Air Resources Laboratory / Special Operations And Research Division (SORD)
Weather Advisories:
NNSS Fire Weather Forecast
Air Resources Laboratory/Special Operations and Research Division
Valid: Thursday Jul 09 2026 to Sunday Jul 12 2026
Issued At: 0800 PST Thu Jul 09 2026
Forecaster: J Callanan
.Forecast Summary...High pressure over the area will fluctuate throughout the forecast period. Hot and breezy southerly winds will develop during the day and subside overnight. On Sunday, a change in the larger wind pattern will bring monsoonal moisture to the Desert Southwest. This will create a very favorable environment for daily rain showers and thunderstorms next week.
Thursday: Jul 09 2026
Weather: Mostly sunny.
Wind: Northeast winds 10 mph, becoming South winds 10 to 25 mph with gusts up to 30 mph.
High Temperatures: 88 to 95 on the mesas, 98 to 105 at the lower elevations, 102 at Mercury.
Relative Humidity:
13-16% in the morning. 8-13% in the afternoon.
9-14% in the morning. 6-8% in the afternoon.
Mixing Height: 10,000ft AGL
Chance of Wetting Rains: 0%
Chance of Thunder: 0%
Dry Lightning Probability: 0%
Friday: Jul 10 2026
Weather: Mostly sunny.
Wind: Northeast winds 10 mph, becoming South winds 10 to 25 mph with gusts up to 30 mph.
High Temperatures: 88 to 95 on the mesas, 98 to 105 at the lower elevations, 102 at Mercury.
Relative Humidity:
12-15% in the morning. 8-12% in the afternoon.
10-12% in the morning. 5-9% in the afternoon.
Mixing Height: 9,000ft AGL
Chance of Wetting Rains: 0%
Chance of Thunder: 0%
Dry Lightning Probability: 0%
Saturday: Jul 11 2026
Weather: Mostly sunny.
Wind: South winds 10 to 25 mph with gusts up to 30 mph.
High Temperatures: 88 to 95 on the mesas, 99 to 106 at the lower elevations, 103 at Mercury.
Relative Humidity:
13-17% in the morning. 10-15% in the afternoon.
11-14% in the morning. 7-12% in the afternoon.
Mixing Height: 9,000ft AGL
Chance of Wetting Rains: 0%
Chance of Thunder: 0%
Dry Lightning Probability: 0%
Sunday: Jul 12 2026
Weather: Partly cloudy. Slight chance of rain showers.
Wind: South winds 10 to 25 mph with gusts up to 30 mph.
High Temperatures: 87 to 94 on the mesas, 97 to 104 at the lower elevations, 101 at Mercury.
Relative Humidity:
20-23% in the morning. 18-22% in the afternoon.
17-21% in the morning. 13-17% in the afternoon.
Mixing Height: 8,500ft AGL
Chance of Wetting Rains: 5%
Chance of Thunder: 0%
Dry Lightning Probability: 0%
Weather questions or reports should be directed to the Duty Forecaster at 5-1255.
Air Resources Laboratory/Special Operations and Research Division
Valid: Thursday Jul 09 2026 to Sunday Jul 12 2026
Issued At: 0800 PST Thu Jul 09 2026
Forecaster: J Callanan
.Forecast Summary...High pressure over the area will fluctuate throughout the forecast period. Hot and breezy southerly winds will develop during the day and subside overnight. On Sunday, a change in the larger wind pattern will bring monsoonal moisture to the Desert Southwest. This will create a very favorable environment for daily rain showers and thunderstorms next week.
Thursday: Jul 09 2026
Weather: Mostly sunny.
Wind: Northeast winds 10 mph, becoming South winds 10 to 25 mph with gusts up to 30 mph.
High Temperatures: 88 to 95 on the mesas, 98 to 105 at the lower elevations, 102 at Mercury.
Relative Humidity:
13-16% in the morning. 8-13% in the afternoon.
9-14% in the morning. 6-8% in the afternoon.
Mixing Height: 10,000ft AGL
Chance of Wetting Rains: 0%
Chance of Thunder: 0%
Dry Lightning Probability: 0%
Friday: Jul 10 2026
Weather: Mostly sunny.
Wind: Northeast winds 10 mph, becoming South winds 10 to 25 mph with gusts up to 30 mph.
High Temperatures: 88 to 95 on the mesas, 98 to 105 at the lower elevations, 102 at Mercury.
Relative Humidity:
12-15% in the morning. 8-12% in the afternoon.
10-12% in the morning. 5-9% in the afternoon.
Mixing Height: 9,000ft AGL
Chance of Wetting Rains: 0%
Chance of Thunder: 0%
Dry Lightning Probability: 0%
Saturday: Jul 11 2026
Weather: Mostly sunny.
Wind: South winds 10 to 25 mph with gusts up to 30 mph.
High Temperatures: 88 to 95 on the mesas, 99 to 106 at the lower elevations, 103 at Mercury.
Relative Humidity:
13-17% in the morning. 10-15% in the afternoon.
11-14% in the morning. 7-12% in the afternoon.
Mixing Height: 9,000ft AGL
Chance of Wetting Rains: 0%
Chance of Thunder: 0%
Dry Lightning Probability: 0%
Sunday: Jul 12 2026
Weather: Partly cloudy. Slight chance of rain showers.
Wind: South winds 10 to 25 mph with gusts up to 30 mph.
High Temperatures: 87 to 94 on the mesas, 97 to 104 at the lower elevations, 101 at Mercury.
Relative Humidity:
20-23% in the morning. 18-22% in the afternoon.
17-21% in the morning. 13-17% in the afternoon.
Mixing Height: 8,500ft AGL
Chance of Wetting Rains: 5%
Chance of Thunder: 0%
Dry Lightning Probability: 0%
Weather questions or reports should be directed to the Duty Forecaster at 5-1255.