FNUS55 KTWC 081231 FWFTWC Fire Weather Planning Forecast for Southeast Arizona National Weather Service Tucson AZ 531 AM MST Wed Jul 8 2026 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 20-FOOT WIND FORECAST OF 'LIGHT WINDS' INDICATES MAINLY TERRAIN DRIVEN WINDS +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ .DISCUSSION...Above normal high temperatures (4-7 degrees) through Thursday, with highs lowering to around normal over the upcoming weekend. Min RH values in the lower elevations in the 13-17 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 this work week. There is the potential for increasing thunderstorm chances and coverage this weekend. AZZ150-082200- Arizona Fire Weather Zone 150 Sonoran FDRA-Most of Pima County-South Central Pinal County- Tohono O'odham Nation-Tucson Metropolitan area-TDC- 531 AM MST Wed Jul 8 2026 .TODAY... * Sky/Weather..............Mostly sunny (15-25 pct) then becoming partly cloudy (25-35 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...........Up 1 to 4 pct. * Wind (20 ft/10-min avg)..Light winds becoming west around 10 mph in the afternoon. * 10000 ft MSL Wind........East around 10 mph shifting to the south in the afternoon. * Mixing height............12590 ft AGL. * Transport winds..........Southwest 9 knots shifting to the northwest in the afternoon. * Ventilation Category.....Excellent (113310 knot-ft). .TONIGHT... * Sky/Weather..............Partly cloudy (30-40 pct). Areas of blowing dust. Slight chance of showers and thunderstorms. * Chance of Precip.........10 pct. * Chance of Thunder........10 pct. * Min Temperature..........76 to 86 degs. 24 hr Trend...........Little change. * Max Humidity.............40 to 50 pct. 24 hr Trend...........Down 1 to 4 pct. * Wind (20 ft/10-min avg)..South around 10 mph. * 10000 ft MSL Wind........Northwest 5 to 10 mph. .THURSDAY... * 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...........Down 1 deg. * Min Humidity.............15 to 25 pct. 24 hr Trend...........Up 1 to 4 pct. * Wind (20 ft/10-min avg)..South around 10 mph shifting to the west in the afternoon. * 10000 ft MSL Wind........West 5 to 10 mph. * Mixing height............12867 ft AGL. * Transport winds..........Southwest 12 knots shifting to the west 13 knots in the afternoon. * Ventilation Category.....Excellent (167271 knot-ft). .Forecast days 3 through 7...... Winds in Days 3 through 5 are surface 20 ft/10-min avg .FRIDAY...Mostly clear. Lows 75 to 85. Highs 100 to 110. Southwest wind around 15 mph. Minimum Humidity 17 to 27 pct. .SATURDAY...Partly cloudy. Chance of showers and thunderstorms. Lows 74 to 84. Highs 98 to 108. Southwest wind around 15 mph. Minimum Humidity 20 to 30 pct. .SUNDAY...Mostly cloudy. Chance of showers and thunderstorms. Lows 73 to 83. Highs 97 to 107. Light winds. Minimum Humidity 21 to 31 pct. .MONDAY...Mostly cloudy. Chance of showers and thunderstorms. Lows 72 to 82. Highs 95 to 105. .TUESDAY...Partlycloudy. Slight chance of showers and thunderstorms. Lows 72 to 82. Highs 96 to 106. NOTE TO USERS - ZONE 150 VENTILATION CATEGORY...MIXING HEIGHT AND TRANSPORT WINDS ARE BASED ON THE TUCSON INTERNATIONAL AIRPORT LOCATION (2550 MSL) $$ AZZ151-082200- 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- 531 AM MST Wed Jul 8 2026 .TODAY... * Sky/Weather..............Mostly sunny (20-30 pct) then becoming partly cloudy (30-40 pct). Slight chance of showers and thunderstorms. * Chance of Precip.........20 pct. * Chance of Thunder........20 pct. * Max Temperature..........95 to 105 degs. 24 hr Trend...........Down 1 deg. * Min Humidity.............16 to 26 pct. 24 hr Trend...........Up 1 pct. * Wind (20 ft/10-min avg)..Light winds becoming northwest around 10 mph in the afternoon. * 10000 ft MSL Wind........East around 10 mph shifting to the south in the afternoon. * Mixing height............12464 ft AGL. * Transport winds..........North 7 to 10 knots. * Ventilation Category.....Excellent (124640 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..........68 to 78 degs. 24 hr Trend...........Up 1 deg. * Max Humidity.............51 to 61 pct. 24 hr Trend...........Down 3 to 6 pct. * Wind (20 ft/10-min avg)..Northwest around 10 mph. * 10000 ft MSL Wind........North 10 to 15 mph. .THURSDAY... * Sky/Weather..............Mostly sunny (20-30 pct) then becoming 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...........Up 1 to 4 degs. * Min Humidity.............18 to 28 pct. 24 hr Trend...........Little change. * Wind (20 ft/10-min avg)..West 10 to 15 mph. * 10000 ft MSL Wind........North 5 to 10 mph. * Mixing height............11031 ft AGL. * Transport winds..........Northwest 9 to 14 knots. * Ventilation Category.....Excellent (154434 knot-ft). .Forecast days 3 through 7...... Winds in Days 3 through 5 are surface 20 ft/10-min avg .FRIDAY...Partly cloudy. Chance of showers and thunderstorms. Lows 68 to 78. Highs 93 to 103. Southwest wind around 15 mph. Minimum Humidity 22 to 32 pct. .SATURDAY...Partly cloudy. Chance of showers and thunderstorms. Lows 66 to 76. Highs 92 to 102. West wind around 15 mph. Minimum Humidity 24 to 34 pct. .SUNDAY...Mostly cloudy. Chance of showers and thunderstorms. Lows 66 to 76. Highs 91 to 101. Light winds. Minimum Humidity 24 to 34 pct. .MONDAY...Mostly cloudy. Chance of showers and thunderstorms. Lows 64 to 74. Highs 88 to 98. .TUESDAY...Partly cloudy. Chance of showers and thunderstorms. Lows 64 to 74. Highs 88 to 98. NOTE TO USERS - ZONE 151 VENTILATION CATEGORY...MIXING HEIGHT AND TRANSPORT WINDS ARE BASED ON THE BUENOS AIRES N.W.R. LOCATION (3500 MSL) $$ AZZ152-082200- 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- 531 AM MST Wed Jul 8 2026 .TODAY... * Sky/Weather..............Mostly sunny (10-20 pct) then becoming partly cloudy (35-45 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...........Up 3 to 6 degs. * Min Humidity.............14 to 24 pct. 24 hr Trend...........Down 2 to 5 pct. * Wind (20 ft/10-min avg)..Light winds becoming north around 10 mph in the afternoon. * 10000 ft MSL Wind........Northeast around 5 mph shifting to the south in the afternoon. * Mixing height............11703 ft AGL. * Transport winds..........Northeast 6 to 10 knots. * Ventilation Category.....Excellent (117030 knot-ft). .TONIGHT... * Sky/Weather..............Mostly cloudy (50-60 pct) then becoming partly cloudy (25-35 pct). Slight chance of showers and thunderstorms. * Chance of Precip.........20 pct. * Chance of Thunder........20 pct. * Min Temperature..........67 to 77 degs. 24 hr Trend...........Up 1 deg. * Max Humidity.............47 to 57 pct. 24 hr Trend...........Up 1 pct. * Wind (20 ft/10-min avg)..Northwest around 10 mph. * 10000 ft MSL Wind........North 10 to 15 mph. .THURSDAY... * Sky/Weather..............Mostly sunny (20-30 pct) then becoming partly cloudy (25-35 pct). * Chance of Precip.........10 pct. * Chance of Thunder........0 pct. * Max Temperature..........96 to 106 degs. 24 hr Trend...........Little change. * 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............12897 ft AGL. * Transport winds..........Northwest 10 to 16 knots. * Ventilation Category.....Excellent (206352 knot-ft). .Forecast days 3 through 7...... Winds in Days 3 through 5 are surface 20 ft/10-min avg .FRIDAY...Partly cloudy. Chance of showers and thunderstorms. Lows 67 to 77. Highs 95 to 105. West wind around 15 mph. Minimum Humidity 15 to 25 pct. .SATURDAY...Partly cloudy. Slight chance of showers and thunderstorms. Lows 66 to 76. Highs 94 to 104. West wind around 15 mph. Minimum Humidity 16 to 26 pct. .SUNDAY...Mostly cloudy. Chance of showers and thunderstorms. Lows 66 to 76. Highs 93 to 103. Southeast wind around 15 mph. Minimum Humidity 17 to 27 pct. .MONDAY...Mostly cloudy. Chance of showers and thunderstorms. Lows 64 to 74. Highs 89 to 99. .TUESDAY...Partly cloudy. Chance of showers and thunderstorms. Lows 63 to 73. 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) $$ AZZ153-082200- 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- 531 AM MST Wed Jul 8 2026 .TODAY... * Sky/Weather..............Mostly sunny (10-20 pct) then becoming partly cloudy (40-50 pct). Showers likely and chance of thunderstorms. * Chance of Precip.........60 pct. * Chance of Thunder........50 pct. * Max Temperature..........84 to 94 degs. 24 hr Trend...........Up 1 deg. * Min Humidity.............18 to 28 pct. 24 hr Trend...........Up 1 pct. * Wind (20 ft/10-min avg)..Light winds becoming west around 10 mph in the afternoon. * 10000 ft MSL Wind........Northeast around 5 mph shifting to the south in the afternoon. * Mixing height............11631 ft AGL. * Transport winds..........Northeast 7 knots shifting to the north 13 knots in the afternoon. * Ventilation Category.....Excellent (151203 knot-ft). .TONIGHT... * Sky/Weather..............Mostly cloudy (60-70 pct) then becoming partly cloudy (25-35 pct). Slight chance of showers and thunderstorms. * Chance of Precip.........20 pct. * Chance of Thunder........20 pct. * Min Temperature..........59 to 69 degs. 24 hr Trend...........Down 1 deg. * Max Humidity.............52 to 62 pct. 24 hr Trend...........Down 2 to 5 pct. * Wind (20 ft/10-min avg)..North around 10 mph. * 10000 ft MSL Wind........Northwest 10 to 15 mph. .THURSDAY... * Sky/Weather..............Mostly sunny (15-25 pct) then becoming partly cloudy (25-35 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...........Up 1 to 4 degs. * Min Humidity.............17 to 27 pct. 24 hr Trend...........Down 2 to 5 pct. * Wind (20 ft/10-min avg)..Northwest 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............12536 ft AGL. * Transport winds..........Northwest 11 to 19 knots. * Ventilation Category.....Excellent (238184 knot-ft). .Forecast days 3 through 7...... Winds in Days 3 through 5 are surface 20 ft/10-min avg .FRIDAY...Partly cloudy. Slight chance of showers and thunderstorms. Lows 60 to 70. Highs 86 to 96. Northwest wind around 15 mph. Minimum Humidity 15 to 23 pct. .SATURDAY...Partly cloudy. Slight chance of showers and thunderstorms. Lows 60 to 70. Highs 87 to 97. Light winds. Minimum Humidity 12 to 22 pct. .SUNDAY...Mostly cloudy. Chance of showers and thunderstorms. Lows 60 to 70. Highs 84 to 94. Light winds. Minimum Humidity 19 to 29 pct. .MONDAY...Mostly cloudy. Chance of showers and thunderstorms. Lows 58 to 68. Highs 79 to 89. .TUESDAY...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) $$ AZZ154-082200- Arizona Fire Weather Zone 154 Forest Woodlands FDRA including the Sky Islands of Southeast Arizona above 5500 feet-Coronado NF-TDC- 531 AM MST Wed Jul 8 2026 .TODAY... * Sky/Weather..............Mostly sunny (10-20 pct) then becoming partly cloudy (25-35 pct). Slight chance of showers and thunderstorms. * Chance of Precip.........20 pct. * Chance of Thunder........20 pct. * Max Temperature..........84 to 94 degs. 24 hr Trend...........Up 1 deg. * Min Humidity.............20 to 30 pct. 24 hr Trend...........Down 3 to 6 pct. * Wind (20 ft/10-min avg)..Light winds becoming northwest around 10 mph in the afternoon. * 10000 ft MSL Wind........East around 5 mph shifting to the southeast in the afternoon. * Mixing height............13064 ft AGL. * Transport winds..........Northeast 7 to 8 knots. * Ventilation Category.....Very good (97980 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..........63 to 73 degs. 24 hr Trend...........Up 1 deg. * Max Humidity.............47 to 57 pct. 24 hr Trend...........Down 2 to 5 pct. * Wind (20 ft/10-min avg)..North around 10 mph. * 10000 ft MSL Wind........North 10 to 15 mph. .THURSDAY... * 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..........85 to 95 degs. 24 hr Trend...........Little change. * Min Humidity.............19 to 29 pct. 24 hr Trend...........Up 2 to 5 pct. * Wind (20 ft/10-min avg)..Northwest 10 to 15 mph. * 10000 ft MSL Wind........North 10 to 15 mph. * Mixing height............13577 ft AGL. * Transport winds..........North 10 to 15 knots. * Ventilation Category.....Excellent (169712 knot-ft). .Forecast days 3 through 7...... Winds in Days 3 through 5 are surface 20 ft/10-min avg .FRIDAY...Partly cloudy. Chance of showers and thunderstorms. Lows 62 to 72. Highs 83 to 93. West wind around 15 mph. Minimum Humidity 22 to 32 pct. .SATURDAY...Partly cloudy. Chance of showers and thunderstorms. Lows 61 to 71. Highs 83 to 93. West wind around 15 mph. Minimum Humidity 24 to 34 pct. .SUNDAY...Mostly cloudy. Chance of showers and thunderstorms. Lows 61 to 71. Highs 81 to 91. Southeast wind around 15 mph. Minimum Humidity 26 to 36 pct. .MONDAY...Mostly cloudy. Chance of showers and thunderstorms. Lows 59 to 69. Highs 78 to 88. .TUESDAY...Partly cloudy. Chance of showers and thunderstorms. Lows 59 to 69. 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