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
0700 PST Fri Jun 12 2026
Official Sunset Friday 1904 PST
Official Sunrise Saturday 424 PST
Forecaster: J Callanan
.Forecast Summary...A stagnant weather pattern will allow temperatures to climb above normal over the next week. During the forecast period, daily southwest gusts will strengthen during afternoon and subside overnight. With little moisture throughout the Desert Southwest and the lack of any large-scale features, the region will see hot, dry, and sunny days.
---For The Nevada National Security Site---
.Today...Mostly sunny and hot. Northeast winds 10 to 20 mph in the morning. Southwest winds 10 to 25 mph with 30 mph gusts in the afternoon. High temperatures 81 to 88 on the mesas, 96 to 104 at the lower elevations, 99 at Mercury.
.Tonight...Mostly clear. Evening southwest winds 5 to 15 mph becoming northeast 5 to 15 mph overnight. Low temperatures 62 to 69 on the mesas, 61 to 66 on the dry lakes, 67 to 75 at the lower elevations, 74 at Mercury.
.Saturday...Mostly sunny and hot. Southwest winds 10 to 25 mph with 30 mph gusts. Low temperatures 62 to 69 on the mesas, 61 to 66 on the dry lakes, 67 to 75 at the lower elevations, 74 at Mercury. High temperatures 81 to 88 on the mesas, 96 to 104 at the lower elevations, 99 at Mercury.
.Saturday Night...Partly cloudy. Southwest winds 10 to 20 mph becoming northeast 5 to 15 mph overnight. Low temperatures 63 to 70 on the mesas, 61 to 66 on the dry lakes, 67 to 74 at the lower elevations, 72 at Mercury.
.Sunday...Partly cloudy. Southwest winds 10 to 25 mph with 30 mph gusts. Low temperatures 61 to 68 on the mesas, 60 to 65 on the dry lakes, 66 to 73 at the lower elevations, 73 at Mercury. High temperatures 80 to 87 on the mesas, 95 to 102 at the lower elevations, 98 at Mercury.
.Monday...Mostly sunny and hot. Southwest winds 10 to 25 mph. Low temperatures 62 to 69 on the mesas, 61 to 66 on the dry lakes, 68 to 75 at the lower elevations, 74 at Mercury. High temperatures 81 to 88 on the mesas, 96 to 104 at the lower elevations, 101 at Mercury.
.Tuesday...Mostly sunny and hot. Southwest winds 10 to 25 mph. Low temperatures 64 to 71 on the mesas, 63 to 68 on the dry lakes, 70 to 77 at the lower elevations, 76 at Mercury. High temperatures 83 to 90 on the mesas, 98 to 106 at the lower elevations, 103 at Mercury.
.Wednesday...Partly cloudy and hot. Southwest winds 10 to 25 mph. Low temperatures 64 to 71 on the mesas, 63 to 68 on the dry lakes, 70 to 77 at the lower elevations, 76 at Mercury. High temperatures 82 to 89 on the mesas, 97 to 105 at the lower elevations, 102 at Mercury.
.Thursday...Partly cloudy and hot. Southwest winds 10 to 25 mph. Low temperatures 60 to 67 on the mesas, 59 to 64 on the dry lakes, 66 to 73 at the lower elevations, 72 at Mercury. High temperatures 78 to 85 on the mesas, 93 to 101 at the lower elevations, 98 at Mercury.
-End Forecast---J Callanan
Weather questions or reports should be directed to the Duty Forecaster at 5-1255.
Air Resources Laboratory/Special Operations and Research Division
0700 PST Fri Jun 12 2026
Official Sunset Friday 1904 PST
Official Sunrise Saturday 424 PST
Forecaster: J Callanan
NNSS Forecast Weather Threat Matrix
Fri 6/12
Sat 6/13
Sun 6/14
Mon 6/15
Tue 6/16
Wed 6/17
Thu 6/18
Heat
Heat
Heat
Heat
Heat
Heat
Heat
Threat/Impacts Legend
None/Low
Minor
Moderate
Major
.Forecast Summary...A stagnant weather pattern will allow temperatures to climb above normal over the next week. During the forecast period, daily southwest gusts will strengthen during afternoon and subside overnight. With little moisture throughout the Desert Southwest and the lack of any large-scale features, the region will see hot, dry, and sunny days.
---For The Nevada National Security Site---
.Today...Mostly sunny and hot. Northeast winds 10 to 20 mph in the morning. Southwest winds 10 to 25 mph with 30 mph gusts in the afternoon. High temperatures 81 to 88 on the mesas, 96 to 104 at the lower elevations, 99 at Mercury.
.Tonight...Mostly clear. Evening southwest winds 5 to 15 mph becoming northeast 5 to 15 mph overnight. Low temperatures 62 to 69 on the mesas, 61 to 66 on the dry lakes, 67 to 75 at the lower elevations, 74 at Mercury.
.Saturday...Mostly sunny and hot. Southwest winds 10 to 25 mph with 30 mph gusts. Low temperatures 62 to 69 on the mesas, 61 to 66 on the dry lakes, 67 to 75 at the lower elevations, 74 at Mercury. High temperatures 81 to 88 on the mesas, 96 to 104 at the lower elevations, 99 at Mercury.
.Saturday Night...Partly cloudy. Southwest winds 10 to 20 mph becoming northeast 5 to 15 mph overnight. Low temperatures 63 to 70 on the mesas, 61 to 66 on the dry lakes, 67 to 74 at the lower elevations, 72 at Mercury.
.Sunday...Partly cloudy. Southwest winds 10 to 25 mph with 30 mph gusts. Low temperatures 61 to 68 on the mesas, 60 to 65 on the dry lakes, 66 to 73 at the lower elevations, 73 at Mercury. High temperatures 80 to 87 on the mesas, 95 to 102 at the lower elevations, 98 at Mercury.
.Monday...Mostly sunny and hot. Southwest winds 10 to 25 mph. Low temperatures 62 to 69 on the mesas, 61 to 66 on the dry lakes, 68 to 75 at the lower elevations, 74 at Mercury. High temperatures 81 to 88 on the mesas, 96 to 104 at the lower elevations, 101 at Mercury.
.Tuesday...Mostly sunny and hot. Southwest winds 10 to 25 mph. Low temperatures 64 to 71 on the mesas, 63 to 68 on the dry lakes, 70 to 77 at the lower elevations, 76 at Mercury. High temperatures 83 to 90 on the mesas, 98 to 106 at the lower elevations, 103 at Mercury.
.Wednesday...Partly cloudy and hot. Southwest winds 10 to 25 mph. Low temperatures 64 to 71 on the mesas, 63 to 68 on the dry lakes, 70 to 77 at the lower elevations, 76 at Mercury. High temperatures 82 to 89 on the mesas, 97 to 105 at the lower elevations, 102 at Mercury.
.Thursday...Partly cloudy and hot. Southwest winds 10 to 25 mph. Low temperatures 60 to 67 on the mesas, 59 to 64 on the dry lakes, 66 to 73 at the lower elevations, 72 at Mercury. High temperatures 78 to 85 on the mesas, 93 to 101 at the lower elevations, 98 at Mercury.
-End Forecast---J Callanan
Weather questions or reports should be directed to the Duty Forecaster at 5-1255.