FNUS55 KTWC 210907 FWFTWC Fire Weather Planning Forecast for Southeast Arizona National Weather Service Tucson AZ 207 AM MST Sun Jun 21 2026 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 20-FOOT WIND FORECAST OF 'LIGHT WINDS' INDICATES MAINLY TERRAIN DRIVEN WINDS +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ .DISCUSSION...Winds will remain west/northwest through this week with speeds of 10-15 mph and gusts 20-25 mph across much of the area with stronger speeds of 15-20 mph and gusts to 30 mph in lower elevations of Graham county. Fire weather conditions will be elevated most afternoons in the Gila River Valley. Minimum relative humidity values will be 5 to 15 percent in the valleys and 10 to 20 percent in the mountains through the middle of the week. No storms in the short term forecast with dry conditions expected through mid-week. Moisture moves in starting Wednesday raising RH 5-10 percent and will also lead to a chance for storms over the White Mountains and Santa Cruz and Cochise Counties Thursday and Friday afternoons. AZZ150-212215- Arizona Fire Weather Zone 150 Sonoran FDRA-Most of Pima County-South Central Pinal County- Tohono O'odham Nation-Tucson Metropolitan area-TDC- 207 AM MST Sun Jun 21 2026 .TODAY... * Sky/Weather..............Mostly sunny (15-25 pct). * Chance of Precip.........0 pct. * Chance of Thunder........0 pct. * Max Temperature..........96 to 106 degs. 24 hr Trend...........Down 1 deg. * Min Humidity.............4 to 9 pct. 24 hr Trend...........Little change. * Wind (20 ft/10-min avg)..Light winds becoming southwest around 10 mph in the afternoon. * 10000 ft MSL Wind........Southwest 20 to 25 mph. * Mixing height............9668 ft AGL. * Transport winds..........South 7 to 13 knots. * Ventilation Category.....Excellent (125684 knot-ft). .TONIGHT... * Sky/Weather..............Partly cloudy (25-35 pct). * Chance of Precip.........0 pct. * Chance of Thunder........0 pct. * Min Temperature..........66 to 76 degs. 24 hr Trend...........Up 1 to 4 degs. * Max Humidity.............15 to 25 pct. 24 hr Trend...........Up 1 pct. * Wind (20 ft/10-min avg)..Southwest around 10 mph shifting to the south after midnight. * 10000 ft MSL Wind........Southwest 20 to 25 mph. .MONDAY... * Sky/Weather..............Partly cloudy (20-30 pct) then becoming mostly sunny (5-15 pct). * Chance of Precip.........0 pct. * Chance of Thunder........0 pct. * Max Temperature..........98 to 108 degs. 24 hr Trend...........Up 1 to 4 degs. * Min Humidity.............6 to 14 pct. 24 hr Trend...........Up 1 to 4 pct. * Wind (20 ft/10-min avg)..South around 10 mph shifting to the southwest in the afternoon. * 10000 ft MSL Wind........Southwest around 20 mph decreasing to around 10 mph in the afternoon. * Mixing height............10508 ft AGL. * Transport winds..........South 10 to 11 knots. * Ventilation Category.....Excellent (115588 knot-ft). .Forecast days 3 through 7...... Winds in Days 3 through 5 are surface 20 ft/10-min avg .TUESDAY...Mostly clear. Lows 70 to 80. Highs 100 to 110. Light winds. Minimum Humidity 9 to 17 pct. .WEDNESDAY...Mostly clear. Lows 72 to 82. Highs 101 to 111. Light winds. Minimum Humidity 11 to 18 pct. .THURSDAY...Mostly clear. Lows 74 to 84. Highs 102 to 112. Southwest wind around 15 mph. Minimum Humidity 11 to 17 pct. .FRIDAY...Mostly clear. Lows 74 to 84. Highs 100 to 110. .SATURDAY...Mostly clear. Lows 72 to 82. 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) $$ AZZ151-212215- 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- 207 AM MST Sun Jun 21 2026 .TODAY... * Sky/Weather..............Mostly sunny (10-20 pct). * Chance of Precip.........0 pct. * Chance of Thunder........0 pct. * Max Temperature..........93 to 103 degs. 24 hr Trend...........Up 1 to 4 degs. * Min Humidity.............5 to 13 pct. 24 hr Trend...........Down 1 pct. * Wind (20 ft/10-min avg)..South around 10 mph shifting to the southwest in the afternoon. * 10000 ft MSL Wind........Southwest 20 to 25 mph. * Mixing height............7365 ft AGL. * Transport winds..........Southwest 13 to 16 knots. * Ventilation Category.....Excellent (117840 knot-ft). .TONIGHT... * Sky/Weather..............Partly cloudy (25-35 pct). * Chance of Precip.........0 pct. * Chance of Thunder........0 pct. * Min Temperature..........62 to 72 degs. 24 hr Trend...........Up 1 to 4 degs. * Max Humidity.............16 to 26 pct. 24 hr Trend...........Up 3 to 6 pct. * Wind (20 ft/10-min avg)..West around 15 mph in the evening becoming light. * 10000 ft MSL Wind........Southwest 15 to 20 mph. .MONDAY... * Sky/Weather..............Partly cloudy (20-30 pct) then becoming mostly sunny (5-15 pct). * Chance of Precip.........0 pct. * Chance of Thunder........0 pct. * Max Temperature..........95 to 105 degs. 24 hr Trend...........Little change. * Min Humidity.............8 to 16 pct. 24 hr Trend...........Up 3 to 7 pct. * Wind (20 ft/10-min avg)..South around 10 mph shifting to the west in the afternoon. * 10000 ft MSL Wind........Southwest around 15 mph decreasing to around 5 mph in the afternoon. * Mixing height............8215 ft AGL. * Transport winds..........Southwest 9 to 12 knots. * Ventilation Category.....Very good (98580 knot-ft). .Forecast days 3 through 7...... Winds in Days 3 through 5 are surface 20 ft/10-min avg .TUESDAY...Mostly clear. Lows 65 to 75. Highs 97 to 107. West wind around 15 mph. Minimum Humidity 9 to 16 pct. .WEDNESDAY...Mostly clear. Lows 67 to 77. Highs 96 to 106. West wind around 15 mph. Minimum Humidity 11 to 20 pct. .THURSDAY...Mostly clear. Slight chance of showers and thunderstorms. Lows 68 to 78. Highs 96 to 106. West wind around 15 mph. Minimum Humidity 13 to 21 pct. .FRIDAY...Mostly clear. Slight chance of showers and thunderstorms. Lows 66 to 76. Highs 94 to 104. .SATURDAY...Mostly clear. Slight chance of showers and thunderstorms. Lows 65 to 75. Highs 92 to 102. NOTE TO USERS - ZONE 151 VENTILATION CATEGORY...MIXING HEIGHT AND TRANSPORT WINDS ARE BASED ON THE BUENOS AIRES N.W.R. LOCATION (3500 MSL) $$ AZZ152-212215- 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- 207 AM MST Sun Jun 21 2026 .TODAY... * Sky/Weather..............Mostly sunny (5-15 pct). * Chance of Precip.........0 pct. * Chance of Thunder........0 pct. * Max Temperature..........94 to 104 degs. 24 hr Trend...........Up 1 to 4 degs. * Min Humidity.............4 to 13 pct. 24 hr Trend...........Down 1 to 4 pct. * Wind (20 ft/10-min avg)..West 10 to 15 mph. * 10000 ft MSL Wind........Southwest 20 to 25 mph. * Mixing height............9539 ft AGL. * Transport winds..........West 12 to 16 knots. * Ventilation Category.....Excellent (152624 knot-ft). .TONIGHT... * Sky/Weather..............Partly cloudy (30-40 pct). * Chance of Precip.........0 pct. * Chance of Thunder........0 pct. * Min Temperature..........61 to 71 degs. 24 hr Trend...........Little change. * Max Humidity.............13 to 23 pct. 24 hr Trend...........Down 1 pct. * Wind (20 ft/10-min avg)..Northwest 10 to 15 mph. * 10000 ft MSL Wind........West 15 to 20 mph. .MONDAY... * Sky/Weather..............Partly cloudy (20-30 pct) then becoming mostly sunny (10-20 pct). * Chance of Precip.........0 pct. * Chance of Thunder........0 pct. * Max Temperature..........96 to 106 degs. 24 hr Trend...........Little change. * Min Humidity.............7 to 13 pct. 24 hr Trend...........Up 1 to 4 pct. * Wind (20 ft/10-min avg)..Light winds becoming west around 15 mph in the afternoon. * 10000 ft MSL Wind........West 10 to 15 mph. * Mixing height............11549 ft AGL. * Transport winds..........West 10 to 14 knots. * Ventilation Category.....Excellent (161686 knot-ft). .Forecast days 3 through 7...... Winds in Days 3 through 5 are surface 20 ft/10-min avg .TUESDAY...Mostly clear. Lows 65 to 75. Highs 98 to 108. Northwest wind around 20 mph. Minimum Humidity 8 to 14 pct. .WEDNESDAY...Mostly clear. Lows 66 to 76. Highs 97 to 107. Northwest wind around 20 mph. Minimum Humidity 9 to 17 pct. .THURSDAY...Mostly clear. Slight chance of showers and thunderstorms. Lows 67 to 77. Highs 96 to 106. West wind around 20 mph. Minimum Humidity 11 to 19 pct. .FRIDAY...Mostly clear. Slight chance of showers and thunderstorms. Lows 66 to 76. Highs 94 to 104. .SATURDAY...Mostly clear. Slight chance of showers and thunderstorms. Lows 65 to 75. Highs 92 to 102. NOTE TO USERS - ZONE 152 VENTILATION CATEGORY...MIXING HEIGHT AND TRANSPORT WINDS ARE BASED ON THE CHIRICAHUA N.M. LOCATION (5400 MSL) $$ AZZ153-212215- 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- 207 AM MST Sun Jun 21 2026 .TODAY... * Sky/Weather..............Mostly sunny (5-15 pct). * Chance of Precip.........0 pct. * Chance of Thunder........0 pct. * Max Temperature..........84 to 94 degs. 24 hr Trend...........Up 1 deg. * Min Humidity.............5 to 9 pct. 24 hr Trend...........Down 3 to 7 pct. * Wind (20 ft/10-min avg)..West 10 to 15 mph. * 10000 ft MSL Wind........West 20 to 25 mph. * Mixing height............8048 ft AGL. * Transport winds..........West 18 to 19 knots. * Ventilation Category.....Excellent (152912 knot-ft). .TONIGHT... * Sky/Weather..............Partly cloudy (25-35 pct). * Chance of Precip.........0 pct. * Chance of Thunder........0 pct. * Min Temperature..........52 to 62 degs. 24 hr Trend...........Little change. * Max Humidity.............15 to 25 pct. 24 hr Trend...........Down 1 to 4 pct. * Wind (20 ft/10-min avg)..Northwest 10 to 15 mph. * 10000 ft MSL Wind........West 20 to 25 mph. .MONDAY... * Sky/Weather..............Partly cloudy (25-35 pct) then becoming mostly sunny (15-25 pct). * Chance of Precip.........0 pct. * Chance of Thunder........0 pct. * Max Temperature..........87 to 97 degs. 24 hr Trend...........Up 2 to 5 degs. * Min Humidity.............8 to 14 pct. 24 hr Trend...........Up 3 to 6 pct. * Wind (20 ft/10-min avg)..West 10 to 15 mph. * 10000 ft MSL Wind........West 15 to 20 mph. * Mixing height............10203 ft AGL. * Transport winds..........West 15 to 16 knots. * Ventilation Category.....Excellent (163248 knot-ft). .Forecast days 3 through 7...... Winds in Days 3 through 5 are surface 20 ft/10-min avg .TUESDAY...Mostly clear. Lows 57 to 67. Highs 89 to 99. Northwest wind around 15 mph. Minimum Humidity 9 to 15 pct. .WEDNESDAY...Mostly clear. Lows 59 to 69. Highs 87 to 97. Northwest wind around 15 mph. Minimum Humidity 10 to 18 pct. .THURSDAY...Mostly clear. Lows 60 to 70. Highs 85 to 95. Northwest wind around 15 mph. Minimum Humidity 13 to 22 pct. .FRIDAY...Mostly clear. Lows 58 to 68. Highs 83 to 93. .SATURDAY...Mostly clear. Lows 58 to 68. Highs 81 to 91. NOTE TO USERS - ZONE 153 VENTILATION CATEGORY...MIXING HEIGHT AND TRANSPORT WINDS ARE BASED ON THE POINT OF PINES LOCATION (6040 MSL) $$ AZZ154-212215- Arizona Fire Weather Zone 154 Forest Woodlands FDRA including the Sky Islands of Southeast Arizona above 5500 feet-Coronado NF-TDC- 207 AM MST Sun Jun 21 2026 .TODAY... * Sky/Weather..............Mostly sunny (5-15 pct). * Chance of Precip.........0 pct. * Chance of Thunder........0 pct. * Max Temperature..........84 to 94 degs. 24 hr Trend...........Up 3 to 6 degs. * Min Humidity.............8 to 18 pct. 24 hr Trend...........Down 1 to 4 pct. * Wind (20 ft/10-min avg)..Southwest 10 to 15 mph. * 10000 ft MSL Wind........Southwest around 25 mph decreasing to around 15 mph in the afternoon. * Mixing height............10435 ft AGL. * Transport winds..........West 15 to 17 knots. * Ventilation Category.....Excellent (166960 knot-ft). .TONIGHT... * Sky/Weather..............Partly cloudy (25-35 pct). * Chance of Precip.........0 pct. * Chance of Thunder........0 pct. * Min Temperature..........58 to 68 degs. 24 hr Trend...........Little change. * Max Humidity.............14 to 24 pct. 24 hr Trend...........Down 2 to 5 pct. * Wind (20 ft/10-min avg)..West 10 to 15 mph. * 10000 ft MSL Wind........West 15 to 20 mph. .MONDAY... * Sky/Weather..............Partly cloudy (20-30 pct) then becoming mostly sunny (10-20 pct). * Chance of Precip.........0 pct. * Chance of Thunder........0 pct. * Max Temperature..........85 to 95 degs. 24 hr Trend...........Up 2 to 5 degs. * Min Humidity.............8 to 17 pct. 24 hr Trend...........Up 1 to 4 pct. * Wind (20 ft/10-min avg)..Light winds becoming west around 15 mph in the afternoon. * 10000 ft MSL Wind........West 5 to 10 mph. * Mixing height............12949 ft AGL. * Transport winds..........West 9 to 12 knots. * Ventilation Category.....Excellent (135964 knot-ft). .Forecast days 3 through 7...... Winds in Days 3 through 5 are surface 20 ft/10-min avg .TUESDAY...Mostly clear. Lows 62 to 72. Highs 87 to 97. Northwest wind around 20 mph. Minimum Humidity 9 to 19 pct. .WEDNESDAY...Mostly clear. Lows 63 to 73. Highs 87 to 97. Northwest wind around 20 mph. Minimum Humidity 12 to 22 pct. .THURSDAY...Partly cloudy. Slight chance of showers and thunderstorms. Lows 64 to 74. Highs 86 to 96. West wind around 15 mph. Minimum Humidity 14 to 24 pct. .FRIDAY...Mostly clear. Slight chance of showers and thunderstorms. Lows 62 to 72. Highs 83 to 93. .SATURDAY...Mostly clear. Slight chance of showers and thunderstorms. Lows 61 to 71. Highs 82 to 92. 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