Mesa & Usery Mountain
Warren LeMay, CC BY-SA 2.0, via Wikimedia Commons
Today’s Forecast:
☀
108°F
Current Temperature
Clear
⚠️
Air Quality Alert
Air Quality Alert issued July 23 at 9:15AM MST by NWS Phoenix AZ (Expires: July 24, 2026 11:00 pm)
Show Alert Details & Instructions
Description:
AQAPSR
The Arizona Department of Environmental Quality (ADEQ) has extended
an Ozone High Pollution Advisory for the Phoenix Metro Area through
Friday.
This means that forecast weather conditions combined with existing
ozone levels are expected to result in local maximum 8-hour ozone
concentrations that pose a health risk. Adverse health effects
increase as air quality deteriorates.
Ozone is an air contaminant which can cause breathing difficulties
for children, older adults, as well as persons with respiratory
problems. A decrease in physical activity is recommended.
You are urged to car pool, telecommute or use mass transit.
The use of gasoline-powered equipment should be reduced or done late
in the day.
For details on this High Pollution Advisory, visit the ADEQ internet
site at www.azdeq.gov/forecast/phoenix or call 602-771-2300.
⚠️
Extreme Heat Warning
Extreme Heat Warning issued July 23 at 12:18AM MST until July 27 at 8:00PM MST by NWS Phoenix AZ (Expires: July 27, 2026 10:00 pm)
Show Alert Details & Instructions
Description:
* WHAT...Dangerously hot conditions. Afternoon temperatures 105 to
117 degrees. Major Heat Risk.
* WHERE...Portions of South-central Arizona.
* WHEN...From 10 AM this morning to 8 PM MST Monday.
* IMPACTS...Heat related illnesses increase significantly during
extreme heat events. Overexposure can cause heat cramps and heat
exhaustion to develop and, without intervention, can lead to heat
stroke.
* ADDITIONAL DETAILS...In Maricopa County, Call 2-1-1 to find a free
cooling center, transportation, water and more.
Instructions:
An Extreme Heat Warning means that a period of very hot temperatures,
even by local standards, will occur. Actions should be taken to
lessen the impact of the extreme heat.
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.
Public cooling shelters are available in some areas. Consult county
officials for more details.
⚠️
Air Quality Alert
Air Quality Alert issued July 22 at 8:53AM MST by NWS Phoenix AZ (Expires: July 23, 2026 11:00 pm)
Show Alert Details & Instructions
Description:
AQAPSR
The Arizona Department of Environmental Quality (ADEQ) has issued an
Ozone High Pollution Advisory for the Phoenix Metro Area on
Thursday.
This means that forecast weather conditions combined with existing
ozone levels are expected to result in local maximum 8-hour ozone
concentrations that pose a health risk. Adverse health effects
increase as air quality deteriorates.
Ozone is an air contaminant which can cause breathing difficulties
for children, older adults, as well as persons with respiratory
problems. A decrease in physical activity is recommended.
You are urged to car pool, telecommute or use mass transit.
The use of gasoline-powered equipment should be reduced or done late
in the day.
For details on this High Pollution Advisory, visit the ADEQ internet
site at www.azdeq.gov/forecast/phoenix or call 602-771-2300.
Today:Sunny, with a high near 107. South southwest wind around 5 mph.
Tonight:Mostly clear. Low around 86, with temperatures rising to around 88 overnight. Northeast wind around 5 mph.
Friday:Sunny, with a high near 110. Heat index values as high as 110. South southwest wind around 5 mph.
Today’s Report:
Hiking
Not Recommended
6
/100
Not Recommended for hiking. High near 107°F. Low rain risk (2%). Extreme heat (high near 107°F). Temperatures outside comfort limits (107°F).
- Temp: Unfavorable weather factor
- Rain: Favorable conditions
- Wind: Favorable conditions
- Heat: Unfavorable weather factor
- Thunderstorm: Favorable conditions
- Alert: Unfavorable weather factor
⚠️ Active weather alerts affect this activity!
Tomorrow's Outlook:
Not Recommended
6/100
Biking
Not Recommended
6
/100
Not Recommended for biking. High near 107°F. Low rain risk (2%). Extreme heat (high near 107°F). Temperatures outside comfort limits (107°F).
- Temp: Unfavorable weather factor
- Rain: Favorable conditions
- Wind: Favorable conditions
- Heat: Unfavorable weather factor
- Thunderstorm: Favorable conditions
- Alert: Unfavorable weather factor
⚠️ Active weather alerts affect this activity!
Tomorrow's Outlook:
Not Recommended
6/100
Camping
Not Recommended
6
/100
Not Recommended for camping. High near 107°F. Low rain risk (2%). Extreme heat (high near 107°F). Temperatures outside comfort limits (107°F).
- Temp: Unfavorable weather factor
- Rain: Favorable conditions
- Wind: Favorable conditions
- Heat: Unfavorable weather factor
- Thunderstorm: Favorable conditions
- Alert: Unfavorable weather factor
⚠️ Active weather alerts affect this activity!
Tomorrow's Outlook:
Not Recommended
6/100
About Mesa
Mesa & Usery Mountain is an East Valley desert planning page for Usery Mountain Regional Park, desert trails, campgrounds, bike routes, Salt River access, and family outdoor time.
Make the Most of a Mesa & Usery Mountain Day
Use early starts and short loops during heat, and watch for storms before choosing washes, desert roads, or exposed trail systems. This page keeps East Valley outdoor planning broader than any single trailhead.
Weather Tips for Mesa & Usery Mountain
- Extreme heat, sun exposure, limited shade, dust, lightning, flash flooding in washes, and campground wind can all shape the day.
- In warm seasons, start early, shorten exposed routes, and carry more water than a casual city forecast might suggest.
- For campground days, check overnight lows, fire restrictions, storm timing, and how quickly shelter is available.
- Never treat dry washes or canyon bottoms as safe during nearby storms because runoff can arrive from miles away.
Nearby Towns and Areas
This page is meant to cover a roughly 25-mile outdoor-planning area around Mesa & Usery Mountain, including Mesa, Usery Mountain Regional Park, nearby Salt River access points, Gilbert, and the East Valley edge of Tonto National Forest. It can also be useful when planning outdoor time near:
- Usery Mountain Regional Park
- Salt River access
- Tonto National Forest edge
- Gilbert
- Apache Junction approaches
- Las Sendas area
- Red Mountain area
Plan Around the Conditions
Use the forecast to choose the best version of Mesa & Usery Mountain rather than forcing one itinerary. Match heat, sun exposure, wind, storm timing, water conditions, trail surfaces, fire restrictions, elevation, and road conditions to the activity that gives your group the most comfortable day.