Maricopa County Weather Forecast
Maricopa County weather: 94°F, clear. Hourly forecast, 14-day outlook, UV, air quality and the best time to visit.
Risk assessment for Maricopa County
Derived from the current forecast window - not an official warning.
Peak gusts of 25 mph and 0 thunderstorm days in the next 16 days.
Wettest single day forecast at 0,3 in, 0,5 in across the window. Flash flooding risk rises sharply above 50 mm in a day.
Active alerts for Maricopa County
Extreme Heat Warning issued August 20 at 11:06PM MST until August 28 at 8:00PM MST by NWS Phoenix AZ
Issued by NWS Phoenix AZ
Air Quality Alert issued August 20 at 9:09AM MST by NWS Phoenix AZ
Issued by NWS Phoenix AZ
16-day forecast for Maricopa County
Daily highs and lows, precipitation and UV.
| Day | Conditions | High / Low | Precip | Wind | UV |
|---|---|---|---|---|---|
| Fri, Aug 21 | ☁️ Overcast | 113° / 86° | 1% | 11 mph | 8 |
| Sat, Aug 22 | 🌦️ Light drizzle | 114° / 85° | 2% · 0,0 in | 10 mph | 8 |
| Sun, Aug 23 | ☁️ Overcast | 112° / 97° | 9% | 13 mph | 8 |
| Mon, Aug 24 | ☁️ Overcast | 107° / 96° | 3% | 15 mph | 7 |
| Tue, Aug 25 | ☁️ Overcast | 113° / 96° | 0% | 16 mph | 8 |
| Wed, Aug 26 | ⛅ Partly cloudy | 110° / 96° | 1% | 16 mph | 8 |
| Thu, Aug 27 | 🌤️ Mainly clear | 111° / 96° | 1% | 10 mph | 8 |
| Fri, Aug 28 | ⛅ Partly cloudy | 111° / 95° | 2% | 24 mph | 8 |
| Sat, Aug 29 | ☁️ Overcast | 111° / 94° | 4% | 21 mph | 8 |
| Sun, Aug 30 | ☁️ Overcast | 111° / 98° | 3% | 15 mph | 8 |
| Mon, Aug 31 | 🌦️ Light drizzle | 108° / 90° | 24% · 0,0 in | 16 mph | 8 |
| Tue, Sep 1 | 🌦️ Drizzle | 106° / 91° | 29% · 0,1 in | 16 mph | 8 |
| Wed, Sep 2 | 🌧️ Heavy drizzle | 103° / 89° | 23% · 0,3 in | 9 mph | 8 |
| Thu, Sep 3 | ☁️ Overcast | 98° / 89° | 23% | 13 mph | 6 |
| Fri, Sep 4 | 🌦️ Light drizzle | 101° / 88° | 26% · 0,0 in | 11 mph | 7 |
| Sat, Sep 5 | ☀️ Clear sky | -- / -- | 26% | -- | — |
What this means for Maricopa County
Today is slightly warmer than average for August. The forecast high of 113°F is 6.5°F above the 107°F typical for this month.
Rain is very unlikely today - plans do not need a backup.
No weather-related travel disruption is expected today. Roads and airports should run normally.
Northern Hemisphere, so peak summer falls in June to August.
The gap between the warmest and coldest month averages 75°F.
See the Maricopa County forecast by time range
Maricopa County weather - more answers
Explore Maricopa County
Every topic we hold for this place, and the same topic for the places around it.
Weather for related places
Frequently asked questions
Where is Maricopa County?
Maricopa County is a county in Arizona. Its coordinates are 33.4484, -112.074. It lies in North America.
What is the weather like in Maricopa County right now?
It is currently 94°F (35°C) with clear. Humidity is 33% and wind is 5 mph.
When is the best time to visit Maricopa County?
February, March, April, May and November offer the most comfortable conditions in Maricopa County, which has a hot and arid climate. July, August and September are usually the hardest months for outdoor plans.
What time zone is Maricopa County in?
Maricopa County observes America/Phoenix (UTC-07:00). The local time is 12:11 AM.
How many people live in Maricopa County?
Maricopa County has a population of approximately 4.5 million.
What is the nearest airport to Maricopa County?
The closest airports are Phoenix Sky Harbor International Airport (PHX), 4 mi away, Harry Reid International Airport (LAS), 252 mi away and San Diego International Airport (SAN), 300 mi away.
What are the top things to do in Maricopa County?
Popular options include Saguaro National Park, Slide Rock State Park, Petrified Forest National Park, Grand Canyon (UNESCO World Heritage Site), Colorado River and Grand Canyon National Park.
Related articles
Data sources and methodology
| Place data | USPOTUS Atlas dataset (us-counties) - coordinates, hierarchy and facts. |
|---|---|
| Forecast and observations | Open-Meteo (ECMWF and national models). |
| Air quality and pollen | Copernicus CAMS via Open-Meteo. US AQI scale. |
| Climate averages | ERA5 reanalysis via the Open-Meteo archive, aggregated over 3 years. |
| Official alerts | US National Weather Service. |
| Method | Scores, comparisons and advice on this page are computed from the inputs above. Distances are straight-line. Nothing is estimated where data is missing - the block is simply not shown. |
Last updated August 21, 2026 at 12:11 AM local time. Live blocks refresh every 15 minutes; climate averages monthly.
