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

68°F

20°C

Humidity 60%
Wind Speed WNW 18 MPH
Barometer 29.89 in (1012.19 mb)
Dewpoint 54°F (12°C)
Visibility 10.00 mi
Last update 19 Oct 04:35 PM PDT
Extended Forecast for

Arroyo Grande CA

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 71. West northwest wind around 10 mph.

    High: 71 °F

    Mostly Sunny

  • Tonight

    Tonight: Patchy fog after 11pm. Otherwise, increasing clouds, with a low around 48. Northwest wind 5 to 10 mph becoming northeast after midnight.

    Low: 48 °F

    Patchy Fog

  • Tuesday

    Tuesday: Patchy fog before 11am. Otherwise, mostly cloudy, with a high near 69. Light and variable wind becoming southwest 5 to 10 mph in the afternoon.

    High: 69 °F

    Patchy Fog
    then Mostly
    Cloudy

  • Tuesday Night

    Tuesday Night: A 20 percent chance of rain after 11pm. Mostly cloudy, with a low around 53. West wind around 5 mph becoming east southeast after midnight.

    Low: 53 °F

    Slight Chance
    Rain

  • Wednesday

    Wednesday: Rain likely before 11am, then showers after 11am. High near 68. Southeast wind around 5 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    High: 68 °F

    Showers

  • Wednesday Night

    Wednesday Night: Showers and possibly a thunderstorm. Low around 54. Chance of precipitation is 80%.

    Low: 54 °F

    Showers

  • Thursday

    Thursday: A 50 percent chance of showers. Partly sunny, with a high near 68.

    High: 68 °F

    Chance
    Showers

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 51.

    Low: 51 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 68.

    High: 68 °F

    Sunny

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 71. West northwest wind around 10 mph.
Tonight
Patchy fog after 11pm. Otherwise, increasing clouds, with a low around 48. Northwest wind 5 to 10 mph becoming northeast after midnight.
Tuesday
Patchy fog before 11am. Otherwise, mostly cloudy, with a high near 69. Light and variable wind becoming southwest 5 to 10 mph in the afternoon.
Tuesday Night
A 20 percent chance of rain after 11pm. Mostly cloudy, with a low around 53. West wind around 5 mph becoming east southeast after midnight.
Wednesday
Rain likely before 11am, then showers after 11am. High near 68. Southeast wind around 5 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Wednesday Night
Showers and possibly a thunderstorm. Low around 54. Chance of precipitation is 80%.
Thursday
A 50 percent chance of showers. Partly sunny, with a high near 68.
Thursday Night
Mostly clear, with a low around 51.
Friday
Sunny, with a high near 68.
Friday Night
Mostly clear, with a low around 50.
Saturday
Sunny, with a high near 73.
Saturday Night
Mostly clear, with a low around 52.
Sunday
Mostly sunny, with a high near 73.
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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:
11:46 am PDT Oct 19, 2026
Forecast Valid:
4pm PDT Oct 19, 2026-6pm PDT Oct 25, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

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