Howell Mountain, California Weather
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Weather Forecast for Howell Mountain, California : Napa County
Issued: 1:26 pm PDT Jul 1, 2025 Latitude: 38.5812957 Longitude: -122.4510907 View on Google Maps

MouseOver for Detail Forecast
This Afternoon Tonight Wednesday Thursday Independence Day Saturday Sunday Monday
Sunny on This Afternoon Mostly Clear on Tonight Sunny on Wednesday Mostly Sunny on Thursday Sunny on Independence Day Sunny on Saturday Sunny on Sunday Sunny on Monday
High: 84°F Low: 59°F High: 85°F High: 83°F High: 78°F High: 82°F High: 83°F High: 82°F
Low: 59°F Low: 55°F Low: 54°F Low: 56°F Low: 55°F  
Sunny Mostly Clear Sunny Mostly Sunny Sunny Sunny Sunny Sunny
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Current Conditions at
SANTA ROSA - (KSTS)
75°
Clear
as of 12:53 PM PDST
Rel. Humidity: 53%
Dew Point: 57°F
Visibility: 10 Miles
Pressure: 29.86 in.
Flight Rule: VFR
Wind Data
12 MPH
200° South
Cloud Level(s): Clear
Current Conditions at
NAPA - (KAPC)
70°
Clear
as of 12:54 PM PDST
Rel. Humidity: 60%
Dew Point: 55°F
Visibility: 10 Miles
Pressure: 29.87 in.
Flight Rule: VFR
Wind Data
10 MPH
220° Southwest
Cloud Level(s): Clear
Current Conditions at
VACAVILLE - (KVCB)
93°
Clear
as of 12:53 PM PDST
Rel. Humidity: 26%
Dew Point: 54°F
Visibility: 10 Miles
Pressure: 29.80 in.
Flight Rule: VFR
Wind Data
7 MPH
220° Southwest
Cloud Level(s): Clear
Current Conditions at
TRAVIS AFB - (KSUU)
82°
Mostly Clear
as of 12:55 PM PDST
Rel. Humidity: 37%
Dew Point: 54°F
Visibility: 10 Miles
Pressure: 29.79 in.
Flight Rule: VFR
Wind Data
23 MPH
230° Southwest
Cloud Level(s): Few at 20000ft
Sunny on This Afternoon This Afternoon... Sunny, with a high near 84. West wind around 15 mph, with gusts as high as 20 mph.
Mostly Clear on Tonight Tonight... Mostly clear, with a low around 59. West wind 6 to 14 mph, with gusts as high as 18 mph.
Sunny on Wednesday Wednesday... Sunny, with a high near 85. Light west wind becoming west southwest 5 to 10 mph in the morning.
Mostly Clear on Wednesday Night Wednesday Night... Mostly clear, with a low around 59. West southwest wind 7 to 10 mph.
Mostly Sunny on Thursday Thursday... Mostly sunny, with a high near 83. West wind 7 to 17 mph, with gusts as high as 21 mph.
Mostly Clear on Thursday Night Thursday Night... Mostly clear, with a low around 55.
Sunny on Independence Day Independence Day... Sunny, with a high near 78.
Clear on Friday Night Friday Night... Clear, with a low around 54.
Sunny on Saturday Saturday... Sunny, with a high near 82.
Clear on Saturday Night Saturday Night... Clear, with a low around 56.
Sunny on Sunday Sunday... Sunny, with a high near 83.
Mostly Clear on Sunday Night Sunday Night... Mostly clear, with a low around 55.
Sunny on Monday Monday... Sunny, with a high near 82.
Current Radar Image


Sun Almanac for Howell Mountain, California
Sunrise: 05:50 AM
Sunset: 8:38 PM
Civil Sunrise:05:18 AM
Civil Sunset: 9:10 PM
Nautical Sunrise: 04:38 AM
Nautical Sunset: 9:50 PM
Astro Sunrise: 03:53 AM
Astro Sunset: 10:35 PM
Any use of the information on this page is at your own risk. This information should not be relied upon in life-threatening situations, potential financial loss situations or in lieu of any officially disseminated information. Visit the National Weather Service for official information.