Los Alamos, California Weather
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Weather Forecast for Los Alamos, California : Santa Barbara County
Issued: 1:32 pm PDT Sep 15, 2025 Latitude: 34.7444264 Longitude: -120.2782114 View on Google Maps

MouseOver for Detail Forecast
Overnight Tuesday Wednesday Thursday Friday Saturday Sunday Monday
Mostly Clear on Overnight Sunny on Tuesday Mostly Sunny on Wednesday 60% chance of thunderstorms on Thursday 20% chance of on Friday Mostly Sunny on Saturday Patchy Fog on Sunday Patchy Fog on Monday
Low: 55°F High: 90°F High: 90°F High: 81°F High: 82°F High: 80°F High: 82°F High: 84°F
Low: 59°F Low: 57°F Low: 58°F Low: 58°F Low: 57°F Low: 58°F  
Mostly Clear Sunny Mostly Sunny Thunderstorms Partly Sunny Mostly Sunny Patchy Fog Patchy Fog
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Current Conditions at
LOMPOC - (KLPC)
57°
Cloudy
Light Rain
as of 12:13 AM PDST
Rel. Humidity: 9%
Visibility: 1/4 Miles
Pressure: 29.90 in.
Flight Rule: LIFR
Wind Data
3 MPH
280° West
Cloud Level(s): Solid Overcast at 300ft
Current Conditions at
SANTA MARIA - (KSMX)
57°
Partly Cloudy
Fog
as of 11:51 PM PDST
Rel. Humidity: 100%
Dew Point: 57°F
Visibility: 1/4 Miles
Pressure: 29.90 in.
Flight Rule: IFR
Wind Data
Calm
Mostly Clear on Overnight Overnight... Mostly clear, with a low around 55. Calm wind.
Sunny on Tuesday Tuesday... Sunny, with a high near 90. Light and variable wind becoming west 5 to 10 mph in the afternoon.
Mostly Clear on Tuesday Night Tuesday Night... Mostly clear, with a low around 59. Northwest wind around 5 mph becoming calm in the evening.
Mostly Sunny on Wednesday Wednesday... Mostly sunny, with a high near 90. Light and variable wind becoming west northwest 5 to 10 mph in the afternoon. Winds could gust as high as 15 mph.
30% chance of thunderstorms Wednesday Night Wednesday Night... A slight chance of showers, then a chance of showers and thunderstorms after 11pm. Mostly cloudy, with a low around 57. West northwest wind 5 to 10 mph becoming north northeast after midnight. Chance of precipitation is 30%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
60% chance of thunderstorms Thursday Thursday... A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 11am. Mostly cloudy, with a high near 81. Chance of precipitation is 60%.
40% chance of thunderstorms Thursday Night Thursday Night... A 40 percent chance of showers and thunderstorms, mainly before 11pm. Mostly cloudy, with a low around 58.
20% chance of Friday Friday... A chance of showers. Partly sunny, with a high near 82.
Cloudy on Friday Night Friday Night... Partly cloudy, with a low around 58.
Mostly Sunny on Saturday Saturday... Mostly sunny, with a high near 80.
Patchy Fog on Saturday Night Saturday Night... Patchy fog. Otherwise, mostly cloudy, with a low around 57.
Patchy Fog on Sunday Sunday... Patchy fog. Otherwise, mostly sunny, with a high near 82.
Patchy Fog on Sunday Night Sunday Night... Patchy fog. Otherwise, mostly cloudy, with a low around 58.
Patchy Fog on Monday Monday... Patchy fog. Otherwise, mostly sunny, with a high near 84.
Sun Almanac for Los Alamos, California
Sunrise: 06:45 AM
Sunset: 7:06 PM
Civil Sunrise:06:20 AM
Civil Sunset: 7:31 PM
Nautical Sunrise: 05:50 AM
Nautical Sunset: 8:01 PM
Astro Sunrise: 05:20 AM
Astro Sunset: 8:31 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.