Overview
- The National Weather Service issued a Dense Fog Advisory through late morning, with visibility dropping below a quarter mile at Sacramento International, McClellan Park and parts of the Central Valley before improving by midday.
- Forecasters expect valley fog to redevelop overnight and repeat through the weekend, holding valley highs near the low 50s while foothills and Sierra areas see more sun and mid‑50s.
- An early‑morning cold advisory covered the interior Central Coast with lows in the 30s and isolated 20s in higher terrain, and no extension is planned tonight as clouds limit cooling.
- Temperatures trend warmer into next week under strengthening high pressure, reaching the mid‑70s in the interior Central Coast by midweek with widespread 60s to near 70 around the Bay Area.
- Long‑range guidance hints at a possible mid‑December pattern change with increasing precipitation odds in the Dec. 12–18 window, although local forecasts still emphasize high uncertainty and continued dryness for now.