Pima County Weather Forecast
Pima County weather: 83°F, clear. Hourly forecast, 14-day outlook, UV, air quality and the best time to visit.
Risk assessment for Pima County
Derived from the current forecast window - not an official warning.
Peak gusts of 31 mph and 0 thunderstorm days in the next 16 days.
Wettest single day forecast at 0,2 in, 0,8 in across the window. Flash flooding risk rises sharply above 50 mm in a day.
Active alerts for Pima County
Extreme Heat Warning issued August 20 at 7:54PM MST until August 22 at 8:00PM MST by NWS Tucson AZ
Issued by NWS Tucson AZ
16-day forecast for Pima County
Daily highs and lows, precipitation and UV.
| Day | Conditions | High / Low | Precip | Wind | UV |
|---|---|---|---|---|---|
| Fri, Aug 21 | ☁️ Overcast | 109° / 77° | 9% | 18 mph | 9 |
| Sat, Aug 22 | ☁️ Overcast | 110° / 76° | 16% | 16 mph | 9 |
| Sun, Aug 23 | 🌦️ Light drizzle | 106° / 93° | 15% · 0,0 in | 17 mph | 9 |
| Mon, Aug 24 | ☁️ Overcast | 101° / 91° | 5% | 17 mph | 8 |
| Tue, Aug 25 | 🌦️ Light drizzle | 107° / 92° | 7% · 0,0 in | 14 mph | 8 |
| Wed, Aug 26 | ⛅ Partly cloudy | 106° / 90° | 2% | 19 mph | 8 |
| Thu, Aug 27 | 🌦️ Light drizzle | 107° / 89° | 4% · 0,0 in | 15 mph | 8 |
| Fri, Aug 28 | 🌦️ Light drizzle | 107° / 85° | 6% · 0,1 in | 24 mph | 8 |
| Sat, Aug 29 | ☁️ Overcast | 105° / 87° | 9% | 13 mph | 8 |
| Sun, Aug 30 | 🌦️ Light drizzle | 107° / 88° | 6% · 0,0 in | 15 mph | 8 |
| Mon, Aug 31 | 🌦️ Light drizzle | 96° / 89° | 27% · 0,1 in | 9 mph | 5 |
| Tue, Sep 1 | 🌦️ Drizzle | 99° / 86° | 30% · 0,1 in | 11 mph | 8 |
| Wed, Sep 2 | 🌦️ Drizzle | 95° / 84° | 32% · 0,1 in | 12 mph | 7 |
| Thu, Sep 3 | 🌦️ Drizzle | 96° / 82° | 33% · 0,2 in | 13 mph | 8 |
| Fri, Sep 4 | 🌦️ Drizzle | 96° / 81° | 39% · 0,2 in | 14 mph | 8 |
| Sat, Sep 5 | ☀️ Clear sky | -- / -- | 37% | -- | — |
What this means for Pima County
Today is warmer than average for August. The forecast high of 109°F is 8.8°F above 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 71°F.
See the Pima County forecast by time range
Pima County weather - more answers
Explore Pima County
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Weather for related places
Frequently asked questions
Where is Pima County?
Pima County is a county in Arizona. Its coordinates are 32.2226, -110.9747. It lies in North America.
What is the weather like in Pima County right now?
It is currently 83°F (29°C) with clear. Humidity is 35% and wind is 2 mph.
When is the best time to visit Pima County?
February, March, April and May offer the most comfortable conditions in Pima County, which has a hot and arid climate. January, July and September are usually the hardest months for outdoor plans.
What time zone is Pima County in?
Pima County observes America/Phoenix (UTC-07:00). The local time is 2:51 AM.
How many people live in Pima County?
Pima County has a population of approximately 1.1 million.
What is the nearest airport to Pima County?
The closest airports are Phoenix Sky Harbor International Airport (PHX), 103 mi away.
What are the top things to do in Pima County?
Popular options include Saguaro National Park, Slide Rock State Park and Petrified Forest 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 2:51 AM local time. Live blocks refresh every 15 minutes; climate averages monthly.
