Tucson, Arizona Weather:
Active Weather Warnings
Friday, March 20, 2026
Hot Day
Day 100°
Night 72°
Precipitation 0 %
Wind 6 mph
UV Index (0 - 11+) 7
Weather Forecast History
Last Year's Weather on This Day (March 20, 2025)
Sunny Weather

Day

81°

Night

46°

Wind

8 mph

UV Index

7

Precipitation

0 %

Weather Alerts and Warnings for

Severe Future Likely

Extreme Heat Watch

Extreme Heat Watch issued March 16 at 12:11AM MST until March 22 at 8:00PM MST by NWS Tucson AZ
Mar 19, 12:00 PM Mar 22, 9:00 PM
WHAT: Dangerously hot conditions with high temperatures 100 to 108
possible. The hottest days are currently expected to be Friday
March 20 and Saturday March 21.

WHERE: South Central Pinal County, Southeast Pinal County, Tohono
O'odham Nation, Tucson Metro Area, and Western Pima County.

WHEN: From Thursday morning through Sunday evening.

IMPACTS: Heat related illnesses increase significantly during
extreme heat events.

ADDITIONAL DETAILS: Visitors, seasonal residents and other people
not typically accustomed to or acclimated to extreme heat are
especially urged to take precautions during the hottest hours of
the day and limit outdoor activity.
+ Read More
Do not leave young children and pets in unattended vehicles. Car interiors will reach lethal temperatures in a matter of minutes. Take extra precautions if you work or spend time outside. When possible, reschedule strenuous activities to early morning or evening. Know the signs and symptoms of heat exhaustion and heat stroke. Wear lightweight and loose fitting clothing when possible and drink plenty of water. To reduce risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency! Call 9 1 1.
Updated: Mar 16, 10:46 AM Source: NWS Alert
Severe Expected Likely

Extreme Heat Warning

Extreme Heat Warning issued March 18 at 1:01PM MST until March 22 at 8:00PM MST by NWS Tucson AZ
Mar 19, 12:00 PM Mar 22, 9:00 PM
WHAT: Dangerously hot conditions with high temperatures of 100 to
108 degrees expected. The hottest days are currently expected to be
Friday March 20 and Saturday March 21.

WHERE: South Central Pinal County, Southeast Pinal County, Tohono
O'odham Nation, Tucson Metro Area, and Western Pima County.

WHEN: From 11 AM Thursday to 8 PM MST Sunday.

IMPACTS: Heat related illnesses increase significantly during
extreme heat events.
+ Read More
Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Do not leave young children and pets in unattended vehicles. Car interiors will reach lethal temperatures in a matter of minutes. To reduce risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency! Call 9 1 1. Take extra precautions if you work or spend time outside. When possible, reschedule strenuous activities to early morning or evening. Know the signs and symptoms of heat exhaustion and heat stroke. Wear lightweight and loose fitting clothing when possible and drink plenty of water.
Updated: Mar 19, 12:09 AM Source: NWS Alert