Northern California's Stunning September Morning: Your Detailed Forecast for September 26, 2025

Good morning, Northern California! As we greet September 26, 2025, prepare for another splendid day unfolding across our diverse region. The day promises a beautiful blend of clearing skies and comfortable warmth, setting a delightful tone for the start of your Friday.

For those waking up in the Sacramento Valley and the Central Valley, you might be noticing a bit of patchy fog lingering in some low-lying areas.

Don't worry, this morning veil is expected to lift quickly, giving way to abundant sunshine by mid-morning. Temperatures in these inland regions will climb steadily, reaching a pleasant range of 88 to 92 degrees Fahrenheit. Expect light winds, making it an ideal day to enjoy the outdoors.

Along the picturesque Bay Area coastline, a refreshing start is on the cards.

While some marine layer clouds might be present early on, they too will dissipate, revealing clear, sunny skies. Coastal temperatures will be much milder, hovering in the comfortable mid-70s, perfect for a walk along the beach or an afternoon at an outdoor cafe. Inland Bay Area communities will see slightly warmer conditions, pushing into the low 80s.

Heading into the Sierra Nevada Foothills and higher elevations, expect pristine, clear conditions from the get-go.

With absolutely no chance of precipitation and light breezes, it's a fantastic day for any mountain activities. Temperatures in the Foothills will range from the high 70s to the mid-80s, feeling wonderfully crisp and dry.

Air quality across the region is anticipated to be good to moderate today.

However, as the day progresses and temperatures rise, those with sensitivities should remain aware of potential ground-level ozone build-up, especially in the afternoon hours in urban centers. It's always a good idea to check local air quality reports if you plan strenuous outdoor activities.

Looking ahead to the weekend, the forecast remains consistently beautiful.

We anticipate continued warm and dry conditions throughout Saturday and Sunday, with temperatures mirroring today's values. There are no significant weather systems on the horizon for the next several days, meaning plenty of sunshine to enjoy all your weekend plans. So, step outside and soak up the beautiful Northern California autumn!