Nevada National Security Site Weather Forecast
Air Resources Laboratory/Special Operations and Research Division
1430 PST Mon Feb 2 2026
Official Sunrise Tuesday 645 PST
Official Sunset Tuesday 1712 PST
Forecaster: J Wood
NNSS Forecast Weather Threat Matrix
Tue 2/03
Wed 2/04
Thu 2/05
Fri 2/06
Sat 2/07
Sun 2/08
Wind.
Wind.
None.
None.
None.
None.
Threat/Impacts Legend
None/Low
Minor
Moderate
Major
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Forecast Summary...High pressure will provide above normal afternoon temperatures under mostly sunny skies this week. Breezy northerly winds will also be observed. The high will shift east this weekend allowing an area of low pressure to approach from the south. Currently, its main effects look to be and increase in clouds and a cooling trend. There could also be a few light showers. Looking ahead to next week, a return to more typical winter weather should happen with several systems traversing our area.
---For The Nevada National Security Site---
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Tonight...Clear. Northeast winds 10 to 20 mph. Low temperatures 30 to 48 on the mesas, 25 to 30 on the dry lakes, 41 to 48 at the lower elevations, 48 at Mercury
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Tuesday...Sunny. Northeast winds 10 to 20 mph with gusts to 30 mph. High temperatures 52 to 59 on the mesas, 67 to 74 at the lower elevations 71 at Mercury.
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Tuesday Night...Clear. Northeast winds 10 to 20 mph. Low temperatures 32 to 40 on the mesas, 25 to 30 on the dry lakes, 41 to 48 at the lower elevations, 47 at Mercury.
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Wednesday...Mostly sunny. North winds 10 to 20 mph with gusts to 30 mph. High temperatures 50 to 57 on the mesas, 67 to 74 at the lower elevations 70 at Mercury.
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Thursday...Mostly sunny. Northeast winds 10 to 20 mph. Low temperatures 30 to 38 on the mesas, 30 to 35 on the dry lakes, 41 to 48 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.
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Friday...Mostly cloudy with a slight chance of showers. Southeast winds 10 to 20 mph. Low temperatures 30 to 38 on the mesas, 40 to 45 on the dry lakes, 41 to 48 at the lower elevations, 45 at Mercury. High temperatures 47 to 54 on the mesas, 60 to 68 at the lower elevations 64 at Mercury.
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Saturday...Partly cloudy with a slight chance of showers. South winds 10 to 20 mph. Low temperatures 28 to 35 on the mesas, 37 to 42 on the dry lakes, 37 to 44 at the lower elevations, 43 at Mercury. High temperatures 45 to 52 on the mesas, 58 to 65 at the lower elevations 61 at Mercury.
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Sunday...Partly cloudy. North winds 10 to 20 mph. Low temperatures 25 to 32 on the mesas, 35 to 40 on the dry lakes, 36 to 42 at the lower elevations, 41 at Mercury. High temperatures 45 to 52 on the mesas, 58 to 65 at the lower elevations 62 at Mercury.
-End Forecast---J Wood
Weather questions or reports should be directed to the Duty Forecaster at 5-1255.