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Los Altos, California Weather Forecast
Los Altos, California Weather
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Weather Forecast for Los Altos, California : Los Angeles County
Issued: 4:26 am PST Dec 19, 2025 Latitude: 33.7939057 Longitude: -118.1253437 View on Google Maps

MouseOver for Detail Forecast
Overnight Friday Saturday Sunday Monday Tuesday Wednesday Christmas Day
Patchy Fog on Overnight Morning Fog on Friday Morning Fog on Saturday Mostly Cloudy on Sunday Mostly Cloudy on Monday 20% chance of rain on Tuesday Rain on Wednesday Rain on Christmas Day
Low: 54°F High: 68°F High: 66°F High: 68°F High: 69°F High: 66°F High: 64°F High: 65°F
Low: 54°F Low: 54°F Low: 53°F Low: 53°F Low: 57°F Low: 56°F  
Patchy Fog Morning Fog Morning Fog Mostly Cloudy Mostly Cloudy Rain Rain Rain
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Current Conditions at
LONG BEACH - (KLGB)
54°
Clear
Fog
as of 3:53 AM PST
Rel. Humidity: 100%
Dew Point: 54°F
Visibility: 1/4 Miles
Pressure: 29.98 in.
Flight Rule: IFR
Wind Data
3 MPH
310° Northwest
Current Conditions at
FULLERTON - (KFUL)
52°
Clear
Mist
as of 3:53 AM PST
Rel. Humidity: 87%
Dew Point: 48°F
Visibility: 6 Miles
Pressure: 29.98 in.
Flight Rule: VFR
Wind Data
Calm
Cloud Level(s): Clear
Current Conditions at
HAWTHORNE - (KHHR)
54°
Clear
Fog
as of 4:23 AM PST
Rel. Humidity: 93%
Dew Point: 52°F
Visibility: 1/4 Miles
Pressure: 29.98 in.
Flight Rule: IFR
Wind Data
Calm
Patchy Fog on Overnight Overnight... Patchy fog. Otherwise, cloudy, with a low around 54. Calm wind.

Morning Fog on Friday Friday... Patchy fog before 10am. Otherwise, cloudy, then gradually becoming mostly sunny, with a high near 68. East wind around 5 mph becoming south southwest in the afternoon.

Patchy Fog on Friday Night Friday Night... Patchy fog after 10pm. Otherwise, increasing clouds, with a low around 54. Southwest wind around 5 mph becoming calm in the evening.

Morning Fog on Saturday Saturday... Patchy fog before 10am. Otherwise, cloudy, then gradually becoming mostly sunny, with a high near 66. East wind 5 to 10 mph becoming south in the afternoon.

Mostly Cloudy on Saturday Night Saturday Night... Mostly cloudy, with a low around 54. South wind around 5 mph becoming calm in the evening.

Mostly Cloudy on Sunday Sunday... Mostly cloudy, with a high near 68.

Mostly Cloudy on Sunday Night Sunday Night... Mostly cloudy, with a low around 53.

Mostly Cloudy on Monday Monday... Mostly cloudy, with a high near 69.

Mostly Cloudy on Monday Night Monday Night... Mostly cloudy, with a low around 53.

20% chance of rain Tuesday Tuesday... A chance of rain after 10am. Cloudy, with a high near 66.

70% chance of rain Tuesday Night Tuesday Night... Rain likely. Cloudy, with a low around 57.

Rain on Wednesday Wednesday... Rain. Cloudy, with a high near 64.

Rain on Wednesday Night Wednesday Night... Rain. Cloudy, with a low around 56.

Rain on Christmas Day Christmas Day... Rain. Cloudy, with a high near 65.

Current Radar Image


Sun Almanac for Los Altos, California
Sunrise: 06:53 AM
Sunset: 4:47 PM
Civil Sunrise:06:25 AM
Civil Sunset: 5:15 PM
Nautical Sunrise: 05:54 AM
Nautical Sunset: 5:46 PM
Astro Sunrise: 05:23 AM
Astro Sunset: 6:16 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.