In Lytle Creek, rain came down at a quick and steady clip overnight into Saturday morning. Snow flurries were also seen in the area off the 15 Freeway.
The snow is making for a treacherous commute through mountain roads. Motorists were required to carry chains when traveling on the 15 or 138 freeways.
Traveling will also be impacted along Highway 33 in Ventura County and Interstate 5 from Santa Clarita through the Grapevine. Wintry conditions could potentially affect Highway 14 across the Antelope Valley as well as the Cajon Pass, both of which were hit with 1 to 2 inches of snow overnight.
Heavy snow and gusty winds could cause whiteout conditions with visibility near zero, especially above 5,000 feet. Accumulating snow is expected along the 5, 14 and 15 freeways on Saturday.
Steady snow fell in Yucaipa near Oak Glen Road with several inches accumulating overnight. Residents were waking up to a few inches of snow, enough to make a snowman.
"The nice thing about it in California, when it snows it lasts for 12 to 24 hours and then it's gone," said Yucaipa resident Lloyd Rekstad. "I grew up in Minnesota where we lived with it all winter long, and there was no end to the snow. But here it just comes and goes so quickly. We love to have as much as we can get."
The hardest hit area is in the mountains, in the Arrowhead community.
Victorville also saw snow Saturday. Snow flurries there gave neighborhoods a good dusting of snow.
Snow levels could drop to 1,500 feet on Saturday and even as low as 500 feet up north in some areas including San Luis Obispo and Santa Barbara.
Up north in Frazier Park, a winter storm warning was in effect with heavy snow expected on Saturday. The warning was expected to last until 3 a.m. Sunday. About 1 to 2 feet of snow was expected to fall in higher elevations and around 6 to 12 inches for lower elevations.
Saturday morning, much of the widespread rain was lingering near the leading edge of the cold front over Orange County and Inland Empire, where flash flood warnings were still in effect and expected to expire around noon.
The cold and unstable conditions behind the front may bring on thunderstorms in some of the northern areas Saturday afternoon, with the possibility of some heavy downpours and small hail. It will also be cold and windy on Saturday night into Sunday.
Wintry conditions could potentially affect the Cajon Pass with 1 to 2 inches of snow overnight.
The rain was expected to clear out toward late Saturday night as more stable air moves in. By Sunday morning, temperatures will still be unseasonably low but expect to see some sunshine and dry conditions.
In Northern California, San Francisco got a rare dusting of snow overnight and early Saturday morning. The last time it snowed in San Francisco was 35 years ago. That was in 1976, when they got an entire inch of it.