Halcyon, California Weather
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Weather Forecast for Halcyon, California : San Luis Obispo County
Issued: 4:08 am PDT Aug 16, 2025 Latitude: 35.1033092 Longitude: -120.5957255 View on Google Maps

MouseOver for Detail Forecast
Today Tonight Sunday Monday Tuesday Wednesday Thursday Friday
Morning Fog on Today Patchy Fog on Tonight Morning Fog on Sunday Morning Fog on Monday Morning Fog on Tuesday Morning Fog on Wednesday Mostly Sunny on Thursday Mostly Sunny on Friday
High: 71°F Low: 59°F High: 67°F High: 67°F High: 68°F High: 77°F High: 81°F High: 78°F
Low: 53°F Low: 54°F Low: 55°F Low: 58°F Low: 58°F  
Morning Fog Patchy Fog Morning Fog Morning Fog Morning Fog Morning Fog Mostly Sunny Mostly Sunny
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Current Conditions at
SAN LUIS OBISPO - (KSBP)
55°
Cloudy
Fog Smoke
as of 6:56 AM PDST
Rel. Humidity: 93%
Dew Point: 54°F
Visibility: 1/2 Miles
Pressure: 30.03 in.
Flight Rule: LIFR
Wind Data
6 MPH
100° East
Cloud Level(s): Solid Overcast at 200ft
Current Conditions at
SANTA MARIA - (KSMX)
55°
Cloudy
Mist
as of 6:51 AM PDST
Rel. Humidity: 93%
Dew Point: 54°F
Visibility: 3 Miles
Pressure: 30.04 in.
Flight Rule: LIFR
Wind Data
5 MPH
140° Southeast
Cloud Level(s): Solid Overcast at 400ft
Current Conditions at
VANDENBERG AFB - (KVBG)
55°
Cloudy
Mist
as of 7:10 AM PDST
Rel. Humidity: 100%
Dew Point: 55°F
Visibility: 1 1/2 Miles
Pressure: 30.05 in.
Flight Rule: LIFR
Wind Data
Calm
Cloud Level(s): Solid Overcast at 300ft
Morning Fog on Today Today... Patchy fog before 11am. Otherwise, cloudy, then gradually becoming mostly sunny, with a high near 71. Southwest wind 5 to 10 mph becoming west northwest 10 to 15 mph in the afternoon. Winds could gust as high as 20 mph.
Patchy Fog on Tonight Tonight... Patchy fog. Otherwise, cloudy, with a low around 59. Northwest wind 5 to 15 mph.
Morning Fog on Sunday Sunday... Patchy fog before 11am. Otherwise, cloudy through mid morning, then gradual clearing, with a high near 67. West northwest wind 5 to 10 mph increasing to 10 to 15 mph in the afternoon. Winds could gust as high as 20 mph.
Patchy Fog on Sunday Night Sunday Night... Patchy fog after 11pm. Otherwise, increasing clouds, with a low around 53. Northwest wind 5 to 10 mph, with gusts as high as 15 mph.
Morning Fog on Monday Monday... Patchy fog before 11am. Otherwise, mostly sunny, with a high near 67. Northwest wind 5 to 10 mph increasing to 10 to 15 mph in the afternoon. Winds could gust as high as 20 mph.
Patchy Fog on Monday Night Monday Night... Patchy fog after 11pm. Otherwise, mostly cloudy, with a low around 54.
Morning Fog on Tuesday Tuesday... Patchy fog before 11am. Otherwise, mostly sunny, with a high near 68.
Patchy Fog on Tuesday Night Tuesday Night... Patchy fog after 11pm. Otherwise, mostly cloudy, with a low around 55.
Morning Fog on Wednesday Wednesday... Patchy fog before 11am. Otherwise, partly sunny, with a high near 77.
Cloudy on Wednesday Night Wednesday Night... Partly cloudy, with a low around 58.
Mostly Sunny on Thursday Thursday... Mostly sunny, with a high near 81.
Cloudy on Thursday Night Thursday Night... Partly cloudy, with a low around 58.
Mostly Sunny on Friday Friday... Mostly sunny, with a high near 78.
Sun Almanac for Halcyon, California
Sunrise: 06:24 AM
Sunset: 7:50 PM
Civil Sunrise:05:57 AM
Civil Sunset: 8:16 PM
Nautical Sunrise: 05:25 AM
Nautical Sunset: 8:48 PM
Astro Sunrise: 04:51 AM
Astro Sunset: 9:22 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.