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Summit, California Weather Forecast
Summit, California Weather
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Weather Forecast for Summit, California : San Luis Obispo County
Issued: 1:06 pm PST Dec 18, 2025 Latitude: 35.0677544 Longitude: -120.5121112 View on Google Maps

MouseOver for Detail Forecast
This Afternoon Tonight Friday Saturday Sunday Monday Tuesday Wednesday
Sunny on This Afternoon Mostly Clear on Tonight Mostly Sunny on Friday Mostly Sunny on Saturday 20% chance of rain on Sunday 10% chance of rain on Monday Rain on Tuesday Rain on Wednesday
High: 73°F Low: 48°F High: 68°F High: 69°F High: 65°F High: 65°F High: 65°F High: 62°F
Low: 49°F Low: 54°F Low: 53°F Low: 51°F Low: 53°F  
Sunny Mostly Clear Mostly Sunny Mostly Sunny Rain Rain Rain Rain
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Current Conditions at
SANTA MARIA - (KSMX)
64°
Clear
as of 1:51 PM PST
Rel. Humidity: 77%
Dew Point: 57°F
Visibility: 10 Miles
Pressure: 30.04 in.
Flight Rule: VFR
Wind Data
14 MPH
290° West
Cloud Level(s): Clear
Current Conditions at
SAN LUIS OBISPO - (KSBP)
66°
Clear
as of 1:56 PM PST
Rel. Humidity: 63%
Dew Point: 54°F
Visibility: 10 Miles
Pressure: 30.03 in.
Flight Rule: VFR
Wind Data
12 MPH
310° Northwest
Cloud Level(s): Clear
Sunny on This Afternoon This Afternoon... Sunny, with a high near 73. North wind around 10 mph, with gusts as high as 15 mph.

Mostly Clear on Tonight Tonight... Mostly clear, with a low around 48. North wind 5 to 10 mph.

Mostly Sunny on Friday Friday... Mostly sunny, with a high near 68. North wind 5 to 10 mph becoming west northwest in the morning. Winds could gust as high as 15 mph.

Mostly Clear on Friday Night Friday Night... Mostly clear, with a low around 49. North wind 5 to 10 mph.

Mostly Sunny on Saturday Saturday... Mostly sunny, with a high near 69. West northwest wind 5 to 10 mph.

Cloudy on Saturday Night Saturday Night... Cloudy, with a low around 54.

20% chance of rain Sunday Sunday... A 20 percent chance of showers. Cloudy, with a high near 65.

10% chance of rain Sunday Night Sunday Night... A slight chance of showers before 10pm. Cloudy, with a low around 53.

10% chance of rain Monday Monday... A slight chance of showers. Cloudy, with a high near 65.

20% chance of rain Monday Night Monday Night... A chance of showers. Cloudy, with a low around 51.

Rain on Tuesday Tuesday... Showers likely. Cloudy, with a high near 65.

Rain on Tuesday Night Tuesday Night... Showers. Cloudy, with a low around 53.

Rain on Wednesday Wednesday... Showers. Cloudy, with a high near 62.

Sun Almanac for Summit, California
Sunrise: 07:05 AM
Sunset: 4:53 PM
Civil Sunrise:06:37 AM
Civil Sunset: 5:21 PM
Nautical Sunrise: 06:05 AM
Nautical Sunset: 5:53 PM
Astro Sunrise: 05:34 AM
Astro Sunset: 6:24 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.