Tracking a Winter Storm; Unusual Early-Season Heat Wave in the Southwest

A major winter storm will organize across the Northern Plains today and then rapidly strengthen as it moves into the Great Lakes on Sunday. Heavy snow and blowing snow are likely to persist over the Great Lakes into Monday night. Dry and gusty winds will produce a critical fire risk across the central/southern Plains. An early heatwave will begin to intensify over the western U.S. into next week. Read More >

Current conditions at

SJSU - Mount Diablo Summit Museum Rooftop (SJS02)

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

NA

57°F

14°C

Humidity 50%
Wind Speed NNW 21 MPH
Barometer NA
Dewpoint 38°F (3°C)
Visibility NA
Last update 15 Mar 03:55 AM PDT
Extended Forecast for

6 Miles NE San Ramon CA

Heat Advisory March 16, 10:00am until March 20, 08:00pm
Click here for hazard details and duration
Heat Advisory
  • Today

    Today: Sunny, with a high near 80. North wind around 10 mph, with gusts as high as 21 mph.

    High: 80 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 59. North wind 6 to 9 mph.

    Low: 59 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 83. North wind 6 to 8 mph.

    High: 83 °F

    Sunny

  • Monday Night

    Monday Night: Clear, with a low around 61. North northwest wind around 7 mph becoming south southwest after midnight.

    Low: 61 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 86. South southeast wind 5 to 7 mph becoming north northeast in the afternoon.

    High: 86 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Clear, with a low around 63.

    Low: 63 °F

    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 88.

    High: 88 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Clear, with a low around 63.

    Low: 63 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 88.

    High: 88 °F

    Sunny

Detailed Forecast

Today
Sunny, with a high near 80. North wind around 10 mph, with gusts as high as 21 mph.
Tonight
Mostly clear, with a low around 59. North wind 6 to 9 mph.
Monday
Sunny, with a high near 83. North wind 6 to 8 mph.
Monday Night
Clear, with a low around 61. North northwest wind around 7 mph becoming south southwest after midnight.
Tuesday
Sunny, with a high near 86. South southeast wind 5 to 7 mph becoming north northeast in the afternoon.
Tuesday Night
Clear, with a low around 63.
Wednesday
Sunny, with a high near 88.
Wednesday Night
Clear, with a low around 63.
Thursday
Sunny, with a high near 88.
Thursday Night
Clear, with a low around 65.
Friday
Sunny, with a high near 90.
Friday Night
Mostly clear, with a low around 65.
Saturday
Sunny, with a high near 86.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
6 Miles NE San Ramon CA
 37.83°N 121.88°W (Elev. 1913 ft)
2:40 am PDT Mar 15, 2026
4am PDT Mar 15, 2026-6pm PDT Mar 21, 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