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 Tue Mar 31 2026
Official Sunrise Wednesday 530 PST
Official Sunset Wednesday 1807 PST
Forecaster: J Wood
.Forecast Summary...Gusty winds have developed in advance of a Pacific system that will pass through our area tonight. Scattered showers with a slight chance of thunderstorms will develop this evening as it passes through. Precipitation will be generally light and in the form of rain even for the higher terrain. Conditions will improve early tomorrow morning as the system head off to the east. Another system will pass through on Thursday. It will not have much moisture to work with but it will bring gusty northerly winds and cooler temperatures to our area. High pressure will provide a warming trend under mostly sunny skies this weekend.
---For The Nevada National Security Site---
.Tonight...Mostly cloudy with scattered showers and a slight chance of thunderstorms. Southwest winds 15 to 30 mph in the evening decreasing to 5 to 15 mph overnight. Low temperatures 34 to 41 on the mesas, 45 to 50 on the dry lakes, 47 to 54 at the lower elevations, 52 at Mercury.
.Wednesday...Partly cloudy. Variable winds to 10 mph in the morning becoming southwest 10 to 25 mph in the afternoon. High temperatures 51 to 59 on the mesas, 66 to 73 at the lower elevations, 69 at Mercury.
.Wednesday Night...Partly cloudy. Variable winds 5 to 15 mph. Low temperatures 35 to 43 on the mesas, 50 to 55 on the dry lakes, 50 to 57 at the lower elevations, 55 at Mercury.
.Thursday...Partly cloudy and windy. Southwest winds 15 to 30 mph in the morning becoming northwest 15 to 25 mph with gusts to 35 mph in the afternoon. High temperatures 52 to 59 on the mesas, 67 to 74 at the lower elevations, 70 at Mercury.
.Friday...Mostly sunny. Northeast winds 10 to 20 mph. Low temperatures 30 to 37 on the mesas, 40 to 45 on the dry lakes, 40 to 47 at the lower elevations, 45 at Mercury. High temperatures 50 to 57 on the mesas, 64 to 71 at the lower elevations, 67 at Mercury.
.Saturday...Mostly sunny. Northeast winds 5 to 15 mph. Low temperatures 32 to 39 on the mesas, 35 to 40 on the dry lakes, 40 to 47 at the lower elevations, 47 at Mercury. High temperatures 55 to 63 on the mesas, 70 to 77 at the lower elevations, 73 at Mercury.
.Sunday...Mostly sunny. Southwest winds 5 to 15 mph. Low temperatures 34 to 41 on the mesas, 35 to 40 on the dry lakes, 43 to 51 at the lower elevations, 50 at Mercury. High temperatures 60 to 67 on the mesas, 74 to 82 at the lower elevations, 78 at Mercury.
.Monday...Partly cloudy. Southwest winds 10 to 20 mph. Low temperatures 34 to 42 on the mesas, 40 to 45 on the dry lakes, 48 to 55 at the lower elevations, 54 at Mercury. High temperatures 63 to 70 on the mesas, 77 to 84 at the lower elevations, 80 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
1400 PST Tue Mar 31 2026
Official Sunrise Wednesday 530 PST
Official Sunset Wednesday 1807 PST
Forecaster: J Wood
.A Wind Advisory has been issued until 8 PM on March 31, 2026..
NNSS Forecast Weather Threat Matrix
Wed 4/01
Thu 4/02
Fri 4/03
Sat 4/04
Sun 4/05
Mon 4/06
None.
Wind.
None.
None.
None.
None.
Threat/Impacts Legend
None/Low
Minor
Moderate
Major
.Forecast Summary...Gusty winds have developed in advance of a Pacific system that will pass through our area tonight. Scattered showers with a slight chance of thunderstorms will develop this evening as it passes through. Precipitation will be generally light and in the form of rain even for the higher terrain. Conditions will improve early tomorrow morning as the system head off to the east. Another system will pass through on Thursday. It will not have much moisture to work with but it will bring gusty northerly winds and cooler temperatures to our area. High pressure will provide a warming trend under mostly sunny skies this weekend.
---For The Nevada National Security Site---
.Tonight...Mostly cloudy with scattered showers and a slight chance of thunderstorms. Southwest winds 15 to 30 mph in the evening decreasing to 5 to 15 mph overnight. Low temperatures 34 to 41 on the mesas, 45 to 50 on the dry lakes, 47 to 54 at the lower elevations, 52 at Mercury.
.Wednesday...Partly cloudy. Variable winds to 10 mph in the morning becoming southwest 10 to 25 mph in the afternoon. High temperatures 51 to 59 on the mesas, 66 to 73 at the lower elevations, 69 at Mercury.
.Wednesday Night...Partly cloudy. Variable winds 5 to 15 mph. Low temperatures 35 to 43 on the mesas, 50 to 55 on the dry lakes, 50 to 57 at the lower elevations, 55 at Mercury.
.Thursday...Partly cloudy and windy. Southwest winds 15 to 30 mph in the morning becoming northwest 15 to 25 mph with gusts to 35 mph in the afternoon. High temperatures 52 to 59 on the mesas, 67 to 74 at the lower elevations, 70 at Mercury.
.Friday...Mostly sunny. Northeast winds 10 to 20 mph. Low temperatures 30 to 37 on the mesas, 40 to 45 on the dry lakes, 40 to 47 at the lower elevations, 45 at Mercury. High temperatures 50 to 57 on the mesas, 64 to 71 at the lower elevations, 67 at Mercury.
.Saturday...Mostly sunny. Northeast winds 5 to 15 mph. Low temperatures 32 to 39 on the mesas, 35 to 40 on the dry lakes, 40 to 47 at the lower elevations, 47 at Mercury. High temperatures 55 to 63 on the mesas, 70 to 77 at the lower elevations, 73 at Mercury.
.Sunday...Mostly sunny. Southwest winds 5 to 15 mph. Low temperatures 34 to 41 on the mesas, 35 to 40 on the dry lakes, 43 to 51 at the lower elevations, 50 at Mercury. High temperatures 60 to 67 on the mesas, 74 to 82 at the lower elevations, 78 at Mercury.
.Monday...Partly cloudy. Southwest winds 10 to 20 mph. Low temperatures 34 to 42 on the mesas, 40 to 45 on the dry lakes, 48 to 55 at the lower elevations, 54 at Mercury. High temperatures 63 to 70 on the mesas, 77 to 84 at the lower elevations, 80 at Mercury.
-End Forecast---J Wood
Weather questions or reports should be directed to the Duty Forecaster at 5-1255.