Las Vegas Weather Radar

Las Vegas Live Weather

Las Vegas Live Weather Radar

Click to toggle between the Las Vegas cloud cover radar map and the Las Vegas precipitation radar map.

Las Vegas Hourly Weather Forecast

Las Vegas 7-Day Weather Forecast

Las Vegas Weather Overview

Las Vegas sits in the Mojave Desert at roughly 2,000 feet above sea level, surrounded by mountain ranges that define an extreme hot-arid climate. The valley averages just 4.19 inches of precipitation per year — one of the lowest totals of any major U.S. city. Despite that dryness, the Las Vegas weather radar is one of the most important tools for local residents: conditions here can swing from record heat to violent flash floods within a single afternoon storm.

Extreme heat is the city's dominant weather threat. Summer highs regularly exceed 110°F, and the all-time record reached 117°F on June 20, 2017, per NOAA records. The NWS Las Vegas office (WFO VEF) issues excessive heat warnings frequently from May through September. Checking the Las Vegas weather radar and forecast before going outdoors is essential during these months — heat stroke risk builds fast on the Strip and across Henderson and Summerlin. When the radar shows clear skies and no storm relief for days, that's the signal a heat event is building.

Flash floods are the second major danger. The Las Vegas weather radar is critical during July through September monsoon season, when intense storms drop rain on hardpan desert that can't absorb it. The August 1999 flash flood series caused widespread damage across Clark County. Las Vegas also receives brief winter cold snaps — December 2008 and February 2019 both brought rare snow accumulation on the valley floor. Year-round, live Las Vegas weather radar is the fastest way to track these rapid, dangerous weather shifts before they arrive.

Las Vegas Weather Risks & Safety

Key weather hazards to monitor on the Las Vegas weather radar

Extreme Heat Risk

Summers in Las Vegas get dangerously hot — heat indices regularly push past 100°F, and heat waves can last for weeks. When the radar shows clear skies with no storm activity for days, that usually means the heat is building. Outdoor workers, elderly residents, and anyone without reliable AC are most at risk. Stay hydrated, avoid outdoor activity during peak afternoon hours, and check on neighbors who might be struggling.

Flash Flood Risk

The terrain around Las Vegas funnels rainfall fast — canyon drainages, dry washes, and paved surfaces concentrate water into flows that can sweep away vehicles within minutes. The radar shows real-time rainfall rates, so you can see where the heaviest rain is falling and whether flash flood conditions are building near you. When a flash flood warning hits the Las Vegas area, move to higher ground immediately. Don't wait to see the water rise.

Dust Storm & Haboob Risk

Dust storms — including massive haboobs — are a real hazard in Las Vegas, especially during monsoon season (June through September). A wall of dust can drop visibility to zero in seconds. Dust itself doesn't show on radar, but the thunderstorm outflow boundaries that trigger dust storms do. When radar shows a strong downdraft pushing toward Las Vegas, pull completely off the road, turn off your headlights, and wait it out.

How to Use Las Vegas Weather Radar

Follow these steps to get the most from the Las Vegas weather radar data.

Check Current Conditions

Look at the weather status bar at the top of the Las Vegas radar page — it shows current temperature, humidity, and wind speed. During summer, watch for heat index values that can push well above 110°F across the Vegas Valley.

Watch the Radar Map

The radar map shows precipitation and cloud cover moving across Las Vegas. Toggle animation to see storm cells forming over the Spring Mountains or moving up from the south during monsoon season, July through September.

Check the Forecast

Scroll to the hourly and 7-day forecast. Watch for any flash flood watches or extreme heat warnings from the NWS Las Vegas office (WFO VEF), especially during summer months when conditions can turn dangerous quickly.

Plan Your Activity

Rain building over Red Rock Canyon or Lake Mead? That often means flash flood risk for valley washes. Heading to the Strip or outdoor venues in Henderson? Check radar before you go and revisit it every hour during monsoon season.

Who Benefits from Las Vegas Weather Radar

How different people use the Las Vegas radar data

Commuters & Drivers

Check radar before driving I-15 or US-95 — flash floods can close underpasses and desert washes with no warning.

Outdoor Enthusiasts

Hikers at Red Rock Canyon and Lake Mead — monsoon storms build fast, check radar 30 minutes before heading out.

Event Planners & Families

Planning events at Allegiant Stadium or Sphere? Radar shows exactly when rare summer storms arrive on the Strip.

Outdoor Workers

Construction crews across Henderson and North Las Vegas — check the heat forecast before scheduling outdoor work in summer.

Las Vegas Weather FAQ

Common questions about Las Vegas weather patterns and radar

How hot does Las Vegas get in summer?

Las Vegas summers are extreme. High temperatures regularly exceed 110°F from June through August, and the all-time record is 117°F, recorded in June 2017 according to NOAA. The NWS Las Vegas office (WFO VEF) issues excessive heat warnings on many summer days. Outdoor workers and visitors should monitor the forecast closely and avoid peak afternoon heat between 1–5 PM.

When is flash flood season in Las Vegas?

Las Vegas flash flood season runs from mid-July through mid-September, during the North American Monsoon. Despite averaging just 4.19 inches of rain per year, monsoon storms can drop an inch of rain in under an hour on soil that can't absorb it. The August 1999 flood series caused widespread road closures across the Las Vegas Valley. Always check the radar when storms are in the forecast — desert washes fill fast.

Does Las Vegas ever get snow?

Yes, but rarely. Las Vegas averages less than one inch of snow per year. Brief accumulation occurred on the Strip in December 2008 and again in February 2019 during an unusual Arctic cold outbreak. Winter temperatures rarely drop below freezing, but the surrounding Spring Mountains above 7,000 feet receive regular snowfall from November through March.

What is the monsoon season in Las Vegas?

Las Vegas is on the northern edge of the North American Monsoon, which typically runs from July 15 through September 30. During this period, moist air flows from the Gulf of California, fueling afternoon and evening thunderstorms that can produce dangerous lightning, brief but intense rainfall, and flash floods. The las vegas weather radar is the best tool for tracking these fast-moving cells.

What are the biggest weather hazards in Las Vegas?

Extreme heat is the leading weather hazard — it kills more people annually in Clark County than any other weather event. Flash floods are the second biggest threat, capable of sweeping vehicles off roads in minutes. Haboob dust storms, though less frequent, can drop visibility to near zero along I-15 and across the valley during dry, windy conditions.

How is this different from KLAS or KTNV Las Vegas weather radar?

KLAS (8 News Now) and KTNV (13 Action News) offer Las Vegas radar alongside live broadcast meteorologist coverage — especially useful during active severe weather. This page provides a clean, ad-free interface with interactive RainViewer radar maps, Open-Meteo hourly forecasts, and a 7-day outlook for Las Vegas. Radar imagery updates approximately every 10 minutes. Bookmark this page for quick, uncluttered radar access any time.