Prolonged Atmospheric River in the Pacific Northwest; Snow and High Winds in the North-Central U.S.

A prolonged atmospheric river will continue impacting the Pacific Northwest with heavy rainfall which has lead to areas of urban and river flooding along with gusty winds into Thursday. A clipper will bring heavy snow, some mixed wintry precipitation, and gusty to high winds across the northern Plains, Upper Midwest, and the Great Lakes into Thursday morning. Read More >

Current conditions at

LAS TRAMPAS (LTRC1)

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

NA

55°F

13°C

Humidity 58%
Wind Speed E 13 MPH
Barometer NA
Dewpoint 40°F (4°C)
Visibility NA
Last update 09 Dec 12:28 PM PST
Extended Forecast for

3 Miles ESE Walnut Creek CA

  • This Afternoon

    This Afternoon: Sunny, with a steady temperature around 50. North wind 3 to 5 mph.

    High: 50 °F

    Sunny

  • Tonight

    Tonight: Patchy dense fog after 1am.  Otherwise, mostly clear, with a low around 41. Calm wind.

    Low: 41 °F

    Mostly Clear
    then Patchy
    Dense Fog

  • Wednesday

    Wednesday: Patchy dense fog before 9am.  Otherwise, sunny, with a high near 63. North northeast wind 3 to 5 mph.

    High: 63 °F

    Patchy Dense
    Fog then
    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 42. Calm wind.

    Low: 42 °F

    Mostly Clear

  • Thursday

    Thursday: Patchy fog before 8am.  Otherwise, sunny, with a high near 64. Calm wind becoming northeast around 5 mph in the morning.

    High: 64 °F

    Patchy Fog
    then Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 40.

    Low: 40 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 61.

    High: 61 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Patchy fog after 5am.  Otherwise, mostly clear, with a low around 40.

    Low: 40 °F

    Mostly Clear
    then Patchy
    Fog

  • Saturday

    Saturday: Patchy fog before 9am.  Otherwise, mostly sunny, with a high near 60.

    High: 60 °F

    Patchy Fog
    then Mostly
    Sunny

Detailed Forecast

This Afternoon
Sunny, with a steady temperature around 50. North wind 3 to 5 mph.
Tonight
Patchy dense fog after 1am. Otherwise, mostly clear, with a low around 41. Calm wind.
Wednesday
Patchy dense fog before 9am. Otherwise, sunny, with a high near 63. North northeast wind 3 to 5 mph.
Wednesday Night
Mostly clear, with a low around 42. Calm wind.
Thursday
Patchy fog before 8am. Otherwise, sunny, with a high near 64. Calm wind becoming northeast around 5 mph in the morning.
Thursday Night
Mostly clear, with a low around 40.
Friday
Mostly sunny, with a high near 61.
Friday Night
Patchy fog after 5am. Otherwise, mostly clear, with a low around 40.
Saturday
Patchy fog before 9am. Otherwise, mostly sunny, with a high near 60.
Saturday Night
Patchy fog after 11pm. Otherwise, partly cloudy, with a low around 42.
Sunday
Areas of fog. Otherwise, partly sunny, with a high near 60.
Sunday Night
Patchy fog. Otherwise, mostly cloudy, with a low around 43.
Monday
A slight chance of rain. Areas of fog. Otherwise, partly sunny, with a high near 61.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles ESE Walnut Creek CA
 37.88°N 122.01°W (Elev. 594 ft)
12:26 pm PST Dec 9, 2025
12pm PST Dec 9, 2025-6pm PST Dec 15, 2025
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

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