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

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

SJSU - Mount Diablo Summit Museum Rooftop (SJS02)

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

NA

38°F

3°C

Humidity 100%
Wind Speed WSW 8 MPH
Barometer NA
Dewpoint 38°F (3°C)
Visibility NA
Wind Chill32°F (0°C)
Last update 13 Apr 01:10 AM PDT
Extended Forecast for

7 Miles SSW Brentwood CA

  • Overnight

    Overnight: A 20 percent chance of rain after 4am. Partly cloudy, with a low around 46. Light southwest wind.

    Low: 46 °F

    Slight Chance
    Rain

  • Monday

    Monday: Sunny, with a high near 62. Light and variable wind becoming northwest 5 to 9 mph in the morning. Winds could gust as high as 18 mph.

    High: 62 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 49. Southwest wind around 9 mph.

    Low: 49 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 63. Southwest wind 6 to 9 mph, with gusts as high as 18 mph.

    High: 63 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 49. Southwest wind 8 to 10 mph, with gusts as high as 21 mph.

    Low: 49 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 65.

    High: 65 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 51.

    Low: 51 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 64.

    High: 64 °F

    Sunny

  • Thursday Night

    Thursday Night: Clear, with a low around 49.

    Low: 49 °F

    Clear

Detailed Forecast

Overnight
A 20 percent chance of rain after 4am. Partly cloudy, with a low around 46. Light southwest wind.
Monday
Sunny, with a high near 62. Light and variable wind becoming northwest 5 to 9 mph in the morning. Winds could gust as high as 18 mph.
Monday Night
Mostly clear, with a low around 49. Southwest wind around 9 mph.
Tuesday
Sunny, with a high near 63. Southwest wind 6 to 9 mph, with gusts as high as 18 mph.
Tuesday Night
Mostly clear, with a low around 49. Southwest wind 8 to 10 mph, with gusts as high as 21 mph.
Wednesday
Mostly sunny, with a high near 65.
Wednesday Night
Partly cloudy, with a low around 51.
Thursday
Sunny, with a high near 64.
Thursday Night
Clear, with a low around 49.
Friday
Sunny, with a high near 70.
Friday Night
Mostly clear, with a low around 50.
Saturday
Mostly sunny, with a high near 74.
Saturday Night
Partly cloudy, with a low around 53.
Sunday
A slight chance of rain. Mostly sunny, with a high near 69.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
7 Miles SSW Brentwood CA
 37.83°N 121.74°W (Elev. 932 ft)
Last Update:
1:26 am PDT Apr 13, 2026
Forecast Valid:
3am PDT Apr 13, 2026-6pm PDT Apr 19, 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