Arizona weather forecast: Highs creeping toward triple digits in Phoenix

Rain chances expected overnight across Arizona

A storm system moving into the state will bring slight chances of rain to the Valley. The high country will experience a wet Monday.

PHOENIX - A slow warming is bringing us to the low triple digits by the end of the weekend.

Sunday:

Sunday was a beautiful day, with a high temperature of 100 degrees in Phoenix. Temperatures were only slightly warmer than Saturday across the state.

Moisture is moving into Arizona, ahead of a low pressure system which will cross the state Monday. The surge of moisture will bring shower and thunderstorm chances to Arizona tonight through Memorial Day.

Storms near Tucson are moving northward this evening, and the Valley may see hit or miss showers, gusty wind and blowing dust by around 8 p.m. There will be a chance for isolated showers in the Valley overnight through early Monday morning. The Valley will then see clearer and drier skies for the rest of Memorial Day.

Showers will also move into the mountains of eastern Arizona, the Mogollon Rim and the Colorado Plateau tonight.

Memorial Day and Beyond:

The scattered showers will continue through midday Monday, and more widespread thunderstorms will develop midday Monday through the evening. Lightning, strong wind gusts and small hail will be possible with the thunderstorms.

Temperatures will cool down in northern Arizona on Monday, thanks to the clouds and rain. The Valley will see another warm day, with high temperatures around 98 degrees.

The low pressure system will spin out of the state Tuesday, and showers and thunderstorms will remain possible in far north and northeast Arizona Monday night through Tuesday.

Behind that system, temperatures will slump back to the 90s through next week and potentially the following weekend.

Past Few Days:

Saturday was a gorgeous day across the state. Skies were sunny and temperatures were near-normal. Phoenix reached a high of 99 degrees. The winds were a bit breezy in northwest Arizona, but calmed overnight.

Brief warm up arriving across Arizona ahead of Memorial Day

Saturday brought temps of 97 degrees in the Valley, before triple digits return Sunday. After the brief warm up, Arizonans can expect possible rain this Memorial Day.

The high climbed to 98 degrees on Friday afternoon, which is perfectly average for the end of May.

Warm Memorial Day weekend could lead us to wet weather

FOX 10's Cory McCloskey has the details on our latest weather pattern that could bring some rain following the Memorial Day weekend.

The warmer temperatures are accompanied by a few passing clouds over northern Arizona, and sunshine in the Valley. Winds remained light to low-end breezy in northern Arizona, too.

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.