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 Dec 3 2025
Official Sunrise Thursday 642 PST
Official Sunset Thursday 1627 PST
Forecaster: J Wood
.Forecast Summary...Todays gusty winds will diminish this evening setting the stage for a cold night. Locations on the dry lakes and mesas will likely observe subfreezing temperatures. Northerly flow aloft will then remain over the region through the middle of next week. There will be periods of high clouds and gusty winds as systems pass by to the east. High temperatures will be the coolest tomorrow then gradually warm though the weekend. Overnight lows will remain seasonable cold.
---For The Nevada National Security Site---
.Tonight...Mostly clear. Northeast winds 10 to 25 mph. Low temperatures 18 to 25 on the mesas, 25 to 30 on the dry lakes, 29 to 36 at the lower elevations, 36 at Mercury.
.Thursday...Mostly sunny. Northeast winds 10 to 25 mph. High temperatures 37 to 44 on the mesas, 50 to 57 at the lower elevations, 53 at Mercury.
.Thursday Night...Mostly clear. Northeast winds 5 to 15 mph. Low temperatures 22 to 30 on the mesas, 20 to 25 on the dry lakes, 29 to 36 at the lower elevations, 35 at Mercury.
.Friday...Mostly sunny. Northeast winds 10 to 20 mph. High temperatures 40 to 47 on the mesas, 54 to 61 at the lower elevations, 57 at Mercury.
.Saturday...Partly cloudy. Northeast winds 10 to 25 mph. Low temperatures 20 to 28 on the mesas, 25 to 30 on the dry lakes, 31 to 38 at the lower elevations, 38 at Mercury. High temperatures 43 to 50 on the mesas, 56 to 63 at the lower elevations, 59 at Mercury.
.Sunday...Partly cloudy. Northeast winds 10 to 20 mph. Low temperatures 22 to 30 on the mesas, 25 to 30 on the dry lakes, 34 to 42 at the lower elevations, 41 at Mercury. High temperatures 45 to 52 on the mesas, 58 to 65 at the lower elevations, 61 at Mercury.
.Monday...Mostly sunny. Northeast winds 5 to 15 mph. Low temperatures 25 to 32 on the mesas, 25 to 30 on the dry lakes, 36 to 44 at the lower elevations, 43 at Mercury. High temperatures 46 to 53 on the mesas, 60 to 67 at the lower elevations, 63 at Mercury.
.Tuesday...Mostly sunny. Northeast winds 5 to 15 mph. Low temperatures 27 to 34 on the mesas, 25 to 30 on the dry lakes, 39 to 46 at the lower elevations, 45 at Mercury. High temperatures 47 to 54 on the mesas, 61 to 68 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
1430 PST Wed Dec 3 2025
Official Sunrise Thursday 642 PST
Official Sunset Thursday 1627 PST
Forecaster: J Wood
NNSS Forecast Weather Threat Matrix
Thu 12/04
Fri 12/05
Sat 12/06
Sun 12/07
Mon 12/08
Tue 12/09
None.
None.
None.
None.
None.
None.
Threat/Impacts Legend
None/Low
Minor
Moderate
Major
.Forecast Summary...Todays gusty winds will diminish this evening setting the stage for a cold night. Locations on the dry lakes and mesas will likely observe subfreezing temperatures. Northerly flow aloft will then remain over the region through the middle of next week. There will be periods of high clouds and gusty winds as systems pass by to the east. High temperatures will be the coolest tomorrow then gradually warm though the weekend. Overnight lows will remain seasonable cold.
---For The Nevada National Security Site---
.Tonight...Mostly clear. Northeast winds 10 to 25 mph. Low temperatures 18 to 25 on the mesas, 25 to 30 on the dry lakes, 29 to 36 at the lower elevations, 36 at Mercury.
.Thursday...Mostly sunny. Northeast winds 10 to 25 mph. High temperatures 37 to 44 on the mesas, 50 to 57 at the lower elevations, 53 at Mercury.
.Thursday Night...Mostly clear. Northeast winds 5 to 15 mph. Low temperatures 22 to 30 on the mesas, 20 to 25 on the dry lakes, 29 to 36 at the lower elevations, 35 at Mercury.
.Friday...Mostly sunny. Northeast winds 10 to 20 mph. High temperatures 40 to 47 on the mesas, 54 to 61 at the lower elevations, 57 at Mercury.
.Saturday...Partly cloudy. Northeast winds 10 to 25 mph. Low temperatures 20 to 28 on the mesas, 25 to 30 on the dry lakes, 31 to 38 at the lower elevations, 38 at Mercury. High temperatures 43 to 50 on the mesas, 56 to 63 at the lower elevations, 59 at Mercury.
.Sunday...Partly cloudy. Northeast winds 10 to 20 mph. Low temperatures 22 to 30 on the mesas, 25 to 30 on the dry lakes, 34 to 42 at the lower elevations, 41 at Mercury. High temperatures 45 to 52 on the mesas, 58 to 65 at the lower elevations, 61 at Mercury.
.Monday...Mostly sunny. Northeast winds 5 to 15 mph. Low temperatures 25 to 32 on the mesas, 25 to 30 on the dry lakes, 36 to 44 at the lower elevations, 43 at Mercury. High temperatures 46 to 53 on the mesas, 60 to 67 at the lower elevations, 63 at Mercury.
.Tuesday...Mostly sunny. Northeast winds 5 to 15 mph. Low temperatures 27 to 34 on the mesas, 25 to 30 on the dry lakes, 39 to 46 at the lower elevations, 45 at Mercury. High temperatures 47 to 54 on the mesas, 61 to 68 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.