Tassajara, California Weather
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Weather Forecast for Tassajara, California : Contra Costa County
Issued: 1:26 am PDT Oct 18, 2025 Latitude: 37.7957602 Longitude: -121.8635675 View on Google Maps

MouseOver for Detail Forecast
Today Tonight Sunday Monday Tuesday Wednesday Thursday Friday
Sunny on Today Clear on Tonight Sunny on Sunday Sunny on Monday Sunny on Tuesday Mostly Sunny on Wednesday Patchy Fog on Thursday Patchy Fog on Friday
High: 78°F Low: 54°F High: 78°F High: 77°F High: 77°F High: 71°F High: 72°F High: 70°F
Low: 53°F Low: 54°F Low: 52°F Low: 50°F Low: 52°F  
Sunny Clear Sunny Sunny Sunny Mostly Sunny Patchy Fog Patchy Fog
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Current Conditions at
LIVERMORE - (KLVK)
48°
Clear
as of 6:53 AM PDST
Rel. Humidity: 93%
Dew Point: 46°F
Visibility: 10 Miles
Pressure: 30.01 in.
Flight Rule: VFR
Wind Data
Calm
Cloud Level(s): Clear
Current Conditions at
CONCORD - (KCCR)
52°
Mostly Cloudy
as of 6:53 AM PDST
Rel. Humidity: 87%
Dew Point: 48°F
Visibility: 10 Miles
Pressure: 30.02 in.
Flight Rule: LIFR
Wind Data
Calm
Cloud Level(s): Broken at 300ft
Current Conditions at
HAYWARD - (KHWD)
55°
Clear
as of 6:54 AM PDST
Rel. Humidity: 82%
Dew Point: 50°F
Visibility: 10 Miles
Pressure: 30.00 in.
Flight Rule: VFR
Wind Data
3 MPH
070° East
Cloud Level(s): Clear
Current Conditions at
PALO ALTO - (KPAO)
50°
Clear
as of 6:47 AM PDST
Rel. Humidity: 93%
Dew Point: 48°F
Visibility: 10 Miles
Pressure: 30.00 in.
Flight Rule: VFR
Wind Data
3 MPH
210° Southwest
Cloud Level(s): Clear
Sunny on Today Today... Sunny, with a high near 78. East wind 5 to 10 mph.
Clear on Tonight Tonight... Clear, with a low around 54. Calm wind.
Sunny on Sunday Sunday... Sunny, with a high near 78. Calm wind becoming west 5 to 7 mph in the afternoon.
Mostly Clear on Sunday Night Sunday Night... Mostly clear, with a low around 53. Light and variable wind becoming north 10 to 15 mph after midnight. Winds could gust as high as 21 mph.
Sunny on Monday Monday... Sunny, with a high near 77. North northeast wind 7 to 17 mph, with gusts as high as 21 mph.
Mostly Clear on Monday Night Monday Night... Mostly clear, with a low around 54.
Sunny on Tuesday Tuesday... Sunny, with a high near 77.
Cloudy on Tuesday Night Tuesday Night... Partly cloudy, with a low around 52.
Mostly Sunny on Wednesday Wednesday... Mostly sunny, with a high near 71.
Morning Fog on Wednesday Night Wednesday Night... Patchy fog after 1am. Otherwise, mostly clear, with a low around 50.
Patchy Fog on Thursday Thursday... Patchy fog. Otherwise, mostly sunny, with a high near 72.
Cloudy on Thursday Night Thursday Night... Partly cloudy, with a low around 52.
Patchy Fog on Friday Friday... Patchy fog. Otherwise, partly sunny, with a high near 70.
Current Radar Image


Sun Almanac for Tassajara, California
Sunrise: 07:19 AM
Sunset: 6:26 PM
Civil Sunrise:06:53 AM
Civil Sunset: 6:52 PM
Nautical Sunrise: 06:22 AM
Nautical Sunset: 7:23 PM
Astro Sunrise: 05:52 AM
Astro Sunset: 7:53 PM
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