It will be a chilly start to the last Wednesday of 2020 as morning lows dip to the 20s across valley locations. As a result, a frost advisory will remain in place through 8 a.m. for coastal and valley regions in San Luis Obispo and Santa Barbara Counties.
Northwesterly winds will increase heading into the afternoon hours, with peak wind speeds between 15 and 25 miles per hour. Temperature-wise, daytime highs will be fairly similar to Tuesday. Along the coast and across coastal valleys, temperatures are expected to reach the low to mid-60s. As for the interiors, expect temperatures to stay within the upper 50s and low 60s range.
A high surf advisory that was set to expire Tuesday has been extended through New Year's Day. The advisory still covers beaches in San Luis Obispo County and northern Santa Barbara County and the surf will range from eight to 12 feet.
The start of the new year will mean new rain chances. The Central Coast could get a slight douse of rain showers Sunday and Monday but it looks like higher rain chances will be towards the middle of next week on Wednesday. The GFS model is indicating that moderate rainfall could reach San Luis Obispo and Santa Barbara Counties by Wednesday. There will be more details on rainfall amounts as the event nears.