Arizona weather forecast: Temperatures climbing across the state

Evening Weather Forecast - 9/29/25

We are not expecting stormy weather this week, and at the same time, we are expecting temperatures to warm up a bit.

PHOENIX - Last weekend brought heavy rain, flooding, hail, winds and cooler temperatures. However, drier air moved into Arizona Monday, leaving skies almost completely dry across the state.

Tonight:

A few showers are possible in the White Mountains Monday evening, but most of Arizona will be dry through the night.

Tomorrow:

Valley temperatures will fall into the low 70s by Tuesday morning and climb into the mid-90s Tuesday afternoon.

Later This Week:

We have a much drier week in store for the state, and with dew points dropping, the air will feel less humid.

The Valley will be dry and sunny all week. The only chances for rain will be in far northern AZ on Tuesday and Saturday. We will also see some breezier winds in the high country on Tuesday, and Friday through the weekend. Temperatures will gradually warm into the mid-90s and low 100s through Friday, before dropping back into the low to mid-90s over the weekend.

The high temperature is expected to climb to 96 degrees on Tuesday and Wednesday and 99 by Thursday and Friday. Morning low temperatures will remain in the low to middle 70s all week long.

You can always check the latest weather conditions by visiting the FOX 10 Phoenix weather page, or download the Free FOX 10 Weather app, which is available on Apple iOS and Android.

Scroll down this page for satellite and radar, day planner, records, current temperatures, 10-day forecast, forecast highs, and recent rainfall totals, plus live video feeds.

Driving in extreme temperatures

The Arizona Department of Transportation’s tips for driving in extreme temperatures include:

Have sun protection: In addition to an umbrella, take sunscreen and a wide-brimmed hat and wear loose-fitting, light-colored cotton clothing.

Fuel up: Keep your tank at three-quarters full. Running out of gas, especially in a remote location, is dangerous in extreme heat.

Hydrate: Take a cooler to keep extra drinking water cold, and consider adding several frozen bottles of water to use for cooling off or to thaw and drink if needed. Make sure everyone, including pets, stays hydrated.

Get help: If your vehicle breaks down in extreme heat, call for assistance right away to reduce wait time, and run the AC. If the AC isn’t working, roll down all windows.

Wait safely: If the temperature inside your vehicle becomes too hot, everyone, including pets, should exit carefully and seek out or create a shaded area as far away from the travel lanes as possible. Be careful walking on the road surface, which can be hot enough to burn skin. Keep your shoes on and try to keep your pets’ paws off the pavement. If you are stopped along the highway, raise the front hood and turn on hazard lights. Please keep in mind that parking in tall brush can start a fire.

Check your vehicle: You can help avoid breakdowns and blowouts by making sure your vehicle is in good operating condition. Check your air conditioner and coolant levels, top off any vital engine fluids and make sure your battery is up to par. Check your tire pressure, as the combination of under inflated tires and hot pavement can lead to a blowout.

MORE: https://azdot.gov/about/transportation-safety/severe-weather

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The following heat safety information was provided by the Scottsdale Fire Department:

What are Heat Emergencies?

Heat Cramps: Profuse sweating, fatigue, extreme thirst, muscle cramps

Heat Exhaustion: Headache, dizziness, weakness, nausea/vomit, Cool/moist skin

Heat Stroke: Elevated temp. +103degrees, confusion/irrational behavior, dry/hot skin, rapid shallow breathing, rapid weak pulse (shock), seizures, unconscious

What to do

Get person into shade or cool location
Cool person with cool, wet cloths (neck, groin, armpits, head) and fan body
Sip cool water if person is alert
For muscle cramps, massage muscles gently, but firmly until relaxed
*If symptoms worsen, call 911

What not to do

Do not give anything by mouth if person is vomiting, unable to swallow or unconscious
Do not underestimate the seriousness of a heat emergency
Prevention/Preparation for hike/exercise in heat