Fri Feb 21 04:48:06 PM EST 2025 San Luis Obispo County Interior Valleys- Including Carrizo Plain, Creston, and Shandon 147 PM PST Fri Feb 21 2025 .TONIGHT...Mostly clear. Lows in the mid 30s to lower 40s. .SATURDAY...Mostly sunny. Highs in the mid 60s to mid 70s. .SATURDAY NIGHT...Mostly clear. Lows in the upper 30s to mid 40s. .SUNDAY...Sunny. Highs in the mid 70s to lower 80s. .SUNDAY NIGHT...Mostly clear. Lows in the 40s to around 50. .MONDAY...Sunny. Highs in the upper 60s to mid 70s. .MONDAY NIGHT...Mostly clear. Lows in the upper 30s and 40s. .TUESDAY...Sunny. Highs in the mid 60s to mid 70s. .TUESDAY NIGHT...Mostly clear. Lows in the upper 30s to mid 40s. .WEDNESDAY...Sunny. Highs in the 70s to around 80. .WEDNESDAY NIGHT...Partly cloudy. Lows in the mid 40s to mid 50s. .THURSDAY...Mostly cloudy in the morning then partly cloudy. Highs in the 70s. .THURSDAY NIGHT...Partly cloudy with a 20 percent chance of rain. Lows in the 40s to around 50. .FRIDAY...Partly cloudy. Highs in the mid 60s to lower 70s.