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
0730 PST Wed Jan 7 2026
Official Sunset Wednesday 1644 PST
Official Sunrise Thursday 658 PST
Forecaster: J Wood
.Forecast Summary...Generally quiet weather expected today. A cold area of low pressure will approach from the north tonight pushing a cold front through the site early tomorrow morning. It will be accompanied by snow showers/flurries and gusty northerly winds. Little to no accumulations are expected at the lower elevations. Thursday will be windy and cool as the system continues south away from our area. It will be cold Friday morning with lows near to below freezing for most of the site. High pressure will then build over the west this weekend promoting a warming trend under mostly sunny skies. Snowfall totals for Thursday morning: trace to 2" for the mesas and mountains, Trace to 0.5" for the lower elevations.
---For The Nevada National Security Site---
.Today...Partly cloudy. Northeast winds to 10 mph this morning becoming southwest 5 to 15 mph this afternoon. High temperatures 37 to 44 on the mesas, 50 to 57 at the lower elevations, 53 at Mercury.
.Tonight...Increasing clouds with scattered snow showers after midnight. West winds 5 to 15 mph in the evening becoming northwest 15 to 25 mph with gusts to 35 mph after midnight. Low temperatures 23 to 30 on the mesas, 32 to 37 on the dry lakes, 30 to 37 at the lower elevations, 35 at Mercury.
.Thursday...Partly cloudy with isolated morning snow showers. Windy with northwest winds 20 to 30 mph with gusts to 45 mph. High temperatures 30 to 37 on the mesas, 44 to 51 at the lower elevations, 47 at Mercury.
.Thursday Night...Mostly clear. North winds 10 to 20 mph with gusts to 30 mph. Low temperatures 17 to 24 on the mesas, 25 to 30 on the dry lakes, 25 to 32 at the lower elevations, 30 at Mercury.
.Friday...Mostly sunny. Northeast winds 10 to 20 mph with gusts to 30 mph. High temperatures 33 to 40 on the mesas, 45 to 52 at the lower elevations, 49 at Mercury.
.Saturday...Mostly sunny. Northeast winds 10 to 20 mph. Low temperatures 18 to 26 on the mesas, 20 to 25 on the dry lakes, 27 to 34 at the lower elevations, 32 at Mercury. High temperatures 37 to 44 on the mesas, 50 to 57 at the lower elevations, 53 at Mercury.
.Sunday...Mostly sunny. Northeast winds 5 to 15 mph. Low temperatures 23 to 30 on the mesas, 20 to 25 on the dry lakes, 31 to 38 at the lower elevations, 37 at Mercury. High temperatures 39 to 46 on the mesas, 53 to 60 at the lower elevations, 57 at Mercury.
.Monday...Mostly sunny. Northeast winds 5 to 15 mph. Low temperatures 27 to 35 on the mesas, 20 to 25 on the dry lakes, 33 to 40 at the lower elevations, 39 at Mercury. High temperatures 41 to 48 on the mesas, 54 to 61 at the lower elevations, 58 at Mercury.
.Tuesday...Mostly sunny. Northeast winds 5 to 15 mph. Low temperatures 27 to 35 on the mesas, 20 to 25 on the dry lakes, 33 to 40 at the lower elevations, 39 at Mercury. High temperatures 41 to 48 on the mesas, 54 to 61 at the lower elevations, 60 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
0730 PST Wed Jan 7 2026
Official Sunset Wednesday 1644 PST
Official Sunrise Thursday 658 PST
Forecaster: J Wood
NNSS Forecast Weather Threat Matrix
Wed 1/07
Thu 1/08
Fri 1/09
Sat 1/10
Sun 1/11
Mon 1/12
Tue 1/13
None.
Wind.
Wind.
None.
None.
None.
None.
Threat/Impacts Legend
None/Low
Minor
Moderate
Major
.Forecast Summary...Generally quiet weather expected today. A cold area of low pressure will approach from the north tonight pushing a cold front through the site early tomorrow morning. It will be accompanied by snow showers/flurries and gusty northerly winds. Little to no accumulations are expected at the lower elevations. Thursday will be windy and cool as the system continues south away from our area. It will be cold Friday morning with lows near to below freezing for most of the site. High pressure will then build over the west this weekend promoting a warming trend under mostly sunny skies. Snowfall totals for Thursday morning: trace to 2" for the mesas and mountains, Trace to 0.5" for the lower elevations.
---For The Nevada National Security Site---
.Today...Partly cloudy. Northeast winds to 10 mph this morning becoming southwest 5 to 15 mph this afternoon. High temperatures 37 to 44 on the mesas, 50 to 57 at the lower elevations, 53 at Mercury.
.Tonight...Increasing clouds with scattered snow showers after midnight. West winds 5 to 15 mph in the evening becoming northwest 15 to 25 mph with gusts to 35 mph after midnight. Low temperatures 23 to 30 on the mesas, 32 to 37 on the dry lakes, 30 to 37 at the lower elevations, 35 at Mercury.
.Thursday...Partly cloudy with isolated morning snow showers. Windy with northwest winds 20 to 30 mph with gusts to 45 mph. High temperatures 30 to 37 on the mesas, 44 to 51 at the lower elevations, 47 at Mercury.
.Thursday Night...Mostly clear. North winds 10 to 20 mph with gusts to 30 mph. Low temperatures 17 to 24 on the mesas, 25 to 30 on the dry lakes, 25 to 32 at the lower elevations, 30 at Mercury.
.Friday...Mostly sunny. Northeast winds 10 to 20 mph with gusts to 30 mph. High temperatures 33 to 40 on the mesas, 45 to 52 at the lower elevations, 49 at Mercury.
.Saturday...Mostly sunny. Northeast winds 10 to 20 mph. Low temperatures 18 to 26 on the mesas, 20 to 25 on the dry lakes, 27 to 34 at the lower elevations, 32 at Mercury. High temperatures 37 to 44 on the mesas, 50 to 57 at the lower elevations, 53 at Mercury.
.Sunday...Mostly sunny. Northeast winds 5 to 15 mph. Low temperatures 23 to 30 on the mesas, 20 to 25 on the dry lakes, 31 to 38 at the lower elevations, 37 at Mercury. High temperatures 39 to 46 on the mesas, 53 to 60 at the lower elevations, 57 at Mercury.
.Monday...Mostly sunny. Northeast winds 5 to 15 mph. Low temperatures 27 to 35 on the mesas, 20 to 25 on the dry lakes, 33 to 40 at the lower elevations, 39 at Mercury. High temperatures 41 to 48 on the mesas, 54 to 61 at the lower elevations, 58 at Mercury.
.Tuesday...Mostly sunny. Northeast winds 5 to 15 mph. Low temperatures 27 to 35 on the mesas, 20 to 25 on the dry lakes, 33 to 40 at the lower elevations, 39 at Mercury. High temperatures 41 to 48 on the mesas, 54 to 61 at the lower elevations, 60 at Mercury.
-End Forecast---J Wood
Weather questions or reports should be directed to the Duty Forecaster at 5-1255.