Air Resources Laboratory / Special Operations And Research Division (SORD)
Weather Advisories:
Nevada National Security Site Weather Forecast
Air Resources Laboratory/Special Operations and Research Division
1200 PST Fri Feb 13 2026
Official Sunrise Saturday 634 PST
Official Sunset Saturday 1723 PST
Forecaster: J Wood
.Forecast Summary...Clouds and wind will be on the increase this weekend as a Pacific Storm develops over the eastern Pacific. It will move inland on Monday accompanied by gusty southerly winds and rain for most of the site. Snow will be confined to the mesas and higher mountains. Tuesday will be cool and showery. The snow level will lower to near 5000 feet but precipitation will be light with only minor accumulations above that level. A second and colder storm could arrive for Wednesday with low snow levels. It will be capable of producing minor accumulations for the lower elevations including Mercury. Thursday will see improving conditions as the storm heads off to the east. There will still be isolated snow showers but, no impacts are expected.
---For The Nevada National Security Site---
.Tonight...Mostly clear. Northeast winds 5 to 15 mph. Low temperatures 25 to 32 on the mesas, 35 to 40 on the dry lakes, 35 to 43 at the lower elevations, 42 at Mercury.
.Saturday...Increasing high clouds. South winds 10 to 20 mph with gusts to 30 mph. High temperatures 45 to 52 on the mesas, 59 to 66 at the lower elevations, 62 at Mercury.
.Saturday Night...Mostly cloudy. South winds 10 to 20 mph. Low temperatures 27 to 33 on the mesas, 40 to 45 on the dry lakes, 40 to 47 at the lower elevations, 45 at Mercury.
.Sunday...Mostly cloudy and windy. South winds 15 to 25 mph with gusts to 35 mph. High temperatures 46 to 55 on the mesas, 60 to 67 at the lower elevations, 64 at Mercury.
.Monday...Showers with snow above 6000 feet. South winds 20 to 30 mph with gusts to 45 mph. Low temperatures 26 to 33 on the mesas, 40 to 45 on the dry lakes, 39 to 46 at the lower elevations, 45 at Mercury. High temperatures 39 to 46 on the mesas, 53 to 59 at the lower elevations, 56 at Mercury.
.Tuesday...Scattered showers with snow above 5000 feet. Windy. Southwest winds 15 to 25 mph with gusts to 35 mph. Low temperatures 25 to 31 on the mesas, 35 to 40 on the dry lakes, 35 to 42 at the lower elevations, 40 at Mercury. High temperatures 32 to 39 on the mesas, 46 to 53 at the lower elevations, 50 at Mercury.
.Wednesday...Showers with snow above 3500 feet. Southwest winds 10 to 20 mph with gusts to 30 mph. Low temperatures 20 to 27 on the mesas, 32 to 37 on the dry lakes, 30 to 37 at the lower elevations, 34 at Mercury. High temperatures 32 to 39 on the mesas, 45 to 52 at the lower elevations, 49 at Mercury.
.Thursday...Partly cloudy with isolated snow showers. North winds 15 to 30 mph. Low temperatures 18 to 25 on the mesas, 27 to 32 on the dry lakes, 28 to 34 at the lower elevations, 32 at Mercury. High temperatures 28 to 35 on the mesas, 41 to 48 at the lower elevations, 45 at Mercury.
-End Forecast---J Wood
Weather questions or reports should be directed to the Duty Forecaster at 5-1255.
Air Resources Laboratory/Special Operations and Research Division
1200 PST Fri Feb 13 2026
Official Sunrise Saturday 634 PST
Official Sunset Saturday 1723 PST
Forecaster: J Wood
NNSS Forecast Weather Threat Matrix
Sat 2/14
Sun 2/15
Mon 2/16
Tue 2/17
Wed 2/18
Thu 2/19
Wind.
Wind.
Wind/Showers.
Wind/Showers.
Snow/Wind.
Wind/Snow.
Threat/Impacts Legend
None/Low
Minor
Moderate
Major
.Forecast Summary...Clouds and wind will be on the increase this weekend as a Pacific Storm develops over the eastern Pacific. It will move inland on Monday accompanied by gusty southerly winds and rain for most of the site. Snow will be confined to the mesas and higher mountains. Tuesday will be cool and showery. The snow level will lower to near 5000 feet but precipitation will be light with only minor accumulations above that level. A second and colder storm could arrive for Wednesday with low snow levels. It will be capable of producing minor accumulations for the lower elevations including Mercury. Thursday will see improving conditions as the storm heads off to the east. There will still be isolated snow showers but, no impacts are expected.
---For The Nevada National Security Site---
.Tonight...Mostly clear. Northeast winds 5 to 15 mph. Low temperatures 25 to 32 on the mesas, 35 to 40 on the dry lakes, 35 to 43 at the lower elevations, 42 at Mercury.
.Saturday...Increasing high clouds. South winds 10 to 20 mph with gusts to 30 mph. High temperatures 45 to 52 on the mesas, 59 to 66 at the lower elevations, 62 at Mercury.
.Saturday Night...Mostly cloudy. South winds 10 to 20 mph. Low temperatures 27 to 33 on the mesas, 40 to 45 on the dry lakes, 40 to 47 at the lower elevations, 45 at Mercury.
.Sunday...Mostly cloudy and windy. South winds 15 to 25 mph with gusts to 35 mph. High temperatures 46 to 55 on the mesas, 60 to 67 at the lower elevations, 64 at Mercury.
.Monday...Showers with snow above 6000 feet. South winds 20 to 30 mph with gusts to 45 mph. Low temperatures 26 to 33 on the mesas, 40 to 45 on the dry lakes, 39 to 46 at the lower elevations, 45 at Mercury. High temperatures 39 to 46 on the mesas, 53 to 59 at the lower elevations, 56 at Mercury.
.Tuesday...Scattered showers with snow above 5000 feet. Windy. Southwest winds 15 to 25 mph with gusts to 35 mph. Low temperatures 25 to 31 on the mesas, 35 to 40 on the dry lakes, 35 to 42 at the lower elevations, 40 at Mercury. High temperatures 32 to 39 on the mesas, 46 to 53 at the lower elevations, 50 at Mercury.
.Wednesday...Showers with snow above 3500 feet. Southwest winds 10 to 20 mph with gusts to 30 mph. Low temperatures 20 to 27 on the mesas, 32 to 37 on the dry lakes, 30 to 37 at the lower elevations, 34 at Mercury. High temperatures 32 to 39 on the mesas, 45 to 52 at the lower elevations, 49 at Mercury.
.Thursday...Partly cloudy with isolated snow showers. North winds 15 to 30 mph. Low temperatures 18 to 25 on the mesas, 27 to 32 on the dry lakes, 28 to 34 at the lower elevations, 32 at Mercury. High temperatures 28 to 35 on the mesas, 41 to 48 at the lower elevations, 45 at Mercury.
-End Forecast---J Wood
Weather questions or reports should be directed to the Duty Forecaster at 5-1255.