Downtown Sacramento broke a record for the date Tuesday, reaching a high of 77 degrees, but temperatures are expected to drop about 10 degrees Wednesday as a storm system moves into the region.
The previous record for Feb. 16 was 76 degrees, set in 1977, said Johnnie Powell, a meteorologist with the National Weather Service.
Executive Airport reported a high of 75 degrees, tying the record set in 2007.
More than a week of unseasonably warm temperatures is expected to end Wednesday. The forecast for the Sacramento area calls for wind and rain, with a high about 68 degrees.
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The National Weather Service issued a wind advisory, effective from noon to midnight Wednesday. Southerly winds are expected to increase during the day, with the strongest winds late Wednesday afternoon and evening. Sustained winds of 25 mph are forecast, with gusts up to 45 mph.
Rain is expected to arrive in the Sacramento region around the evening commute on Wednesday, with the heaviest rainfall Wednesday night through Thursday morning.
Up to an inch of rain is forecast for the Central Valley, 1 to 2 inches in the foothills and 1 to 3 inches over the mountains, according to the National Weather Service.
A winter storm warning for the Sierra is in effect from 7 p.m. Wednesday to noon Thursday. A mix of rain and snow is expected beginning Wednesday afternoon and turning to snow Wednesday night. The heaviest snow is expected between 10 p.m. and 8 a.m. Snowfall rates could briefly reach 2 to 3 inches per hour, according to the National Weather Service.
Snow accumulations of 12 to 20 inches are expected around the 7,000-foot elevation, with 4 to 10 inches between 6,000 and 7,000 feet, including the Lake Tahoe area.
The detailed Wednesday forecast from the weather service for the Sacramento region:
▪ A chance of rain between 10 a.m. and 4 p.m., then showers after 4 p.m. The rain could be heavy at times. High near 68. Breezy, with a south-southeast wind 7 to 12 mph increasing to 19 to 24 mph. Winds could gust as high as 37 mph. Chance of precipitation is 80 percent. New precipitation amounts between a tenth and a quarter of an inch possible.
Wednesday night: Showers, with thunderstorms also possible after 10 p.m. Some of the storms could produce heavy rainfall. Low around 50. South wind 11 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 100 percent. New rainfall amounts between a quarter and a half inch possible.
Thursday: Showers likely, mainly before 4 p.m. Cloudy, with a high near 61. South wind around 13 mph. Chance of precipitation is 70 percent. New precipitation amounts of less than a tenth of an inch possible.
Thursday night: A 20 percent chance of showers before 10 p.m. Mostly cloudy, with a low around 48. Southeast wind 3 to 8 mph.
Friday: A 20 percent chance of rain. Mostly cloudy, with a high near 61.
Friday night: A 20 percent chance of rain. Mostly cloudy, with a low around 47.
Saturday: Patchy fog. Otherwise, mostly sunny, with a high near 66.
Saturday night: Partly cloudy, with a low around 47.
Sunday: Patchy fog. Otherwise, mostly sunny, with a high near 70.
Sunday night: Mostly clear, with a low around 47.
Monday: Patchy fog. Otherwise, sunny, with a high near 72.
Monday night: Mostly clear, with low around 49.
Tuesday: A slight chance of rain. Mostly sunny, with a high near 67.