Pacific Storm System Across the West; Fire Weather Concerns in the Southeast

A Pacific storm system will bring strong winds and low elevation rain to much of the West Coast, and heavy high elevation mountain snow to the Sierra-Nevada through Wednesday. Fire weather concerns will continue into Tuesday across the Mid-South and Southeast as gusty winds and dry conditions persist. Read More >

Current conditions at

SJSU - Mount Diablo Summit Museum Rooftop (SJS02)

Lat: 37.881699°NLon: 121.914173°WElev: 3904.0ft.

NA

41°F

5°C

Humidity 99%
Wind Speed SSW 9 MPH
Barometer NA
Dewpoint 40°F (4°C)
Visibility NA
Wind Chill35°F (2°C)
Last update 21 Apr 05:35 AM PDT
Extended Forecast for

2 Miles SSE Clayton CA

  • Today

    Today: Showers and thunderstorms, mainly before 4pm, then rain likely and possibly a thunderstorm after 5pm.  High near 60. South wind 7 to 13 mph becoming west southwest in the afternoon. Winds could gust as high as 24 mph.  Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.

    High: 60 °F

    Showers

  • Tonight

    Tonight: A chance of rain before 11pm, then a chance of rain after 2am.  Mostly cloudy, with a low around 48. Southwest wind 8 to 11 mph, with gusts as high as 23 mph.  Chance of precipitation is 50%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 48 °F

    Chance Rain

  • Wednesday

    Wednesday: A 30 percent chance of rain, mainly before 11am.  Mostly sunny, with a high near 63. South southwest wind around 8 mph.  New precipitation amounts of less than a tenth of an inch possible.

    High: 63 °F

    Chance Rain

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 47. West wind 6 to 9 mph.

    Low: 47 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 69. West wind 5 to 7 mph becoming north northwest in the morning.

    High: 69 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 49.

    Low: 49 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 70.

    High: 70 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 52.

    Low: 52 °F

    Partly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 67.

    High: 67 °F

    Partly Sunny

Detailed Forecast

Today
Showers and thunderstorms, mainly before 4pm, then rain likely and possibly a thunderstorm after 5pm. High near 60. South wind 7 to 13 mph becoming west southwest in the afternoon. Winds could gust as high as 24 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.
Tonight
A chance of rain before 11pm, then a chance of rain after 2am. Mostly cloudy, with a low around 48. Southwest wind 8 to 11 mph, with gusts as high as 23 mph. Chance of precipitation is 50%. New precipitation amounts between a tenth and quarter of an inch possible.
Wednesday
A 30 percent chance of rain, mainly before 11am. Mostly sunny, with a high near 63. South southwest wind around 8 mph. New precipitation amounts of less than a tenth of an inch possible.
Wednesday Night
Mostly clear, with a low around 47. West wind 6 to 9 mph.
Thursday
Sunny, with a high near 69. West wind 5 to 7 mph becoming north northwest in the morning.
Thursday Night
Partly cloudy, with a low around 49.
Friday
Mostly sunny, with a high near 70.
Friday Night
Partly cloudy, with a low around 52.
Saturday
Partly sunny, with a high near 67.
Saturday Night
Partly cloudy, with a low around 52.
Sunday
Mostly sunny, with a high near 68.
Sunday Night
Mostly clear, with a low around 51.
Monday
Mostly sunny, with a high near 70.
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles SSE Clayton CA
 37.92°N 121.93°W (Elev. 600 ft)
12:31 am PDT Apr 21, 2026
6am PDT Apr 21, 2026-6pm PDT Apr 27, 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