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 Thu Sep 3 2026
Official Sunrise Friday 518 PST
Official Sunset Friday 1808 PST
Forecaster: J Wood
.Forecast Summary...An area of low pressure in the Pacific Northwest continues to bring gusty winds to the site this evening and tomorrow. On Sunday, southwesterly upper-level flow will bring some moisture from Hurricane Maria into southern Nevada but likely miss the site, abating the risk for showers over the area during the holiday weekend. Winds calm down early next week as the system weakens and temperatures rebound slightly.
---For The Nevada National Security Site---
.Tonight...Clear. Southerly winds 10 to 20 mph gusting to 30 mph overnight. Low temperatures 45 to 53 on the mesas, 53 to 59 on the dry lakes, 63 to 71 at the lower elevations, 70 at Mercury.
.Friday...Sunny. Southerly winds 20 to 30 mph gusting to 42 mph. High temperatures 67 to 75 on the mesas, 86 to 94 at the lower elevations, 87 at Mercury.
.Friday Night...Clear. Southerly winds 10 to 25 mph overnight. Low temperatures 43 to 51 on the mesas, 52 to 60 on the dry lakes, 61 to 69 at the lower elevations, 68 at Mercury.
.Saturday...Sunny. Southerly winds 15 to 25 mph gusting to 35 mph. High temperatures 68 to 76 on the mesas, 87 to 95 at the lower elevations, 87 at Mercury.
.Sunday...Mostly Sunny. South Southwesterly winds 15 to 25 mph gusting to 35 mph. Low temperatures 45 to 53 on the mesas, 49 to 55 on the dry lakes, 62 to 70 at the lower elevations, 68 at Mercury. High temperatures 62 to 70 on the mesas, 80 to 88 at the lower elevations, 80 at Mercury.
.Monday...Mostly Sunny. Southerly winds 10 to 20 mph gusting to 30 mph. Low temperatures 44 to 52 on the mesas, 47 to 53 on the dry lakes, 61 to 69 at the lower elevations, 66 at Mercury. High temperatures 66 to 74 on the mesas, 82 to 90 at the lower elevations, 83 at Mercury.
.Tuesday...Mostly Sunny. Southerly winds 10 to 25 mph. Low temperatures 47 to 55 on the mesas, 48 to 54 on the dry lakes, 63 to 71 at the lower elevations, 67 at Mercury. High temperatures 68 to 76 on the mesas, 85 to 93 at the lower elevations, 87 at Mercury.
.Wednesday...Sunny. South Southwesterly winds 10 to 25 mph. Low temperatures 49 to 57 on the mesas, 50 to 56 on the dry lakes, 65 to 73 at the lower elevations, 69 at Mercury. High temperatures 70 to 78 on the mesas, 88 to 96 at the lower elevations, 89 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 Thu Sep 3 2026
Official Sunrise Friday 518 PST
Official Sunset Friday 1808 PST
Forecaster: J Wood
NNSS Forecast Weather Threat Matrix
Fri 9/04
Sat 9/05
Sun 9/06
Mon 9/07
Tue 9/08
Wed 9/09
Wind.
Wind.
Wind.
Wind.
None.
None.
Threat/Impacts Legend
None/Low
Minor
Moderate
Major
.Forecast Summary...An area of low pressure in the Pacific Northwest continues to bring gusty winds to the site this evening and tomorrow. On Sunday, southwesterly upper-level flow will bring some moisture from Hurricane Maria into southern Nevada but likely miss the site, abating the risk for showers over the area during the holiday weekend. Winds calm down early next week as the system weakens and temperatures rebound slightly.
---For The Nevada National Security Site---
.Tonight...Clear. Southerly winds 10 to 20 mph gusting to 30 mph overnight. Low temperatures 45 to 53 on the mesas, 53 to 59 on the dry lakes, 63 to 71 at the lower elevations, 70 at Mercury.
.Friday...Sunny. Southerly winds 20 to 30 mph gusting to 42 mph. High temperatures 67 to 75 on the mesas, 86 to 94 at the lower elevations, 87 at Mercury.
.Friday Night...Clear. Southerly winds 10 to 25 mph overnight. Low temperatures 43 to 51 on the mesas, 52 to 60 on the dry lakes, 61 to 69 at the lower elevations, 68 at Mercury.
.Saturday...Sunny. Southerly winds 15 to 25 mph gusting to 35 mph. High temperatures 68 to 76 on the mesas, 87 to 95 at the lower elevations, 87 at Mercury.
.Sunday...Mostly Sunny. South Southwesterly winds 15 to 25 mph gusting to 35 mph. Low temperatures 45 to 53 on the mesas, 49 to 55 on the dry lakes, 62 to 70 at the lower elevations, 68 at Mercury. High temperatures 62 to 70 on the mesas, 80 to 88 at the lower elevations, 80 at Mercury.
.Monday...Mostly Sunny. Southerly winds 10 to 20 mph gusting to 30 mph. Low temperatures 44 to 52 on the mesas, 47 to 53 on the dry lakes, 61 to 69 at the lower elevations, 66 at Mercury. High temperatures 66 to 74 on the mesas, 82 to 90 at the lower elevations, 83 at Mercury.
.Tuesday...Mostly Sunny. Southerly winds 10 to 25 mph. Low temperatures 47 to 55 on the mesas, 48 to 54 on the dry lakes, 63 to 71 at the lower elevations, 67 at Mercury. High temperatures 68 to 76 on the mesas, 85 to 93 at the lower elevations, 87 at Mercury.
.Wednesday...Sunny. South Southwesterly winds 10 to 25 mph. Low temperatures 49 to 57 on the mesas, 50 to 56 on the dry lakes, 65 to 73 at the lower elevations, 69 at Mercury. High temperatures 70 to 78 on the mesas, 88 to 96 at the lower elevations, 89 at Mercury.
-End Forecast---J Wood
Weather questions or reports should be directed to the Duty Forecaster at 5-1255.