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

Frigid Airmass to Bring Significantly Colder Temperatures; Snow Continues Downwind of the Great Lakes

A frigid cold airmass will bring significantly colder weather across the eastern two thirds of the country early this week. Record low temperatures are expected in the Southeast by Tuesday morning. Moderate to heavy lake effect snow will continue downwind of the Great Lakes through Monday. Several inches of snow accumulation is expected, including in portions of the Chicago Metro Read More >

Current conditions at

LAS TRAMPAS (LTRC1)

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

NA

68°F

20°C

Humidity 39%
Wind Speed E 4 MPH
Barometer NA
Dewpoint 42°F (6°C)
Visibility NA
Last update 10 Nov 02:28 AM PST
Extended Forecast for

Walnut Creek CA

  • Overnight

    Overnight: Partly cloudy, with a low around 55. North wind around 7 mph.

    Low: 55 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 81. North northeast wind 5 to 7 mph.

    High: 81 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 56. Calm wind becoming north northwest around 6 mph in the evening.

    Low: 56 °F

    Partly Cloudy

  • Veterans Day

    Veterans Day: Mostly cloudy, with a high near 78. North wind around 6 mph becoming calm in the afternoon.

    High: 78 °F

    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 55. Southwest wind 6 to 8 mph.

    Low: 55 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Rain likely, mainly after 4pm. Mostly cloudy, with a high near 70. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    High: 70 °F

    Slight Chance
    Rain then
    Rain Likely

  • Wednesday Night

    Wednesday Night: Rain. Low around 53. Chance of precipitation is 100%.

    Low: 53 °F

    Rain

  • Thursday

    Thursday: Rain. Mostly cloudy, with a high near 62.

    High: 62 °F

    Rain

  • Thursday Night

    Thursday Night: A chance of rain. Mostly cloudy, with a low around 47.

    Low: 47 °F

    Chance Rain

Detailed Forecast

Overnight
Partly cloudy, with a low around 55. North wind around 7 mph.
Monday
Mostly sunny, with a high near 81. North northeast wind 5 to 7 mph.
Monday Night
Partly cloudy, with a low around 56. Calm wind becoming north northwest around 6 mph in the evening.
Veterans Day
Mostly cloudy, with a high near 78. North wind around 6 mph becoming calm in the afternoon.
Tuesday Night
Mostly cloudy, with a low around 55. Southwest wind 6 to 8 mph.
Wednesday
Rain likely, mainly after 4pm. Mostly cloudy, with a high near 70. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday Night
Rain. Low around 53. Chance of precipitation is 100%.
Thursday
Rain. Mostly cloudy, with a high near 62.
Thursday Night
A chance of rain. Mostly cloudy, with a low around 47.
Friday
A chance of rain, mainly before 4pm. Partly sunny, with a high near 59.
Friday Night
A slight chance of rain. Partly cloudy, with a low around 47.
Saturday
Mostly sunny, with a high near 64.
Saturday Night
A slight chance of rain. Partly cloudy, with a low around 48.
Sunday
A chance of rain. Partly sunny, with a high near 64.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Walnut Creek CA
 37.9°N 122.07°W (Elev. 203 ft)
Last Update:
1:27 am PST Nov 10, 2025
Forecast Valid:
2am PST Nov 10, 2025-6pm PST Nov 16, 2025
 
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Additional Resources

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Chance of Precipitation