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 Thu Jan 29 2026
Official Sunrise Friday 648 PST
Official Sunset Friday 1707 PST
Forecaster: J Wood
.Forecast Summary...High pressure will be over the region through next week. There will be some high clouds at times otherwise; afternoon temperatures will be above normal and winds will be generally light. Morning lows will be seasonably cool. This extended period of dry weather could finally end just beyond the forecast period.
---For The Nevada National Security Site---
.Tonight...Partly cloudy. Northeast winds 5 to 15 mph. Low temperatures 30 to 37 on the mesas, 25 to 30 on the dry lakes, 37 to 44 at the lower elevations, 43 at Mercury.
.Friday...Mostly sunny. Northeast winds 5 to 15 mph. High temperatures 47 to 54 on the mesas, 61 to 68 at the lower elevations 64 at Mercury.
.Friday Night...Mostly clear. Northeast winds 5 to 15 mph. Low temperatures 34 to 42 on the mesas, 25 to 30 on the dry lakes, 38 to 45 at the lower elevations, 44 at Mercury.
.Saturday...Partly cloudy. Northeast winds 5 to 15 mph. High temperatures 48 to 55 on the mesas, 63 to 70 at the lower elevations 66 at Mercury.
.Sunday...Partly cloudy. Southeast winds 5 to 15 mph. Low temperatures 35 to 43 on the mesas, 25 to 30 on the dry lakes, 40 to 47 at the lower elevations, 47 at Mercury. High temperatures 50 to 57 on the mesas, 64 to 71 at the lower elevations 67 at Mercury.
.Monday...Partly cloudy. Northeast winds 5 to 15 mph. Low temperatures 32 to 40 on the mesas, 35 to 40 on the dry lakes, 42 to 49 at the lower elevations, 48 at Mercury. High temperatures 50 to 57 on the mesas, 64 to 71 at the lower elevations 68 at Mercury.
.Tuesday...Mostly sunny. Northeast winds 10 to 20 mph. Low temperatures 32 to 40 on the mesas, 35 to 40 on the dry lakes, 41 to 48 at the lower elevations, 46 at Mercury. High temperatures 50 to 57 on the mesas, 63 to 70 at the lower elevations 66 at Mercury.
.Wednesday...Mostly sunny. North winds 10 to 20 mph. Low temperatures 32 to 40 on the mesas, 35 to 40 on the dry lakes, 41 to 48 at the lower elevations, 44 at Mercury. High temperatures 48 to 55 on the mesas, 62 to 69 at the lower elevations 65 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 Thu Jan 29 2026
Official Sunrise Friday 648 PST
Official Sunset Friday 1707 PST
Forecaster: J Wood
NNSS Forecast Weather Threat Matrix
Fri 1/30
Sat 1/31
Sun 2/01
Mon 2/02
Tue 2/03
Wed 2/04
None.
None.
None.
None.
None.
None.
Threat/Impacts Legend
None/Low
Minor
Moderate
Major
.Forecast Summary...High pressure will be over the region through next week. There will be some high clouds at times otherwise; afternoon temperatures will be above normal and winds will be generally light. Morning lows will be seasonably cool. This extended period of dry weather could finally end just beyond the forecast period.
---For The Nevada National Security Site---
.Tonight...Partly cloudy. Northeast winds 5 to 15 mph. Low temperatures 30 to 37 on the mesas, 25 to 30 on the dry lakes, 37 to 44 at the lower elevations, 43 at Mercury.
.Friday...Mostly sunny. Northeast winds 5 to 15 mph. High temperatures 47 to 54 on the mesas, 61 to 68 at the lower elevations 64 at Mercury.
.Friday Night...Mostly clear. Northeast winds 5 to 15 mph. Low temperatures 34 to 42 on the mesas, 25 to 30 on the dry lakes, 38 to 45 at the lower elevations, 44 at Mercury.
.Saturday...Partly cloudy. Northeast winds 5 to 15 mph. High temperatures 48 to 55 on the mesas, 63 to 70 at the lower elevations 66 at Mercury.
.Sunday...Partly cloudy. Southeast winds 5 to 15 mph. Low temperatures 35 to 43 on the mesas, 25 to 30 on the dry lakes, 40 to 47 at the lower elevations, 47 at Mercury. High temperatures 50 to 57 on the mesas, 64 to 71 at the lower elevations 67 at Mercury.
.Monday...Partly cloudy. Northeast winds 5 to 15 mph. Low temperatures 32 to 40 on the mesas, 35 to 40 on the dry lakes, 42 to 49 at the lower elevations, 48 at Mercury. High temperatures 50 to 57 on the mesas, 64 to 71 at the lower elevations 68 at Mercury.
.Tuesday...Mostly sunny. Northeast winds 10 to 20 mph. Low temperatures 32 to 40 on the mesas, 35 to 40 on the dry lakes, 41 to 48 at the lower elevations, 46 at Mercury. High temperatures 50 to 57 on the mesas, 63 to 70 at the lower elevations 66 at Mercury.
.Wednesday...Mostly sunny. North winds 10 to 20 mph. Low temperatures 32 to 40 on the mesas, 35 to 40 on the dry lakes, 41 to 48 at the lower elevations, 44 at Mercury. High temperatures 48 to 55 on the mesas, 62 to 69 at the lower elevations 65 at Mercury.
-End Forecast---J Wood
Weather questions or reports should be directed to the Duty Forecaster at 5-1255.