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

Back-to-Back Pacific Storms to Impact the West Coast; Heavy Snow in the Central Appalachians

Back-to-back powerful Pacific storm systems to impact the Pacific Northwest and northern California through the end of this week with heavy rain, flooding, strong winds, and higher elevation mountain snow. A strong, long-duration atmospheric river will accompany the Pacific storms, bringing excessive rainfall and flash flooding to southwest Oregon and northwest California through the week. Read More >

Current conditions at

Mt. Diablo (SJS02)

Lat: 37.881698°NLon: 121.914155°WElev: 3849.0ft.

NA

42°F

6°C

Humidity 86%
Wind Speed S 22 MPH
Barometer NA
Dewpoint 38°F (3°C)
Visibility NA
Wind Chill33°F (1°C)
Last update 20 Nov 11:10 PM PST
Extended Forecast for

4 Miles S Clayton CA

  • Tonight

    Tonight: Rain. Low around 44. Breezy, with a south wind 23 to 28 mph, with gusts as high as 48 mph. Chance of precipitation is 90%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 44 °F

    Rain and
    Breezy

  • Thursday

    Thursday: Rain. High near 54. Breezy, with a south wind 22 to 25 mph, with gusts as high as 45 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.

    High: 54 °F

    Rain and
    Breezy

  • Thursday Night

    Thursday Night: Rain likely, mainly before 10pm. Mostly cloudy, with a low around 49. Breezy, with a south wind 21 to 23 mph, with gusts as high as 39 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 49 °F

    Rain Likely
    and Breezy

  • Friday

    Friday: Rain. High near 55. Breezy, with a south wind 18 to 23 mph, with gusts as high as 39 mph. Chance of precipitation is 90%. New precipitation amounts between three quarters and one inch possible.

    High: 55 °F

    Rain and
    Breezy

  • Friday Night

    Friday Night: Rain. Low around 47. South southwest wind 9 to 18 mph, with gusts as high as 34 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 47 °F

    Rain

  • Saturday

    Saturday: Rain likely, mainly before 10am. Patchy fog after 1pm. Otherwise, mostly cloudy, with a high near 53. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    High: 53 °F

    Rain Likely
    and Patchy
    Fog

  • Saturday Night

    Saturday Night: Rain likely, mainly after 10pm. Mostly cloudy, with a low around 42. Chance of precipitation is 60%.

    Low: 42 °F

    Rain Likely

  • Sunday

    Sunday: Rain likely. Patchy fog after 4pm. Otherwise, mostly cloudy, with a high near 48.

    High: 48 °F

    Rain Likely
    and Patchy
    Fog

  • Sunday Night

    Sunday Night: Rain likely, mainly before 4am. Mostly cloudy, with a low around 44.

    Low: 44 °F

    Rain Likely

Detailed Forecast

Tonight
Rain. Low around 44. Breezy, with a south wind 23 to 28 mph, with gusts as high as 48 mph. Chance of precipitation is 90%. New precipitation amounts of less than a tenth of an inch possible.
Thursday
Rain. High near 54. Breezy, with a south wind 22 to 25 mph, with gusts as high as 45 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
Thursday Night
Rain likely, mainly before 10pm. Mostly cloudy, with a low around 49. Breezy, with a south wind 21 to 23 mph, with gusts as high as 39 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Friday
Rain. High near 55. Breezy, with a south wind 18 to 23 mph, with gusts as high as 39 mph. Chance of precipitation is 90%. New precipitation amounts between three quarters and one inch possible.
Friday Night
Rain. Low around 47. South southwest wind 9 to 18 mph, with gusts as high as 34 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Saturday
Rain likely, mainly before 10am. Patchy fog after 1pm. Otherwise, mostly cloudy, with a high near 53. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Saturday Night
Rain likely, mainly after 10pm. Mostly cloudy, with a low around 42. Chance of precipitation is 60%.
Sunday
Rain likely. Patchy fog after 4pm. Otherwise, mostly cloudy, with a high near 48.
Sunday Night
Rain likely, mainly before 4am. Mostly cloudy, with a low around 44.
Monday
Rain likely, mainly after 10am. Patchy fog between 4pm and 5pm. Otherwise, mostly cloudy, with a high near 50.
Monday Night
Rain likely. Mostly cloudy, with a low around 43.
Tuesday
Rain likely. Patchy fog. Otherwise, mostly cloudy, with a high near 50.
Tuesday Night
A chance of rain. Mostly cloudy, with a low around 45.
Wednesday
A chance of rain. Patchy fog. Otherwise, partly sunny, with a high near 50.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles S Clayton CA
 37.87°N 121.92°W (Elev. 2818 ft)
Last Update:
2:26 pm PST Nov 20, 2024
Forecast Valid:
10pm PST Nov 20, 2024-6pm PST Nov 27, 2024
 
Forecast Discussion
 
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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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation