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

Hazardous Weather Conditions

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 68%
Wind Speed W 4 MPH
Barometer 29.98 in (1015.24 mb)
Dewpoint 57°F (14°C)
Visibility 10.00 mi
Last update 08 Sep 10:35 PM PDT
Extended Forecast for

2 Miles SSW San Luis Obispo CA

Extreme Heat Warning September 9, 08:00am until September 10, 08:00pm
Click here for hazard details and duration
Extreme Heat Warning

  • Tonight

    Tonight: A 20 percent chance of showers and thunderstorms before 11pm. Partly cloudy, with a low around 63. North wind around 5 mph.

    Low: 63 °F

    Slight Chance
    T-storms then
    Partly Cloudy

  • Wednesday

    Wednesday: Sunny and hot, with a high near 99. Heat index values as high as 109. North northeast wind 5 to 10 mph becoming northwest in the afternoon.

    High: 99 °F

    Hot

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 64. Northwest wind 5 to 10 mph becoming light north after midnight.

    Low: 64 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 92. West northwest wind 5 to 15 mph, with gusts as high as 20 mph.

    High: 92 °F

    Sunny

  • Thursday Night

    Thursday Night: Clear, with a low around 58. Northwest wind 5 to 15 mph, with gusts as high as 20 mph.

    Low: 58 °F

    Clear

  • Friday

    Friday: Sunny, with a high near 84.

    High: 84 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 58.

    Low: 58 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 79.

    High: 79 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 56.

    Low: 56 °F

    Mostly Clear

Detailed Forecast

Tonight
A 20 percent chance of showers and thunderstorms before 11pm. Partly cloudy, with a low around 63. North wind around 5 mph.
Wednesday
Sunny and hot, with a high near 99. Heat index values as high as 109. North northeast wind 5 to 10 mph becoming northwest in the afternoon.
Wednesday Night
Mostly clear, with a low around 64. Northwest wind 5 to 10 mph becoming light north after midnight.
Thursday
Sunny, with a high near 92. West northwest wind 5 to 15 mph, with gusts as high as 20 mph.
Thursday Night
Clear, with a low around 58. Northwest wind 5 to 15 mph, with gusts as high as 20 mph.
Friday
Sunny, with a high near 84.
Friday Night
Mostly clear, with a low around 58.
Saturday
Sunny, with a high near 79.
Saturday Night
Mostly clear, with a low around 56.
Sunday
Sunny, with a high near 81.
Sunday Night
Mostly clear, with a low around 57.
Monday
Sunny, with a high near 80.
Monday Night
Mostly clear, with a low around 56.
Tuesday
Mostly sunny, with a high near 77.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles SSW San Luis Obispo CA
 35.24°N 120.68°W (Elev. 131 ft)
Last Update:
4:41 pm PDT Sep 8, 2026
Forecast Valid:
10pm PDT Sep 8, 2026-6pm PDT Sep 15, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

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Chance of Precipitation