FNUS55 KTWC 091943 FWFTWC Fire Weather Planning Forecast for Southeast Arizona National Weather Service Tucson AZ 1243 PM 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. Gusty northwest winds of 15-20 mph and gusts to around 30 mph in the Gila River Valley Friday afternoon/early evening. 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, except in the Gila River Valley on Friday. There will be a daily chance of showers and thunderstorms mainly during the afternoon/evening hours through Friday. Increasing thunderstorm chances and coverage are expected over the weekend through early next week. AZZ150-101415- Arizona Fire Weather Zone 150 Sonoran FDRA-Most of Pima County-South Central Pinal County- Tohono O'odham Nation-Tucson Metropolitan area-TDC- 1243 PM MST Thu Jul 9 2026 .TONIGHT... * Sky/Weather..............Partly cloudy (35-45 pct). Slight chance of showers and thunderstorms. * Chance of Precip.........10 pct. * Chance of Thunder........10 pct. * Min Temperature..........75 to 85 degs. 24 hr Trend...........Little change. * Max Humidity.............46 to 56 pct. 24 hr Trend...........Up 3 to 6 pct. * Wind (20 ft/10-min avg)..Southwest around 15 mph shifting to the south after midnight. * 10000 ft MSL Wind........Northwest 10 to 15 mph. .FRIDAY... * Sky/Weather..............Partly cloudy (35-45 pct) then becoming mostly sunny (20-30 pct). * Chance of Precip.........0 pct. * Chance of Thunder........0 pct. * Max Temperature..........99 to 109 degs. 24 hr Trend...........Down 2 to 5 degs. * Min Humidity.............19 to 29 pct. 24 hr Trend...........Up 2 to 5 pct. * Wind (20 ft/10-min avg)..South around 15 mph shifting to the west in the afternoon. * 10000 ft MSL Wind........Northwest 5 to 10 mph. * Mixing height............9848 ft AGL. * Transport winds..........Southwest 13 to 17 knots. * Ventilation Category.....Excellent (167416 knot-ft). .FRIDAY NIGHT... * Sky/Weather..............Partly cloudy (20-30 pct). * Chance of Precip.........0 pct. * Chance of Thunder........0 pct. * Min Temperature..........74 to 84 degs. 24 hr Trend...........Down 1 deg. * Max Humidity.............51 to 61 pct. 24 hr Trend...........Up 3 to 6 pct. * Wind (20 ft/10-min avg)..Southwest 10 to 15 mph. * 10000 ft MSL Wind........Northwest around 10 mph shifting to the northeast after midnight. .SATURDAY... * Sky/Weather..............Partly cloudy (30-40 pct). Chance of showers and slight chance of thunderstorms. * Chance of Precip.........30 pct. * Chance of Thunder........20 pct. * Max Temperature..........97 to 107 degs. 24 hr Trend...........Down 1 to 4 degs. * Min Humidity.............24 to 34 pct. 24 hr Trend...........Up 2 to 5 pct. * Wind (20 ft/10-min avg)..South around 10 mph shifting to the west in the afternoon. * 10000 ft MSL Wind........Northeast 10 to 15 mph. * Mixing height............6332 ft AGL. * Transport winds..........Southwest 10 to 13 knots. * Ventilation Category.....Very good (82316 knot-ft). .Forecast days 3through 7...... Winds in Days 3 through 5 are surface 20 ft/10-min avg .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 27 to 37 pct. .TUESDAY...Partly cloudy. Slight chance of showers and thunderstorms. Lows 72 to 82. Highs 96 to 106. Light winds. Minimum Humidity 25 to 35 pct. .WEDNESDAY...Partly cloudy. Slight chance of showers and thunderstorms. Lows 73 to 83. Highs 97 to 107. .THURSDAY...Partly cloudy. Chance of showers and thunderstorms. Lows 72 to 82. Highs 94 to 104. NOTE TO USERS - ZONE 150 VENTILATION CATEGORY...MIXING HEIGHT AND TRANSPORT WINDS ARE BASED ON THE TUCSON INTERNATIONAL AIRPORT LOCATION (2550 MSL) $$ AZZ151-101415- 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- 1243 PM MST Thu Jul 9 2026 .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..........66 to 76 degs. 24 hr Trend...........Down 2 to 5 degs. * Max Humidity.............61 to 71 pct. 24 hr Trend...........Up 3 to 7 pct. * Wind (20 ft/10-min avg)..South 10 to 15 mph. * 10000 ft MSL Wind........North 15 to 20 mph. .FRIDAY... * Sky/Weather..............Partly cloudy (35-45 pct). Slight chance of showers and thunderstorms. * Chance of Precip.........10 pct. * Chance of Thunder........10 pct. * Max Temperature..........92 to 102 degs. 24 hr Trend...........Down 2 to 5 degs. * Min Humidity.............25 to 35 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............8796 ft AGL. * Transport winds..........West 11 to 13 knots. * Ventilation Category.....Excellent (114348 knot-ft). .FRIDAY NIGHT... * 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..........66 to 76 degs. 24 hr Trend...........Up 1 to 4 degs. * Max Humidity.............67 to 77 pct. 24 hr Trend...........Up 4 to 8 pct. * Wind (20 ft/10-min avg)..Southwest 10 to 15 mph. * 10000 ft MSL Wind........North 15 to 20 mph. .SATURDAY... * Sky/Weather..............Partly cloudy (35-45 pct). Chance of showers and thunderstorms. * Chance of Precip.........40 pct. * Chance of Thunder........40 pct. * Max Temperature..........91 to 101 degs. 24 hr Trend...........Little change. * Min Humidity.............29 to 39 pct. 24 hr Trend...........Up 11 to 15 pct. * Wind (20 ft/10-min avg)..West around 10 mph. * 10000 ft MSL Wind........Northeast 10 to 15 mph. * Mixing height............7036 ft AGL. * Transport winds..........Northwest 11 to 12 knots. * Ventilation Category.....Very good (84432 knot-ft). .Forecast days 3 through 7...... Winds in Days 3 through 5 are surface 20 ft/10-min avg .SUNDAY...Showers and thunderstorms likely. Lows 65 to 75. Highs 91 to 101. Light winds. Minimum Humidity 27 to 37 pct. .MONDAY...Mostly cloudy. Chance of showers and thunderstorms. Lows 64 to 74. Highs 88 to 98. Southeast wind around 15 mph. Minimum Humidity 32 to 42 pct. .TUESDAY...Partly cloudy. Chance of showers and thunderstorms. Lows 64 to 74. Highs 87 to 97. East wind around15 mph. Minimum Humidity 31 to 41 pct. .WEDNESDAY...Partly cloudy. Chance of showers and thunderstorms. Lows 65 to 75. Highs 89 to 99. .THURSDAY...Partly cloudy. Chance of showers and thunderstorms. Lows 64 to 74. Highs 87 to 97. NOTE TO USERS - ZONE 151 VENTILATION CATEGORY...MIXING HEIGHT AND TRANSPORT WINDS ARE BASED ON THE BUENOS AIRES N.W.R. LOCATION (3500 MSL) $$ AZZ152-101415- 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- 1243 PM MST Thu Jul 9 2026 .TONIGHT... * Sky/Weather..............Partly cloudy (45-55 pct). Chance of showers and thunderstorms. * Chance of Precip.........30 pct. * Chance of Thunder........30 pct. * Min Temperature..........65 to 75 degs. 24 hr Trend...........Down 3 to 6 degs. * Max Humidity.............58 to 68 pct. 24 hr Trend...........Down 3 to 6 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). Slight chance of showers and thunderstorms. * Chance of Precip.........10 pct. * Chance of Thunder........10 pct. * Max Temperature..........94 to 104 degs. 24 hr Trend...........Down 3 to 6 degs. * Min Humidity.............18 to 28 pct. 24 hr Trend...........Down 1 to 4 pct. * Wind (20 ft/10-min avg)..Northwest 10 to 15 mph. * 10000 ft MSL Wind........North 5 to 10 mph. * Mixing height............9975 ft AGL. * Transport winds..........Northwest 14 knots. * Ventilation Category.....Excellent (139650 knot-ft). .FRIDAY NIGHT... * Sky/Weather..............Partly cloudy (35-45 pct). Chance of showers and thunderstorms. * Chance of Precip.........30 pct. * Chance of Thunder........30 pct. * Min Temperature..........66 to 76 degs. 24 hr Trend...........Little change. * Max Humidity.............65 to 75 pct. 24 hr Trend...........Down 1 pct. * Wind (20 ft/10-min avg)..West 10 to 15 mph. * 10000 ft MSL Wind........North 15 to 20 mph. .SATURDAY... * Sky/Weather..............Partly cloudy (30-40 pct). Slight chance of showers and thunderstorms. * Chance of Precip.........20 pct. * Chance of Thunder........20 pct. * Max Temperature..........94 to 104 degs. 24 hr Trend...........Little change. * Min Humidity.............21 to 31 pct. 24 hr Trend...........Up 7 to 11 pct. * Wind (20 ft/10-min avg)..West 10 to 15 mph. * 10000 ft MSL Wind........Northeast around 20 mph decreasing to around 10 mph in the afternoon. * Mixing height............8664 ft AGL. * Transport winds..........Northwest 11 to 14 knots. * Ventilation Category.....Excellent (121296 knot-ft). .Forecast days 3 through 7...... Winds in Days 3 through 5 are surface 20 ft/10-min avg .SUNDAY...Mostly cloudy. Chance of showers and thunderstorms. Lows 65 to 75. Highs 92 to 102. East wind around 15 mph. Minimum Humidity 20 to 30 pct. .MONDAY...Mostly cloudy. Chance of showers and thunderstorms. Lows 64 to 74. Highs 89 to 99. East wind around 20 mph. Minimum Humidity 26 to 36 pct. .TUESDAY...Partly cloudy. Slight chance of showers and thunderstorms. Lows 64 to 74. Highs 88 to 98. East wind around 15 mph. Minimum Humidity 26 to 36 pct. .WEDNESDAY...Partly cloudy. Slight chance of showers and thunderstorms. Lows 63 to 73. Highs 88 to 98. .THURSDAY...Partly cloudy. Slight chance of showers and thunderstorms. Lows 63 to 73. Highs 88 to 98. NOTE TO USERS - ZONE 152 VENTILATION CATEGORY...MIXING HEIGHT AND TRANSPORT WINDS ARE BASED ON THE CHIRICAHUA N.M. LOCATION (5400 MSL) $$ AZZ153-101415- 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- 1243 PM MST Thu Jul 9 2026 .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..........59 to 69 degs. 24 hr Trend...........Little change. * Max Humidity.............49 to 59 pct. 24 hr Trend...........Down 3 to 6 pct. * Wind (20 ft/10-min avg)..Northwest around 10 mph. * 10000 ft MSL Wind........Northwest 15 to 20 mph. .FRIDAY... * Sky/Weather..............Mostly sunny (15-25 pct) then becoming partly cloudy (35-45 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.............18 to 28 pct. 24 hr Trend...........Down 1 pct. * Wind (20 ft/10-min avg)..Northwest 10 to 15 mph. * 10000 ft MSL Wind........Northwest 10 to 15 mph. * Mixing height............11446 ft AGL. * Transport winds..........Northwest 13 to 14 knots. * Ventilation Category.....Excellent (160244 knot-ft). .FRIDAY NIGHT... * Sky/Weather..............Partly cloudy (30-40 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...........Up 1 deg. * Max Humidity.............48 to 58 pct. 24 hr Trend...........Down 1 pct. * Wind (20 ft/10-min avg)..Northwest 10 to 15 mph. * 10000 ft MSL Wind........Northwest around 10 mph increasing to around 20 mph after midnight. .SATURDAY... * Sky/Weather..............Mostly sunny (15-25 pct) then becoming partly cloudy (45-55 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.............15 to 25 pct. 24 hr Trend...........Up 1 to 4 pct. * Wind (20 ft/10-min avg)..Northwest around 10 mph shifting to the southwest in the afternoon. * 10000 ft MSL Wind........North around 20 mph becoming east around 5 mph in the afternoon. * Mixing height............11553 ft AGL. * Transport winds..........North 13 knots shifting to the northeast 11 knots in the afternoon. * Ventilation Category.....Excellent (127083 knot-ft). .Forecast days 3 through 7...... Winds in Days 3 through 5 are surface 20 ft/10-min avg .SUNDAY...Partly cloudy. Chance of showers and thunderstorms. Lows 60 to 70. Highs 83 to 93. Light winds. Minimum Humidity 22 to 32 pct. .MONDAY...Mostly cloudy. Chance of showers and thunderstorms. Lows 58 to 68. Highs 79 to 89. East wind around 15 mph. Minimum Humidity 29 to 39 pct. .TUESDAY...Partly cloudy. Slight chance of showers and thunderstorms. Lows 58 to 68. Highs 78 to 88. Light winds. Minimum Humidity 30 to 40 pct. .WEDNESDAY...Partly cloudy. Slight chance of showers and thunderstorms. Lows 58 to 68. Highs 78 to 88. .THURSDAY...Partly cloudy. Chance of showers and thunderstorms. Lows 57 to 67. Highs 77 to 87. NOTE TO USERS - ZONE 153 VENTILATION CATEGORY...MIXING HEIGHT AND TRANSPORT WINDS ARE BASED ON THE POINT OF PINES LOCATION (6040 MSL) $$ AZZ154-101415- Arizona Fire Weather Zone 154 Forest Woodlands FDRA including the Sky Islands of Southeast Arizona above 5500 feet-Coronado NF-TDC- 1243 PM MST Thu Jul 9 2026 .TONIGHT... * Sky/Weather..............Mostly cloudy (45-55 pct). Chance of showers and thunderstorms. * Chance of Precip.........40 pct. * Chance of Thunder........30 pct. * Min Temperature..........61 to 71 degs. 24 hr Trend...........Down 1 to 4 degs. * Max Humidity.............57 to 67 pct. 24 hr Trend...........Up 9 to 13 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 (35-45 pct). Slight 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 to 4 degs. * Min Humidity.............27 to 37 pct. 24 hr Trend...........Up 1 pct. * Wind (20 ft/10-min avg)..Northwest 10 to 15 mph. * 10000 ft MSL Wind........North 5 to 10 mph. * Mixing height............10554 ft AGL. * Transport winds..........Northwest 12 to 13 knots. * Ventilation Category.....Excellent (131925 knot-ft). .FRIDAY NIGHT... * Sky/Weather..............Partly cloudy (35-45 pct). Chance of thunderstorms and slight chance of showers. * Chance of Precip.........40 pct. * Chance of Thunder........40 pct. * Min Temperature..........61 to 71 degs. 24 hr Trend...........Little change. * Max Humidity.............63 to 73 pct. 24 hr Trend...........Up 8 to 12 pct. * Wind (20 ft/10-min avg)..West 10 to 15 mph. * 10000 ft MSL Wind........North 15 to 20 mph. .SATURDAY... * Sky/Weather..............Partly cloudy (35-45 pct). Chance of showers and thunderstorms. * Chance of Precip.........40 pct. * Chance of Thunder........40 pct. * Max Temperature..........82 to 92 degs. 24 hr Trend...........Little change. * Min Humidity.............30 to 40 pct. 24 hr Trend...........Up 4 to 8 pct. * Wind (20 ft/10-min avg)..Northwest 10 to 15 mph. * 10000 ft MSL Wind........Northeast 10 to 15 mph. * Mixing height............10800 ft AGL. * Transport winds..........Northwest 11 to 12 knots. * Ventilation Category.....Excellent (124200 knot-ft). .Forecast days 3 through 7...... Winds in Days 3 through 5 are surface 20 ft/10-min avg .SUNDAY...Mostly cloudy. Chance of showers and thunderstorms. Lows 61 to 71. Highs 81 to 91. East wind around 15 mph. Minimum Humidity 29 to 39 pct. .MONDAY...Mostly cloudy. Chance of showers and thunderstorms. Lows 59 to 69. Highs 78 to 88. East wind around 20 mph. Minimum Humidity 36 to 46 pct. .TUESDAY...Partly cloudy. Chance of showers and thunderstorms. Lows 60 to 70. Highs 77 to 87. East wind around 20 mph. Minimum Humidity 36 to 46 pct. .WEDNESDAY...Partly cloudy. Slight chance of showers and thunderstorms. Lows 59 to 69. Highs 78 to 88. .THURSDAY...Partly cloudy. Chance of showers and thunderstorms. Lows 59 to 69. Highs 77 to 87. 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