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
1400 PST Fri Jul 11 2025
Official Sunrise Saturday 435 PST
Official Sunset Saturday 1905 PST
Forecaster: R Lantrip
.Forecast Summary...Periods of elevated haze and smoke issuing from the Gothic Fire burning off Site. Very dry conditions will continue through the end of the forecast period. Daytime high temperatures will run 6 to 9 degrees above seasonal norms. Breezy southerly to southwesterly winds will pick up each afternoon before decreasing overnight, following the typical summertime diurnal pattern. Early indications show a weak surge of monsoonal moisture next week. We will continue to monitor the situation as it evolves.
---For The Nevada National Security Site---
.Tonight...Mostly clear. Southerly winds at 10 to 20 mph late this afternoon and early evening, becoming variable at 5 to 15 mph overnight and early morning. Low temperatures 50 to 58 on the mesas, 53 to 63 on the dry lakes, 68 to 78 at the lower elevations, 76 in Mercury.
.Saturday...Sunny and hot. Southwest winds at 10 to 25 mph in the afternoon and early evening. High temperatures 83 to 90 on the mesas, 97 to 105 at the lower elevations, 101 at Mercury.
.Saturday Night...Mostly clear with variable winds to 10 mph overnight and early morning. Low temperatures 50 to 58 on the mesas, 53 to 63 on the dry lakes, 67 to 77 at the lower elevations, 76 in Mercury.
.Sunday...Sunny and hot. Variable winds to 10 mph overnight and early morning, becoming southwest 10 to 25 mph in the afternoon and early evening. High temperatures 84 to 91 on the mesas, 98 to 106 at the lower elevations, 102 at Mercury.
.Monday...Mostly sunny and hot. Variable winds to 10 mph overnight and early morning, becoming southwest at 10 to 25 mph in the afternoon and early evening. Low temperatures 52 to 62 on the mesas, 54 to 64 on the dry lakes, 68 to 78 at the lower elevations, 77 in Mercury. High temperatures 84 to 91 on the mesas, 98 to 106 at the lower elevations, 102 at Mercury.
.Tuesday...Mostly sunny. Variable winds to 10 mph overnight and early morning, becoming southwest at 10 to 25 mph in the afternoon and early evening. Low temperatures 55 to 65 on the mesas, 58 to 68 on the dry lakes, 71 to 80 at the lower elevations, 79 in Mercury. High temperatures 82 to 89 on the mesas, 96 to 104 at the lower elevations, 100 at Mercury.
.Wednesday...Partly cloudy with a slight chance of thunderstorms. Variable winds to 10 mph overnight and early morning, becoming southwest at 10 to 25 mph in the afternoon and early evening. Low temperatures 55 to 65 on the mesas, 58 to 68 on the dry lakes, 71 to 81 at the lower elevations, 80 in Mercury. High temperatures 81 to 88 on the mesas, 95 to 103 at the lower elevations, 98 at Mercury.
.Thursday...Partly cloudy with a slight chance of thunderstorms. Variable winds to 10 mph overnight and early morning, becoming southwest at 10 to 25 mph in the afternoon and early evening. Low temperatures 55 to 65 on the mesas, 58 to 68 on the dry lakes, 71 to 81 at the lower elevations, 80 in Mercury. High temperatures 79 to 87 on the mesas, 94 to 102 at the lower elevations, 98 at Mercury.
-End Forecast---R Lantrip
Weather questions or reports should be directed to the Duty Forecaster at 5-1255.
Air Resources Laboratory/Special Operations and Research Division
1400 PST Fri Jul 11 2025
Official Sunrise Saturday 435 PST
Official Sunset Saturday 1905 PST
Forecaster: R Lantrip
NNSS Forecast Weather Threat Matrix
Sat 7/12
Sun 7/13
Mon 7/14
Tue 7/15
Wed 7/16
Thu 7/17
Heat
Heat
Heat
Heat
Thunderstorms
Thunderstorms
Threat/Impacts Legend
None/Low
Minor
Moderate
Major
.Forecast Summary...Periods of elevated haze and smoke issuing from the Gothic Fire burning off Site. Very dry conditions will continue through the end of the forecast period. Daytime high temperatures will run 6 to 9 degrees above seasonal norms. Breezy southerly to southwesterly winds will pick up each afternoon before decreasing overnight, following the typical summertime diurnal pattern. Early indications show a weak surge of monsoonal moisture next week. We will continue to monitor the situation as it evolves.
---For The Nevada National Security Site---
.Tonight...Mostly clear. Southerly winds at 10 to 20 mph late this afternoon and early evening, becoming variable at 5 to 15 mph overnight and early morning. Low temperatures 50 to 58 on the mesas, 53 to 63 on the dry lakes, 68 to 78 at the lower elevations, 76 in Mercury.
.Saturday...Sunny and hot. Southwest winds at 10 to 25 mph in the afternoon and early evening. High temperatures 83 to 90 on the mesas, 97 to 105 at the lower elevations, 101 at Mercury.
.Saturday Night...Mostly clear with variable winds to 10 mph overnight and early morning. Low temperatures 50 to 58 on the mesas, 53 to 63 on the dry lakes, 67 to 77 at the lower elevations, 76 in Mercury.
.Sunday...Sunny and hot. Variable winds to 10 mph overnight and early morning, becoming southwest 10 to 25 mph in the afternoon and early evening. High temperatures 84 to 91 on the mesas, 98 to 106 at the lower elevations, 102 at Mercury.
.Monday...Mostly sunny and hot. Variable winds to 10 mph overnight and early morning, becoming southwest at 10 to 25 mph in the afternoon and early evening. Low temperatures 52 to 62 on the mesas, 54 to 64 on the dry lakes, 68 to 78 at the lower elevations, 77 in Mercury. High temperatures 84 to 91 on the mesas, 98 to 106 at the lower elevations, 102 at Mercury.
.Tuesday...Mostly sunny. Variable winds to 10 mph overnight and early morning, becoming southwest at 10 to 25 mph in the afternoon and early evening. Low temperatures 55 to 65 on the mesas, 58 to 68 on the dry lakes, 71 to 80 at the lower elevations, 79 in Mercury. High temperatures 82 to 89 on the mesas, 96 to 104 at the lower elevations, 100 at Mercury.
.Wednesday...Partly cloudy with a slight chance of thunderstorms. Variable winds to 10 mph overnight and early morning, becoming southwest at 10 to 25 mph in the afternoon and early evening. Low temperatures 55 to 65 on the mesas, 58 to 68 on the dry lakes, 71 to 81 at the lower elevations, 80 in Mercury. High temperatures 81 to 88 on the mesas, 95 to 103 at the lower elevations, 98 at Mercury.
.Thursday...Partly cloudy with a slight chance of thunderstorms. Variable winds to 10 mph overnight and early morning, becoming southwest at 10 to 25 mph in the afternoon and early evening. Low temperatures 55 to 65 on the mesas, 58 to 68 on the dry lakes, 71 to 81 at the lower elevations, 80 in Mercury. High temperatures 79 to 87 on the mesas, 94 to 102 at the lower elevations, 98 at Mercury.
-End Forecast---R Lantrip
Weather questions or reports should be directed to the Duty Forecaster at 5-1255.