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

61°F

16°C

Humidity 77%
Wind Speed NW 9 MPH
Barometer 29.96 in (1014.56 mb)
Dewpoint 54°F (12°C)
Visibility 10.00 mi
Last update 20 Jun 09:50 PM PDT
Extended Forecast for

Arroyo Grande CA

  • Tonight

    Tonight: Mostly cloudy, with a low around 57. West wind 5 to 10 mph becoming light west northwest after midnight.

    Low: 57 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 74. Light west northwest wind becoming west 10 to 15 mph in the afternoon.

    High: 74 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Patchy fog. Otherwise, mostly cloudy, with a low around 58. Northwest wind 5 to 10 mph, with gusts as high as 15 mph.

    Low: 58 °F

    Patchy Fog

  • Monday

    Monday: Patchy fog before 11am. Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 74. West wind 5 to 10 mph, with gusts as high as 15 mph.

    High: 74 °F

    Patchy Fog
    then Sunny

  • Monday Night

    Monday Night: Patchy fog after 11pm. Otherwise, mostly cloudy, with a low around 58. West wind around 5 mph becoming calm in the evening.

    Low: 58 °F

    Patchy Fog

  • Tuesday

    Tuesday: Patchy fog before 11am. Otherwise, mostly sunny, with a high near 76.

    High: 76 °F

    Patchy Fog
    then Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 54.

    Low: 54 °F

    Mostly Clear

  • Wednesday

    Wednesday: A slight chance of showers after 11am. Mostly sunny, with a high near 72.

    High: 72 °F

    Slight Chance
    Showers

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 54.

    Low: 54 °F

    Partly Cloudy

Detailed Forecast

Tonight
Mostly cloudy, with a low around 57. West wind 5 to 10 mph becoming light west northwest after midnight.
Sunday
Mostly sunny, with a high near 74. Light west northwest wind becoming west 10 to 15 mph in the afternoon.
Sunday Night
Patchy fog. Otherwise, mostly cloudy, with a low around 58. Northwest wind 5 to 10 mph, with gusts as high as 15 mph.
Monday
Patchy fog before 11am. Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 74. West wind 5 to 10 mph, with gusts as high as 15 mph.
Monday Night
Patchy fog after 11pm. Otherwise, mostly cloudy, with a low around 58. West wind around 5 mph becoming calm in the evening.
Tuesday
Patchy fog before 11am. Otherwise, mostly sunny, with a high near 76.
Tuesday Night
Mostly clear, with a low around 54.
Wednesday
A slight chance of showers after 11am. Mostly sunny, with a high near 72.
Wednesday Night
Partly cloudy, with a low around 54.
Thursday
Mostly sunny, with a high near 72.
Thursday Night
Partly cloudy, with a low around 54.
Friday
Mostly sunny, with a high near 71.
Friday Night
Partly cloudy, with a low around 53.
Saturday
Mostly sunny, with a high near 72.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Arroyo Grande CA
 35.12°N 120.59°W (Elev. 128 ft)
Last Update:
11:27 am PDT Jun 20, 2026
Forecast Valid:
10pm PDT Jun 20, 2026-6pm PDT Jun 27, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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