863
FPUS55 KTWC 220423
ZFPTWC
ZONE FORECAST PRODUCT FOR SOUTHEAST ARIZONA
NATIONAL WEATHER SERVICE TUCSON AZ
922 PM MST SAT MAR 21 2026
AZZ501-221400-
WESTERN PIMA COUNTY-
INCLUDING AJO AND ORGAN PIPE CACTUS N.M.
922 PM MST SAT MAR 21 2026
..EXTREME HEAT WARNING IN EFFECT UNTIL 8 PM MST SUNDAY
REST OF TONIGHT
MOSTLY CLEAR. LOWS 64 TO 70.
SUNDAY
PARTLY CLOUDY IN THE MORNING THEN BECOMING MOSTLY
SUNNY. HIGHS 96 TO 101.
SUNDAY NIGHT
PARTLY CLOUDY. LOWS 60 TO 66.
MONDAY
MOSTLY SUNNY. HIGHS 91 TO 96.
MONDAY NIGHT
MOSTLY CLEAR. LOWS 58 TO 64.
TUESDAY
SUNNY. HIGHS 94 TO 99.
TUESDAY NIGHT
CLEAR. LOWS 60 TO 66.
WEDNESDAY
SUNNY. HIGHS 98 TO 103.
WEDNESDAY NIGHT AND THURSDAY
CLEAR. LOWS 62 TO 68. HIGHS 99 TO
104.
THURSDAY NIGHT
MOSTLY CLEAR. LOWS 62 TO 68.
FRIDAY
PARTLY CLOUDY. HIGHS 98 TO 103.
FRIDAY NIGHT AND SATURDAY
MOSTLY CLOUDY. LOWS 64 TO 70. HIGHS
97 TO 102.
AZZ502-221400-
TOHONO O'ODHAM NATION-
INCLUDING SELLS
922 PM MST SAT MAR 21 2026
..EXTREME HEAT WARNING IN EFFECT UNTIL 8 PM MST SUNDAY
REST OF TONIGHT
MOSTLY CLEAR. LOWS 63 TO 71.
SUNDAY
MOSTLY SUNNY. HIGHS 95 TO 100.
SUNDAY NIGHT
PARTLY CLOUDY. LOWS 59 TO 65.
MONDAY
MOSTLY SUNNY. HIGHS 92 TO 97.
MONDAY NIGHT
MOSTLY CLEAR. LOWS 59 TO 65.
TUESDAY
SUNNY. HIGHS 94 TO 99.
TUESDAY NIGHT
CLEAR. LOWS 60 TO 66.
WEDNESDAY
SUNNY. HIGHS 96 TO 101.
WEDNESDAY NIGHT THROUGH THURSDAY NIGHT
CLEAR. LOWS 61 TO 68.
HIGHS 97 TO 102.
FRIDAY
PARTLY CLOUDY. HIGHS 96 TO 101.
FRIDAY NIGHT AND SATURDAY
MOSTLY CLOUDY. LOWS 64 TO 70. HIGHS
94 TO 99.
AZZ503-221400-
UPPER SANTA CRUZ RIVER VALLEY/ALTAR VALLEY-
INCLUDING NOGALES
922 PM MST SAT MAR 21 2026
..EXTREME HEAT WARNING IN EFFECT UNTIL 8 PM MST SUNDAY
REST OF TONIGHT
CLEAR. LOWS 56 TO 64.
SUNDAY
MOSTLY SUNNY. HIGHS 91 TO 97.
SUNDAY NIGHT
PARTLY CLOUDY. LOWS 53 TO 59.
MONDAY
MOSTLY SUNNY. HIGHS 89 TO 94.
MONDAY NIGHT
MOSTLY CLEAR. LOWS 53 TO 59.
TUESDAY
SUNNY. HIGHS 91 TO 96.
TUESDAY NIGHT
CLEAR. LOWS 54 TO 60.
WEDNESDAY
SUNNY. HIGHS 93 TO 98.
WEDNESDAY NIGHT AND THURSDAY
CLEAR. LOWS 55 TO 61. HIGHS 91 TO
97.
THURSDAY NIGHT
MOSTLY CLEAR. LOWS 56 TO 62.
FRIDAY
PARTLY CLOUDY. HIGHS 90 TO 96.
FRIDAY NIGHT AND SATURDAY
MOSTLY CLOUDY. LOWS 55 TO 63. HIGHS
88 TO 94.
AZZ504-221400-
TUCSON METRO AREA-
INCLUDING TUCSON, GREEN VALLEY, MARANA, AND VAIL
922 PM MST SAT MAR 21 2026
..EXTREME HEAT WARNING IN EFFECT UNTIL 8 PM MST SUNDAY
REST OF TONIGHT
MOSTLY CLEAR. LOWS 61 TO 67. WEST WIND 5 TO
10 MPH BECOMING SOUTH AFTER MIDNIGHT.
SUNDAY
MOSTLY SUNNY. HIGHS 94 TO 100. SOUTHEAST WIND AROUND
10 MPH BECOMING WEST IN THE AFTERNOON.
SUNDAY NIGHT
PARTLY CLOUDY. LOWS 58 TO 64. WEST WIND 5 TO
15 MPH BECOMING SOUTH AROUND 10 MPH AFTER MIDNIGHT.
MONDAY
MOSTLY SUNNY. HIGHS 91 TO 97. SOUTH WIND AROUND 10 MPH
BECOMING WEST IN THE AFTERNOON.
MONDAY NIGHT
MOSTLY CLEAR. LOWS 57 TO 63. WEST WIND 5 TO
10 MPH BECOMING SOUTH AFTER MIDNIGHT.
TUESDAY
SUNNY. HIGHS 92 TO 98.
TUESDAY NIGHT
CLEAR. LOWS 58 TO 64.
WEDNESDAY
SUNNY. HIGHS 94 TO 100.
WEDNESDAY NIGHT THROUGH THURSDAY NIGHT
CLEAR. LOWS 59 TO 66.
HIGHS 94 TO 100.
FRIDAY
MOSTLY SUNNY. HIGHS 93 TO 99.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS 60 TO 66.
SATURDAY
MOSTLY CLOUDY. HIGHS 91 TO 97.
AZZ505-221400-
SOUTH CENTRAL PINAL COUNTY-
INCLUDING PICACHO PEAK STATE PARK
922 PM MST SAT MAR 21 2026
..EXTREME HEAT WARNING IN EFFECT UNTIL 8 PM MST SUNDAY
REST OF TONIGHT
MOSTLY CLEAR. LOWS 61 TO 69.
SUNDAY
MOSTLY SUNNY. HIGHS 95 TO 100.
SUNDAY NIGHT
PARTLY CLOUDY. LOWS 59 TO 67.
MONDAY
MOSTLY SUNNY. HIGHS 93 TO 98.
MONDAY NIGHT
MOSTLY CLEAR. LOWS 58 TO 64.
TUESDAY
SUNNY. HIGHS 93 TO 98.
TUESDAY NIGHT
CLEAR. LOWS 59 TO 65.
WEDNESDAY
SUNNY. HIGHS 96 TO 101.
WEDNESDAY NIGHT THROUGH THURSDAY NIGHT
CLEAR. LOWS 60 TO 66.
HIGHS 96 TO 101.
FRIDAY
MOSTLY SUNNY. HIGHS 96 TO 101.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS 62 TO 68.
SATURDAY
MOSTLY CLOUDY. HIGHS 93 TO 98.
AZZ506-221400-
SOUTHEAST PINAL COUNTY-
INCLUDING MAMMOTH AND ORACLE
922 PM MST SAT MAR 21 2026
..EXTREME HEAT WARNING IN EFFECT UNTIL 8 PM MST SUNDAY
REST OF TONIGHT
MOSTLY CLEAR. LOWS 63 TO 68.
SUNDAY
MOSTLY SUNNY. HIGHS 91 TO 97.
SUNDAY NIGHT
PARTLY CLOUDY. LOWS 61 TO 66.
MONDAY
MOSTLY SUNNY. HIGHS 89 TO 95.
MONDAY NIGHT
MOSTLY CLEAR. LOWS 59 TO 64.
TUESDAY
SUNNY. HIGHS 90 TO 96.
TUESDAY NIGHT
CLEAR. LOWS 60 TO 65.
WEDNESDAY
SUNNY. HIGHS 92 TO 98.
WEDNESDAY NIGHT THROUGH THURSDAY NIGHT
CLEAR. LOWS 60 TO 66.
HIGHS 92 TO 98.
FRIDAY
MOSTLY SUNNY. HIGHS 91 TO 97.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS 61 TO 66.
SATURDAY
MOSTLY CLOUDY. HIGHS 88 TO 94.
AZZ507-221400-
UPPER SAN PEDRO RIVER VALLEY-
INCLUDING SIERRA VISTA AND BENSON
922 PM MST SAT MAR 21 2026
..EXTREME HEAT WARNING IN EFFECT UNTIL 8 PM MST SUNDAY
REST OF TONIGHT
CLEAR. LOWS 54 TO 62.
SUNDAY
MOSTLY SUNNY. HIGHS 90 TO 95.
SUNDAY NIGHT
PARTLY CLOUDY. LOWS 53 TO 59.
MONDAY
MOSTLY SUNNY. HIGHS 87 TO 92.
MONDAY NIGHT
MOSTLY CLEAR. LOWS 51 TO 57.
TUESDAY
SUNNY. HIGHS 89 TO 94.
TUESDAY NIGHT
CLEAR. LOWS 52 TO 58.
WEDNESDAY
SUNNY. HIGHS 91 TO 96.
WEDNESDAY NIGHT AND THURSDAY
CLEAR. LOWS 53 TO 59. HIGHS 90 TO
95.
THURSDAY NIGHT AND FRIDAY
MOSTLY CLEAR. LOWS 54 TO 60. HIGHS
88 TO 93.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS 53 TO 59.
SATURDAY
MOSTLY CLOUDY. HIGHS 85 TO 90.
AZZ508-221400-
EASTERN COCHISE COUNTY BELOW 5000 FEET-
INCLUDING WILLCOX AND DOUGLAS
922 PM MST SAT MAR 21 2026
..EXTREME HEAT WARNING IN EFFECT UNTIL 8 PM MST SUNDAY
REST OF TONIGHT
CLEAR. LOWS 54 TO 60.
SUNDAY
MOSTLY SUNNY. HIGHS 90 TO 95.
SUNDAY NIGHT
PARTLY CLOUDY. LOWS 53 TO 59.
MONDAY
MOSTLY SUNNY. HIGHS 88 TO 93.
MONDAY NIGHT
MOSTLY CLEAR. LOWS 51 TO 57.
TUESDAY
SUNNY. HIGHS 89 TO 94.
TUESDAY NIGHT
CLEAR. LOWS 52 TO 58.
WEDNESDAY
SUNNY. HIGHS 91 TO 96.
WEDNESDAY NIGHT AND THURSDAY
CLEAR. LOWS 53 TO 59. HIGHS 90 TO
95.
THURSDAY NIGHT AND FRIDAY
MOSTLY CLEAR. LOWS 53 TO 59. HIGHS
87 TO 92.
FRIDAY NIGHT AND SATURDAY
MOSTLY CLOUDY. LOWS 52 TO 58. HIGHS
84 TO 89.
AZZ509-221400-
UPPER GILA RIVER VALLEY-
INCLUDING CLIFTON AND SAFFORD
922 PM MST SAT MAR 21 2026
..EXTREME HEAT WARNING IN EFFECT UNTIL 8 PM MST SUNDAY
REST OF TONIGHT
MOSTLY CLEAR. LOWS 55 TO 63.
SUNDAY
MOSTLY SUNNY. HIGHS 88 TO 94.
SUNDAY NIGHT
PARTLY CLOUDY. LOWS 55 TO 61.
MONDAY
MOSTLY SUNNY. HIGHS 87 TO 93.
MONDAY NIGHT
MOSTLY CLEAR. LOWS 53 TO 59.
TUESDAY
SUNNY. HIGHS 88 TO 94.
TUESDAY NIGHT
CLEAR. LOWS 55 TO 61.
WEDNESDAY
SUNNY. HIGHS 90 TO 96.
WEDNESDAY NIGHT THROUGH THURSDAY NIGHT
CLEAR. LOWS 55 TO 61.
HIGHS 90 TO 96.
FRIDAY
MOSTLY SUNNY. HIGHS 87 TO 93.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS 55 TO 61.
SATURDAY
MOSTLY CLOUDY. HIGHS 83 TO 89.
AZZ510-221400-
WHITE MOUNTAINS OF GRAHAM AND GREENLEE COUNTIES-
INCLUDING HANNAGAN MEADOW
922 PM MST SAT MAR 21 2026
REST OF TONIGHT
MOSTLY CLEAR. LOWS 49 TO 61.
SUNDAY
MOSTLY SUNNY IN THE MORNING THEN BECOMING PARTLY
CLOUDY. HIGHS 77 TO 85.
SUNDAY NIGHT
MOSTLY CLOUDY IN THE EVENING THEN BECOMING PARTLY
CLOUDY. LOWS 49 TO 59.
MONDAY
MOSTLY SUNNY. HIGHS 75 TO 83.
MONDAY NIGHT
MOSTLY CLEAR. LOWS 46 TO 56.
TUESDAY
SUNNY. HIGHS 77 TO 85.
TUESDAY NIGHT
CLEAR. LOWS 49 TO 59.
WEDNESDAY
SUNNY. HIGHS 80 TO 88.
WEDNESDAY NIGHT THROUGH THURSDAY NIGHT
CLEAR. LOWS 48 TO 58.
HIGHS 79 TO 87.
FRIDAY
MOSTLY SUNNY. HIGHS 77 TO 85.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS 47 TO 57.
SATURDAY
MOSTLY CLOUDY. HIGHS 73 TO 81.
AZZ511-221400-
GALIURO AND PINALENO MOUNTAINS-
INCLUDING MOUNT GRAHAM
922 PM MST SAT MAR 21 2026
REST OF TONIGHT
MOSTLY CLEAR. LOWS 58 TO 64.
SUNDAY
MOSTLY SUNNY IN THE MORNING THEN BECOMING PARTLY
CLOUDY. HIGHS 77 TO 87.
SUNDAY NIGHT
PARTLY CLOUDY. LOWS 55 TO 61.
MONDAY
MOSTLY SUNNY. HIGHS 75 TO 85.
MONDAY NIGHT
MOSTLY CLEAR. LOWS 54 TO 60.
TUESDAY
SUNNY. HIGHS 76 TO 86.
TUESDAY NIGHT
CLEAR. LOWS 54 TO 60.
WEDNESDAY
SUNNY. HIGHS 79 TO 89.
WEDNESDAY NIGHT THROUGH THURSDAY NIGHT
CLEAR. LOWS 55 TO 61.
HIGHS 78 TO 88.
FRIDAY
MOSTLY SUNNY. HIGHS 76 TO 86.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS 54 TO 60.
SATURDAY
MOSTLY CLOUDY. HIGHS 72 TO 82.
AZZ512-221400-
CHIRICAHUA MOUNTAINS-
INCLUDING CHIRICAHUA N.M.
922 PM MST SAT MAR 21 2026
REST OF TONIGHT
CLEAR. LOWS 56 TO 62.
SUNDAY
MOSTLY SUNNY. HIGHS 81 TO 89.
SUNDAY NIGHT
PARTLY CLOUDY. LOWS 54 TO 60.
MONDAY
MOSTLY SUNNY. HIGHS 79 TO 87.
MONDAY NIGHT
MOSTLY CLEAR. LOWS 52 TO 58.
TUESDAY
SUNNY. HIGHS 80 TO 88.
TUESDAY NIGHT
CLEAR. LOWS 53 TO 59.
WEDNESDAY
SUNNY. HIGHS 82 TO 90.
WEDNESDAY NIGHT AND THURSDAY
CLEAR. LOWS 53 TO 59. HIGHS 82 TO
90.
THURSDAY NIGHT AND FRIDAY
MOSTLY CLEAR. LOWS 54 TO 60. HIGHS
78 TO 86.
FRIDAY NIGHT AND SATURDAY
MOSTLY CLOUDY. LOWS 52 TO 58. HIGHS
75 TO 83.
AZZ513-221400-
DRAGOON AND MULE AND HUACHUCA AND SANTA RITA MOUNTAINS-
INCLUDING BISBEE, CANELO HILLS, AND MADERA CANYON
922 PM MST SAT MAR 21 2026
REST OF TONIGHT
CLEAR. LOWS 57 TO 63.
SUNDAY
MOSTLY SUNNY. HIGHS 84 TO 90.
SUNDAY NIGHT
PARTLY CLOUDY. LOWS 54 TO 60.
MONDAY
MOSTLY SUNNY. HIGHS 82 TO 88.
MONDAY NIGHT
MOSTLY CLEAR. LOWS 53 TO 59.
TUESDAY
SUNNY. HIGHS 83 TO 89.
TUESDAY NIGHT
CLEAR. LOWS 54 TO 59.
WEDNESDAY
SUNNY. HIGHS 85 TO 91.
WEDNESDAY NIGHT AND THURSDAY
CLEAR. LOWS 55 TO 60. HIGHS 85 TO
91.
THURSDAY NIGHT AND FRIDAY
MOSTLY CLEAR. LOWS 56 TO 61. HIGHS
83 TO 89.
FRIDAY NIGHT AND SATURDAY
MOSTLY CLOUDY. LOWS 55 TO 60. HIGHS
79 TO 87.
AZZ514-221400-
CATALINA AND RINCON MOUNTAINS-
INCLUDING MOUNT LEMMON AND SUMMERHAVEN
922 PM MST SAT MAR 21 2026
REST OF TONIGHT
MOSTLY CLEAR. LOWS 60 TO 66.
SUNDAY
MOSTLY SUNNY. HIGHS 77 TO 87.
SUNDAY NIGHT
PARTLY CLOUDY. LOWS 57 TO 63.
MONDAY
MOSTLY SUNNY. HIGHS 74 TO 84.
MONDAY NIGHT
CLEAR. LOWS 55 TO 61.
TUESDAY
SUNNY. HIGHS 76 TO 86.
TUESDAY NIGHT
CLEAR. LOWS 55 TO 61.
WEDNESDAY
SUNNY. HIGHS 78 TO 88.
WEDNESDAY NIGHT THROUGH THURSDAY NIGHT
CLEAR. LOWS 56 TO 63.
HIGHS 78 TO 88.
FRIDAY
MOSTLY SUNNY. HIGHS 76 TO 86.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS 57 TO 63.
SATURDAY
MOSTLY CLOUDY. HIGHS 73 TO 83.
AZZ515-221400-
BABOQUIVARI MOUNTAINS-
INCLUDING KITT PEAK
922 PM MST SAT MAR 21 2026
REST OF TONIGHT
MOSTLY CLEAR. LOWS 64 TO 69.
SUNDAY
MOSTLY SUNNY. HIGHS 85 TO 91.
SUNDAY NIGHT
PARTLY CLOUDY. LOWS 59 TO 64.
MONDAY
MOSTLY SUNNY. HIGHS 82 TO 88.
MONDAY NIGHT
MOSTLY CLEAR. LOWS 58 TO 63.
TUESDAY
SUNNY. HIGHS 84 TO 90.
TUESDAY NIGHT
CLEAR. LOWS 59 TO 64.
WEDNESDAY
SUNNY. HIGHS 86 TO 92.
WEDNESDAY NIGHT THROUGH THURSDAY NIGHT
CLEAR. LOWS 61 TO 66.
HIGHS 86 TO 92.
FRIDAY
PARTLY CLOUDY. HIGHS 85 TO 91.
FRIDAY NIGHT AND SATURDAY
MOSTLY CLOUDY. LOWS 63 TO 68. HIGHS
84 TO 90.
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