National Weather Service Forecast for: San Luis Obispo CA
Issued by: National Weather Service Los Angeles/Oxnard, CA
Updated: 5:58 am PDT Mar 19, 2026
 
This
Afternoon
This Afternoon: Sunny and hot, with a high near 98. Northeast wind around 10 mph.
Hot
 Tonight

Tonight: Clear, with a low around 62. Northwest wind 5 to 10 mph becoming northeast in the evening.
Clear
 Friday

Friday: Sunny, with a high near 94. Northeast wind 5 to 10 mph becoming west southwest in the afternoon.
Sunny
 Friday
Night
Friday Night: Clear, with a low around 58. West southwest wind around 5 mph becoming calm in the evening.
Clear
 Saturday

Saturday: Sunny, with a high near 86. Light and variable wind becoming west northwest 5 to 10 mph in the morning.
Sunny
 Saturday
Night
Saturday Night: Mostly clear, with a low around 53.
Mostly Clear
 Sunday

Sunday: Sunny, with a high near 82.
Sunny
 Sunday
Night
Sunday Night: Clear, with a low around 52.
Clear
 Monday

Monday: Sunny, with a high near 86.
Sunny
Hi 98 °F Lo 62 °F Hi 94 °F Lo 58 °F Hi 86 °F Lo 53 °F Hi 82 °F Lo 52 °F Hi 86 °F

Heat Advisory
 

This Afternoon
 
 Sunny and hot, with a high near 98. Northeast wind around 10 mph.
Tonight
 
 Clear, with a low around 62. Northwest wind 5 to 10 mph becoming northeast in the evening.
Friday
 
 Sunny, with a high near 94. Northeast wind 5 to 10 mph becoming west southwest in the afternoon.
Friday Night
 
 Clear, with a low around 58. West southwest wind around 5 mph becoming calm in the evening.
Saturday
 
 Sunny, with a high near 86. Light and variable wind becoming west northwest 5 to 10 mph in the morning.
Saturday Night
 
 Mostly clear, with a low around 53.
Sunday
 
 Sunny, with a high near 82.
Sunday Night
 
 Clear, with a low around 52.
Monday
 
 Sunny, with a high near 86.
Monday Night
 
 Clear, with a low around 61.
Tuesday
 
 Sunny, with a high near 87.
Tuesday Night
 
 Clear, with a low around 59.
Wednesday
 
 Sunny, with a high near 83.

 

Forecast from NOAA-NWS for San Luis Obispo CA.