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 Tue Feb 3 2026
Official Sunrise Wednesday 644 PST
Official Sunset Wednesday 1713 PST
Forecaster: J Wood
.Forecast Summary...High pressure will be over the region through Thursday providing above normal afternoon temperatures under sunny skies. Gusty northerly winds will also be observed at times. A return to more typical winter weather will begin on Friday. A weak area of low pressure will bring clouds and slightly cooler temperatures. There's even the possibility of a few light showers. Saturday will be cooler and dry. A Pacific storm will begin to approach on Sunday and pass through our area early next week. It will be preceded by an increase in clouds and wind. Showers develop just beyond the forecast period for Tuesday.
---For The Nevada National Security Site---
.Tonight...Clear. Northeast winds 10 to 20 mph. Low temperatures 32 to 40 on the mesas, 20 to 25 on the dry lakes, 41 to 48 at the lower elevations, 47 at Mercury.
.Wednesday...Mostly sunny. North winds 10 to 20 mph with gusts to 30 mph. High temperatures 50 to 57 on the mesas, 67 to 74 at the lower elevations 70 at Mercury.
.Wednesday Night...Clear. Northeast winds 10 to 20 mph. Low temperatures 30 to 38 on the mesas, 25 to 30 on the dry lakes, 41 to 48 at the lower elevations, 45 at Mercury.
.Thursday...Mostly sunny. Northeast winds 10 to 20 mph. High temperatures 50 to 57 on the mesas, 64 to 71 at the lower elevations 67 at Mercury.
.Friday...Mostly cloudy with a slight chance of showers. South winds 10 to 20 mph. Low temperatures 30 to 38 on the mesas, 40 to 45 on the dry lakes, 41 to 48 at the lower elevations, 45 at Mercury. High temperatures 47 to 54 on the mesas, 60 to 68 at the lower elevations 64 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 52 on the mesas, 58 to 65 at the lower elevations 61 at Mercury.
.Sunday...Partly cloudy. Southeast winds 10 to 20 mph. Low temperatures 25 to 32 on the mesas, 35 to 40 on the dry lakes, 36 to 42 at the lower elevations, 41 at Mercury. High temperatures 47 to 54 on the mesas, 61 to 69 at the lower elevations 65 at Mercury.
.Monday...Mostly cloudy. South winds 20 to 35 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 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 Tue Feb 3 2026
Official Sunrise Wednesday 644 PST
Official Sunset Wednesday 1713 PST
Forecaster: J Wood
NNSS Forecast Weather Threat Matrix
Wed 2/04
Thu 2/05
Fri 2/06
Sat 2/07
Sun 2/08
Mon 2/09
Wind.
None.
None.
None.
None.
Wind.
Threat/Impacts Legend
None/Low
Minor
Moderate
Major
.Forecast Summary...High pressure will be over the region through Thursday providing above normal afternoon temperatures under sunny skies. Gusty northerly winds will also be observed at times. A return to more typical winter weather will begin on Friday. A weak area of low pressure will bring clouds and slightly cooler temperatures. There's even the possibility of a few light showers. Saturday will be cooler and dry. A Pacific storm will begin to approach on Sunday and pass through our area early next week. It will be preceded by an increase in clouds and wind. Showers develop just beyond the forecast period for Tuesday.
---For The Nevada National Security Site---
.Tonight...Clear. Northeast winds 10 to 20 mph. Low temperatures 32 to 40 on the mesas, 20 to 25 on the dry lakes, 41 to 48 at the lower elevations, 47 at Mercury.
.Wednesday...Mostly sunny. North winds 10 to 20 mph with gusts to 30 mph. High temperatures 50 to 57 on the mesas, 67 to 74 at the lower elevations 70 at Mercury.
.Wednesday Night...Clear. Northeast winds 10 to 20 mph. Low temperatures 30 to 38 on the mesas, 25 to 30 on the dry lakes, 41 to 48 at the lower elevations, 45 at Mercury.
.Thursday...Mostly sunny. Northeast winds 10 to 20 mph. High temperatures 50 to 57 on the mesas, 64 to 71 at the lower elevations 67 at Mercury.
.Friday...Mostly cloudy with a slight chance of showers. South winds 10 to 20 mph. Low temperatures 30 to 38 on the mesas, 40 to 45 on the dry lakes, 41 to 48 at the lower elevations, 45 at Mercury. High temperatures 47 to 54 on the mesas, 60 to 68 at the lower elevations 64 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 52 on the mesas, 58 to 65 at the lower elevations 61 at Mercury.
.Sunday...Partly cloudy. Southeast winds 10 to 20 mph. Low temperatures 25 to 32 on the mesas, 35 to 40 on the dry lakes, 36 to 42 at the lower elevations, 41 at Mercury. High temperatures 47 to 54 on the mesas, 61 to 69 at the lower elevations 65 at Mercury.
.Monday...Mostly cloudy. South winds 20 to 35 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 64 at Mercury.
-End Forecast---J Wood
Weather questions or reports should be directed to the Duty Forecaster at 5-1255.