California Winter Weather Update: December Fog and 50–56° Highs in Sacramento This Week

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A thick blanket of dense fog hugs Sacramento’s streets this morning, softening headlights and blurring traffic signals along I-5, Highway 50, and surface streets from Midtown to Elk Grove. Moist, chilled air settles low to the ground, muting sound and making early travel feel sluggish and uncertain. Drivers should reduce speed and leave extra space—visibility pockets may shift suddenly through the late morning.

According to the National Weather Service, widespread dense fog will linger through 8 a.m. before skies turn mostly cloudy with a cool high near 50°. Calm winds keep the fog stubborn, and some patches may redevelop in sheltered areas through midday. Tuesday brings a slow brightening trend with highs near 53° as clouds decrease. By Wednesday, partly sunny skies emerge and temperatures rise toward the mid-50s.

While Sacramento enjoys a quieter early-December stretch, the broader U.S. weather pattern is anything but calm. Meteorologists continue tracking a vigorous Alberta clipper that may deliver bi-daily snow across the Great Lakes December 11–17, with lake-effect bands impacting Michigan, Wisconsin, Indiana, Illinois, Ohio, and western New York. An Arctic blast is also expected to sweep into New England, the Mid-Atlantic, the Ohio Valley, and upper Midwest next weekend, delivering the coldest air of the season and creating widespread flash-freeze risks.

For Northern California, the week stays dry and seasonably cool—ideal for holiday prep, outdoor errands, and early winter decorating before potential pattern shifts next week.

Five-Day Outlook (Sacramento, CA)

Tuesday: Mostly sunny, high 53°.
Wednesday: Partly sunny, high 56°.
Thursday: Partly sunny, high 57°.
Friday: Mostly sunny, high 58°.
Saturday: Mostly sunny, high 55°.