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Greystone, California Weather Forecast
Greystone, California Weather
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Weather Forecast for Greystone, California : Santa Clara County
Issued: 2:08 am PST Dec 18, 2025 Latitude: 37.2213333 Longitude: -121.8468972 View on Google Maps

MouseOver for Detail Forecast
Overnight Thursday Friday Saturday Sunday Monday Tuesday Wednesday
Patchy Fog on Overnight Morning Fog on Thursday 80% chance of rain on Friday 60% chance of rain on Saturday Rain on Sunday 70% chance of rain on Monday 70% chance of rain on Tuesday 70% chance of rain on Wednesday
Low: 45°F High: 63°F High: 61°F High: 62°F High: 60°F High: 58°F High: 57°F High: 57°F
Low: 46°F Low: 52°F Low: 54°F Low: 52°F Low: 48°F Low: 47°F  
Patchy Fog Morning Fog Rain Rain Rain Rain Rain Rain
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Current Conditions at
SAN JOSE INTL - (KSJC)
46°
Clear
as of 1:53 AM PST
Rel. Humidity: 100%
Dew Point: 46°F
Visibility: 10 Miles
Pressure: 30.15 in.
Flight Rule: VFR
Wind Data
Calm
Cloud Level(s): Clear
Current Conditions at
MOUNTAIN VIEW NAS - (KNUQ)
46°
Clear
as of 2:30 AM PST
Rel. Humidity: 100%
Dew Point: 46°F
Visibility: 10 Miles
Pressure: 30.14 in.
Flight Rule: VFR
Wind Data
Calm
Cloud Level(s): Clear
Patchy Fog on Overnight Overnight... Patchy fog. Otherwise, mostly cloudy, with a low around 45. Calm wind.
Morning Fog on Thursday Thursday... Areas of fog before 11am. Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 63. Light and variable wind.
Patchy Fog on Thursday Night Thursday Night... Patchy fog after midnight. Otherwise, mostly cloudy, with a low around 46. Calm wind.
80% chance of rain Friday Friday... Rain, mainly after 4pm. High near 61. Calm wind becoming south around 5 mph in the afternoon. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
80% chance of rain Friday Night Friday Night... Rain. Low around 52. South wind 3 to 5 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
60% chance of rain Saturday Saturday... Rain likely, mainly after 4pm. Patchy fog before 10am. Otherwise, cloudy, with a high near 62. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
80% chance of rain Saturday Night Saturday Night... Rain. Low around 54. Chance of precipitation is 80%.
Rain on Sunday Sunday... Rain. Cloudy, with a high near 60.
Rain on Sunday Night Sunday Night... Rain. Cloudy, with a low around 52.
70% chance of rain Monday Monday... Rain likely. Cloudy, with a high near 58.
70% chance of rain Monday Night Monday Night... Rain likely. Cloudy, with a low around 48.
70% chance of rain Tuesday Tuesday... Rain likely. Cloudy, with a high near 57.
Rain on Tuesday Night Tuesday Night... Rain. Cloudy, with a low around 47.
70% chance of rain Wednesday Wednesday... Rain likely. Cloudy, with a high near 57.
Sun Almanac for Greystone, California
Sunrise: 07:16 AM
Sunset: 4:52 PM
Civil Sunrise:06:47 AM
Civil Sunset: 5:21 PM
Nautical Sunrise: 06:14 AM
Nautical Sunset: 5:54 PM
Astro Sunrise: 05:43 AM
Astro Sunset: 6:26 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.