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 Mon Apr 13 2026
Official Sunrise Tuesday 511 PST
Official Sunset Tuesday 1818 PST
Forecaster: J Wood
.Forecast Summary...Scattered showers have developed this afternoon as an area of low pressure is passing through the region. This activity will be on the decrease this evening. Northerly winds will also develop. Tomorrow and Wednesday will be mostly sunny with a warming trend. The next low pressure will move into the area on Thursday and bring gusty winds, rain, and snow showers for the Mesas, and cooler temperatures during the event. Temperatures will quickly rebound over the weekend as a strong area of high pressure moves overhead.
---For The Nevada National Security Site---
.Tonight...Partly cloudy with widely scattered evening showers. Northwest winds 5 to 15 mph. Low temperatures 25 to 32 on the mesas, 33 to 40 on the dry lakes, 35 to 42 at the lower elevations, 40 at Mercury.
.Tuesday...Mostly sunny. North winds 10 to 20 mph in the morning becoming southwest 5 to 15 mph in the afternoon. High temperatures 48 to 55 on the mesas, 67 to 74 at the lower elevations, 68 at Mercury.
.Tuesday Night...Mostly Clear. Northeast winds 5 to 15 mph. Low temperatures 28 to 35 on the mesas, 34 to 41 on the dry lakes, 40 to 47 at the lower elevations, 46 at Mercury.
.Wednesday...Partly Cloudy. Variable winds to 10 mph in the morning becoming southwest 15 to 25 mph in the afternoon. High temperatures 51 to 58 on the mesas, 70 to 77 at the lower elevations, 72 at Mercury.
.Thursday...Mostly Cloudy. Northwest winds 15 to 30 mph. Isolated showers with the snow level near 6,000 ft. Low temperatures 32 to 39 on the mesas, 41 to 48 on the dry lakes, 41 to 48 at the lower elevations, 50 at Mercury. High temperatures 38 to 55 on the mesas, 67 to 74 at the lower elevations, 70 at Mercury.
.Friday...Partly Cloudy. Northeast winds 5 to 10 mph. Low temperatures 22 to 29 on the mesas, 31 to 38 on the dry lakes, 34 to 41 at the lower elevations, 39 at Mercury. High temperatures 44 to 51 on the mesas, 63 to 70 at the lower elevations, 64 at Mercury.
.Saturday...Partly Cloudy. Southwest winds 5 to 10 mph. Low temperatures 26 to 33 on the mesas, 31 to 38 on the dry lakes, 36 to 43 at the lower elevations, 41 at Mercury. High temperatures 50 to 57 on the mesas, 69 to 76 at the lower elevations, 72 at Mercury.
.Sunday...Partly Cloudy. South winds 15 to 30 mph. Low temperatures 33 to 40 on the mesas, 38 to 45 on the dry lakes, 41 to 48 at the lower elevations, 47 at Mercury. High temperatures 55 to 62 on the mesas, 74 to 81 at the lower elevations, 77 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 Mon Apr 13 2026
Official Sunrise Tuesday 511 PST
Official Sunset Tuesday 1818 PST
Forecaster: J Wood
NNSS Forecast Weather Threat Matrix
Tue 4/14
Wed 4/15
Thu 4/16
Fri 4/17
Sat 4/18
Sun 4/19
None.
None.
Wind.
None.
None.
Wind.
Threat/Impacts Legend
None/Low
Minor
Moderate
Major
.Forecast Summary...Scattered showers have developed this afternoon as an area of low pressure is passing through the region. This activity will be on the decrease this evening. Northerly winds will also develop. Tomorrow and Wednesday will be mostly sunny with a warming trend. The next low pressure will move into the area on Thursday and bring gusty winds, rain, and snow showers for the Mesas, and cooler temperatures during the event. Temperatures will quickly rebound over the weekend as a strong area of high pressure moves overhead.
---For The Nevada National Security Site---
.Tonight...Partly cloudy with widely scattered evening showers. Northwest winds 5 to 15 mph. Low temperatures 25 to 32 on the mesas, 33 to 40 on the dry lakes, 35 to 42 at the lower elevations, 40 at Mercury.
.Tuesday...Mostly sunny. North winds 10 to 20 mph in the morning becoming southwest 5 to 15 mph in the afternoon. High temperatures 48 to 55 on the mesas, 67 to 74 at the lower elevations, 68 at Mercury.
.Tuesday Night...Mostly Clear. Northeast winds 5 to 15 mph. Low temperatures 28 to 35 on the mesas, 34 to 41 on the dry lakes, 40 to 47 at the lower elevations, 46 at Mercury.
.Wednesday...Partly Cloudy. Variable winds to 10 mph in the morning becoming southwest 15 to 25 mph in the afternoon. High temperatures 51 to 58 on the mesas, 70 to 77 at the lower elevations, 72 at Mercury.
.Thursday...Mostly Cloudy. Northwest winds 15 to 30 mph. Isolated showers with the snow level near 6,000 ft. Low temperatures 32 to 39 on the mesas, 41 to 48 on the dry lakes, 41 to 48 at the lower elevations, 50 at Mercury. High temperatures 38 to 55 on the mesas, 67 to 74 at the lower elevations, 70 at Mercury.
.Friday...Partly Cloudy. Northeast winds 5 to 10 mph. Low temperatures 22 to 29 on the mesas, 31 to 38 on the dry lakes, 34 to 41 at the lower elevations, 39 at Mercury. High temperatures 44 to 51 on the mesas, 63 to 70 at the lower elevations, 64 at Mercury.
.Saturday...Partly Cloudy. Southwest winds 5 to 10 mph. Low temperatures 26 to 33 on the mesas, 31 to 38 on the dry lakes, 36 to 43 at the lower elevations, 41 at Mercury. High temperatures 50 to 57 on the mesas, 69 to 76 at the lower elevations, 72 at Mercury.
.Sunday...Partly Cloudy. South winds 15 to 30 mph. Low temperatures 33 to 40 on the mesas, 38 to 45 on the dry lakes, 41 to 48 at the lower elevations, 47 at Mercury. High temperatures 55 to 62 on the mesas, 74 to 81 at the lower elevations, 77 at Mercury.
-End Forecast---J Wood
Weather questions or reports should be directed to the Duty Forecaster at 5-1255.