Hawaii and Guam Concerns; Severe Weather for the Plains; Heavy Snow for Sierra-Nevada

Heavy rainfall capable of causing flash flooding will continue to impact Hawaii through Monday. Severe thunderstorms and heavy rain are possible in parts of Texas and the southern Plains and the Upper Great Lakes. Heavy mountain snow continues in California's Sierra Nevada and rain with gusty winds to lower elevations. Super Typhoon Sinlaku will impact the Marianas through midweek. Read More >

Current conditions at

POR31-Iron Horse (LIB09)

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

NA

31°F

-1°C

Humidity 97%
Wind Speed SW 0 MPH
Barometer NA
Dewpoint 30°F (-1°C)
Visibility NA
Last update 12 Apr 08:10 PM PDT
Extended Forecast for

2 Miles SSW Portola CA

Winter Weather Advisory April 12, 08:29pm until April 12, 11:00pm
Click here for hazard details and duration
...
  •  
    Winter Weather Advisory April 12, 08:29pm until April 12, 11:00pm

    NOW until 11:00pm Sun

    Winter Weather Advisory

  • Tonight

    Low: 22 °F

    Snow Showers
    Likely then
    Slight Chance
    Snow Showers

  • Monday

    Monday: Mostly sunny, with a high near 50. Calm wind becoming west around 5 mph in the afternoon.

    High: 50 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 24. West wind around 5 mph becoming calm  in the evening.

    Low: 24 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 53. Light west wind increasing to 5 to 10 mph in the afternoon.

    High: 53 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 28. Southwest wind 5 to 10 mph.

    Low: 28 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 52. Southwest wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 52 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Rain showers likely before 2am, then rain and snow showers likely.  Snow level 7000 feet lowering to 5900 feet after midnight . Mostly cloudy, with a low around 28. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

    Low: 28 °F

    Showers
    Likely then
    Rain/Snow
    Likely

  • Thursday

    Thursday: A chance of snow showers before 11am.  Mostly cloudy, then gradually becoming sunny, with a high near 47.

    High: 47 °F

    Chance Snow
    Showers then
    Sunny

Detailed Forecast

Tonight
Snow showers likely, mainly before 11pm. Mostly cloudy, with a low around 22. West wind around 5 mph becoming calm in the evening. Chance of precipitation is 60%. Total nighttime snow accumulation of less than a half inch possible.
Monday
Mostly sunny, with a high near 50. Calm wind becoming west around 5 mph in the afternoon.
Monday Night
Partly cloudy, with a low around 24. West wind around 5 mph becoming calm in the evening.
Tuesday
Mostly sunny, with a high near 53. Light west wind increasing to 5 to 10 mph in the afternoon.
Tuesday Night
Partly cloudy, with a low around 28. Southwest wind 5 to 10 mph.
Wednesday
Partly sunny, with a high near 52. Southwest wind 5 to 10 mph, with gusts as high as 20 mph.
Wednesday Night
Rain showers likely before 2am, then rain and snow showers likely. Snow level 7000 feet lowering to 5900 feet after midnight . Mostly cloudy, with a low around 28. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.
Thursday
A chance of snow showers before 11am. Mostly cloudy, then gradually becoming sunny, with a high near 47.
Thursday Night
Clear, with a low around 21.
Friday
Sunny, with a high near 57.
Friday Night
Mostly clear, with a low around 26.
Saturday
Mostly sunny, with a high near 63.
Saturday Night
Partly cloudy, with a low around 31.
Sunday
A chance of showers. Snow level 6200 feet rising to 7200 feet in the afternoon. Mostly sunny, with a high near 62.
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles SSW Portola CA
 39.79°N 120.49°W (Elev. 4987 ft)
4:30 pm PDT Apr 12, 2026
8pm PDT Apr 12, 2026-6pm PDT Apr 19, 2026
 
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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