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 Tue Oct 13 2026
Official Sunrise Wednesday 551 PST
Official Sunset Wednesday 1709 PST
Forecaster: J Wood
.Forecast Summary...An area of low pressure is passing through the region this afternoon. A slight chance of showers will continue through this evening before skies clear overnight. The winds will also be on the decrease. This will set the stage for the coldest overnight lows of the season so far. Subfreezing morning lows are possible tomorrow morning, especially for the mesas and dry lakes. Dry northerly flow will remain over the region for the remainder of the week. This will allow temperatures to moderate under mostly sunny skies. Northeasterly winds will be on the increase Thursday and Friday as an area of low pressure passes by to our south.
---For The Nevada National Security Site---
.Tonight...Partly cloudy with a slight chance of evening showers becoming mostly clear overnight. North to northeast winds 15 to 30 mph this evening decreasing to 5 to 15 mph overnight. Low temperatures 26 to 33 on the mesas, 30 to 35 on the dry lakes, 36 to 44 at the lower elevations, 43 at Mercury.
.Wednesday...Mostly sunny. Northeast winds 10 to 20 mph. High temperatures 48 to 56 on the mesas, 64 to 71 at the lower elevations, 67 at Mercury.
.Wednesday Night...Mostly clear. Northeast winds 5 to 15 mph. Low temperatures 31 to 39 on the mesas, 40 to 45 on the dry lakes, 44 to 52 at the lower elevations, 51 at Mercury.
.Thursday...Mostly sunny. Northeast winds 15 to 25 mph with gusts to 35 mph. High temperatures 57 to 64 on the mesas, 72 to 79 at the lower elevations, 75 at Mercury.
.Friday...Mostly sunny. Northeast to east winds 10 to 20 mph with gusts to 30 mph. Low temperatures 38 to 45 on the mesas, 40 to 45 on the dry lakes, 47 to 54 at the lower elevations, 53 at Mercury. High temperatures 57 to 64 on the mesas, 70 to 78 at the lower elevations, 74 at Mercury.
.Saturday...Mostly sunny. Southeast winds 5 to 15 mph. Low temperatures 35 to 43 on the mesas, 40 to 45 on the dry lakes, 49 to 56 at the lower elevations, 55 at Mercury. High temperatures 57 to 64 on the mesas, 72 to 79 at the lower elevations, 75 at Mercury.
.Sunday...Mostly sunny. South winds 10 to 20 mph. Low temperatures 32 to 40 on the mesas, 40 to 45 on the dry lakes, 48 to 55 at the lower elevations, 54 at Mercury. High temperatures 60 to 67 on the mesas, 73 to 81 at the lower elevations, 77 at Mercury.
.Monday...Partly cloudy. Southwest winds 15 to 30 mph. Low temperatures 28 to 35 on the mesas, 45 to 50 on the dry lakes, 51 to 58 at the lower elevations, 57 at Mercury. High temperatures 57 to 64 on the mesas, 71 to 78 at the lower elevations, 74 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 Tue Oct 13 2026
Official Sunrise Wednesday 551 PST
Official Sunset Wednesday 1709 PST
Forecaster: J Wood
NNSS Forecast Weather Threat Matrix
Wed 10/14
Thu 10/15
Fri 10/16
Sat 10/17
Sun 10/18
Mon 10/19
None.
Wind.
Wind.
None.
None.
Wind.
Threat/Impacts Legend
None/Low
Minor
Moderate
Major
.Forecast Summary...An area of low pressure is passing through the region this afternoon. A slight chance of showers will continue through this evening before skies clear overnight. The winds will also be on the decrease. This will set the stage for the coldest overnight lows of the season so far. Subfreezing morning lows are possible tomorrow morning, especially for the mesas and dry lakes. Dry northerly flow will remain over the region for the remainder of the week. This will allow temperatures to moderate under mostly sunny skies. Northeasterly winds will be on the increase Thursday and Friday as an area of low pressure passes by to our south.
---For The Nevada National Security Site---
.Tonight...Partly cloudy with a slight chance of evening showers becoming mostly clear overnight. North to northeast winds 15 to 30 mph this evening decreasing to 5 to 15 mph overnight. Low temperatures 26 to 33 on the mesas, 30 to 35 on the dry lakes, 36 to 44 at the lower elevations, 43 at Mercury.
.Wednesday...Mostly sunny. Northeast winds 10 to 20 mph. High temperatures 48 to 56 on the mesas, 64 to 71 at the lower elevations, 67 at Mercury.
.Wednesday Night...Mostly clear. Northeast winds 5 to 15 mph. Low temperatures 31 to 39 on the mesas, 40 to 45 on the dry lakes, 44 to 52 at the lower elevations, 51 at Mercury.
.Thursday...Mostly sunny. Northeast winds 15 to 25 mph with gusts to 35 mph. High temperatures 57 to 64 on the mesas, 72 to 79 at the lower elevations, 75 at Mercury.
.Friday...Mostly sunny. Northeast to east winds 10 to 20 mph with gusts to 30 mph. Low temperatures 38 to 45 on the mesas, 40 to 45 on the dry lakes, 47 to 54 at the lower elevations, 53 at Mercury. High temperatures 57 to 64 on the mesas, 70 to 78 at the lower elevations, 74 at Mercury.
.Saturday...Mostly sunny. Southeast winds 5 to 15 mph. Low temperatures 35 to 43 on the mesas, 40 to 45 on the dry lakes, 49 to 56 at the lower elevations, 55 at Mercury. High temperatures 57 to 64 on the mesas, 72 to 79 at the lower elevations, 75 at Mercury.
.Sunday...Mostly sunny. South winds 10 to 20 mph. Low temperatures 32 to 40 on the mesas, 40 to 45 on the dry lakes, 48 to 55 at the lower elevations, 54 at Mercury. High temperatures 60 to 67 on the mesas, 73 to 81 at the lower elevations, 77 at Mercury.
.Monday...Partly cloudy. Southwest winds 15 to 30 mph. Low temperatures 28 to 35 on the mesas, 45 to 50 on the dry lakes, 51 to 58 at the lower elevations, 57 at Mercury. High temperatures 57 to 64 on the mesas, 71 to 78 at the lower elevations, 74 at Mercury.
-End Forecast---J Wood
Weather questions or reports should be directed to the Duty Forecaster at 5-1255.