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

Heavy Snow in the Northwest; Wintry Mix from the Great Lakes to Northeast

Two cold fronts will pass through the Northwest U.S. this week with the main impact being heavy mountain snow across the Cascades, and northern Rockies. A quick moving storm system will bring mixed precipitation including some freezing rain to the Upper Midwest and Great Lakes today then the Northeast U.S. tonight into Wednesday. Read More >

Current conditions at

LAS TRAMPAS (LTRC1)

Lat: 37.83389°NLon: 122.06694°WElev: 1760.0ft.

NA

48°F

9°C

Humidity 100%
Wind Speed NE 10 MPH
Barometer NA
Dewpoint 48°F (9°C)
Visibility NA
Wind Chill44°F (7°C)
Last update 06 Jan 11:28 AM PST
Extended Forecast for

2 Miles NW San Ramon CA

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 58. Light north northeast wind.

    High: 58 °F

    Mostly Sunny

  • Tonight

    Tonight: Patchy fog. Otherwise, increasing clouds, with a low around 46. Calm wind.

    Low: 46 °F

    Patchy Fog

  • Wednesday

    Wednesday: Mostly cloudy, then gradually becoming sunny, with a high near 56. West northwest wind 3 to 7 mph.

    High: 56 °F

    Decreasing
    Clouds

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 40. West wind around 7 mph.

    Low: 40 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 53. North northwest wind 5 to 7 mph.

    High: 53 °F

    Sunny

  • Thursday Night

    Thursday Night: Patchy frost after 3am. Otherwise, partly cloudy, with a low around 35.

    Low: 35 °F

    Mostly Clear
    then Patchy
    Frost

  • Friday

    Friday: Areas of frost before 8am. Otherwise, sunny, with a high near 53.

    High: 53 °F

    Areas Frost
    then Sunny

  • Friday Night

    Friday Night: Patchy frost after 5am. Otherwise, partly cloudy, with a low around 36.

    Low: 36 °F

    Mostly Clear
    then Patchy
    Frost

  • Saturday

    Saturday: Patchy frost before 8am. Otherwise, mostly sunny, with a high near 55.

    High: 55 °F

    Patchy Frost
    then Mostly
    Sunny

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 58. Light north northeast wind.
Tonight
Patchy fog. Otherwise, increasing clouds, with a low around 46. Calm wind.
Wednesday
Mostly cloudy, then gradually becoming sunny, with a high near 56. West northwest wind 3 to 7 mph.
Wednesday Night
Mostly clear, with a low around 40. West wind around 7 mph.
Thursday
Sunny, with a high near 53. North northwest wind 5 to 7 mph.
Thursday Night
Patchy frost after 3am. Otherwise, partly cloudy, with a low around 35.
Friday
Areas of frost before 8am. Otherwise, sunny, with a high near 53.
Friday Night
Patchy frost after 5am. Otherwise, partly cloudy, with a low around 36.
Saturday
Patchy frost before 8am. Otherwise, mostly sunny, with a high near 55.
Saturday Night
Mostly cloudy, with a low around 38.
Sunday
Partly sunny, with a high near 57.
Sunday Night
Partly cloudy, with a low around 39.
Monday
Sunny, with a high near 58.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles NW San Ramon CA
 37.77°N 121.98°W (Elev. 518 ft)
Last Update:
3:19 am PST Jan 6, 2026
Forecast Valid:
12pm PST Jan 6, 2026-6pm PST Jan 12, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation