A cold blast at Lake Tahoe starts Monday night, sets the tone for the week

SOUTH LAKE TAHOE, Calif. - A very cold winter system will arrive late Monday at Lake Tahoe, reminding us that we are still in the middle of winter. Warming temperatures appear across the region Monday but it is shortlived as the next system arrives Monday afternoon. This system will produce strong, chilly west-to-northwest winds along with chances for light snowfall. Wintry
temperatures return Tuesday and Wednesday, with slow moderation into next weekend, according to the National Weather Service (NWS) in Reno.

A pair of lows will glide south out of the Pacific Northwest on Valentine's Day This double cold front will bring very chilly temperatures, with the nighttime lows in single digits.

The prolonged stretch of cold weather hangs on through Thursday, after which we will see a slow moderation toward average by the end of next weekend. Longer-range outlooks suggest that cold weather will remain a possibility into late February, with below-average temperatures as the dominant signal. We also see an above-average potential to see more precipitation across the area through late February

The weekly forecast from NWS Reno for South Lake Tahoe:

Monday - Sunny, with a high near 48. Southwest wind 5 to 15 mph.

Monday Night - A slight chance of snow between 10 pm and 4 am. Partly cloudy, with a low of around 11. South wind 10 to 15 mph, with gusts as high as 25 mph. The chance of precipitation is 20%.

Tuesday - A 30 percent chance of snow after 10 am. Partly sunny, with a high near 26. Northwest wind around 10 mph. New snow accumulation of less than one inch is possible.

Tuesday Night - Partly cloudy, with a low around 6. Northeast wind around 15 mph, with gusts as high as 30 mph.

Wednesday - Sunny, with a high near 29. East wind around 10 mph.

Wednesday Night - Mostly clear, with a low around 8.

Thursday - Mostly sunny, with a high near 37.

Thursday Night - Mostly cloudy, with a low of around 15.

Friday - A chance of snow after 10 am. Partly sunny, with a high near 34.

Friday NightA slight chance of snow. Mostly cloudy, with a low of around 13.

Saturday - Mostly sunny, with a high near 37.

Saturday Night - Partly cloudy, with a low of around 15.

Sunday - Mostly sunny, with a high near 42.