Today's Weather Forecast - Las Vegas

Today's weather in Las Vegas. high 42°C (108°F), low 32°C (90°F). Mainly Clear.

Today’s Hourly Weather Outlook

Morning6 AM – Noon35°
Wind speed
14 km/h
Rain probability
1%
AfternoonNoon – 6 PM42°
Wind speed
32 km/h
Rain probability
1%
Evening6 PM – Midn36°
Wind speed
26 km/h
Rain probability
1%
NightMidn – 6 AM35°
Wind speed
16 km/h
Rain probability
4%

24-Hour Rain & Temperature Forecast

Sunrise & Sunset

Sunrise
Dawn 5:50 AM
Total Daylight
42% of day elapsedSolar noon 12:36 PM
Sunset
Dusk 7:23 PM
Remaining7h 19m
Solar elevation55°
vs yesterday-4 min

5-Day Weather Forecast

Full 15-Day Forecast

Weather Insight

Las Vegas is forecast to reach a high of 42°C today, with an overnight low around 32°C. That's 6° above the long-term average high of 36°C for this time of year. It continues a recent pattern — 13 of the last 19 days with published data have run warmer than normal. Expect little chance of rain (4% probability) and moderate breezes averaging 32 km/h. Air quality is currently good (AQI 17), with no notable outdoor health concerns.

Today vs Normal

42°C+6° above normal

The long-term average high for today is 36°C.

13 of the last 19 days with published data ran above normal.

It continues that pattern - today's forecast is also running above normal.

2026-08-19: 42°C42°2026-08-20: 41°C41°2026-08-21: 40°C40°2026-08-22: 41°C41°2026-08-23: 42°C42°2026-08-24: 40°C40°2026-08-25: 40°C40°2026-08-26: 43°C43°2026-08-27: 42°C42°2026-08-28: 40°C40°2026-08-29: 39°C39°2026-08-30: 37°C37°

Red = above normal, blue = at or below · last 12 days

Air Quality

Air Quality
Good

Air quality is considered satisfactory, and air pollution poses little or no risk. It’s a good day to be active outside.