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

Fire Weather Concerns and Severe Thunderstorms through the Weekend

Dry and windy conditions, and some dry thunderstorms and lightning, may support hazardous fire activity in the northern Plains, high southern Plains and the Southwest this weekend. An active severe weather pattern is forecast for portions of the central and southern High Plains into the Upper Midwest through early the part of next week. Damaging winds, large hail, and tornadoes are possible. Read More >

Current conditions at

SJSU - Mount Diablo Summit Museum Rooftop (SJS02)

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

NA

59°F

15°C

Humidity 34%
Wind Speed NNW 8 MPH
Barometer NA
Dewpoint 31°F (-1°C)
Visibility NA
Last update 15 May 11:05 AM PDT
Extended Forecast for

5 Miles NNE San Ramon CA

  • This Afternoon

    This Afternoon: Sunny, with a high near 81. West wind around 10 mph, with gusts as high as 21 mph.

    High: 81 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 48. West northwest wind around 10 mph, with gusts as high as 21 mph.

    Low: 48 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 76. West northwest wind around 11 mph, with gusts as high as 23 mph.

    High: 76 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 46. West southwest wind 7 to 11 mph, with gusts as high as 23 mph.

    Low: 46 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 77. West wind 7 to 12 mph becoming northwest 13 to 18 mph in the afternoon. Winds could gust as high as 34 mph.

    High: 77 °F

    Sunny

  • Sunday Night

    Sunday Night: Clear, with a low around 53.

    Low: 53 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 84.

    High: 84 °F

    Sunny

  • Monday Night

    Monday Night: Clear, with a low around 52.

    Low: 52 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 88.

    High: 88 °F

    Sunny

Detailed Forecast

This Afternoon
Sunny, with a high near 81. West wind around 10 mph, with gusts as high as 21 mph.
Tonight
Mostly clear, with a low around 48. West northwest wind around 10 mph, with gusts as high as 21 mph.
Saturday
Sunny, with a high near 76. West northwest wind around 11 mph, with gusts as high as 23 mph.
Saturday Night
Mostly clear, with a low around 46. West southwest wind 7 to 11 mph, with gusts as high as 23 mph.
Sunday
Sunny, with a high near 77. West wind 7 to 12 mph becoming northwest 13 to 18 mph in the afternoon. Winds could gust as high as 34 mph.
Sunday Night
Clear, with a low around 53.
Monday
Sunny, with a high near 84.
Monday Night
Clear, with a low around 52.
Tuesday
Sunny, with a high near 88.
Tuesday Night
Clear, with a low around 54.
Wednesday
Sunny, with a high near 90.
Wednesday Night
Clear, with a low around 54.
Thursday
Sunny, with a high near 86.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
5 Miles NNE San Ramon CA
 37.83°N 121.91°W (Elev. 1220 ft)
Last Update:
1:26 pm PDT May 15, 2026
Forecast Valid:
1pm PDT May 15, 2026-6pm PDT May 21, 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