National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

San Luis Obispo, San Luis Obispo County-Mc Chesney Field (KSBP)

Lat: 35.23611°NLon: 120.63611°WElev: 207.0ft.

Clear

50°F

10°C

Humidity 93%
Wind Speed N 0 MPH
Barometer 30.08 in (1018.63 mb)
Dewpoint 48°F (9°C)
Visibility 10.00 mi
Last update 01 Jan 10:45 PM PST
Extended Forecast for

Arroyo Grande CA

  • Tonight

    Tonight: Partly cloudy, with a low around 50. East wind around 5 mph.

    Low: 50 °F

    Partly Cloudy

  • Friday

    Friday: A 10 percent chance of rain after 4pm. Mostly cloudy, with a high near 64. South southeast wind 10 to 15 mph, with gusts as high as 20 mph.

    High: 64 °F

    Mostly Cloudy
    then Slight
    Chance Rain

  • Friday Night

    Friday Night: Rain, mainly after 10pm. Low around 57. Breezy, with a south southeast wind 15 to 25 mph, with gusts as high as 30 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 57 °F

    Rain and
    Breezy

  • Saturday

    Saturday: Rain. High near 63. Breezy, with a south wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 90%. New precipitation amounts between a half and three quarters of an inch possible.

    High: 63 °F

    Rain and
    Breezy

  • Saturday Night

    Saturday Night: Rain likely. Cloudy, with a low around 54. South southeast wind 5 to 10 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 54 °F

    Rain Likely

  • Sunday

    Sunday: Rain. High near 60. Chance of precipitation is 90%.

    High: 60 °F

    Rain

  • Sunday Night

    Sunday Night: Rain likely, mainly before 10pm. Mostly cloudy, with a low around 49. Chance of precipitation is 70%.

    Low: 49 °F

    Rain Likely
    then Chance
    Rain

  • Monday

    Monday: Rain likely, mainly after 4pm. Mostly cloudy, with a high near 61.

    High: 61 °F

    Rain Likely

  • Monday Night

    Monday Night: Rain likely, mainly before 10pm. Mostly cloudy, with a low around 48.

    Low: 48 °F

    Rain Likely

Detailed Forecast

Tonight
Partly cloudy, with a low around 50. East wind around 5 mph.
Friday
A 10 percent chance of rain after 4pm. Mostly cloudy, with a high near 64. South southeast wind 10 to 15 mph, with gusts as high as 20 mph.
Friday Night
Rain, mainly after 10pm. Low around 57. Breezy, with a south southeast wind 15 to 25 mph, with gusts as high as 30 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.
Saturday
Rain. High near 63. Breezy, with a south wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 90%. New precipitation amounts between a half and three quarters of an inch possible.
Saturday Night
Rain likely. Cloudy, with a low around 54. South southeast wind 5 to 10 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.
Sunday
Rain. High near 60. Chance of precipitation is 90%.
Sunday Night
Rain likely, mainly before 10pm. Mostly cloudy, with a low around 49. Chance of precipitation is 70%.
Monday
Rain likely, mainly after 4pm. Mostly cloudy, with a high near 61.
Monday Night
Rain likely, mainly before 10pm. Mostly cloudy, with a low around 48.
Tuesday
A chance of rain. Partly sunny, with a high near 60.
Tuesday Night
A slight chance of rain. Partly cloudy, with a low around 45.
Wednesday
A slight chance of rain. Mostly sunny, with a high near 61.
Wednesday Night
A slight chance of rain. Mostly cloudy, with a low around 43.
Thursday
A slight chance of rain. Mostly sunny, with a high near 58.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Arroyo Grande CA
 35.12°N 120.57°W (Elev. 128 ft)
Last Update:
7:01 pm PST Jan 1, 2026
Forecast Valid:
11pm PST Jan 1, 2026-6pm PST Jan 8, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation