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

Prolonged Atmospheric River Will Impact the Northwest Early this Week

A weather system in the Pacific Northwest will produce rain throughout the day, before a potent atmospheric river produces a prolonged round of heavy rainfall, widespread urban and river flooding, and high elevation snow to the region Monday through Wednesday. Showers and thunderstorms may produce isolated damaging winds, a brief tornado, and locally heavy rainfall across parts of Florida today. Read More >

Current conditions at

LAS TRAMPAS (LTRC1)

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

NA

48°F

9°C

Humidity 80%
Wind Speed ENE 10 MPH
Barometer NA
Dewpoint 42°F (6°C)
Visibility NA
Wind Chill44°F (7°C)
Last update 07 Dec 11:28 AM PST
Extended Forecast for

3 Miles NW Danville CA

  • This Afternoon

    This Afternoon: Partly sunny, with a high near 59. North northwest wind around 6 mph.

    High: 59 °F

    Partly Sunny

  • Tonight

    Tonight: Patchy fog between midnight and 1am. Otherwise, partly cloudy, with a low around 40. Northwest wind 5 to 7 mph becoming calm.

    Low: 40 °F

    Partly Cloudy
    then Patchy
    Fog

  • Monday

    Monday: Mostly sunny, with a high near 63. North wind 3 to 6 mph.

    High: 63 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 41. West wind 5 to 7 mph.

    Low: 41 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 62. North wind 5 to 9 mph.

    High: 62 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Patchy fog after 11pm. Otherwise, partly cloudy, with a low around 44.

    Low: 44 °F

    Patchy Fog

  • Wednesday

    Wednesday: Mostly sunny, with a high near 66.

    High: 66 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Patchy fog after 1am. Otherwise, mostly clear, with a low around 44.

    Low: 44 °F

    Mostly Clear
    then Patchy
    Fog

  • Thursday

    Thursday: Areas of fog before 9am. Otherwise, mostly sunny, with a high near 66.

    High: 66 °F

    Areas Fog
    then Sunny

Detailed Forecast

This Afternoon
Partly sunny, with a high near 59. North northwest wind around 6 mph.
Tonight
Patchy fog between midnight and 1am. Otherwise, partly cloudy, with a low around 40. Northwest wind 5 to 7 mph becoming calm.
Monday
Mostly sunny, with a high near 63. North wind 3 to 6 mph.
Monday Night
Mostly clear, with a low around 41. West wind 5 to 7 mph.
Tuesday
Mostly sunny, with a high near 62. North wind 5 to 9 mph.
Tuesday Night
Patchy fog after 11pm. Otherwise, partly cloudy, with a low around 44.
Wednesday
Mostly sunny, with a high near 66.
Wednesday Night
Patchy fog after 1am. Otherwise, mostly clear, with a low around 44.
Thursday
Areas of fog before 9am. Otherwise, mostly sunny, with a high near 66.
Thursday Night
Patchy fog after 3am. Otherwise, mostly clear, with a low around 43.
Friday
Patchy fog. Otherwise, mostly sunny, with a high near 65.
Friday Night
Patchy fog. Otherwise, mostly clear, with a low around 42.
Saturday
Patchy fog. Otherwise, mostly sunny, with a high near 64.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles NW Danville CA
 37.86°N 122.03°W (Elev. 397 ft)
Last Update:
2:33 am PST Dec 7, 2025
Forecast Valid:
12pm PST Dec 7, 2025-6pm PST Dec 13, 2025
 
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Additional Resources

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Chance of Precipitation