FNUS55 KTWC 091112 FWFTWC Fire Weather Planning Forecast for Southeast Arizona National Weather Service Tucson AZ 412 AM MST Thu Jul 9 2026 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 20-FOOT WIND FORECAST OF 'LIGHT WINDS' INDICATES MAINLY TERRAIN DRIVEN WINDS +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ .DISCUSSION...Above normal high temperatures (4-7 degrees) today, with highs lowering to around normal over the upcoming weekend. Min RH values in the lower elevations in the 13-20 percent range through Friday, increasing 5-10 percent by late in the weekend into early next week. Outside of any thunderstorm outflow winds, 20- foot winds will generally be less than 15 mph into early next week. There will be a daily chance of showers and thunderstorms mainly during the afternoon/evening hours through Friday. There is the potential for increasing thunderstorm chances and coverage this weekend into early next week. AZZ150-092300- Arizona Fire Weather Zone 150 Sonoran FDRA-Most of Pima County-South Central Pinal County- Tohono O'odham Nation-Tucson Metropolitan area-TDC- 412 AM MST Thu Jul 9 2026 .TODAY... * Sky/Weather..............Mostly sunny (10-20 pct). * Chance of Precip.........0 pct. * Chance of Thunder........0 pct. * Max Temperature..........102 to 112 degs. 24 hr Trend...........Little change. * Min Humidity.............14 to 24 pct. 24 hr Trend...........Little change. * Wind (20 ft/10-min avg)..South around 10 mph shifting to the west in the afternoon. * 10000 ft MSL Wind........Northwest 5 to 10 mph. * Mixing height............12591 ft AGL. * Transport winds..........Southwest 11 knots shifting to the west 12 knots in the afternoon. * Ventilation Category.....Excellent (151092 knot-ft). .TONIGHT... * Sky/Weather..............Partly cloudy (35-45 pct). * Chance of Precip.........0 pct. * Chance of Thunder........0 pct. * Min Temperature..........75 to 85 degs. 24 hr Trend...........Little change. * Max Humidity.............46 to 56 pct. 24 hr Trend...........Up 3 to 7 pct. * Wind (20 ft/10-min avg)..South 10 to 15 mph. * 10000 ft MSL Wind........Northwest 10 to 15 mph. .FRIDAY... * Sky/Weather..............Partly cloudy (25-35 pct) then becoming mostly sunny (20-30 pct). * Chance of Precip.........0 pct. * Chance of Thunder........0 pct. * Max Temperature..........100 to 110 degs. 24 hr Trend...........Down 1 to 4 degs. * Min Humidity.............18 to 28 pct. 24 hr Trend...........Up 1 to 4 pct. * Wind (20 ft/10-min avg)..Southwest 10 to 15 mph. * 10000 ft MSL Wind........Northwest 5 to 10 mph. * Mixing height............10685 ft AGL. * Transport winds..........Southwest 13 to 17 knots. * Ventilation Category.....Excellent (181645 knot-ft). .Forecast days 3 through 7...... Winds in Days 3 through 5 are surface 20 ft/10-min avg .SATURDAY...Partly cloudy. Chance of showers and slight chance of thunderstorms. Lows 74 to 84. Highs 97 to 107. Southwest wind around 15 mph. Minimum Humidity 21 to 31 pct. .SUNDAY...Mostly cloudy. Chance of showers and thunderstorms. Lows 73 to 83. Highs 97 to 107. Light winds. Minimum Humidity 22 to 32 pct. .MONDAY...Mostly cloudy. Chance of showers and thunderstorms. Lows 72 to 82. Highs 95 to 105. Light winds. Minimum Humidity 25 to 35 pct. .TUESDAY...Partly cloudy. Slight chance of showers and thunderstorms. Lows 72 to 82. Highs 97 to 107. .WEDNESDAY...Partly cloudy. Slight chance of showers and thunderstorms. Lows 73 to 83. Highs 97 to 107. NOTE TO USERS - ZONE 150 VENTILATION CATEGORY...MIXING HEIGHT AND TRANSPORT WINDS ARE BASED ON THE TUCSON INTERNATIONAL AIRPORT LOCATION (2550 MSL) $$ AZZ151-092300- Arizona Fire Weather Zone 151 Western half Desert Grasslands FDRA including elevations up to 5500 feet in Southeast corner of Pinal County- Extreme Eastern Pima County-Western third of Cochise County- Santa Cruz County-TDC- 412 AM MST Thu Jul 9 2026 .TODAY... * Sky/Weather..............Partly cloudy (30-40 pct). Chance of showers and slight chance of thunderstorms. * Chance of Precip.........20 pct. * Chance of Thunder........20 pct. * Max Temperature..........95 to 105 degs. 24 hr Trend...........Down 1 to 4 degs. * Min Humidity.............20 to 30 pct. 24 hr Trend...........Little change. * Wind (20 ft/10-min avg)..Southwest around 10 mph shifting to the northwest in the afternoon. * 10000 ft MSL Wind........North 10 to 15 mph. * Mixing height............11305 ft AGL. * Transport winds..........Northwest 8 to 13 knots. * Ventilation Category.....Excellent (146965 knot-ft). .TONIGHT... * Sky/Weather..............Partly cloudy (45-55 pct). Chance of showers and thunderstorms. * Chance of Precip.........50 pct. * Chance of Thunder........50 pct. * Min Temperature..........67 to 77 degs. 24 hr Trend...........Down 1 to 4 degs. * Max Humidity.............62 to 72 pct. 24 hr Trend...........Up 5 to 9 pct. * Wind (20 ft/10-min avg)..Southwest 10 to 15 mph. * 10000 ft MSL Wind........North 15 to 20 mph. .FRIDAY... * Sky/Weather..............Partly cloudy (30-40 pct). * Chance of Precip.........10 pct. * Chance of Thunder........0 pct. * Max Temperature..........93 to 103 degs. 24 hr Trend...........Down 1 deg. * Min Humidity.............23 to 33 pct. 24 hr Trend...........Up 1 to 4 pct. * Wind (20 ft/10-min avg)..West 10 to 15 mph. * 10000 ft MSL Wind........North 5 to 10 mph. * Mixing height............8349 ft AGL. * Transport winds..........West 11 to 12 knots. * Ventilation Category.....Excellent (100188 knot-ft). .Forecast days 3 through 7...... Winds in Days 3 through 5 are surface 20 ft/10-min avg .SATURDAY...Partly cloudy. Chance of showers and thunderstorms. Lows 66 to 76. Highs 91 to 101. Light winds. Minimum Humidity 26 to 36 pct. .SUNDAY...Showers likely and chance of thunderstorms. Lows 65 to 75. Highs 91 to 101. Light winds. Minimum Humidity 25 to 35 pct. .MONDAY...Mostly cloudy. Chance of showers and thunderstorms. Lows 64 to 74. Highs 88 to 98. East wind around 15 mph. Minimum Humidity 29 to 39 pct. .TUESDAY...Partly cloudy. Chance of showers and thunderstorms. Lows 64 to 74. Highs 89 to 99. .WEDNESDAY...Partly cloudy. Slight chance of showers and thunderstorms. Lows 65 to 75. Highs 89 to 99. NOTE TO USERS - ZONE 151 VENTILATION CATEGORY...MIXING HEIGHT AND TRANSPORT WINDS ARE BASED ON THE BUENOS AIRES N.W.R. LOCATION (3500 MSL) $$ AZZ152-092300- Arizona Fire Weather Zone 152 Eastern half Desert Grasslands FDRA including elevations up to 5500 feet in Southwest Graham County and Eastern two thirds of Cochise County-Southern San Carlos Reservation- Southern Greenlee County below 5000 feet-TDC- 412 AM MST Thu Jul 9 2026 .TODAY... * Sky/Weather..............Partly cloudy (30-40 pct). Slight chance of showers and thunderstorms. * Chance of Precip.........10 pct. * Chance of Thunder........10 pct. * Max Temperature..........96 to 106 degs. 24 hr Trend...........Up 1 deg. * Min Humidity.............13 to 23 pct. 24 hr Trend...........Up 1 to 4 pct. * Wind (20 ft/10-min avg)..West 10 to 15 mph. * 10000 ft MSL Wind........North 10 to 15 mph. * Mixing height............11723 ft AGL. * Transport winds..........Northwest 9 to 15 knots. * Ventilation Category.....Excellent (175845 knot-ft). .TONIGHT... * Sky/Weather..............Partly cloudy (45-55 pct). Slight chance of showers and thunderstorms. * Chance of Precip.........30 pct. * Chance of Thunder........20 pct. * Min Temperature..........66 to 76 degs. 24 hr Trend...........Down 2 to 5 degs. * Max Humidity.............60 to 70 pct. 24 hr Trend...........Down 3 to 7 pct. * Wind (20 ft/10-min avg)..West 10 to 15 mph. * 10000 ft MSL Wind........North 20 to 25 mph. .FRIDAY... * Sky/Weather..............Partly cloudy (30-40 pct). Slight chance of showers and thunderstorms. * Chance of Precip.........10 pct. * Chance of Thunder........10 pct. * Max Temperature..........95 to 105 degs. 24 hr Trend...........Down 2 to 5 degs. * Min Humidity.............16 to 26 pct. 24 hr Trend...........Down 1 pct. * Wind (20 ft/10-min avg)..West 10 to 15 mph. * 10000 ft MSL Wind........North 10 to 15 mph. * Mixing height............9474 ft AGL. * Transport winds..........Northwest 13 to 15 knots. * Ventilation Category.....Excellent (142110 knot-ft). .Forecast days 3 through 7...... Winds in Days 3 through 5 are surface 20 ft/10-min avg .SATURDAY...Partly cloudy. Chance of showers and thunderstorms. Lows 66 to 76. Highs 94 to 104. West wind around 15 mph. Minimum Humidity 17 to 27 pct. .SUNDAY...Partly cloudy. Chance of showers and thunderstorms. Lows 65 to 75. Highs 93 to 103. East wind around 15 mph. Minimum Humidity 19 to 29 pct. .MONDAY...Mostly cloudy. Chance of showers and thunderstorms. Lows 63 to 73. Highs 88 to 98. East wind around 20 mph. Minimum Humidity 26 to 36 pct. .TUESDAY...Partly cloudy. Slight chance of showers and thunderstorms. Lows 63 to 73. Highs 89 to 99. .WEDNESDAY...Partly cloudy. Slight chance of showers and thunderstorms. Lows 64 to 74. Highs 89 to 99. NOTE TO USERS - ZONE 152 VENTILATION CATEGORY...MIXING HEIGHT AND TRANSPORT WINDS ARE BASED ON THE CHIRICAHUA N.M. LOCATION (5400 MSL) $$ AZZ153-092300- Arizona Fire Weather Zone 153 Northern Graham County-Northern Greenlee County- White and Gila Mountains-Apache Sitgreaves NF- Southern San Carlos Reservation above 5000 feet-SDC- 412 AM MST Thu Jul 9 2026 .TODAY... * Sky/Weather..............Partly cloudy (30-40 pct). Chance of showers and thunderstorms. * Chance of Precip.........30 pct. * Chance of Thunder........30 pct. * Max Temperature..........86 to 96 degs. 24 hr Trend...........Little change. * Min Humidity.............17 to 27 pct. 24 hr Trend...........Up 1 pct. * Wind (20 ft/10-min avg)..North around 10 mph shifting to the west in the afternoon. * 10000 ft MSL Wind........North around 10 mph shifting to the northwest in the afternoon. * Mixing height............12392 ft AGL. * Transport winds..........North 9 to 14 knots. * Ventilation Category.....Excellent (173488 knot-ft). .TONIGHT... * Sky/Weather..............Partly cloudy (35-45 pct). Slight chance of showers and thunderstorms. * Chance of Precip.........20 pct. * Chance of Thunder........20 pct. * Min Temperature..........60 to 70 degs. 24 hr Trend...........Little change. * Max Humidity.............50 to 60 pct. 24 hr Trend...........Down 3 to 7 pct. * Wind (20 ft/10-min avg)..Northwest around 10 mph. * 10000 ft MSL Wind........Northwest around 15 mph increasing to around 25 mph after midnight. .FRIDAY... * Sky/Weather..............Mostly sunny (10-20 pct) then becoming partly cloudy (30-40 pct). Chance of showers and thunderstorms. * Chance of Precip.........20 pct. * Chance of Thunder........20 pct. * Max Temperature..........86 to 96 degs. 24 hr Trend...........Little change. * Min Humidity.............16 to 26 pct. 24 hr Trend...........Little change. * Wind (20 ft/10-min avg)..Northwest 10 to 15 mph. * 10000 ft MSL Wind........Northwest 10 to 15 mph. * Mixing height............10390 ft AGL. * Transport winds..........Northwest 11 to 17 knots. * Ventilation Category.....Excellent (176630 knot-ft). .Forecast days 3 through 7...... Winds in Days 3 through 5 are surface 20 ft/10-min avg .SATURDAY...Partly cloudy. Slight chance of showers and thunderstorms. Lows 60 to 70. Highs 87 to 97. Light winds. Minimum Humidity 14 to 24 pct. .SUNDAY...Mostly cloudy. Chance of showers and thunderstorms. Lows 60 to 70. Highs 83 to 93. Light winds. Minimum Humidity 21 to 31 pct. .MONDAY...Mostly cloudy. Chance of showers and thunderstorms. Lows 58 to 68. Highs 78 to 88. East wind around 15 mph. Minimum Humidity 30 to 40 pct. .TUESDAY...Partly cloudy. Chance of showers and thunderstorms. Lows 58 to 68. Highs 79 to 89. .WEDNESDAY...Partly cloudy. Chance of showers and thunderstorms. Lows 58 to 68. Highs 79 to 89. NOTE TO USERS - ZONE 153 VENTILATION CATEGORY...MIXING HEIGHT AND TRANSPORT WINDS ARE BASED ON THE POINT OF PINES LOCATION (6040 MSL) $$ AZZ154-092300- Arizona Fire Weather Zone 154 Forest Woodlands FDRA including the Sky Islands of Southeast Arizona above 5500 feet-Coronado NF-TDC- 412 AM MST Thu Jul 9 2026 .TODAY... * Sky/Weather..............Mostly sunny (20-30 pct) then becoming partly cloudy (35-45 pct). Slight chance of showers and thunderstorms. * Chance of Precip.........20 pct. * Chance of Thunder........20 pct. * Max Temperature..........85 to 95 degs. 24 hr Trend...........Little change. * Min Humidity.............20 to 30 pct. 24 hr Trend...........Up 5 to 9 pct. * Wind (20 ft/10-min avg)..Northwest 10 to 15 mph. * 10000 ft MSL Wind........North 10 to 15 mph. * Mixing height............12721 ft AGL. * Transport winds..........North 9 to 13 knots. * Ventilation Category.....Excellent (139931 knot-ft). .TONIGHT... * Sky/Weather..............Mostly cloudy (50-60 pct) then becoming partly cloudy (45-55 pct). Slight chance of showers and thunderstorms. * Chance of Precip.........50 pct. * Chance of Thunder........20 pct. * Min Temperature..........61 to 71 degs. 24 hr Trend...........Down 1 deg. * Max Humidity.............58 to 68 pct. 24 hr Trend...........Up 19 to 23 pct. * Wind (20 ft/10-min avg)..West 10 to 15 mph. * 10000 ft MSL Wind........North 15 to 20 mph. .FRIDAY... * Sky/Weather..............Partly cloudy (30-40 pct). Chance of showers and thunderstorms. * Chance of Precip.........20 pct. * Chance of Thunder........20 pct. * Max Temperature..........83 to 93 degs. 24 hr Trend...........Down 1 deg. * Min Humidity.............25 to 35 pct. 24 hr Trend...........Up 3 to 7 pct. * Wind (20 ft/10-min avg)..West 10 to 15 mph. * 10000 ft MSL Wind........North 5 to 10 mph. * Mixing height............11117 ft AGL. * Transport winds..........Northwest 11 to 13 knots. * Ventilation Category.....Excellent (133404 knot-ft). .Forecast days 3 through 7...... Winds in Days 3 through 5 are surface 20 ft/10-min avg .SATURDAY...Partly cloudy. Chance of showers and thunderstorms. Lows 61 to 71. Highs 82 to 92. West wind around 15 mph. Minimum Humidity 26 to 36 pct. .SUNDAY...Mostly cloudy. Chance of showers and thunderstorms. Lows 60 to 70. Highs 81 to 91. East wind around 15 mph. Minimum Humidity 27 to 37 pct. .MONDAY...Mostly cloudy. Chance of showers and thunderstorms. Lows 59 to 69. Highs 78 to 88. East wind around 25 mph. Minimum Humidity 37 to 47 pct. .TUESDAY...Partly cloudy. Slight chance of showers and thunderstorms. Lows 59 to 69. Highs 78 to 88. .WEDNESDAY...Partly cloudy. Slight chance of showers and thunderstorms. Lows 60 to 70. Highs 78 to 88. NOTE TO USERS - ZONE 154 VENTILATION CATEGORY...MIXING HEIGHT AND TRANSPORT WINDS ARE BASED ON THE AVERAGE ACROSS THE ZONE $$ Visit us on Facebook...Twitter...YouTube...and at weather.gov/Tucson