Flooding Risks from Tropical Moisture Across the Southeast and Southwest

Tropical moisture from Isaias and Rachel will impact portions of the Southeast and Southwest this weekend. Flash flooding, strong winds and even a threat for severe thunderstorms and tornadoes are possible. Meanwhile, strong winds and dry fuels are raising fire weather concerns across the central Great Basin and western High Plains. Across the northern Rockies, first winter storm of the season. Read More >

Current conditions at

POR31-Iron Horse (LIB09)

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

NA

39°F

4°C

Humidity 58%
Wind Speed SSW 0 MPH
Barometer NA
Dewpoint 25°F (-4°C)
Visibility NA
Last update 11 Oct 04:20 AM PDT
Extended Forecast for

4 Miles SW Portola CA

  • Today

    Today: A 20 percent chance of showers after 2pm.  Snow level 8000 feet. Mostly sunny, with a high near 59. Calm wind becoming east around 5 mph in the afternoon.

    High: 59 °F

    Sunny then
    Slight Chance
    Showers

  • Tonight

    Tonight: Partly cloudy, with a low around 28. Northeast wind around 5 mph becoming calm  in the evening.

    Low: 28 °F

    Partly Cloudy

  • Columbus Day

    Columbus Day: A slight chance of rain and snow showers before 11am, then a chance of rain showers after 2pm.  Snow level 5700 feet rising to 6800 feet in the afternoon. Partly sunny, with a high near 51. Calm wind becoming west around 5 mph in the afternoon.  Chance of precipitation is 50%. Little or no snow accumulation expected.

    High: 51 °F

    Slight Chance
    Rain/Snow
    then Chance
    Showers

  • Monday Night

    Monday Night: A 40 percent chance of showers before 11pm.  Snow level 6800 feet lowering to 5500 feet after midnight . Partly cloudy, with a low around 23. West wind around 5 mph becoming calm  in the evening.

    Low: 23 °F

    Chance
    Showers then
    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 61. Calm wind becoming northeast around 5 mph in the afternoon.

    High: 61 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Clear, with a low around 26. North wind around 5 mph becoming calm.

    Low: 26 °F

    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 65.

    High: 65 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Clear, with a low around 30.

    Low: 30 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 67.

    High: 67 °F

    Sunny

Detailed Forecast

Today
A 20 percent chance of showers after 2pm. Snow level 8000 feet. Mostly sunny, with a high near 59. Calm wind becoming east around 5 mph in the afternoon.
Tonight
Partly cloudy, with a low around 28. Northeast wind around 5 mph becoming calm in the evening.
Columbus Day
A slight chance of rain and snow showers before 11am, then a chance of rain showers after 2pm. Snow level 5700 feet rising to 6800 feet in the afternoon. Partly sunny, with a high near 51. Calm wind becoming west around 5 mph in the afternoon. Chance of precipitation is 50%. Little or no snow accumulation expected.
Monday Night
A 40 percent chance of showers before 11pm. Snow level 6800 feet lowering to 5500 feet after midnight . Partly cloudy, with a low around 23. West wind around 5 mph becoming calm in the evening.
Tuesday
Sunny, with a high near 61. Calm wind becoming northeast around 5 mph in the afternoon.
Tuesday Night
Clear, with a low around 26. North wind around 5 mph becoming calm.
Wednesday
Sunny, with a high near 65.
Wednesday Night
Clear, with a low around 30.
Thursday
Sunny, with a high near 67.
Thursday Night
Clear, with a low around 31.
Friday
Sunny, with a high near 70.
Friday Night
Clear, with a low around 34.
Saturday
Sunny, with a high near 72.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles SW Portola CA
 39.76°N 120.51°W (Elev. 5164 ft)
4:30 am PDT Oct 11, 2026
4am PDT Oct 11, 2026-6pm PDT Oct 17, 2026
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database