 Day Outlook)
Issued by NWS Flagstaff, AZ
Issued by NWS Flagstaff, AZ
265
FNUS55 KFGZ 181048
FWFFGZ
Fire Weather Planning Forecast for northern Arizona
National Weather Service Flagstaff AZ
348 AM MST Fri Sep 18 2026
+++ Thunderstorms imply strong gusty and erratic winds +++
+++ 20-foot wind forecast of `light winds` indicates mainly
terrain driven winds +++
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
.DISCUSSION...Friday and Saturday...Scattered showers and
thunderstorms continue for Friday, mainly near the New Mexico
border. Much drier air moves in from west to east on Saturday.
Expect warm daytime high temperatures, overnight low temperatures
will plummet as dew points fall into the lower 20s. Southwest winds
10 to 20 mph in daytime, especially over higher terrain.
Sunday through Tuesday...Dry Sunday and Monday, with chances for
showers an thunderstorms returning for Tuesday. Winds will be
generally light, but trending southwesterly 5 to 15 mph over the
higher terrain in the afternoon. Warm daytime temperatures will
continue, with cold overnight lows.
AZZ115-190115-
Western Mogollon Rim-
Including the cities of Flagstaff, Williams, and Munds Park
348 AM MST Fri Sep 18 2026
.TODAY...
Sky/weather.........Mostly sunny.
Max temperature.....71-81.
24 hr trend......Little change.
Min humidity........28-38 percent.
24 hr trend......18 percent drier.
20-foot winds.......South winds 10 to 15 mph.
Free winds..........Southwest 15 to 25 mph.
PoP.................0 percent.
Chance lightning....0 percent.
Mixing height.......2700 ft AGL increasing to 7800 ft AGL in the
afternoon.
Transport winds.....South 10 to 15 knots.
Max Ventilation.....Excellent.
.TONIGHT...
Sky/weather.........Mostly clear.
Min temperature.....38-48.
24 hr trend......Little change.
Max humidity........80-100 percent.
24 hr trend......13 percent drier.
20-foot winds.......Southwest winds around 10 mph in the evening
becoming light.
Free winds..........Southwest 10 to 20 mph.
PoP.................0 percent.
Chance lightning....0 percent.
.SATURDAY...
Sky/weather.........Mostly sunny.
Max temperature.....71-81.
24 hr trend......Little change.
Min humidity........17-22 percent.
24 hr trend......15 percent drier.
20-foot winds.......Light winds becoming southwest around 10 mph
with gusts up to 20 mph in the afternoon.
Free winds..........Southwest 10 to 20 mph.
PoP.................0 percent.
Chance lightning....0 percent.
Mixing height.......3200 ft AGL increasing to 8600 ft AGL in the
afternoon.
Transport winds.....South around 5 knots increasing to southwest
around 15 knots in the afternoon.
Max Ventilation.....Excellent.
.FORECAST DAYS 3 THROUGH 5...
.SUNDAY...Mostly clear. Highs 71 to 81. Light winds becoming
southwest around 10 mph in the afternoon.
.MONDAY...Partly cloudy. Highs 70 to 80. Light winds becoming
south around 10 mph with gusts up to 20 mph in the afternoon.
.TUESDAY...Mostly cloudy. Chance of showers and thunderstorms.
Highs 68 to 78. Light winds becoming south 10 to 15 mph with
gusts up to 20 mph.
$$
AZZ106-190115-
Grand Canyon Country-
Including the cities of Grand Canyon Village, Tusayan, Supai,
and Grand Canyon North Rim
348 AM MST Fri Sep 18 2026
.TODAY...
Sky/weather.........Mostly sunny.
Max temperature.....85-95 at the River...71-81 at the Rim.
24 hr trend......Little change.
Min humidity........22-27 percent at the River...27-37 percent at
the Rim.
24 hr trend......13 percent drier.
20-foot winds.......South winds 10 to 15 mph.
Free winds..........Southwest 15 to 25 mph.
PoP.................0 percent.
Chance lightning....0 percent.
Mixing height.......2900 ft AGL increasing to 9100 ft AGL in the
afternoon.
Transport winds.....Southwest 10 to 15 knots.
Max Ventilation.....Excellent.
.TONIGHT...
Sky/weather.........Mostly clear.
Min temperature.....60-68 at the River...48-58 at the Rim.
24 hr trend......Little change.
Max humidity........38-58 percent at the River...51-71 percent at
the Rim.
24 hr trend......20 percent drier.
20-foot winds.......Southwest winds around 10 mph in the evening
becoming light.
Free winds..........Southwest 10 to 20 mph.
PoP.................0 percent.
Chance lightning....10 percent.
.SATURDAY...
Sky/weather.........Mostly sunny.
Max temperature.....84-94 at the River...70-80 at the Rim.
24 hr trend......Little change.
Min humidity........16 percent at the River...18-23 percent at the
Rim.
24 hr trend......10 percent drier.
20-foot winds.......Light winds becoming west around 10 mph in the
afternoon.
Free winds..........Southwest 10 to 20 mph.
PoP.................0 percent.
Chance lightning....0 percent.
Mixing height.......2700 ft AGL increasing to 9100 ft AGL in the
afternoon.
Transport winds.....Southwest around 5 knots increasing to around
15 knots in the afternoon.
Max Ventilation.....Excellent.
.FORECAST DAYS 3 THROUGH 5...
.SUNDAY...Mostly clear. Highs 82 to 92. Light winds becoming
southwest around 10 mph in the afternoon.
.MONDAY...Partly cloudy. Slight chance of showers and
thunderstorms. Highs 82 to 92. Light winds becoming south around
10 mph in the afternoon.
.TUESDAY...Mostly cloudy. Chance of showers and slight chance of
thunderstorms. Highs 78 to 88. Light winds.
$$
AZZ108-190115-
Yavapai County Mountains-
Including the cities of Prescott, Seligman, Ash Fork,
and Crown King
348 AM MST Fri Sep 18 2026
.TODAY...
Sky/weather.........Mostly sunny.
Max temperature.....Around 80 below 5000 feet...around 76 above
5000 feet.
24 hr trend......Little change.
Min humidity........25-35 percent.
24 hr trend......19 percent drier.
20-foot winds.......South winds 10 to 15 mph.
Free winds..........South 15 to 25 mph.
PoP.................0 percent.
Chance lightning....0 percent.
Mixing height.......2800 ft AGL increasing to 7000 ft AGL in the
afternoon.
Transport winds.....Southeast around 5 knots increasing to south
around 15 knots in the afternoon.
Max Ventilation.....Excellent.
.TONIGHT...
Sky/weather.........Mostly clear.
Min temperature.....52-62.
24 hr trend......Little change.
Max humidity........60-80 percent.
24 hr trend......24 percent drier.
20-foot winds.......Light winds.
Free winds..........Southwest 15 to 25 mph.
PoP.................0 percent.
Chance lightning....0 percent.
.SATURDAY...
Sky/weather.........Mostly sunny.
Max temperature.....Around 81 below 5000 feet...around 76 above
5000 feet.
24 hr trend......Little change.
Min humidity........13-18 percent.
24 hr trend......12 percent drier.
20-foot winds.......Light winds becoming southwest around 10 mph in
the afternoon.
Free winds..........Southwest 10 to 20 mph.
PoP.................0 percent.
Chance lightning....0 percent.
Mixing height.......3000 ft AGL increasing to 8000 ft AGL in the
afternoon.
Transport winds.....South 5 to 10 knots.
Max Ventilation.....Very good.
.FORECAST DAYS 3 THROUGH 5...
.SUNDAY...Mostly clear. Highs 77 to 85. Light winds becoming
southwest around 10 mph in the afternoon.
.MONDAY...Partly cloudy. Highs 75 to 84. Light winds becoming
south 10 to 15 mph.
.TUESDAY...Mostly clear. Slight chance of showers. Highs 76 to
84. East winds 10 to 15 mph shifting to the south with gusts up
to 20 mph in the afternoon.
$$
AZZ137-190115-
Yavapai County Valleys and Basins-
Including the cities of Cottonwood, Camp Verde, Cordes Junction,
and Bagdad
348 AM MST Fri Sep 18 2026
.TODAY...
Sky/weather.........Mostly sunny.
Max temperature.....85-95.
24 hr trend......6 degrees warmer.
Min humidity........19-29 percent.
24 hr trend......18 percent drier.
20-foot winds.......Southeast winds around 10 mph shifting to the
south in the afternoon. Gusts up to 20 mph.
Free winds..........South 15 to 25 mph.
PoP.................0 percent.
Chance lightning....0 percent.
.TONIGHT...
Sky/weather.........Mostly clear.
Min temperature.....55-65.
24 hr trend......Little change.
Max humidity........55-75 percent.
24 hr trend......20 percent drier.
20-foot winds.......Light winds.
Free winds..........Southwest 15 to 25 mph.
PoP.................0 percent.
Chance lightning....0 percent.
.SATURDAY...
Sky/weather.........Mostly sunny.
Max temperature.....86-96.
24 hr trend......Little change.
Min humidity........11-16 percent.
24 hr trend......10 percent drier.
20-foot winds.......Light winds becoming southwest around 10 mph in
the afternoon.
Free winds..........Southwest 10 to 20 mph.
PoP.................0 percent.
Chance lightning....0 percent.
.FORECAST DAYS 3 THROUGH 5...
.SUNDAY...Mostly clear. Highs 86 to 96. Light winds becoming east
around 10 mph in the morning, then shifting to the south in the
afternoon.
.MONDAY...Partly cloudy. Highs 85 to 95. Light winds becoming
southeast 10 to 15 mph.
.TUESDAY...Mostly clear. Slight chance of showers. Highs 85 to
95. East winds 10 to 15 mph shifting to the south with gusts up
to 20 mph in the afternoon.
$$
AZZ138-190115-
Oak Creek and Sycamore Canyons-
Including the cities of Sedona and Village of Oak Creek
348 AM MST Fri Sep 18 2026
.TODAY...
Sky/weather.........Mostly sunny.
Max temperature.....79-89.
24 hr trend......Little change.
Min humidity........22-32 percent below 5000 feet...26-36 percent
above 5000 feet.
24 hr trend......19 percent drier.
20-foot winds.......Light winds becoming south around 10 mph with
gusts up to 20 mph in the afternoon.
Free winds..........Southwest 15 to 25 mph.
PoP.................0 percent.
Chance lightning....0 percent.
.TONIGHT...
Sky/weather.........Mostly clear.
Min temperature.....56-65 below 5000 feet...51-61 above 5000 feet.
24 hr trend......Little change.
Max humidity........46-66 percent below 5000 feet...56-76 percent
above 5000 feet.
24 hr trend......19 percent drier.
20-foot winds.......Light winds.
Free winds..........Southwest 15 to 25 mph.
PoP.................0 percent.
Chance lightning....0 percent.
.SATURDAY...
Sky/weather.........Mostly sunny.
Max temperature.....79-89.
24 hr trend......Little change.
Min humidity........18-23 percent.
24 hr trend......10 percent drier.
20-foot winds.......Light winds.
Free winds..........Southwest 15 to 25 mph.
PoP.................0 percent.
Chance lightning....0 percent.
.FORECAST DAYS 3 THROUGH 5...
.SUNDAY...Mostly clear. Highs 79 to 89. Northeast winds around
10 mph early in the morning becoming light.
.MONDAY...Mostly cloudy early in the morning then becoming partly
cloudy. Highs 78 to 88. Light winds becoming south around 10 mph
with gusts up to 20 mph in the afternoon.
.TUESDAY...Partly cloudy. Slight chance of showers and
thunderstorms. Highs 78 to 88. Northeast winds around 10 mph
early in the morning becoming light, then becoming south around
10 mph with gusts up to 20 mph in the afternoon.
$$
AZZ105-190115-
Marble and Glen Canyons-
Including the cities of Page and Lees Ferry
348 AM MST Fri Sep 18 2026 /448 AM MDT Fri Sep 18 2026/
.TODAY...
Sky/weather.........Mostly sunny.
Max temperature.....81-91.
24 hr trend......Little change.
Min humidity........23-33 percent.
24 hr trend......15 percent drier.
20-foot winds.......Light winds becoming southwest around 10 mph in
the afternoon.
Free winds..........Southwest 10 to 20 mph.
PoP.................0 percent.
Chance lightning....10 percent.
.TONIGHT...
Sky/weather.........Mostly clear.
Min temperature.....58-66.
24 hr trend......Little change.
Max humidity........46-66 percent.
24 hr trend......15 percent drier.
20-foot winds.......Light winds.
Free winds..........Southwest 15 to 25 mph.
PoP.................10 percent.
Chance lightning....20 percent decreasing to 10 percent after
midnight.
.SATURDAY...
Sky/weather.........Mostly sunny.
Max temperature.....80-90.
24 hr trend......Little change.
Min humidity........14-19 percent.
24 hr trend......8 percent drier.
20-foot winds.......Light winds.
Free winds..........Southwest 10 to 20 mph.
PoP.................0 percent.
Chance lightning....0 percent.
.FORECAST DAYS 3 THROUGH 5...
.SUNDAY...Mostly clear. Highs 80 to 90. Light winds.
.MONDAY...Partly cloudy. Highs 80 to 90. Light winds.
.TUESDAY...Mostly cloudy. Chance of showers and slight chance of
thunderstorms. Highs 75 to 85. Light winds.
$$
AZZ104-190115-
Kaibab Plateau-
Including the cities of Jacob Lake and Fredonia
348 AM MST Fri Sep 18 2026
.TODAY...
Sky/weather.........Mostly sunny.
Max temperature.....74-84 below 7000 feet...67-75 above 7000 feet.
24 hr trend......Little change.
Min humidity........25-35 percent below 7000 feet...32-42 percent
above 7000 feet.
24 hr trend......15 percent drier.
20-foot winds.......Southwest winds 10 to 15 mph.
Free winds..........Southwest 15 to 25 mph.
PoP.................0 percent.
Chance lightning....0 percent.
.TONIGHT...
Sky/weather.........Mostly clear.
Min temperature.....51-58 below 7000 feet...46-52 above 7000 feet.
24 hr trend......Little change.
Max humidity........58-78 percent.
24 hr trend......23 percent drier.
20-foot winds.......Southwest winds around 10 mph in the evening
becoming light.
Free winds..........Southwest 15 to 25 mph.
PoP.................10 percent.
Chance lightning....10 percent decreasing to 0 percent after
midnight.
.SATURDAY...
Sky/weather.........Mostly sunny.
Max temperature.....73-81 below 7000 feet...66-74 above 7000 feet.
24 hr trend......Little change.
Min humidity........15-20 percent below 7000 feet...19-24 percent
above 7000 feet.
24 hr trend......13 percent drier.
20-foot winds.......Light winds becoming west around 10 mph in the
afternoon.
Free winds..........Southwest 10 to 20 mph.
PoP.................0 percent.
Chance lightning....0 percent.
.FORECAST DAYS 3 THROUGH 5...
.SUNDAY...Mostly clear. Highs 72 to 82. Light winds becoming
southwest around 10 mph in the afternoon.
.MONDAY...Partly cloudy. Slight chance of showers and
thunderstorms. Highs 72 to 82. Light winds becoming south around
10 mph in the afternoon.
.TUESDAY...Mostly cloudy. Chance of showers and slight chance of
thunderstorms. Highs 68 to 78. Light winds becoming south around
10 mph in the afternoon.
$$
AZZ107-190115-
Coconino Plateau-
Including the city of Valle
348 AM MST Fri Sep 18 2026 /448 AM MDT Fri Sep 18 2026/
.TODAY...
Sky/weather.........Mostly sunny.
Max temperature.....75-82 on the Plateau...86-96 at the River.
24 hr trend......Little change.
Min humidity........22-32 percent on the Plateau...20-25 percent at
the River.
24 hr trend......17 percent drier.
20-foot winds.......South winds 10 to 15 mph.
Free winds..........Southwest 15 to 25 mph.
PoP.................0 percent.
Chance lightning....0 percent.
.TONIGHT...
Sky/weather.........Mostly clear.
Min temperature.....48-57 on the Plateau...58-68 at the River.
24 hr trend......Little change.
Max humidity........66-86 percent on the Plateau...41-61 percent at
the River.
24 hr trend......24 percent drier.
20-foot winds.......Southwest winds around 10 mph in the evening
becoming light.
Free winds..........Southwest 15 to 25 mph.
PoP.................0 percent.
Chance lightning....0 percent.
.SATURDAY...
Sky/weather.........Mostly sunny.
Max temperature.....75-81 on the Plateau...84-94 at the River.
24 hr trend......Little change.
Min humidity........12-17 percent.
24 hr trend......12 percent drier.
20-foot winds.......Light winds becoming southwest around 10 mph in
the afternoon.
Free winds..........Southwest 10 to 20 mph.
PoP.................0 percent.
Chance lightning....0 percent.
.FORECAST DAYS 3 THROUGH 5...
.SUNDAY...Mostly clear. Highs 75 to 84. Light winds becoming
southwest around 10 mph in the afternoon.
.MONDAY...Partly cloudy. Highs 74 to 82. Light winds becoming
south around 10 mph in the afternoon.
.TUESDAY...Mostly cloudy early in the morning then becoming
partly cloudy. Slight chance of showers and thunderstorms. Highs
72 to 81. Light winds becoming south around 10 mph in the
afternoon.
$$
AZZ109-190115-
Northeast Plateaus and Mesas Hwy 264 Northward-
Including the cities of Keams Canyon and Kaibito
348 AM MST Fri Sep 18 2026
.TODAY...
Sky/weather.........Mostly sunny.
Max temperature.....76-84.
24 hr trend......Little change.
Min humidity........25-35 percent.
24 hr trend......16 percent drier.
20-foot winds.......South winds 10 to 15 mph.
Free winds..........Southwest 15 to 25 mph.
PoP.................0 percent.
Chance lightning....0 percent.
.TONIGHT...
Sky/weather.........Mostly clear.
Min temperature.....53-60.
24 hr trend......Little change.
Max humidity........64-84 percent.
24 hr trend......17 percent drier.
20-foot winds.......South winds around 10 mph in the evening
becoming light.
Free winds..........Southwest 10 to 20 mph.
PoP.................10 percent.
Chance lightning....20 percent decreasing to 10 percent after
midnight.
.SATURDAY...
Sky/weather.........Mostly sunny.
Max temperature.....75-82.
24 hr trend......Little change.
Min humidity........18-23 percent.
24 hr trend......10 percent drier.
20-foot winds.......Light winds becoming southwest around 10 mph in
the afternoon.
Free winds..........Southwest 10 to 20 mph.
PoP.................0 percent.
Chance lightning....0 percent.
.FORECAST DAYS 3 THROUGH 5...
.SUNDAY...Mostly clear. Highs 75 to 82. Light winds.
.MONDAY...Partly cloudy. Highs 75 to 82. Light winds becoming
south around 10 mph in the afternoon.
.TUESDAY...Mostly cloudy early in the morning then becoming
partly cloudy. Chance of showers and slight chance of
thunderstorms. Highs 72 to 79. Light winds becoming southeast
around 10 mph in the morning, then shifting to the southwest in
the afternoon.
$$
AZZ140-190115-
Northeast Plateaus and Mesas South of Hwy 264-
Including the cities of Dilkon and Kykotsmovi
348 AM MST Fri Sep 18 2026 /448 AM MDT Fri Sep 18 2026/
.TODAY...
Sky/weather.........Partly cloudy. Slight chance of showers and
thunderstorms in the afternoon.
Max temperature.....73-83.
24 hr trend......Little change.
Min humidity........31-41 percent.
24 hr trend......14 percent drier.
20-foot winds.......South winds 10 to 15 mph.
Free winds..........Southwest 15 to 25 mph.
PoP.................20 percent.
Chance lightning....0 percent increasing to 20 percent in the
afternoon.
.TONIGHT...
Sky/weather.........Mostly clear.
Min temperature.....Around 57.
24 hr trend......Little change.
Max humidity........67-87 percent.
24 hr trend......14 percent drier.
20-foot winds.......South winds around 10 mph in the evening
becoming light.
Free winds..........Southwest 10 to 20 mph.
PoP.................0 percent.
Chance lightning....10 percent.
.SATURDAY...
Sky/weather.........Mostly sunny.
Max temperature.....73-82.
24 hr trend......Little change.
Min humidity........20-30 percent.
24 hr trend......16 percent drier.
20-foot winds.......Light winds becoming southwest around 10 mph in
the afternoon.
Free winds..........Southwest 10 to 20 mph.
PoP.................0 percent.
Chance lightning....0 percent.
.FORECAST DAYS 3 THROUGH 5...
.SUNDAY...Mostly clear. Highs 73 to 81. Light winds.
.MONDAY...Mostly cloudy early in the morning then becoming partly
cloudy. Highs 73 to 82. Southeast winds 10 to 15 mph shifting to
the south in the afternoon.
.TUESDAY...Partly cloudy early in the morning then becoming
mostly cloudy. Chance of showers and slight chance of
thunderstorms. Highs 72 to 80. Southeast winds 10 to 15 mph
shifting to the south in the afternoon.
$$
AZZ110-190115-
Chinle Valley-
Including the cities of Canyon De Chelly, Chinle, and Kayenta
448 AM MDT Fri Sep 18 2026
.TODAY...
Sky/weather.........Partly cloudy. Slight chance of showers and
thunderstorms through the day.
Max temperature.....75-82.
24 hr trend......Little change.
Min humidity........31-41 percent.
24 hr trend......15 percent drier.
20-foot winds.......South winds 10 to 15 mph.
Free winds..........Southwest 15 to 25 mph.
PoP.................20 percent.
Chance lightning....10 percent increasing to 20 percent in the
afternoon.
.TONIGHT...
Sky/weather.........Partly cloudy. Slight chance of thunderstorms
in the evening. Slight chance of rain showers
through the night.
Min temperature.....53-60.
24 hr trend......Little change.
Max humidity........72-92 percent.
24 hr trend......13 percent drier.
20-foot winds.......South winds 10 to 15 mph.
Free winds..........Southwest 10 to 20 mph.
PoP.................20 percent.
Chance lightning....30 percent decreasing to 20 percent after
midnight.
.SATURDAY...
Sky/weather.........Mostly sunny.
Max temperature.....74-80.
24 hr trend......Little change.
Min humidity........22-32 percent.
24 hr trend......9 percent drier.
20-foot winds.......Light winds becoming southwest around 10 mph in
the afternoon.
Free winds..........Southwest 10 to 20 mph.
PoP.................0 percent.
Chance lightning....0 percent.
.FORECAST DAYS 3 THROUGH 5...
.SUNDAY...Mostly clear. Highs 73 to 79. Light winds.
.MONDAY...Partly cloudy. Highs 74 to 80. Light winds becoming
south around 10 mph in the afternoon.
.TUESDAY...Mostly cloudy. Chance of showers and thunderstorms.
Highs 72 to 78. Light winds becoming south around 10 mph in the
afternoon.
$$
AZZ111-190115-
Chuska Mountains and Defiance Plateau-
Including the cities of Window Rock and Ganado
348 AM MST Fri Sep 18 2026 /448 AM MDT Fri Sep 18 2026/
.TODAY...
Sky/weather.........Mostly cloudy. Slight chance of showers and
thunderstorms in the morning, then chance of
showers and thunderstorms in the afternoon.
Max temperature.....67-77.
24 hr trend......Little change.
Min humidity........38-48 percent.
24 hr trend......16 percent drier.
20-foot winds.......South winds 10 to 15 mph.
Free winds..........Southwest 15 to 25 mph.
PoP.................30 percent.
Chance lightning....10 percent increasing to 30 percent in the
afternoon.
Mixing height.......2900 ft AGL increasing to 9400 ft AGL in the
afternoon.
Transport winds.....Southwest 10 to 15 knots.
Max Ventilation.....Excellent.
.TONIGHT...
Sky/weather.........Partly cloudy. Slight chance of thunderstorms
in the evening. Slight chance of rain showers
through the night.
Min temperature.....49-57.
24 hr trend......Little change.
Max humidity........71-91 percent.
24 hr trend......15 percent drier.
20-foot winds.......Southeast winds around 10 mph in the evening
becoming light.
Free winds..........Southwest 15 to 25 mph.
PoP.................20 percent.
Chance lightning....30 percent decreasing to 20 percent after
midnight.
.SATURDAY...
Sky/weather.........Mostly sunny.
Max temperature.....67-77.
24 hr trend......Little change.
Min humidity........22-32 percent.
24 hr trend......16 percent drier.
20-foot winds.......Southwest winds 10 to 15 mph. Gusts up to 20
mph in the afternoon.
Free winds..........Southwest 15 to 25 mph.
PoP.................0 percent.
Chance lightning....0 percent.
Mixing height.......3600 ft AGL increasing to 9700 ft AGL in the
afternoon.
Transport winds.....Southwest 10 to 15 knots.
Max Ventilation.....Excellent.
.FORECAST DAYS 3 THROUGH 5...
.SUNDAY...Mostly clear. Highs 66 to 76. Light winds becoming west
around 10 mph in the afternoon.
.MONDAY...Mostly cloudy early in the morning then becoming partly
cloudy. Highs 67 to 77. Light winds becoming southwest around
10 mph in the afternoon.
.TUESDAY...Partly cloudy early in the morning then becoming
mostly cloudy. Showers likely and chance of thunderstorms. Highs
65 to 75. Light winds becoming south 10 to 15 mph.
$$
AZZ139-190115-
Black Mesa Area-
348 AM MST Fri Sep 18 2026 /448 AM MDT Fri Sep 18 2026/
.TODAY...
Sky/weather.........Partly cloudy.
Max temperature.....71-78.
24 hr trend......Little change.
Min humidity........31-41 percent.
24 hr trend......17 percent drier.
20-foot winds.......Southwest winds 10 to 15 mph.
Free winds..........Southwest 15 to 25 mph.
PoP.................0 percent.
Chance lightning....10 percent.
.TONIGHT...
Sky/weather.........Mostly clear. Slight chance of showers and
thunderstorms in the evening.
Min temperature.....52-57.
24 hr trend......Little change.
Max humidity........63-83 percent.
24 hr trend......17 percent drier.
20-foot winds.......South winds 10 to 15 mph.
Free winds..........Southwest 15 to 25 mph.
PoP.................10 percent.
Chance lightning....20 percent decreasing to 10 percent after
midnight.
.SATURDAY...
Sky/weather.........Mostly sunny.
Max temperature.....70-76.
24 hr trend......Little change.
Min humidity........21-26 percent.
24 hr trend......13 percent drier.
20-foot winds.......Southwest winds 10 to 15 mph.
Free winds..........Southwest 10 to 20 mph.
PoP.................0 percent.
Chance lightning....0 percent.
.FORECAST DAYS 3 THROUGH 5...
.SUNDAY...Mostly clear. Highs 69 to 76. Light winds becoming west
around 10 mph in the afternoon.
.MONDAY...Partly cloudy. Highs 70 to 77. Light winds becoming
south 10 to 15 mph.
.TUESDAY...Mostly cloudy. Chance of showers and thunderstorms.
Highs 67 to 74. Light winds becoming south 10 to 15 mph.
$$
AZZ112-190115-
Little Colorado River Valley in Coconino County-
Including the cities of Wupatki National Monument and Tuba City
348 AM MST Fri Sep 18 2026 /448 AM MDT Fri Sep 18 2026/
.TODAY...
Sky/weather.........Mostly sunny.
Max temperature.....79-87.
24 hr trend......Little change.
Min humidity........26-36 percent.
24 hr trend......18 percent drier.
20-foot winds.......Light winds becoming southwest around 10 mph
with gusts up to 20 mph in the afternoon.
Free winds..........Southwest 15 to 25 mph.
PoP.................0 percent.
Chance lightning....0 percent.
.TONIGHT...
Sky/weather.........Mostly clear.
Min temperature.....52-60.
24 hr trend......Little change.
Max humidity........63-83 percent.
24 hr trend......17 percent drier.
20-foot winds.......Southwest winds around 10 mph in the evening
becoming light.
Free winds..........Southwest 10 to 20 mph.
PoP.................0 percent.
Chance lightning....10 percent decreasing to 0 percent after
midnight.
.SATURDAY...
Sky/weather.........Mostly sunny.
Max temperature.....79-86.
24 hr trend......Little change.
Min humidity........18-23 percent.
24 hr trend......11 percent drier.
20-foot winds.......Light winds becoming southwest around 10 mph in
the afternoon.
Free winds..........Southwest 10 to 20 mph.
PoP.................0 percent.
Chance lightning....0 percent.
.FORECAST DAYS 3 THROUGH 5...
.SUNDAY...Mostly clear. Highs 79 to 85. Light winds.
.MONDAY...Partly cloudy. Highs 79 to 85. Light winds becoming
south around 10 mph in the afternoon.
.TUESDAY...Partly cloudy early in the morning then becoming
mostly cloudy. Chance of showers and slight chance of
thunderstorms. Highs 77 to 82. Light winds becoming southeast
around 10 mph in the afternoon.
$$
AZZ113-190115-
Little Colorado River Valley in Navajo County-
Including the cities of Winslow, Holbrook, and Snowflake
348 AM MST Fri Sep 18 2026 /448 AM MDT Fri Sep 18 2026/
.TODAY...
Sky/weather.........Mostly sunny.
Max temperature.....79-84.
24 hr trend......Little change.
Min humidity........32-42 percent.
24 hr trend......16 percent drier.
20-foot winds.......South winds 10 to 15 mph. Gusts up to 20 mph in
the afternoon.
Free winds..........Southwest 15 to 25 mph.
PoP.................10 percent.
Chance lightning....10 percent.
Mixing height.......2900 ft AGL increasing to 9400 ft AGL in the
afternoon.
Transport winds.....South around 5 knots increasing to southwest
around 15 knots in the afternoon.
Max Ventilation.....Excellent.
.TONIGHT...
Sky/weather.........Mostly clear.
Min temperature.....52-58.
24 hr trend......Little change.
Max humidity........74-94 percent.
24 hr trend......12 percent drier.
20-foot winds.......South winds around 10 mph in the evening
becoming light.
Free winds..........Southwest 15 to 25 mph.
PoP.................0 percent.
Chance lightning....0 percent.
.SATURDAY...
Sky/weather.........Mostly sunny.
Max temperature.....78-83.
24 hr trend......Little change.
Min humidity........21-31 percent.
24 hr trend......12 percent drier.
20-foot winds.......Light winds becoming southwest around 10 mph in
the afternoon.
Free winds..........Southwest 15 to 25 mph.
PoP.................0 percent.
Chance lightning....0 percent.
Mixing height.......3200 ft AGL increasing to 10500 ft AGL in the
afternoon.
Transport winds.....Southwest around 5 knots increasing to around
15 knots in the afternoon.
Max Ventilation.....Excellent.
.FORECAST DAYS 3 THROUGH 5...
.SUNDAY...Mostly clear. Highs around 80. Light winds becoming
west around 10 mph in the afternoon.
.MONDAY...Mostly cloudy early in the morning then becoming partly
cloudy. Highs 78 to 83. Light winds becoming south 10 to 15 mph.
.TUESDAY...Partly cloudy early in the morning then becoming
mostly cloudy. Chance of showers and thunderstorms. Highs in the
upper 70s. Light winds becoming southeast 10 to 15 mph with gusts
up to 20 mph.
$$
AZZ114-190115-
Little Colorado River Valley in Apache County-
Including the cities of St. Johns and Springerville
348 AM MST Fri Sep 18 2026 /448 AM MDT Fri Sep 18 2026/
.TODAY...
Sky/weather.........Mostly cloudy. Chance of showers and
thunderstorms in the afternoon.
Max temperature.....Around 77 below 7000 feet...around 74 above
7000 feet.
24 hr trend......Little change.
Min humidity........35-45 percent.
24 hr trend......9 percent drier.
20-foot winds.......South winds around 10 mph shifting to the
southwest in the afternoon.
Free winds..........Southwest 10 to 20 mph.
PoP.................40 percent.
Chance lightning....10 percent increasing to 40 percent in the
afternoon.
.TONIGHT...
Sky/weather.........Mostly clear.
Min temperature.....Around 55 below 7000 feet...around 52 above
7000 feet.
24 hr trend......Little change.
Max humidity........75-95 percent.
24 hr trend......8 percent drier.
20-foot winds.......Southeast winds 10 to 15 mph.
Free winds..........Southwest 15 to 25 mph.
PoP.................10 percent.
Chance lightning....20 percent decreasing to 10 percent after
midnight.
.SATURDAY...
Sky/weather.........Mostly sunny. Slight chance of showers and
thunderstorms in the afternoon.
Max temperature.....Around 77 below 7000 feet...around 74 above
7000 feet.
24 hr trend......Little change.
Min humidity........27-37 percent.
24 hr trend......9 percent drier.
20-foot winds.......South winds around 10 mph shifting to the west
in the afternoon.
Free winds..........Southwest 15 to 25 mph.
PoP.................10 percent.
Chance lightning....0 percent increasing to 20 percent in the
afternoon.
.FORECAST DAYS 3 THROUGH 5...
.SUNDAY...Mostly clear. Highs 74 to 81. Light winds becoming west
around 10 mph in the afternoon.
.MONDAY...Mostly cloudy. Highs 74 to 82. Light winds becoming
south around 10 mph in the morning, then becoming light in the
afternoon.
.TUESDAY...Partly cloudy early in the morning then becoming
mostly cloudy. Chance of showers and thunderstorms. Highs 72 to
80. Southeast winds 10 to 15 mph.
$$
AZZ116-190115-
Eastern Mogollon Rim-
Including the cities of Heber, Happy Jack, and Forest Lakes
348 AM MST Fri Sep 18 2026
.TODAY...
Sky/weather.........Mostly sunny.
Max temperature.....76-84 below 5000 feet...71-80 above 5000 feet.
24 hr trend......Little change.
Min humidity........35-45 percent.
24 hr trend......18 percent drier.
20-foot winds.......South winds 10 to 15 mph with gusts up to 20
mph.
Free winds..........Southwest 15 to 25 mph.
PoP.................0 percent.
Chance lightning....0 percent.
.TONIGHT...
Sky/weather.........Mostly clear.
Min temperature.....55-61 below 5000 feet...51-57 above 5000 feet.
24 hr trend......Little change.
Max humidity........75-95 percent.
24 hr trend......11 percent drier.
20-foot winds.......Light winds.
Free winds..........Southwest 20 to 30 mph.
PoP.................0 percent.
Chance lightning....0 percent.
.SATURDAY...
Sky/weather.........Mostly sunny.
Max temperature.....78-84 below 5000 feet...73-81 above 5000 feet.
24 hr trend......Little change.
Min humidity........20-30 percent.
24 hr trend......15 percent drier.
20-foot winds.......Light winds becoming southwest around 10 mph
with gusts up to 20 mph in the afternoon.
Free winds..........Southwest 15 to 25 mph.
PoP.................0 percent.
Chance lightning....0 percent.
.FORECAST DAYS 3 THROUGH 5...
.SUNDAY...Mostly clear. Highs 72 to 82. Light winds becoming
southwest around 10 mph in the afternoon.
.MONDAY...Mostly cloudy early in the morning then becoming partly
cloudy. Highs 71 to 81. Light winds becoming southwest around
10 mph with gusts up to 20 mph in the afternoon.
.TUESDAY...Partly cloudy early in the morning then becoming
mostly cloudy. Chance of showers and thunderstorms. Highs 70 to
80. Light winds becoming southwest around 10 mph with gusts up to
20 mph in the afternoon.
$$
AZZ117-190115-
White Mountains-
Including the cities of Show Low, Greer, and Pinetop
348 AM MST Fri Sep 18 2026
.TODAY...
Sky/weather.........Partly cloudy. Slight chance of showers and
thunderstorms in the morning, then chance of
showers and thunderstorms in the afternoon.
Max temperature.....74-82 below 7000 feet...64-74 above 7000 feet.
24 hr trend......Little change.
Min humidity........33-43 percent below 7000 feet...43-53 percent
above 7000 feet.
24 hr trend......9 percent drier.
20-foot winds.......South winds 10 to 15 mph with gusts up to 20
mph.
Free winds..........South 10 to 20 mph.
PoP.................30 percent.
Chance lightning....10 percent increasing to 30 percent in the
afternoon.
Mixing height.......2600 ft AGL increasing to 7500 ft AGL in the
afternoon.
Transport winds.....South 10 to 15 knots.
Max Ventilation.....Excellent.
.TONIGHT...
Sky/weather.........Mostly clear.
Min temperature.....52-58 below 7000 feet...44-53 above 7000 feet.
24 hr trend......Little change.
Max humidity........74-94 percent below 7000 feet...80-100 percent
above 7000 feet.
24 hr trend......Little change.
20-foot winds.......Light winds.
Free winds..........Southwest 15 to 25 mph.
PoP.................0 percent.
Chance lightning....10 percent.
.SATURDAY...
Sky/weather.........Mostly sunny.
Max temperature.....74-82 below 7000 feet...65-75 above 7000 feet.
24 hr trend......Little change.
Min humidity........23-33 percent below 7000 feet...31-41 percent
above 7000 feet.
24 hr trend......14 percent drier.
20-foot winds.......Southwest winds 10 to 15 mph with gusts up to
20 mph.
Free winds..........Southwest 10 to 20 mph.
PoP.................0 percent.
Chance lightning....0 percent.
Mixing height.......3400 ft AGL increasing to 8700 ft AGL in the
afternoon.
Transport winds.....South around 5 knots increasing to southwest
around 15 knots in the afternoon.
Max Ventilation.....Excellent.
.FORECAST DAYS 3 THROUGH 5...
.SUNDAY...Mostly clear. Highs 71 to 81. Light winds becoming west
around 10 mph in the afternoon.
.MONDAY...Mostly cloudy. Highs 71 to 81. Light winds becoming
southwest around 10 mph in the afternoon.
.TUESDAY...Partly cloudy early in the morning then becoming
mostly cloudy. Chance of showers and thunderstorms. Highs 69 to
79. South winds 10 to 15 mph. Gusts up to 20 mph.
$$
AZZ118-190115-
Northern Gila County-
Including the cities of Payson, Strawberry, and Young
348 AM MST Fri Sep 18 2026
.TODAY...
Sky/weather.........Mostly sunny.
Max temperature.....81-91 below 5000 feet...76-84 above 5000 feet.
24 hr trend......Little change.
Min humidity........30-40 percent below 5000 feet...33-43 percent
above 5000 feet.
24 hr trend......15 percent drier.
20-foot winds.......Southeast winds around 10 mph shifting to the
southwest in the afternoon.
Free winds..........Southwest 15 to 25 mph.
PoP.................0 percent.
Chance lightning....0 percent.
.TONIGHT...
Sky/weather.........Mostly clear.
Min temperature.....59-68 below 5000 feet...53-62 above 5000 feet.
24 hr trend......Little change.
Max humidity........60-80 percent below 5000 feet...75-95 percent
above 5000 feet.
24 hr trend......11 percent drier.
20-foot winds.......Light winds.
Free winds..........Southwest 15 to 25 mph.
PoP.................0 percent.
Chance lightning....0 percent.
.SATURDAY...
Sky/weather.........Mostly sunny.
Max temperature.....82-92 below 5000 feet...76-85 above 5000 feet.
24 hr trend......Little change.
Min humidity........18-28 percent below 5000 feet...21-31 percent
above 5000 feet.
24 hr trend......12 percent drier.
20-foot winds.......Light winds becoming southwest around 10 mph in
the afternoon.
Free winds..........Southwest 15 to 25 mph.
PoP.................0 percent.
Chance lightning....0 percent.
.FORECAST DAYS 3 THROUGH 5...
.SUNDAY...Mostly clear. Highs 81 to 91. Light winds becoming
southwest around 10 mph in the afternoon.
.MONDAY...Mostly cloudy early in the morning then becoming partly
cloudy. Highs 80 to 90. Light winds becoming south around 10 mph
in the afternoon.
.TUESDAY...Partly cloudy. Slight chance of showers and
thunderstorms. Highs 81 to 91. Light winds becoming southeast
around 10 mph in the morning, then shifting to the southwest in
the afternoon.
$$
.6 TO 10 DAY OUTLOOK FOR (SEP 23 - 27 2026)...Above normal
temperatures and above normal precipitation.
=
$$
VENTILATION...Transport wind and mixing height are based
on the following points.
ZONE 115...Williams.......6750 FT MSL.
ZONE 106...Tusayan........6606 FT MSL.
ZONE 108...Prescott.......5052 FT MSL.
ZONE 111...Window Rock....6739 FT MSL.
ZONE 113...Winslow........4883 FT MSL.
ZONE 117...Whiteriver.....5225 FT MSL.
Ventilation categories are determined by criteria
established by each state.
$$