Freezing temperatures are expected to linger into mid-week, before a modest warming trend in Northern California.
The cold snap that has threatened citrus and frosted lawns is still in place Tuesday. The frigid weather is caused by a persistent jet stream out of Canada that is pushing dry Arctic air across much of the United States.
The National Weather Service notes that Tuesday morning is a mix of temperatures. While much of the Sacramento-San Joaquin Valley is running several degrees cooler than 24-hours ago, due to lighter winds, temperatures in the foothills and mountains are much warmer.
The low on Monday was 25 degrees in Sacramento, a little above the record cold set in 1932 of 23 degrees. Tuesday morning’s unofficial low is 27 degrees in Sacramento.
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The detailed, 7-day forecast for the Sacramento region from the NWS:
Today: Widespread frost before 10 a.m. Otherwise, sunny, with a high near 51. Calm wind becoming north northwest around 5 mph in the morning.
Tonight: Widespread frost, mainly after 4 a.m. Otherwise, clear, with a low around 31. Calm wind.
Wednesday: Widespread frost before 10 a.m. Otherwise, sunny, with a high near 54. Light northwest wind.
Wednesday Night: Patchy frost after 10 p.m. Otherwise, clear, with a low around 33. Light north wind.
Thursday: Patchy frost before 10 a.m. Otherwise, sunny, with a high near 57. Calm wind.
Thursday Night: Partly cloudy, with a low around 37.
Friday: Mostly sunny, with a high near 57.
Friday Night: Mostly clear, with a low around 38.
Saturday: Sunny, with a high near 57.
Saturday Night: Mostly clear, with a low around 38.
Sunday: Sunny, with a high near 61.
Sunday Night: Partly cloudy, with a low around 39.
Monday: Sunny, with a high near 60.