Arizona weather forecast: Warm start to the week in Phoenix
Evening Weather Forecast - 4/20/26
Monday hit a high of 96 in the Valley, making for a warm start to the week. FOX 10's Erica Horvatin has more on when breezy weather will hit the state this week.
PHOENIX - Happy Monday! It was a warm start to the week with a pattern change by mid-week.
Today:
Monday was a warm, sunny day in the Valley. High temperatures climbed to 96 degrees in Phoenix. In the high country, isolated showers popped up over the Colorado Plateau during the afternoon.
Showers and thunderstorms will end by late this evening, and the night will be dry. The Valley will cool to 68 degrees tonight.
Morning Weather Forecast - 4/20/26
It'll be a warm start to the work week in Phoenix with a high in the mid-90s.
Tuesday:
Clouds will move into Arizona overnight, and skies will be cloudier Tuesday morning. It will be another unseasonably warm day, with a high of 94 degrees. The afternoon will be sunnier, and winds will be gusty, up to 25 mph.
In the high country, winds will gust up to around 30 mph during the afternoon on Tuesday. Northwest Arizona will be even windier, with southwesterly wind gusts up to 45 mph. A wind advisory will be in effect from 2 p.m. through 11 p.m. for Mohave County, and the state line from Bullhead City up to Lake Mead.
Later This Week:
Wednesday will be a windier day for the rest of northern Arizona, with wind gusts up to 50 mph in the high country. Temperatures will cool down to near-normal levels Wednesday through next week. The Valley will see highs in the mid-upper 80s.
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.
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.
Know your limitations
- Hydrate (begins day prior to hike/exercise, hour before hike, during and after).
- Wear proper clothing, lightweight and light color, protect head, proper shoes.
- Always carry a cell phone and best to hike with company.
- Always tell someone where you are hiking and when to plan to return.
Preventing heat exhaustion/heat stroke
The Arizona Department of Health Services stated the following precautions can be taken to prevent heat exhaustion or heat stroke:
- Stay in air-conditioned buildings.
- Find a cooling center/hydration station.
- Limit outdoor activity during the hottest part of the day (mid-day).
- Check on at-risk friends, family, and neighbors at least twice a day.
- Drink water before, during, and after working or exercising outside.
- Check the UV Index.
- Check the heat risk map.
Road Conditions
- Call 511 anywhere in Arizona or 1-888-411-ROAD (7623)
The Source: Information for this article was gathered by the FOX 10 Weather Experts.