Tucson Mountains, Arizona Weather
The monsoon settles in. Day 15 of summer. Read this microseason across nine climate regions →
Tucson Mountains weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 5Overcast——107°80°—
- MondayJul 6Overcast——104°80°-3°
- TuesdayJul 7Light Drizzle10%—107°84°+3°
- WednesdayJul 8Light Drizzle——106°87°-1°
- ThursdayJul 9Light Showers22%—105°82°-1°
- FridayJul 10Light Drizzle16%—102°81°-3°
- SaturdayJul 11Light Drizzle26%—102°79°0°
AQI 48 (Good), driven by PM2.5. AQI flat over the last 6 hours (within ±4 points). PM2.5 at 14.8 µg/m³, PM10 at 35.0 µg/m³ — typical background levels with no transport signature.
OK No precautions needed for the general population; unusually sensitive individuals may consider limiting prolonged outdoor exertion.
What's driving it
PM × Wind × Precip
PM2.5 at 14.8 µg/m³, PM10 at 35.0 µg/m³ — typical background levels with no transport signature.
- PM2.5/PM10
- 0.42
- Wind
- calm
- Recent rain
- 0h in last 6h
- Pattern
- background
Trends
Seven days of AQI and PM2.5.
Hourly air-quality data from the Copernicus Atmosphere Monitoring Service, charted across the past and next several days. Dashed lines mark the AQI breakpoints at 50 (Good → Moderate) and 100 (Moderate → Unhealthy for Sensitive Groups).
If the first of July be rainy weather, 'twill rain more or less for four weeks together.
- Moonrise
- 10:39 PM
- Moonset
- 10:42 AM
- In sign
- ♓︎ Pisces
The monsoon settles in
Tucson Mountains at a glance
- Today vs. normal: 15°F above the seasonal normal for this latitude
- Last frost: March 1 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
16-Day Forecast — Tucson Mountains
- Sun107°80°4%
- Mon104°80°3%
- Tue107°84°10%
- Wed106°87°4%
- Thu105°82°22%
- Fri102°81°16%
- Sat102°79°26%
- Sun101°79°29%
- Mon102°85°29%
- Tue96°79°26%
- Wed99°80°17%
- Thu108°85°23%
- Fri111°91°23%
- Sat113°94°26%
- Sun108°92°30%
- Mon108°91°29%
Forecast data from Open-Meteo (CC BY 4.0).
Right now in the garden
Peak growing season
As of July 5, the growing season is at its peak — frost is months away. Continue succession-planting beans and summer squash. Start fall brassicas (broccoli, cabbage, kale) from seed indoors for transplanting in late summer.
SPC Convective Outlook
Storm Prediction Center — Tucson Mountains
SPC includes Tucson Mountains in the general thunderstorm area tomorrow — no severe risk, but storms are possible.
- TODAYNONENo severe risk
- TOMORROWTSTMGeneral Thunderstorms
- DAY 3NONENo severe risk
Thunderstorms possible. Not severe, but capable of producing lightning and brief heavy rain.
Source: NOAA / NWS Storm Prediction Center categorical convective outlook. Outlooks are re-issued multiple times per day; this page reflects the most recent SPC polygons covering the city’s coordinates.
Microseason · July 1–5
The monsoon settles in
Afternoon thunderstorms now daily ritual. Rains transform the desert green within 72 hours. Dust clears; air smells alive. Microburst winds flatten entire sections of mesquite.
Day 186 of 365 · Wedge 37 of 72
Planting calendar
| Month | Plant | Harvest |
|---|---|---|
| January | — | — |
| February | — | — |
| March | lettuce, peas, spinach, radishes | — |
| April | lettuce, peas, spinach, radishes, tomatoes, peppers, beans, squash | — |
| May | tomatoes, peppers, beans, squash | lettuce, peas, radishes |
| June | tomatoes, peppers, beans, squash | lettuce, peas, radishes |
| July | — | tomatoes, beans, summer squash |
| August | — | tomatoes, beans, summer squash |
| September | — | tomatoes, beans, summer squash |
| October | fall brassicas, garlic (overwinter), carrots | winter squash, tomatoes (last) |
| November | fall brassicas, garlic (overwinter), carrots | — |
| December | — | — |
A year in weather
The year in Tucson Mountains tops out in July (~87°F) and dips lowest in December (~51°F), with August wettest at 2.1 inches and May driest at 0.0 inches.
| Month | Mean temp | Precip | Rainy days |
|---|---|---|---|
| January | 52° | 0.8″ | 6 |
| February | 54° | 1.0″ | 6 |
| March | 60° | 0.7″ | 6 |
| April | 68° | 0.3″ | 3 |
| May | 78° | 0.0″ | 1 |
| June | 87° | 0.1″ | 2 |
| July | 87° | 1.4″ | 14 |
| August | 84° | 2.1″ | 17 |
| September | 83° | 0.8″ | 9 |
| October | 73° | 0.3″ | 2 |
| November | 60° | 0.8″ | 5 |
| December | 51° | 1.4″ | 7 |
Regional context
In Tucson Mountains, NOAA NCEI 1991-2020 normals put January near 52°F and July near 87°F — a 36°F seasonal arc — with about 9.7 inches of precipitation over 78 rainy or snowy days.
No season owns Tucson Mountains's rain: August reaches 2.1 inches across 17.3 days and May keeps 0.0 inches on 1.1, an even spread through Tucson Mountains's year. That lines Tucson Mountains up with places like Flowing Wells, AZ, Casas Adobes, AZ and Tucson Estates, AZ, fed by overlapping storm tracks.
With a coldest-month mean of 51°F, Tucson Mountains stays mostly frost-free and grows year-round. The July peak near 87°F is Tucson Mountains's real limit, pushing cool-season vegetables to spring and fall. Within Tucson Mountains, low or inland lots lose 3-5°F overnight versus Tucson Mountains's coastal ground.
Similar climates: Flowing Wells, AZ, Casas Adobes, AZ, Tucson Estates, AZ, South Tucson, AZ, Kleindale, AZ.
Frequently asked
- When does it freeze in Tucson Mountains?
- Tucson Mountains's last spring frost lands near mid-March, and in Tucson Mountains the first fall frost follows around mid-December.
- What is the rainy season in Tucson Mountains?
- Tucson Mountains sees its heaviest rain in August (around 2.1 inches), part of roughly 10 inches a year.
- What is the warmest month in Tucson Mountains?
- On average July tops the year in Tucson Mountains at about 87°F.
- What is the coldest month in Tucson Mountains?
- The coldest stretch in Tucson Mountains falls in December, around 51°F on average.
- When can I start a vegetable garden in Tucson Mountains?
- In Tucson Mountains, sow peas and hardy greens around mid-March; Tucson Mountains's tomatoes and peppers wait two weeks more.
- How many rainy days does Tucson Mountains get?
- Tucson Mountains averages about 78 days with measurable rain or snow each year.
- What hardiness zone is Tucson Mountains?
- Because Tucson Mountains bottoms near 51°F in December, that winter low sets Tucson Mountains's USDA zone — verify by ZIP.
- What is the 10-day forecast for Tucson Mountains?
- Tucson Mountains's extended outlook — daily high and low temperatures and precipitation chances for each upcoming day — is in the daily forecast above.
- Will it rain this week in Tucson Mountains?
- See this week's day-by-day rain chances for Tucson Mountains in the daily forecast above, and the next 24 hours in the hourly chart.
- What is the weather like right now in Tucson Mountains?
- Current conditions for Tucson Mountains and the next 24 hours — temperature, precipitation chance, and wind by the hour — are in the hourly forecast chart above.
- How often is the Tucson Mountains forecast updated?
- The Tucson Mountains forecast on this page is built from Open-Meteo weather-model data and refreshes regularly through the day.
- When are sunrise and sunset in Tucson Mountains?
- Today's sunrise and sunset times for Tucson Mountains are in the Almanac section above, along with civil dawn, civil dusk, and day length. Day length is longest near the summer solstice and shortest near the winter solstice.
- How accurate is the weather forecast for Tucson Mountains?
- The next few days in Tucson Mountains's forecast are the most reliable; accuracy declines beyond about a week as weather-model uncertainty grows.
Climate
In Tucson Mountains, Arizona, the hot desert climate runs from about 52°F in January to 87°F in July, a 35°F seasonal range.
Across the year, Tucson Mountains collects about 10 inches of precipitation over roughly 78 days with measurable rain or snow.
Tucson Mountains's 35°F range, set by its 32.3°N position, drives frost timing and what thrives in Tucson Mountains.
ZIP codes in Tucson Mountains
- 85743
- 85745