National Weather Service United States Department of Commerce

Heavy rain and mountain snow across the northwestern U.S. this weekend

A Pacific storm system will continue to impact the West Coast through Sunday. Heavy rainfall could lead to flash flooding, river and small stream flooding, as well as mudslides and debris flows, especially over burn scars. At higher elevations, strong winds and heavy snowfall, with accumulations of 1 to 3 feet, could result in hazardous travel through mountain passes.
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Current Conditions

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4 Miles SSW Saint Helena CA

7 Day Forecast

Late
Afternoon

Chance Showers Chance for Measurable Precipitation 30%

Chance
Showers

High: 52 °F

Tonight

Chance Showers Chance for Measurable Precipitation 40%

Chance
Showers

Low: 50 °F

Sunday

Slight Chance Showers Chance for Measurable Precipitation 20%

Slight Chc
Showers

High: 57 °F

Sunday
Night

Mostly Cloudy

Mostly
Cloudy

Low: 50 °F

Monday

Sunny

Sunny

High: 62 °F

Monday
Night

Mostly Clear

Mostly
Clear

Low: 51 °F

Tuesday

Sunny

Sunny

High: 62 °F

Tuesday
Night

Partly Cloudy

Partly
Cloudy

Low: 50 °F

Wednesday

Slight Chance Rain

Slight Chc
Rain

High: 57 °F

Detailed Forecast

  • Late Afternoon A 30 percent chance of showers. Mostly cloudy, with a high near 52. South southwest wind around 10 mph. New precipitation amounts of less than a tenth of an inch possible.
  • Tonight A 40 percent chance of showers. Mostly cloudy, with a low around 50. South southwest wind 5 to 11 mph. New precipitation amounts of less than a tenth of an inch possible.
  • Sunday A 20 percent chance of showers. Mostly cloudy, with a high near 57. West wind 5 to 7 mph. New precipitation amounts of less than a tenth of an inch possible.
  • Sunday Night Mostly cloudy, with a low around 50. North wind around 6 mph.
  • Monday Sunny, with a high near 62. North wind 5 to 8 mph.
  • Monday Night Mostly clear, with a low around 51.
  • Tuesday Sunny, with a high near 62.
  • Tuesday Night Partly cloudy, with a low around 50.
  • Wednesday A slight chance of rain. Mostly sunny, with a high near 57.
  • Wednesday Night A slight chance of rain. Partly cloudy, with a low around 45.
  • Christmas Day A slight chance of rain. Mostly sunny, with a high near 54.
  • Thursday Night Mostly clear, with a low around 43.
  • Friday Sunny, with a high near 54.
  • Friday Night Mostly clear, with a low around 43.
  • Saturday Mostly sunny, with a high near 53.