Severe Weather in the Plains; Heavy Rainfall in the Ohio and Tennessee Valleys; Heat Wave in the Central U.S.

Numerous severe storms with a potential for severe wind gusts, tornadoes (some potentially strong), and very large hail are expected in parts of the central and northern Plains. Heavy rainfall may bring a flooding threat to parts of the northern Plains and from the Ohio Valley to the Southeast. Fire weather concerns persist in the Four Corners Region. Hot and humid expected in the central U.S.. Read More >

Current conditions at

SJSU - Mount Diablo Summit Museum Rooftop (SJS02)

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

NA

N/A

Humidity 28%
Wind Speed NW 9 MPH
Barometer NA
Dewpoint N/A
Visibility NA
Last update 17 May 05:05 PM PDT
Extended Forecast for

4 Miles NNE San Ramon CA

Red Flag Warning June 10, 11:00pm until June 11, 09:00am
Click here for hazard details and duration
Red Flag Warning
  • Today

    Today: Sunny, with a high near 78. West wind 7 to 9 mph, with gusts as high as 18 mph.

    High: 78 °F

    Sunny

  • Tonight

    Tonight: Clear, with a low around 52. West wind 5 to 7 mph becoming calm  in the evening.

    Low: 52 °F

    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 92. Calm wind becoming north northwest 5 to 7 mph in the afternoon. Winds could gust as high as 21 mph.

    High: 92 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Clear, with a low around 61. West northwest wind 5 to 7 mph becoming calm  in the evening. Winds could gust as high as 18 mph.

    Low: 61 °F

    Clear

  • Thursday

    Thursday: Sunny and hot, with a high near 98. Calm wind becoming north 5 to 7 mph in the afternoon. Winds could gust as high as 22 mph.

    High: 98 °F

    Hot

  • Thursday Night

    Thursday Night: Clear, with a low around 59.

    Low: 59 °F

    Clear

  • Friday

    Friday: Sunny, with a high near 93.

    High: 93 °F

    Sunny

  • Friday Night

    Friday Night: Clear, with a low around 57.

    Low: 57 °F

    Clear

  • Saturday

    Saturday: Sunny, with a high near 91.

    High: 91 °F

    Sunny

Detailed Forecast

Today
Sunny, with a high near 78. West wind 7 to 9 mph, with gusts as high as 18 mph.
Tonight
Clear, with a low around 52. West wind 5 to 7 mph becoming calm in the evening.
Wednesday
Sunny, with a high near 92. Calm wind becoming north northwest 5 to 7 mph in the afternoon. Winds could gust as high as 21 mph.
Wednesday Night
Clear, with a low around 61. West northwest wind 5 to 7 mph becoming calm in the evening. Winds could gust as high as 18 mph.
Thursday
Sunny and hot, with a high near 98. Calm wind becoming north 5 to 7 mph in the afternoon. Winds could gust as high as 22 mph.
Thursday Night
Clear, with a low around 59.
Friday
Sunny, with a high near 93.
Friday Night
Clear, with a low around 57.
Saturday
Sunny, with a high near 91.
Saturday Night
Clear, with a low around 57.
Sunday
Sunny, with a high near 88.
Sunday Night
Clear, with a low around 55.
Monday
Sunny, with a high near 85.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles NNE San Ramon CA
 37.81°N 121.9°W (Elev. 1086 ft)
9:42 am PDT Jun 9, 2026
10am PDT Jun 9, 2026-6pm PDT Jun 15, 2026
 
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