SOUTH LAKE TAHOE, Calif. – Dry weather with unseasonably warm temperatures will prevail early this week in the region with enhanced afternoon breezes Monday and Tuesday. The pattern will shift again to cooler and wetter conditions by midweek with valley rain and high elevation snow. There may be isolated and scattered thunderstorms Thursday and Friday.

The arrival of a low pressure system brings cooler and wetter conditions, with chances of precipitation by mid-afternoon Wednesday. Snow levels are high, over 9000`, so the main precipitation type will be rain, according to the National Weather Service (NWS) in Reno.

The weekly forecast for South Lake Tahoe from NWS Reno:

Monday

Mostly sunny, with a high near 64. Calm wind becoming west around 5 mph in the afternoon.

Monday Night

Mostly clear, with a low around 34. West wind around 5 mph, becoming calm in the evening.

Tuesday

Sunny, with a high near 64. Calm wind becoming west around 5 mph in the afternoon.

Tuesday Night

Partly cloudy, with a low around 34. West wind around 5 mph, becoming calm in the evening.

Wednesday

A 20 percent chance of showers after 11 am. Snow level 8000 feet rising to 9200 feet in the afternoon. Mostly sunny, with a high near 61. Calm wind becoming west around 5 mph in the afternoon.

Wednesday Night

A 20 percent chance of showers before 11 pm. Snow level 9400 feet, lowering to 8600 feet after midnight. Partly cloudy, with a low around 34.

Thursday

A slight chance of showers, then a chance of showers and thunderstorms after 11 am. Snow level 8500 feet. Partly sunny, with a high near 58.

Thursday Night

Showers likely and possibly a thunderstorm before 11 pm, then a chance of showers. Snow level 9000 feet, lowering to 8200 feet after midnight. Mostly cloudy, with a low around 33.

Friday

A chance of showers, then showers and possibly a thunderstorm after 11 am. Snow level 8100 feet. Mostly cloudy, with a high near 53.

Friday Night

Showers likely. Snow level 8200 feet, lowering to 7600 feet after midnight. Mostly cloudy, with a low around 31.

Saturday

A chance of showers and thunderstorms. Snow level 7400 feet rising to 8000 feet in the afternoon. Partly sunny, with a high near 53.

Saturday Night

A chance of rain and snow showers. Snow level 8200 feet, lowering to 7500 feet after midnight. Partly cloudy, with a low around 31.

Sunday

A chance of showers. Snow level 7200 feet. Mostly sunny, with a high near 55.