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

Excessive Rainfall Possible This Weekend; October Heat Wave in California

A slow moving front will be the focus area for heavy to excessive rainfall and a threat for flash/urban flooding across the northern Gulf Coast and Southeast U.S. through this weekend. Abnormally hot, potentially record-breaking, temperatures will impact southern California and stretch north toward the Bay Area and Central Valley into next week. Read More >

Current conditions at

Portola - Gulling Street (CQ236)

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

NA

43°F

6°C

Humidity 59%
Wind Speed NA NA MPH
Barometer NA
Dewpoint 30°F (-1°C)
Visibility NA
Last update 04 Oct 05:00 AM PDT
Extended Forecast for

Portola CA

  • Today

    Today: Partly sunny, with a high near 86. Calm wind becoming west around 5 mph in the afternoon.

    High: 86 °F

    Partly Sunny

  • Tonight

    Tonight: A 20 percent chance of showers after 2am. Mostly cloudy, with a low around 48. West wind around 5 mph becoming calm in the evening.

    Low: 48 °F

    Mostly Cloudy
    then Slight
    Chance
    Showers

  • Monday

    Monday: Sunny, with a high near 85. Calm wind becoming west around 5 mph.

    High: 85 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 44. West wind around 5 mph becoming calm in the evening.

    Low: 44 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 88. Calm wind becoming east around 5 mph.

    High: 88 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Clear, with a low around 44. Northwest wind around 5 mph becoming calm in the evening.

    Low: 44 °F

    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 89.

    High: 89 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Clear, with a low around 47.

    Low: 47 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 86.

    High: 86 °F

    Sunny

Detailed Forecast

Today
Partly sunny, with a high near 86. Calm wind becoming west around 5 mph in the afternoon.
Tonight
A 20 percent chance of showers after 2am. Mostly cloudy, with a low around 48. West wind around 5 mph becoming calm in the evening.
Monday
Sunny, with a high near 85. Calm wind becoming west around 5 mph.
Monday Night
Mostly clear, with a low around 44. West wind around 5 mph becoming calm in the evening.
Tuesday
Sunny, with a high near 88. Calm wind becoming east around 5 mph.
Tuesday Night
Clear, with a low around 44. Northwest wind around 5 mph becoming calm in the evening.
Wednesday
Sunny, with a high near 89.
Wednesday Night
Clear, with a low around 47.
Thursday
Sunny, with a high near 86.
Thursday Night
Mostly clear, with a low around 47.
Friday
Sunny, with a high near 81.
Friday Night
Mostly clear, with a low around 42.
Saturday
Mostly sunny, with a high near 70.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Portola CA
 39.81°N 120.46°W (Elev. 4984 ft)
Last Update:
4:30 am PDT Oct 4, 2026
Forecast Valid:
6am PDT Oct 4, 2026-6pm PDT Oct 10, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation