Prolonged Atmospheric River in the Northwest; Snow in the North-Central US

A prolonged atmospheric river will bring heavy rainfall which may lead to widespread urban and river flooding, heavy mountain snow, along with gusty winds to the Pacific Northwest into the northern Rockies through much of the week. A clipper will bring a period of snow across the upper Midwest and the Great Lakes into Tuesday, before a stronger system bring more wintry impacts. Read More >

Current conditions at

LAS TRAMPAS (LTRC1)

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

NA

54°F

12°C

Humidity 52%
Wind Speed E 14 MPH
Barometer NA
Dewpoint 37°F (3°C)
Visibility NA
Last update 08 Dec 06:28 PM PST
Extended Forecast for

5 Miles WSW Danville CA

  • Tonight

    Tonight: Patchy fog after 5am.  Otherwise, mostly clear, with a low around 43. Calm wind.

    Low: 43 °F

    Mostly Clear
    then Patchy
    Fog

  • Tuesday

    Tuesday: Patchy fog before 9am.  Otherwise, sunny, with a high near 61. Calm wind becoming north around 5 mph in the afternoon.

    High: 61 °F

    Patchy Fog
    then Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 44. Calm wind.

    Low: 44 °F

    Mostly Clear

  • Wednesday

    Wednesday: Patchy fog before 8am.  Otherwise, sunny, with a high near 65. Calm wind becoming northeast around 5 mph in the morning.

    High: 65 °F

    Patchy Fog
    then Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 45. Calm wind.

    Low: 45 °F

    Mostly Clear

  • Thursday

    Thursday: Patchy fog between 7am and 8am.  Otherwise, sunny, with a high near 63.

    High: 63 °F

    Patchy Fog
    then Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 44.

    Low: 44 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 63.

    High: 63 °F

    Sunny

  • Friday Night

    Friday Night: Patchy fog after 5am.  Otherwise, mostly clear, with a low around 43.

    Low: 43 °F

    Mostly Clear
    then Patchy
    Fog

Detailed Forecast

Tonight
Patchy fog after 5am. Otherwise, mostly clear, with a low around 43. Calm wind.
Tuesday
Patchy fog before 9am. Otherwise, sunny, with a high near 61. Calm wind becoming north around 5 mph in the afternoon.
Tuesday Night
Mostly clear, with a low around 44. Calm wind.
Wednesday
Patchy fog before 8am. Otherwise, sunny, with a high near 65. Calm wind becoming northeast around 5 mph in the morning.
Wednesday Night
Mostly clear, with a low around 45. Calm wind.
Thursday
Patchy fog between 7am and 8am. Otherwise, sunny, with a high near 63.
Thursday Night
Mostly clear, with a low around 44.
Friday
Sunny, with a high near 63.
Friday Night
Patchy fog after 5am. Otherwise, mostly clear, with a low around 43.
Saturday
Patchy fog before 7am. Otherwise, sunny, with a high near 62.
Saturday Night
Patchy fog. Otherwise, partly cloudy, with a low around 44.
Sunday
Patchy fog. Otherwise, partly sunny, with a high near 61.
Sunday Night
Mostly cloudy, with a low around 47.
Monday
A slight chance of rain. Patchy fog. Otherwise, partly sunny, with a high near 62.
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles WSW Danville CA
 37.78°N 122.07°W (Elev. 994 ft)
12:26 pm PST Dec 8, 2025
7pm PST Dec 8, 2025-6pm PST Dec 15, 2025
 
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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