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

Moke Impacts Hawaii; Severe Thunderstorms and Heavy Rainfall from the Great Basin to the Plains

Heavy rain from Tropical Storm Moke will begin to impact the Big Island today, risking life-threatening flooding and mudslides in windward and southeast areas. Severe thunderstorms are expected across the northern Rockies/Plains and northern Great Basin. Repeated storms and heavy rainfall may cause flash flooding from the Plains into the Lower MS Valley. Dangerous heat persists across the South. Read More >

Current conditions at

STONYFORD (SYWC1)

Lat: 39.35523°NLon: 122.65831°WElev: 1540.0ft.

NA

93°F

34°C

Humidity 15%
Wind Speed S 4 MPH
Barometer NA
Dewpoint 39°F (4°C)
Visibility NA
Heat Index89°F (32°C)
Last update 23 Aug 12:26 PM PDT
Extended Forecast for

19 Miles E Potter Valley CA

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 82. South southwest wind around 6 mph.

    High: 82 °F

    Mostly Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 65. West southwest wind around 5 mph becoming calm in the evening.

    Low: 65 °F

    Increasing
    Clouds

  • Monday

    Monday: Partly sunny, then gradually becoming sunny, with a high near 81. Calm wind becoming south southwest 5 to 9 mph in the morning.

    High: 81 °F

    Becoming
    Sunny

  • Monday Night

    Monday Night: Increasing clouds, with a low around 63. West northwest wind 3 to 8 mph.

    Low: 63 °F

    Increasing
    Clouds

  • Tuesday

    Tuesday: Mostly sunny, with a high near 80. Light and variable wind becoming south southwest 5 to 7 mph in the afternoon.

    High: 80 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 63.

    Low: 63 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 81.

    High: 81 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 63.

    Low: 63 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 81.

    High: 81 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 82. South southwest wind around 6 mph.
Tonight
Increasing clouds, with a low around 65. West southwest wind around 5 mph becoming calm in the evening.
Monday
Partly sunny, then gradually becoming sunny, with a high near 81. Calm wind becoming south southwest 5 to 9 mph in the morning.
Monday Night
Increasing clouds, with a low around 63. West northwest wind 3 to 8 mph.
Tuesday
Mostly sunny, with a high near 80. Light and variable wind becoming south southwest 5 to 7 mph in the afternoon.
Tuesday Night
Partly cloudy, with a low around 63.
Wednesday
Mostly sunny, with a high near 81.
Wednesday Night
Partly cloudy, with a low around 63.
Thursday
Mostly sunny, with a high near 81.
Thursday Night
Mostly clear, with a low around 63.
Friday
Sunny, with a high near 80.
Friday Night
Mostly clear, with a low around 61.
Saturday
Sunny, with a high near 79.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
19 Miles E Potter Valley CA
 39.32°N 122.76°W (Elev. 3999 ft)
Last Update:
11:31 am PDT Aug 23, 2026
Forecast Valid:
1pm PDT Aug 23, 2026-6pm PDT Aug 29, 2026
 
Forecast Discussion
 
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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation