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
1330 PST Wed Oct 7 2026
Official Sunrise Thursday 546 PST
Official Sunset Thursday 1717 PST
Forecaster: J Wood
.Forecast Summary...Conditions remain warm and dry until the end of the week due to a broad ridge in place. Light and variable winds persist until Friday when they are displaced by strong gusts peaking near advisory level on Saturday. A low-pressure system from the Pacific Northwest will combine with the remnants of Pacific tropical cyclone Rachel, deepening the low and bringing ample moisture to Southern Nevada. A drop in temperature and persistent rain is expected across the region with the greatest accumulations along high terrain.
---For The Nevada National Security Site---
.Tonight...Mostly Clear. Northerly winds 5 to 15 mph becoming light and variable overnight. Low temperatures 40 to 48 on the mesas, 47 to 55 on the dry lakes, 64 to 72 at the lower elevations, 67 at Mercury.
.Thursday...Mostly Sunny. Northerly winds 5 to 20 mph. High temperatures 68 to 76 on the mesas, 89 to 97 at the lower elevations, 92 at Mercury.
.Thursday Night...Mostly Clear. Northerly winds 5 to 15 mph becoming light and variable overnight. Low temperatures 41 to 49 on the mesas, 47 to 55 on the dry lakes, 64 to 72 at the lower elevations, 67 at Mercury.
.Friday...Mostly Sunny. South Southwesterly winds 10 to 20 mph gusting to 25 mph. Low temperatures 41 to 49 on the mesas, 47 to 55 on the dry lakes, 66 to 74 at the lower elevations, 68 at Mercury. High temperatures 65 to 73 on the mesas, 86 to 94 at the lower elevations, 90 at Mercury.
.Saturday...Mostly Cloudy with a slight chance of rain. Southerly winds 20 to 30 mph gusting to 45 mph. Low temperatures 35 to 43 on the mesas, 46 to 54 on the dry lakes, 64 to 72 at the lower elevations, 67 at Mercury. High temperatures 58 to 66 on the mesas, 79 to 87 at the lower elevations, 82 at Mercury.
.Sunday...Mostly Cloudy with a chance of rain. Southerly winds 20 to 30 mph gusting to 40 mph. Low temperatures 30 to 38 on the mesas, 41 to 49 on the dry lakes, 58 to 66 at the lower elevations, 60 at Mercury. High temperatures 48 to 56 on the mesas, 69 to 77 at the lower elevations, 73 at Mercury.
.Monday...Partly Cloudy with a slight chance of rain. Southerly winds 10 to 20 mph gusting to 30 mph. Low temperatures 26 to 34 on the mesas, 36 to 44 on the dry lakes, 54 to 62 at the lower elevations, 56 at Mercury. High temperatures 44 to 52 on the mesas, 65 to 73 at the lower elevations, 68 at Mercury.
.Tuesday...Mostly Sunny with a slight chance of rain. Southerly winds 5 to 20 mph. Low temperatures 25 to 33 on the mesas, 33 to 41 on the dry lakes, 51 to 59 at the lower elevations, 54 at Mercury. High temperatures 45 to 53 on the mesas, 65 to 73 at the lower elevations, 68 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
1330 PST Wed Oct 7 2026
Official Sunrise Thursday 546 PST
Official Sunset Thursday 1717 PST
Forecaster: J Wood
NNSS Forecast Weather Threat Matrix
Thu 10/08
Fri 10/09
Sat 10/10
Sun 10/11
Mon 10/12
Tue 10/13
Warm.
Warm.
Wind.
Wind/Rain.
Wind.
None.
Threat/Impacts Legend
None/Low
Minor
Moderate
Major
.Forecast Summary...Conditions remain warm and dry until the end of the week due to a broad ridge in place. Light and variable winds persist until Friday when they are displaced by strong gusts peaking near advisory level on Saturday. A low-pressure system from the Pacific Northwest will combine with the remnants of Pacific tropical cyclone Rachel, deepening the low and bringing ample moisture to Southern Nevada. A drop in temperature and persistent rain is expected across the region with the greatest accumulations along high terrain.
---For The Nevada National Security Site---
.Tonight...Mostly Clear. Northerly winds 5 to 15 mph becoming light and variable overnight. Low temperatures 40 to 48 on the mesas, 47 to 55 on the dry lakes, 64 to 72 at the lower elevations, 67 at Mercury.
.Thursday...Mostly Sunny. Northerly winds 5 to 20 mph. High temperatures 68 to 76 on the mesas, 89 to 97 at the lower elevations, 92 at Mercury.
.Thursday Night...Mostly Clear. Northerly winds 5 to 15 mph becoming light and variable overnight. Low temperatures 41 to 49 on the mesas, 47 to 55 on the dry lakes, 64 to 72 at the lower elevations, 67 at Mercury.
.Friday...Mostly Sunny. South Southwesterly winds 10 to 20 mph gusting to 25 mph. Low temperatures 41 to 49 on the mesas, 47 to 55 on the dry lakes, 66 to 74 at the lower elevations, 68 at Mercury. High temperatures 65 to 73 on the mesas, 86 to 94 at the lower elevations, 90 at Mercury.
.Saturday...Mostly Cloudy with a slight chance of rain. Southerly winds 20 to 30 mph gusting to 45 mph. Low temperatures 35 to 43 on the mesas, 46 to 54 on the dry lakes, 64 to 72 at the lower elevations, 67 at Mercury. High temperatures 58 to 66 on the mesas, 79 to 87 at the lower elevations, 82 at Mercury.
.Sunday...Mostly Cloudy with a chance of rain. Southerly winds 20 to 30 mph gusting to 40 mph. Low temperatures 30 to 38 on the mesas, 41 to 49 on the dry lakes, 58 to 66 at the lower elevations, 60 at Mercury. High temperatures 48 to 56 on the mesas, 69 to 77 at the lower elevations, 73 at Mercury.
.Monday...Partly Cloudy with a slight chance of rain. Southerly winds 10 to 20 mph gusting to 30 mph. Low temperatures 26 to 34 on the mesas, 36 to 44 on the dry lakes, 54 to 62 at the lower elevations, 56 at Mercury. High temperatures 44 to 52 on the mesas, 65 to 73 at the lower elevations, 68 at Mercury.
.Tuesday...Mostly Sunny with a slight chance of rain. Southerly winds 5 to 20 mph. Low temperatures 25 to 33 on the mesas, 33 to 41 on the dry lakes, 51 to 59 at the lower elevations, 54 at Mercury. High temperatures 45 to 53 on the mesas, 65 to 73 at the lower elevations, 68 at Mercury.
-End Forecast---J Wood
Weather questions or reports should be directed to the Duty Forecaster at 5-1255.