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

POR31-Iron Horse (LIB09)

Lat: 39.77898°NLon: 120.50284°WElev: 5001.0ft.

NA

66°F

19°C

Humidity 32%
Wind Speed ENE 1 MPH
Barometer NA
Dewpoint 36°F (2°C)
Visibility NA
Last update 04 Oct 09:50 AM PDT
Extended Forecast for

2 Miles SSW Portola CA

  • Today

    Today: Partly sunny, with a high near 85. Calm wind becoming west around 5 mph in the afternoon.

    High: 85 °F

    Partly Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 48. West wind around 5 mph becoming calm in the evening.

    Low: 48 °F

    Mostly Cloudy

  • Monday

    Monday: A 10 percent chance of showers after 5pm. Mostly sunny, with a high near 84. Calm wind becoming southwest around 5 mph in the afternoon.

    High: 84 °F

    Slight Chance
    Showers

  • Monday Night

    Monday Night: A 20 percent chance of showers before 8pm. Clear, with a low around 46. Southwest wind around 5 mph becoming calm in the evening.

    Low: 46 °F

    Slight Chance
    Showers then
    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 86. Calm wind becoming east around 5 mph.

    High: 86 °F

    Sunny

  • Tuesday Night

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

    Low: 44 °F

    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 87.

    High: 87 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Clear, with a low around 46.

    Low: 46 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 86.

    High: 86 °F

    Sunny

Detailed Forecast

Today
Partly sunny, with a high near 85. Calm wind becoming west around 5 mph in the afternoon.
Tonight
Mostly cloudy, with a low around 48. West wind around 5 mph becoming calm in the evening.
Monday
A 10 percent chance of showers after 5pm. Mostly sunny, with a high near 84. Calm wind becoming southwest around 5 mph in the afternoon.
Monday Night
A 20 percent chance of showers before 8pm. Clear, with a low around 46. Southwest wind around 5 mph becoming calm in the evening.
Tuesday
Sunny, with a high near 86. Calm wind becoming east around 5 mph.
Tuesday Night
Clear, with a low around 44. West wind around 5 mph becoming calm in the evening.
Wednesday
Sunny, with a high near 87.
Wednesday Night
Clear, with a low around 46.
Thursday
Sunny, with a high near 86.
Thursday Night
Mostly clear, with a low around 46.
Friday
Sunny, with a high near 81.
Friday Night
Mostly clear, with a low around 41.
Saturday
Mostly sunny, with a high near 69.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles SSW Portola CA
 39.79°N 120.49°W (Elev. 4987 ft)
Last Update:
8:56 am PDT Oct 4, 2026
Forecast Valid:
10am PDT Oct 4, 2026-6pm PDT Oct 10, 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