National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Lake Effect Snow through Saturday: A Series of Storms Impact the West

Lake effect snow showers will continue through Saturday downwind of Lakes Erie, Ontario and the eastern portion of Lake Superior. A series of storm systems will continue to impact California and the Pacific Northwest through the weekend and into next week, bringing widespread rainfall, mountain snowfall, and gusty winds. Coastal flooding is expected in northern California. Read More >

Hazardous Weather Conditions

Current conditions at

Portola - Gulling Street (CQ236)

Lat: 39.81336°NLon: 120.47069°WElev: 4895.0ft.

NA

36°F

2°C

Humidity 95%
Wind Speed NA NA MPH
Barometer NA
Dewpoint 35°F (2°C)
Visibility NA
Last update 01 Jan 11:00 PM PST
Extended Forecast for

Portola CA

Flood Watch January 3, 10:00am until January 5, 04:00pm
Click here for hazard details and duration
Flood Watch

  • Overnight

    Overnight: A 40 percent chance of rain. Snow level 6400 feet. Mostly cloudy, with a low around 31. Southwest wind around 5 mph.

    Low: 31 °F

    Chance Rain

  • Friday

    Friday: Partly sunny, with a high near 47. Calm wind becoming southwest around 5 mph in the afternoon.

    High: 47 °F

    Partly Sunny

  • Friday Night

    Friday Night: Rain, mainly after 10pm. Snow level 6300 feet rising to 6800 feet after midnight. Low around 33. South wind 5 to 10 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 33 °F

    Rain

  • Saturday

    Saturday: Rain. Snow level 6700 feet. High near 44. South wind around 10 mph, with gusts as high as 25 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

    High: 44 °F

    Rain

  • Saturday Night

    Saturday Night: Rain. Snow level 6100 feet. Low around 33. South wind around 10 mph, with gusts as high as 25 mph. Chance of precipitation is 90%. New precipitation amounts between a half and three quarters of an inch possible.

    Low: 33 °F

    Rain

  • Sunday

    Sunday: Rain. Snow level 5800 feet. High near 41. South wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 100%. New precipitation amounts between three quarters and one inch possible.

    High: 41 °F

    Rain

  • Sunday Night

    Sunday Night: Rain and snow, becoming all snow after 1am. Snow level 5200 feet. Low around 31. Chance of precipitation is 90%. New snow accumulation of less than one inch possible.

    Low: 31 °F

    Rain/Snow

  • Monday

    Monday: Snow likely. Mostly cloudy, with a high near 40.

    High: 40 °F

    Snow Likely

  • Monday Night

    Monday Night: A chance of snow, mainly before 4am. Mostly cloudy, with a low around 23.

    Low: 23 °F

    Chance Snow

Detailed Forecast

Overnight
A 40 percent chance of rain. Snow level 6400 feet. Mostly cloudy, with a low around 31. Southwest wind around 5 mph.
Friday
Partly sunny, with a high near 47. Calm wind becoming southwest around 5 mph in the afternoon.
Friday Night
Rain, mainly after 10pm. Snow level 6300 feet rising to 6800 feet after midnight. Low around 33. South wind 5 to 10 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.
Saturday
Rain. Snow level 6700 feet. High near 44. South wind around 10 mph, with gusts as high as 25 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Saturday Night
Rain. Snow level 6100 feet. Low around 33. South wind around 10 mph, with gusts as high as 25 mph. Chance of precipitation is 90%. New precipitation amounts between a half and three quarters of an inch possible.
Sunday
Rain. Snow level 5800 feet. High near 41. South wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 100%. New precipitation amounts between three quarters and one inch possible.
Sunday Night
Rain and snow, becoming all snow after 1am. Snow level 5200 feet. Low around 31. Chance of precipitation is 90%. New snow accumulation of less than one inch possible.
Monday
Snow likely. Mostly cloudy, with a high near 40.
Monday Night
A chance of snow, mainly before 4am. Mostly cloudy, with a low around 23.
Tuesday
A slight chance of snow before 10am. Partly sunny, with a high near 42.
Tuesday Night
A slight chance of snow. Mostly cloudy, with a low around 21.
Wednesday
A chance of snow. Partly sunny, with a high near 41.
Wednesday Night
A chance of snow. Mostly cloudy, with a low around 21.
Thursday
A chance of snow. Partly sunny, with a high near 38.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Portola CA
 39.81°N 120.46°W (Elev. 4984 ft)
Last Update:
9:15 pm PST Jan 1, 2026
Forecast Valid:
12am PST Jan 2, 2026-6pm PST Jan 8, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation