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

Dangerous Surf and Rip Currents for most of the Atlantic Shoreline; Record Heat for the West

Hurricane Erin continues to track northward. Tropical storm force winds, storm surge conditions will increase for the Outer Banks today and portions of coastal Virginia. Life-threatening surf and rip currents along much of the east coast of the U.S. this week. Major to extreme HeatRisk with new record high temperatures are expected for many areas of the western U.S. this week. Read More >

Hazardous Weather Conditions

Current conditions at

POR31-Iron Horse (LIB09)

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

NA

83°F

28°C

Humidity 13%
Wind Speed WNW 3 MPH
Barometer NA
Dewpoint 27°F (-3°C)
Visibility NA
Heat Index80°F (27°C)
Last update 20 Aug 02:20 PM PDT
Extended Forecast for

2 Miles SW Portola CA

Heat Advisory August 22, 12:00pm until August 23, 09:00am
Click here for hazard details and duration
Heat Advisory

  • This Afternoon

    This Afternoon: Sunny, with a high near 88. West wind around 5 mph.

    High: 88 °F

    Sunny

  • Tonight

    Tonight: Clear, with a low around 47. West wind 5 to 10 mph becoming light and variable in the evening.

    Low: 47 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 93. Light and variable wind becoming west 5 to 10 mph in the afternoon.

    High: 93 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 54. West wind 5 to 10 mph becoming light and variable in the evening.

    Low: 54 °F

    Partly Cloudy

  • Friday

    Friday: Sunny, with a high near 94. Light and variable wind becoming southwest 5 to 10 mph in the afternoon.

    High: 94 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 56. Southwest wind 10 to 15 mph becoming light south in the evening.

    Low: 56 °F

    Mostly Clear

  • Saturday

    Saturday: A 20 percent chance of showers and thunderstorms after 11am. Mostly sunny, with a high near 93.

    High: 93 °F

    Slight Chance
    T-storms

  • Saturday Night

    Saturday Night: A slight chance of showers and thunderstorms before 11pm. Partly cloudy, with a low around 57.

    Low: 57 °F

    Slight Chance
    T-storms then
    Partly Cloudy

  • Sunday

    Sunday: A chance of showers and thunderstorms after 11am. Mostly sunny, with a high near 89.

    High: 89 °F

    Chance
    T-storms

Detailed Forecast

This Afternoon
Sunny, with a high near 88. West wind around 5 mph.
Tonight
Clear, with a low around 47. West wind 5 to 10 mph becoming light and variable in the evening.
Thursday
Sunny, with a high near 93. Light and variable wind becoming west 5 to 10 mph in the afternoon.
Thursday Night
Partly cloudy, with a low around 54. West wind 5 to 10 mph becoming light and variable in the evening.
Friday
Sunny, with a high near 94. Light and variable wind becoming southwest 5 to 10 mph in the afternoon.
Friday Night
Mostly clear, with a low around 56. Southwest wind 10 to 15 mph becoming light south in the evening.
Saturday
A 20 percent chance of showers and thunderstorms after 11am. Mostly sunny, with a high near 93.
Saturday Night
A slight chance of showers and thunderstorms before 11pm. Partly cloudy, with a low around 57.
Sunday
A chance of showers and thunderstorms after 11am. Mostly sunny, with a high near 89.
Sunday Night
A slight chance of showers and thunderstorms before 11pm. Partly cloudy, with a low around 54.
Monday
A chance of showers and thunderstorms. Mostly sunny, with a high near 87.
Monday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 52.
Tuesday
A chance of showers and thunderstorms. Partly sunny, with a high near 82.
Basemap Options
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles SW Portola CA
 39.79°N 120.49°W (Elev. 4987 ft)
Last Update:
2:15 pm PDT Aug 20, 2025
Forecast Valid:
2pm PDT Aug 20, 2025-6pm PDT Aug 26, 2025
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation