Maricopa County Weather Forecast
Maricopa County weather: 78°F, clear. Hourly forecast, 14-day outlook, UV, air quality and the best time to visit.
Will it rain in Maricopa County?
No - rain is unlikely in Maricopa County today.
Rain is very unlikely today - plans do not need a backup.
Over the next 7 days, about 0,0 in of precipitation is forecast.
The next 7 days look unusually dry - roughly 0% of a normal September week (0,0 in against 0,4 in).
16-day forecast for Maricopa County
Daily highs and lows, precipitation and UV.
| Day | Conditions | High / Low | Precip | Wind | UV |
|---|---|---|---|---|---|
| Wed, Sep 30 | ⛅ Partly cloudy | 85° / 67° | 3% | 6 mph | 7 |
| Thu, Oct 1 | ☀️ Clear sky | 96° / 67° | 0% | 9 mph | 7 |
| Fri, Oct 2 | ☀️ Clear sky | 95° / 71° | 1% | 17 mph | 7 |
| Sat, Oct 3 | ☀️ Clear sky | 95° / 82° | 0% | 18 mph | 7 |
| Sun, Oct 4 | ☀️ Clear sky | 98° / 83° | 0% | 16 mph | 7 |
| Mon, Oct 5 | 🌤️ Mainly clear | 97° / 85° | 1% | 12 mph | 7 |
| Tue, Oct 6 | 🌤️ Mainly clear | 98° / 85° | 1% | 8 mph | 7 |
| Wed, Oct 7 | 🌤️ Mainly clear | 99° / 85° | 0% | 14 mph | 7 |
| Thu, Oct 8 | ☀️ Clear sky | 98° / 86° | 0% | 19 mph | 7 |
| Fri, Oct 9 | ☀️ Clear sky | 96° / 84° | 0% | 17 mph | 6 |
| Sat, Oct 10 | ☀️ Clear sky | 94° / 83° | 2% | 8 mph | 6 |
| Sun, Oct 11 | ☁️ Overcast | 96° / 85° | 4% | 11 mph | 6 |
| Mon, Oct 12 | ☁️ Overcast | 96° / 86° | 10% | 12 mph | 6 |
| Tue, Oct 13 | ☀️ Clear sky | 97° / 85° | 3% | 8 mph | 6 |
| Wed, Oct 14 | ☀️ Clear sky | 96° / 86° | 3% | 11 mph | 6 |
| Thu, Oct 15 | ☀️ Clear sky | 95° / 84° | 11% | 13 mph | 6 |
What this means for Maricopa County
Today is much colder than average for September. The forecast high of 85°F is 15.5°F below the 101°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.
What to pack, what to skip
- Lightweight, light-coloured clothing and a refillable water bottle
- Sunglasses, a brimmed hat and SPF 30+
- If your dates are flexible, avoid July, August and September - historically the least comfortable months here.
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 78°F (25°C) with clear. Humidity is 44% and wind is 4 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 9:02 PM.
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 September 30, 2026 at 9:02 PM local time. Live blocks refresh every 15 minutes; climate averages monthly.
