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
1500 PST Wed Dec 10 2025
Official Sunrise Thursday 647 PST
Official Sunset Thursday 1628 PST
Forecaster: J Wood
.Forecast Summary...High pressure will provide mild afternoon temperatures under mostly sunny skies through the end of the week. Looking ahead to weekend, dry conditions will continue. There will be an increase in high clouds and a slight cooling trend as a weak trough passes through the area. A larger shift in the weather looks to occur next week as the storm track shifts southward into northern California. Our area will remain dry but, there will be an increase in clouds and wind. High temperature will continue to gradually cool.
---For The Nevada National Security Site---
.Tonight...Mostly clear. Northeast winds 5 to 15 mph. Low temperatures 38 to 45 on the mesas, 25 to 30 on the dry lakes, 42 to 50 at the lower elevations, 50 at Mercury.
.Thursday...Mostly sunny. Northeast winds 5 to 15 mph in the morning becoming variable 5 to 15 mph in the afternoon. High temperatures 55 to 62 on the mesas, 69 to 76 at the lower elevations, 72 at Mercury.
.Thursday Night...Mostly clear. Northeast winds 5 to 15 mph. Low temperatures 40 to 47 on the mesas, 25 to 30 on the dry lakes, 41 to 49 at the lower elevations, 48 at Mercury.
.Friday...Mostly sunny. Northeast winds 5 to 15 mph. High temperatures 53 to 60 on the mesas, 67 to 74 at the lower elevations, 70 at Mercury.
.Saturday...Partly cloudy. South winds 5 to 15 mph. Low temperatures 35 to 42 on the mesas, 25 to 30 on the dry lakes, 39 to 46 at the lower elevations, 44 at Mercury. High temperatures 50 to 57 on the mesas, 64 to 71 at the lower elevations, 67 at Mercury.
.Sunday...Mostly sunny. Southwest winds 5 to 15 mph. Low temperatures 35 to 42 on the mesas, 25 to 30 on the dry lakes, 37 to 44 at the lower elevations, 43 at Mercury. High temperatures 49 to 56 on the mesas, 63 to 70 at the lower elevations, 66 at Mercury.
.Monday...Partly cloudy. South winds 5 to 15 mph. Low temperatures 37 to 45 on the mesas, 30 to 35 on the dry lakes, 40 to 47 at the lower elevations, 46 at Mercury. High temperatures 48 to 55 on the mesas, 62 to 69 at the lower elevations, 65 at Mercury.
.Tuesday...Mostly cloudy. Southwest winds 10 to 25 mph. Low temperatures 36 to 44 on the mesas, 35 to 40 on the dry lakes, 42 to 49 at the lower elevations, 48 at Mercury. High temperatures 48 to 55 on the mesas, 62 to 69 at the lower elevations, 64 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
1500 PST Wed Dec 10 2025
Official Sunrise Thursday 647 PST
Official Sunset Thursday 1628 PST
Forecaster: J Wood
NNSS Forecast Weather Threat Matrix
Thu 12/11
Fri 12/12
Sat 12/13
Sun 12/14
Mon 12/15
Tue 12/16
None.
None.
None.
None.
None.
None.
Threat/Impacts Legend
None/Low
Minor
Moderate
Major
.Forecast Summary...High pressure will provide mild afternoon temperatures under mostly sunny skies through the end of the week. Looking ahead to weekend, dry conditions will continue. There will be an increase in high clouds and a slight cooling trend as a weak trough passes through the area. A larger shift in the weather looks to occur next week as the storm track shifts southward into northern California. Our area will remain dry but, there will be an increase in clouds and wind. High temperature will continue to gradually cool.
---For The Nevada National Security Site---
.Tonight...Mostly clear. Northeast winds 5 to 15 mph. Low temperatures 38 to 45 on the mesas, 25 to 30 on the dry lakes, 42 to 50 at the lower elevations, 50 at Mercury.
.Thursday...Mostly sunny. Northeast winds 5 to 15 mph in the morning becoming variable 5 to 15 mph in the afternoon. High temperatures 55 to 62 on the mesas, 69 to 76 at the lower elevations, 72 at Mercury.
.Thursday Night...Mostly clear. Northeast winds 5 to 15 mph. Low temperatures 40 to 47 on the mesas, 25 to 30 on the dry lakes, 41 to 49 at the lower elevations, 48 at Mercury.
.Friday...Mostly sunny. Northeast winds 5 to 15 mph. High temperatures 53 to 60 on the mesas, 67 to 74 at the lower elevations, 70 at Mercury.
.Saturday...Partly cloudy. South winds 5 to 15 mph. Low temperatures 35 to 42 on the mesas, 25 to 30 on the dry lakes, 39 to 46 at the lower elevations, 44 at Mercury. High temperatures 50 to 57 on the mesas, 64 to 71 at the lower elevations, 67 at Mercury.
.Sunday...Mostly sunny. Southwest winds 5 to 15 mph. Low temperatures 35 to 42 on the mesas, 25 to 30 on the dry lakes, 37 to 44 at the lower elevations, 43 at Mercury. High temperatures 49 to 56 on the mesas, 63 to 70 at the lower elevations, 66 at Mercury.
.Monday...Partly cloudy. South winds 5 to 15 mph. Low temperatures 37 to 45 on the mesas, 30 to 35 on the dry lakes, 40 to 47 at the lower elevations, 46 at Mercury. High temperatures 48 to 55 on the mesas, 62 to 69 at the lower elevations, 65 at Mercury.
.Tuesday...Mostly cloudy. Southwest winds 10 to 25 mph. Low temperatures 36 to 44 on the mesas, 35 to 40 on the dry lakes, 42 to 49 at the lower elevations, 48 at Mercury. High temperatures 48 to 55 on the mesas, 62 to 69 at the lower elevations, 64 at Mercury.
-End Forecast---J Wood
Weather questions or reports should be directed to the Duty Forecaster at 5-1255.