A Pacific frontal system is forecast to slide into Northern California Friday afternoon, delivering rain and snow on Halloween.
Thursday will see the last of the mild, warm weather for a while. The high temperature Thursday is expected to be 79 under mostly sunny skies.
Clouds start to move in Thursday night, followed by a cold front that will move through Friday, bringing precipitation and cooler temperatures.
Trick-or-treaters could see fairly wet conditions Friday evening in Sacramento, according to the National Weather Service. Snow levels Friday evening are expected to be around the 7,000-foot elevation level – then drop overnight to around 5,000 feet by Saturday morning.
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Predictions from the weather service for rain Friday through Saturday:
Sacramento: 0.50 of an inch
Yuba City: 0.46
Snowfall predictions for the same period:
Blue Canyon: 1.4 inches
Donner Summit: 9.0
Kings Beach: 4.0
Echo Summit: 3.7
South Lake Tahoe: 3.7
The detailed, seven-day forecast for the Sacramento region from the NWS:
Thursday: Mostly sunny, with a high near 79. Calm wind becoming south 5 to 7 mph in the afternoon.
Thursday night: Mostly cloudy, with a low around 56. South wind 7 to 9 mph.
Friday: Rain likely, then rain and possibly a thunderstorm after 11 a.m. High near 67. South wind 6 to 8 mph. Chance of precipitation is 80 percent. New rainfall amounts between a quarter and a half inch possible.
Friday night: Showers likely and possibly a thunderstorm. Cloudy, with a low around 50. South wind around 8 mph. Chance of precipitation is 70 percent. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Saturday: A 40 percent chance of showers. Mostly cloudy, with a high near 63. South wind around 10 mph.
Saturday night: Partly cloudy, with a low around 47.
Sunday: Sunny, with a high near 67.
Sunday night: Mostly clear, with a low around 45.
Monday: Mostly sunny, with a high near 69.
Monday night: Mostly clear, with a low around 48.
Tuesday: Mostly sunny, with a high near 71.
Tuesday night: Mostly clear, with a low around 51.
Wednesday: Sunny, with a high near 75.
Call The Bee’s Bill Lindelof, (916) 321-1079.