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
1430 PST Wed Feb 4 2026
Official Sunrise Thursday 643 PST
Official Sunset Thursday 1714 PST
Forecaster: J Wood
.Forecast Summary...Its a mild afternoon under mostly sunny skies with high pressure over the region. Similar conditions will be observed tomorrow. A weak area of low pressure will pass through on Friday. It's main effects will be mostly cloudy skies and cooler temperatures. A few light showers are possible. This weekend will be dry with generally light winds. Looking ahead to next week, winter will be making a return. Several Pacific systems will be passing through our area. They will be accompanied by gusty winds, showers and, cooler temperatures.
---For The Nevada National Security Site---
.Tonight...Clear. Northeast winds 10 to 20 mph. Low temperatures 32 to 40 on the mesas, 25 to 30 on the dry lakes, 41 to 48 at the lower elevations, 48 at Mercury.
.Thursday...Mostly sunny. Northeast winds 5 to 15 mph in the morning becoming southeast 5 to 15 mph in the afternoon. High temperatures 53 to 60 on the mesas, 67 to 73 at the lower elevations 69 at Mercury.
.Thursday Night...Increasing clouds. East winds 5 to 15 mph. Low temperatures 30 to 38 on the mesas, 35 to 40 on the dry lakes, 41 to 48 at the lower elevations, 47 at Mercury.
.Friday...Mostly cloudy with isolated showers. Southeast winds 10 to 20 mph. High temperatures 45 to 52 on the mesas, 58 to 65 at the lower elevations 61 at Mercury.
.Saturday...Partly cloudy. North winds 10 to 20 mph. Low temperatures 28 to 35 on the mesas, 37 to 42 on the dry lakes, 37 to 44 at the lower elevations, 43 at Mercury. High temperatures 45 to 53 on the mesas, 60 to 67 at the lower elevations 63 at Mercury.
.Sunday...Mostly sunny. Southeast winds 5 to 15 mph. Low temperatures 27 to 34 on the mesas, 35 to 40 on the dry lakes, 37 to 44 at the lower elevations, 43 at Mercury. High temperatures 50 to 57 on the mesas, 64 to 71 at the lower elevations 67 at Mercury.
.Monday...Mostly cloudy. South winds 15 to 30 mph. Low temperatures 29 to 34 on the mesas, 40 to 45 on the dry lakes, 39 to 46 at the lower elevations, 45 at Mercury. High temperatures 45 to 52 on the mesas, 60 to 68 at the lower elevations 65 at Mercury.
.Tuesday...Mostly cloudy with a chance of showers. South winds 15 to 30 mph. Low temperatures 29 to 34 on the mesas, 40 to 45 on the dry lakes, 39 to 46 at the lower elevations, 44 at Mercury. High temperatures 40 to 48 on the mesas, 55 to 62 at the lower elevations 58 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
1430 PST Wed Feb 4 2026
Official Sunrise Thursday 643 PST
Official Sunset Thursday 1714 PST
Forecaster: J Wood
NNSS Forecast Weather Threat Matrix
Thu 2/05
Fri 2/06
Sat 2/07
Sun 2/08
Mon 2/09
Tue 2/10
None.
None.
None.
None.
Wind.
Wind/Showers.
Threat/Impacts Legend
None/Low
Minor
Moderate
Major
.Forecast Summary...Its a mild afternoon under mostly sunny skies with high pressure over the region. Similar conditions will be observed tomorrow. A weak area of low pressure will pass through on Friday. It's main effects will be mostly cloudy skies and cooler temperatures. A few light showers are possible. This weekend will be dry with generally light winds. Looking ahead to next week, winter will be making a return. Several Pacific systems will be passing through our area. They will be accompanied by gusty winds, showers and, cooler temperatures.
---For The Nevada National Security Site---
.Tonight...Clear. Northeast winds 10 to 20 mph. Low temperatures 32 to 40 on the mesas, 25 to 30 on the dry lakes, 41 to 48 at the lower elevations, 48 at Mercury.
.Thursday...Mostly sunny. Northeast winds 5 to 15 mph in the morning becoming southeast 5 to 15 mph in the afternoon. High temperatures 53 to 60 on the mesas, 67 to 73 at the lower elevations 69 at Mercury.
.Thursday Night...Increasing clouds. East winds 5 to 15 mph. Low temperatures 30 to 38 on the mesas, 35 to 40 on the dry lakes, 41 to 48 at the lower elevations, 47 at Mercury.
.Friday...Mostly cloudy with isolated showers. Southeast winds 10 to 20 mph. High temperatures 45 to 52 on the mesas, 58 to 65 at the lower elevations 61 at Mercury.
.Saturday...Partly cloudy. North winds 10 to 20 mph. Low temperatures 28 to 35 on the mesas, 37 to 42 on the dry lakes, 37 to 44 at the lower elevations, 43 at Mercury. High temperatures 45 to 53 on the mesas, 60 to 67 at the lower elevations 63 at Mercury.
.Sunday...Mostly sunny. Southeast winds 5 to 15 mph. Low temperatures 27 to 34 on the mesas, 35 to 40 on the dry lakes, 37 to 44 at the lower elevations, 43 at Mercury. High temperatures 50 to 57 on the mesas, 64 to 71 at the lower elevations 67 at Mercury.
.Monday...Mostly cloudy. South winds 15 to 30 mph. Low temperatures 29 to 34 on the mesas, 40 to 45 on the dry lakes, 39 to 46 at the lower elevations, 45 at Mercury. High temperatures 45 to 52 on the mesas, 60 to 68 at the lower elevations 65 at Mercury.
.Tuesday...Mostly cloudy with a chance of showers. South winds 15 to 30 mph. Low temperatures 29 to 34 on the mesas, 40 to 45 on the dry lakes, 39 to 46 at the lower elevations, 44 at Mercury. High temperatures 40 to 48 on the mesas, 55 to 62 at the lower elevations 58 at Mercury.
-End Forecast---J Wood
Weather questions or reports should be directed to the Duty Forecaster at 5-1255.