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 Fri Dec 5 2025
Official Sunrise Saturday 643 PST
Official Sunset Saturday 1627 PST
Forecaster: J Wood
.Forecast Summary...Northerly flow aloft will be over the region through the end of next week. There will be periods of high clouds and breezy conditions as systems pass by to the east. High temperatures will gradually warm though mid next week. Overnight lows will remain seasonable cold. Looking beyond the forecast period, dry weather is likely to continue at least through the middle of the month.
---For The Nevada National Security Site---
.Tonight...Mostly clear. Northeast winds 5 to 15 mph. Low temperatures 28 to 35 on the mesas, 22 to 27 on the dry lakes, 36 to 43 at the lower elevations, 43 at Mercury.
.Saturday...Mostly sunny. Northeast winds 10 to 20 mph. High temperatures 43 to 50 on the mesas, 57 to 64 at the lower elevations, 61 at Mercury.
.Saturday Night...Mostly clear. Northeast winds 5 to 15 mph. Low temperatures 27 to 35 on the mesas, 25 to 30 on the dry lakes, 36 to 44 at the lower elevations, 43 at Mercury.
.Sunday...Partly cloudy. Northeast winds 10 to 25 mph. High temperatures 43 to 50 on the mesas, 57 to 64 at the lower elevations, 60 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...Partly cloudy. 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, 65 at Mercury.
.Wednesday...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, 60 to 67 at the lower elevations, 66 at Mercury.
.Thursday...Partly cloudy. 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, 60 to 67 at the lower elevations, 66 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 Fri Dec 5 2025
Official Sunrise Saturday 643 PST
Official Sunset Saturday 1627 PST
Forecaster: J Wood
NNSS Forecast Weather Threat Matrix
Sat 12/06
Sun 12/07
Mon 12/08
Tue 12/09
Wed 12/10
Thu 12/11
None.
None.
None.
None.
None.
None.
Threat/Impacts Legend
None/Low
Minor
Moderate
Major
.Forecast Summary...Northerly flow aloft will be over the region through the end of next week. There will be periods of high clouds and breezy conditions as systems pass by to the east. High temperatures will gradually warm though mid next week. Overnight lows will remain seasonable cold. Looking beyond the forecast period, dry weather is likely to continue at least through the middle of the month.
---For The Nevada National Security Site---
.Tonight...Mostly clear. Northeast winds 5 to 15 mph. Low temperatures 28 to 35 on the mesas, 22 to 27 on the dry lakes, 36 to 43 at the lower elevations, 43 at Mercury.
.Saturday...Mostly sunny. Northeast winds 10 to 20 mph. High temperatures 43 to 50 on the mesas, 57 to 64 at the lower elevations, 61 at Mercury.
.Saturday Night...Mostly clear. Northeast winds 5 to 15 mph. Low temperatures 27 to 35 on the mesas, 25 to 30 on the dry lakes, 36 to 44 at the lower elevations, 43 at Mercury.
.Sunday...Partly cloudy. Northeast winds 10 to 25 mph. High temperatures 43 to 50 on the mesas, 57 to 64 at the lower elevations, 60 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...Partly cloudy. 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, 65 at Mercury.
.Wednesday...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, 60 to 67 at the lower elevations, 66 at Mercury.
.Thursday...Partly cloudy. 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, 60 to 67 at the lower elevations, 66 at Mercury.
-End Forecast---J Wood
Weather questions or reports should be directed to the Duty Forecaster at 5-1255.