Las Vegas, Nevada Weather
Heat hardens the dust. Day 76 of spring. Read this microseason across nine climate regions →
Las Vegas weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJun 3Mostly Clear——102°71°—
- ThursdayJun 4Clear——104°69°+2°
- FridayJun 5Clear——102°73°-2°
- SaturdayJun 6Overcast——95°68°-7°
- SundayJun 7Overcast——94°66°-1°
- MondayJun 8Partly Cloudy——93°63°-1°
- TuesdayJun 9Partly Cloudy——93°65°0°
Ozone at AQI 45 now. AQI down 16 over the last 6 hours — air quality is improving sharply. With UV 8.6 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 52 by mid-afternoon.
OK No precautions needed for the general population; unusually sensitive individuals may consider limiting prolonged outdoor exertion during the projected peak around 10 PM.
What's driving it
Ozone × UV × Sky
Ozone at AQI 45 now. With UV 8.6 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 52 by mid-afternoon.
- Present
- AQI 45
- UV peak
- 8.6 at 1 PM
- Sky at peak
- clear
- Projected peak
- AQI 52
PM × Wind × Precip
PM2.5 at 5.6 µg/m³, PM10 at 11.5 µg/m³ — typical background levels with no transport signature.
- PM2.5/PM10
- 0.49
- 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).
The higher the clouds, the finer the weather.
- Moonrise
- 5:22 AM
- Moonset
- 2:57 PM
- In sign
- ♑︎ Capricorn
Heat hardens the dust
Las Vegas at a glance
- Today vs. normal: 9°F above the seasonal normal for this latitude
- Last frost: March 24 (climatological average for this latitude)
- Microseason: Jun 1–5
- Planting window: Harvest spring lettuce before it bolts. Sow heat-tolerant greens.
Right now in the garden
Peak growing season
As of June 3, 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.
Planting calendar
| Month | Plant | Harvest |
|---|---|---|
| January | — | — |
| February | — | — |
| March | — | — |
| April | lettuce, peas, spinach, radishes | — |
| May | lettuce, peas, spinach, radishes, tomatoes, peppers, beans, squash | lettuce, peas, radishes |
| June | tomatoes, peppers, beans, squash | lettuce, peas, radishes |
| July | tomatoes, peppers, beans, squash | tomatoes, beans, summer squash |
| August | — | tomatoes, beans, summer squash |
| September | fall brassicas, garlic (overwinter), carrots | tomatoes, beans, summer squash |
| October | fall brassicas, garlic (overwinter), carrots | winter squash, tomatoes (last) |
| November | — | — |
| December | — | — |
A year in weather
July brings Las Vegas's warmest temperatures (~92°F mean) while December delivers the coldest (~47°F). Rainfall reaches its peak in February (0.8 inches) and drops to nearly nothing in June (0.0 inches).
| Month | Mean temp | Precip | Rainy days |
|---|---|---|---|
| January | 49° | 0.7″ | 2 |
| February | 53° | 0.8″ | 2 |
| March | 60° | 0.5″ | 1 |
| April | 66° | 0.2″ | 1 |
| May | 76° | 0.1″ | 0 |
| June | 86° | 0.0″ | 0 |
| July | 92° | 0.1″ | 0 |
| August | 90° | 0.2″ | 1 |
| September | 82° | 0.2″ | 1 |
| October | 69° | 0.3″ | 1 |
| November | 56° | 0.3″ | 1 |
| December | 47° | 0.4″ | 1 |
Regional context
Las Vegas falls within a hot desert climate region — part of a group that shares similar temperature ranges, seasonal patterns, and growing conditions with nearby cities.
Similar climates: Henderson, NV, North Las Vegas, NV, Enterprise, NV, Spring Valley, NV, Sunrise Manor, NV.
Naturalist notes
Desert marigolds begin their spring bloom in late April as temperatures climb consistently above freezing.
Gambel's quail start their distinctive three-note calls in early May as breeding season begins.
Frequently asked
- When does it freeze in Las Vegas?
- Las Vegas's last spring frost typically falls around mid-April, and the first fall frost arrives around mid-November.
- What is the rainy season in Las Vegas?
- February is the wettest month with about 0.8 inches of rain on average; the city receives roughly 4 inches annually.
- What is the warmest month in Las Vegas?
- July is typically warmest, averaging about 92°F.
- What is the coldest month in Las Vegas?
- December is typically coldest, averaging about 47°F.
- When can I start a vegetable garden in Las Vegas?
- Cool-season crops (peas, lettuce) can be sown around the last spring frost (mid-April); warm-season crops (tomatoes, peppers) wait until 1–2 weeks after.
- How many rainy days does Las Vegas get?
- Las Vegas averages about 10 rainy days per year.
- What hardiness zone is Las Vegas?
- Las Vegas's USDA hardiness zone is determined by its lowest average winter temperature; check the USDA's online lookup with the city ZIP for the current zone designation.
Climate
Las Vegas, Nevada sits in a hot desert climate zone. Temperatures hover near 49°F in January while July averages 92°F — a 43°F seasonal swing.
Throughout the year, Las Vegas receives about 4 inches of precipitation spread over roughly 10 rainy days.
Local weather patterns follow the city's latitude (36.2°N), proximity to large water bodies, and elevation — factors that determine what grows here, when frost occurs, and daily weather conditions.