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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

64°F

18°C

Humidity 77%
Wind Speed W 5 MPH
Barometer 29.97 in (1014.9 mb)
Dewpoint 57°F (14°C)
Visibility 10.00 mi
Last update 09 Sep 02:05 AM PDT
Extended Forecast for

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

  • Overnight

    Overnight: Partly cloudy, with a low around 63. North northeast wind around 5 mph.

    Low: 63 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny and hot, with a high near 99. North northwest wind around 10 mph becoming northeast in the morning. Winds could gust as high as 15 mph.

    High: 99 °F

    Hot

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 64. West northwest wind 5 to 10 mph becoming north in the evening.

    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: Patchy fog after 11pm. Otherwise, mostly cloudy, with a low around 58. Northwest wind 5 to 15 mph, with gusts as high as 20 mph.

    Low: 58 °F

    Patchy Fog

  • Friday

    Friday: Patchy fog before 11am. Otherwise, mostly sunny, with a high near 83.

    High: 83 °F

    Patchy Fog
    then Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 58.

    Low: 58 °F

    Partly Cloudy

  • Saturday

    Saturday: Patchy fog before 11am. Otherwise, mostly sunny, with a high near 77.

    High: 77 °F

    Patchy Fog
    then Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 55.

    Low: 55 °F

    Mostly Clear

Detailed Forecast

Overnight
Partly cloudy, with a low around 63. North northeast wind around 5 mph.
Wednesday
Sunny and hot, with a high near 99. North northwest wind around 10 mph becoming northeast in the morning. Winds could gust as high as 15 mph.
Wednesday Night
Mostly clear, with a low around 64. West northwest wind 5 to 10 mph becoming north in the evening.
Thursday
Sunny, with a high near 92. West northwest wind 5 to 15 mph, with gusts as high as 20 mph.
Thursday Night
Patchy fog after 11pm. Otherwise, mostly cloudy, with a low around 58. Northwest wind 5 to 15 mph, with gusts as high as 20 mph.
Friday
Patchy fog before 11am. Otherwise, mostly sunny, with a high near 83.
Friday Night
Partly cloudy, with a low around 58.
Saturday
Patchy fog before 11am. Otherwise, mostly sunny, with a high near 77.
Saturday Night
Mostly clear, with a low around 55.
Sunday
Sunny, with a high near 80.
Sunday Night
Mostly clear, with a low around 56.
Monday
Sunny, with a high near 79.
Monday Night
Mostly clear, with a low around 55.
Tuesday
Sunny, with a high near 74.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
San Luis Obispo CA
 35.27°N 120.68°W (Elev. 131 ft)
Last Update:
1:31 am PDT Sep 9, 2026
Forecast Valid:
2am PDT Sep 9, 2026-6pm PDT Sep 15, 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