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

STONYFORD (SYWC1)

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

NA

57°F

14°C

Humidity 61%
Wind Speed E 3 MPH
Barometer NA
Dewpoint 44°F (7°C)
Visibility NA
Last update 14 Nov 12:26 PM PST
Extended Forecast for

20 Miles N Clearlake CA

  • This Afternoon

    This Afternoon: Mostly cloudy, with a high near 50. South wind around 8 mph.

    High: 50 °F

    Mostly Cloudy

  • Tonight

    Tonight: A 30 percent chance of rain after 3am. Cloudy, with a low around 46. South southwest wind 7 to 13 mph, with gusts as high as 24 mph. New precipitation amounts of less than a tenth of an inch possible.

    Low: 46 °F

    Cloudy then
    Chance Rain

  • Sunday

    Sunday: Rain, mainly before 3pm. Patchy fog before 9am. Temperature falling to around 45 by 5pm. South wind 5 to 14 mph, with gusts as high as 24 mph. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.

    High: 51 °F⇓

    Rain and
    Patchy Fog

  • Sunday Night

    Sunday Night: Rain likely before 7pm. Cloudy, then gradually becoming partly cloudy, with a low around 41. West wind 7 to 10 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 41 °F

    Rain Likely
    then Partly
    Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 49. West southwest wind 3 to 7 mph.

    High: 49 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 37.

    Low: 37 °F

    Mostly Clear

  • Tuesday

    Tuesday: A 30 percent chance of rain after 4pm. Sunny, with a high near 48.

    High: 48 °F

    Sunny then
    Chance Rain

  • Tuesday Night

    Tuesday Night: Rain, mainly after 10pm. Mostly cloudy, with a low around 41.

    Low: 41 °F

    Rain

  • Wednesday

    Wednesday: Rain. Cloudy, with a high near 45.

    High: 45 °F

    Rain

Detailed Forecast

This Afternoon
Mostly cloudy, with a high near 50. South wind around 8 mph.
Tonight
A 30 percent chance of rain after 3am. Cloudy, with a low around 46. South southwest wind 7 to 13 mph, with gusts as high as 24 mph. New precipitation amounts of less than a tenth of an inch possible.
Sunday
Rain, mainly before 3pm. Patchy fog before 9am. Temperature falling to around 45 by 5pm. South wind 5 to 14 mph, with gusts as high as 24 mph. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.
Sunday Night
Rain likely before 7pm. Cloudy, then gradually becoming partly cloudy, with a low around 41. West wind 7 to 10 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Monday
Mostly sunny, with a high near 49. West southwest wind 3 to 7 mph.
Monday Night
Mostly clear, with a low around 37.
Tuesday
A 30 percent chance of rain after 4pm. Sunny, with a high near 48.
Tuesday Night
Rain, mainly after 10pm. Mostly cloudy, with a low around 41.
Wednesday
Rain. Cloudy, with a high near 45.
Wednesday Night
Rain. Mostly cloudy, with a low around 39.
Thursday
Rain likely. Mostly cloudy, with a high near 43.
Thursday Night
A chance of rain. Mostly cloudy, with a low around 38.
Friday
Mostly sunny, with a high near 48.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
20 Miles N Clearlake CA
 39.25°N 122.65°W (Elev. 2851 ft)
Last Update:
1:00 pm PST Nov 14, 2026
Forecast Valid:
1pm PST Nov 14, 2026-6pm PST Nov 20, 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