Phoenix, Arizona – Arizona’s desert heat will push Phoenix toward 110 degrees today before thunderstorms threaten a sharp afternoon weather change.
According to the National Weather Service, Phoenix could experience a heat index as high as 113 degrees. An Extreme Heat Warning remains posted until 8 p.m.
An Air Quality Alert also remains in effect through 8 p.m. A Flood Watch begins at 5 p.m. and continues until 5 a.m. Sunday.
Phoenix Sky Harbor International Airport reported 97 degrees at 7:35 a.m. Humidity stood at 28%, offering little relief from the building heat.
Storm chances reach 20% after 1 p.m. Drivers on I-10 and I-17 should watch for sudden downpours and rapidly changing visibility.
Keep water nearby and limit strenuous outdoor activity during the hottest hours. Never leave children or pets inside parked vehicles.
The weather turns more unsettled after the evening commute. Thunderstorm chances rise to 40%, while temperatures eventually fall toward 86 degrees.
Sunday remains hot at 105 degrees, but storm chances reach 30% before 3 p.m. Showers become likely afterward, with a 60% chance Sunday night.
Monday brings another 50% thunderstorm chance and a high near 100. Showers become likely Monday evening, with precipitation chances reaching 60%.
The Weather Prediction Center highlights excessive-rain concerns across parts of the Southwest through Monday. Localized flash flooding can develop rapidly on roads and normally dry washes.
No specific tornado probability appears in the supplied Phoenix data. Residents should still monitor warnings because stronger thunderstorms can develop quickly during monsoon activity.
Tuesday turns sunny and reaches 100 degrees. A 20% storm chance returns after 11 p.m.
Wednesday brings sunshine and a high near 103, extending the summer heat.
Warnings and watches may change as storms develop. Check alerts before driving through flood-prone areas, and never enter a flooded roadway.
Seeing storms build around Phoenix? Tell us what conditions look like where you are.
Five-Day Weather Outlook for Phoenix, Arizona
- Today: 110°F; 20% thunderstorm chance after 1 p.m.; heat index up to 113°F.
- Sunday: 105°F; 30% storm chance before 3 p.m.; 60% chance Sunday night.
- Monday: 100°F; 50% thunderstorm chance; 60% chance Monday night.
- Tuesday: 100°F; sunny; 20% storm chance after 11 p.m.
- Wednesday: 103°F; sunny.
