Northern California Sees Temperature Swings This Week
Northern California is experiencing a dynamic weather pattern this week, with temperatures fluctuating significantly across the region. On the North Coast, a stable late-summer marine layer is bringing morning fog and partial afternoon sunshine, keeping highs in the low-to-mid 60s (16-18°C). In the valleys, the first full day of fall starts warm, with highs around 90°F (32°C), but a cooling trend is expected by Friday, dropping temperatures to the low 80s (27-28°C) through the weekend. Mountain regions are seeing a brief heat peak midweek, with highs slightly above average, followed by a sharp cooldown and gusty winds as a low-pressure system moves inland. A weak cold front late Thursday into Friday may bring light rain or drizzle to the North Coast, particularly in Del Norte and northern Humboldt counties.