Howell Mountain, California Weather
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Weather Forecast for Howell Mountain, California : Napa County
Issued: 5:20 am PDT Aug 16, 2025 Latitude: 38.5812957 Longitude: -122.4510907 View on Google Maps

MouseOver for Detail Forecast
Today Tonight Sunday Monday Tuesday Wednesday Thursday Friday
Sunny on Today Mostly Clear on Tonight Sunny on Sunday Sunny on Monday Sunny on Tuesday Sunny on Wednesday Sunny on Thursday Sunny on Friday
High: 82°F Low: 57°F High: 74°F High: 75°F High: 80°F High: 88°F High: 91°F High: 91°F
Low: 53°F Low: 53°F Low: 58°F Low: 63°F Low: 63°F  
Sunny Mostly Clear Sunny Sunny Sunny Sunny Sunny Sunny
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Current Conditions at
SANTA ROSA - (KSTS)
57°
Clear
as of 6:53 AM PDST
Rel. Humidity: 93%
Dew Point: 55°F
Visibility: 10 Miles
Pressure: 29.93 in.
Flight Rule: VFR
Wind Data
5 MPH
150° Southeast
Cloud Level(s): Clear
Current Conditions at
NAPA - (KAPC)
59°
Mostly Cloudy
as of 7:12 AM PDST
Rel. Humidity: 93%
Dew Point: 57°F
Visibility: 10 Miles
Pressure: 29.95 in.
Flight Rule: IFR
Wind Data
Calm
Cloud Level(s): Broken at 500ft
Current Conditions at
VACAVILLE - (KVCB)
63°
Clear
as of 6:53 AM PDST
Rel. Humidity: 82%
Dew Point: 57°F
Visibility: 10 Miles
Pressure: 29.91 in.
Flight Rule: VFR
Wind Data
5 MPH
240° Southwest
Cloud Level(s): Clear
Current Conditions at
TRAVIS AFB - (KSUU)
61°
Clear
as of 6:55 AM PDST
Rel. Humidity: 87%
Dew Point: 57°F
Visibility: 10 Miles
Pressure: 29.89 in.
Flight Rule: VFR
Wind Data
16 MPH
220° Southwest
Cloud Level(s): Clear
Sunny on Today Today... Sunny, with a high near 82. West wind 5 to 15 mph, with gusts as high as 21 mph.
Mostly Clear on Tonight Tonight... Mostly clear, with a low around 57. West wind 8 to 16 mph, with gusts as high as 25 mph.
Sunny on Sunday Sunday... Sunny, with a high near 74. Southwest wind 5 to 9 mph, with gusts as high as 20 mph.
Mostly Clear on Sunday Night Sunday Night... Mostly clear, with a low around 53. West southwest wind 6 to 10 mph, with gusts as high as 21 mph.
Sunny on Monday Monday... Sunny, with a high near 75. Southwest wind 5 to 8 mph.
Clear on Monday Night Monday Night... Clear, with a low around 53.
Sunny on Tuesday Tuesday... Sunny, with a high near 80.
Clear on Tuesday Night Tuesday Night... Clear, with a low around 58.
Sunny on Wednesday Wednesday... Sunny, with a high near 88.
Mostly Clear on Wednesday Night Wednesday Night... Mostly clear, with a low around 63.
Sunny on Thursday Thursday... Sunny, with a high near 91.
Clear on Thursday Night Thursday Night... Clear, with a low around 63.
Sunny on Friday Friday... Sunny, with a high near 91.
Current Radar Image


Sun Almanac for Howell Mountain, California
Sunrise: 06:26 AM
Sunset: 8:02 PM
Civil Sunrise:05:57 AM
Civil Sunset: 8:31 PM
Nautical Sunrise: 05:23 AM
Nautical Sunset: 9:05 PM
Astro Sunrise: 04:47 AM
Astro Sunset: 9:41 PM
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