Tracking Late December Winter Storm Expected to Impact the Northern Plains through the Northeast U.S.

A winter storm system will rapidly intensify over the Midwest on Sunday and track through the Great Lakes on Monday. Periods of heavy snow are anticipated across the Upper Great Lakes late Sunday and continuing into Monday. At least 1/10 inch of ice accumulation is expected from a wintry mix across much of the interior Northeast U.S. starting Sunday afternoon. Read More >

Current conditions at

Portola - Gulling Street (CQ236)

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

NA

24°F

-4°C

Humidity 92%
Wind Speed NA NA MPH
Barometer NA
Dewpoint 22°F (-6°C)
Visibility NA
Last update 28 Dec 12:00 AM PST
Extended Forecast for

Portola CA

  • Overnight

    Overnight: Areas of freezing fog. Mostly cloudy, with a low around 20. Calm wind.

    Low: 20 °F

    Areas
    Freezing Fog

  • Sunday

    Sunday: Areas of freezing fog before 9am. Partly sunny, then gradually becoming sunny, with a high near 39. East wind around 5 mph.

    High: 39 °F

    Areas
    Freezing Fog
    then Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 18. East wind around 5 mph.

    Low: 18 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 44. East wind around 5 mph.

    High: 44 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 17. East wind around 5 mph.

    Low: 17 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 48. East wind around 5 mph.

    High: 48 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 19.

    Low: 19 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 52.

    High: 52 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: A slight chance of rain between 10pm and 4am, then a chance of rain and snow.  Snow level 7400 feet. Mostly cloudy, with a low around 26.

    Low: 26 °F

    Slight Chance
    Rain then
    Chance
    Rain/Snow

Detailed Forecast

Overnight
Areas of freezing fog. Mostly cloudy, with a low around 20. Calm wind.
Sunday
Areas of freezing fog before 9am. Partly sunny, then gradually becoming sunny, with a high near 39. East wind around 5 mph.
Sunday Night
Mostly clear, with a low around 18. East wind around 5 mph.
Monday
Sunny, with a high near 44. East wind around 5 mph.
Monday Night
Mostly clear, with a low around 17. East wind around 5 mph.
Tuesday
Sunny, with a high near 48. East wind around 5 mph.
Tuesday Night
Mostly clear, with a low around 19.
Wednesday
Mostly sunny, with a high near 52.
Wednesday Night
A slight chance of rain between 10pm and 4am, then a chance of rain and snow. Snow level 7400 feet. Mostly cloudy, with a low around 26.
New Year's Day
A chance of rain and snow before 10am, then a chance of rain. Snow level 6500 feet rising to 7500 feet in the afternoon. Mostly cloudy, with a high near 50.
Thursday Night
Rain and snow likely. Snow level 7000 feet lowering to 6200 feet after midnight . Mostly cloudy, with a low around 29.
Friday
Rain and snow likely. Snow level 6200 feet. Mostly cloudy, with a high near 47.
Friday Night
Rain and snow likely. Snow level 5700 feet lowering to 5100 feet after midnight . Mostly cloudy, with a low around 29.
Saturday
A chance of rain and snow. Snow level rising to 5400 feet in the afternoon. Mostly cloudy, with a high near 47.
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ABOUT THIS FORECAST

 
Point Forecast:
Portola CA
 39.81°N 120.46°W (Elev. 4984 ft)
1:15 am PST Dec 28, 2025
1am PST Dec 28, 2025-6pm PST Jan 3, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database