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

Palo Alto Airport (KPAO)

Lat: 37.46667°NLon: 122.11667°WElev: 7.0ft.

haze

48°F

9°C

Humidity 93%
Wind Speed WNW 3 MPH
Barometer 30.29 in (1025.74 mb)
Dewpoint 46°F (8°C)
Visibility 7.00 mi
Last update 07 Dec 06:47 PM PST
Extended Forecast for

2 Miles SW Atherton CA

  • Tonight

    Tonight: Patchy fog after 2am. Otherwise, mostly clear, with a low around 43. Calm wind.

    Low: 43 °F

    Mostly Clear
    then Patchy
    Fog

  • Monday

    Monday: Areas of fog before 9am. Otherwise, sunny, with a high near 59. Calm wind becoming north around 6 mph in the afternoon.

    High: 59 °F

    Areas Fog
    then Sunny

  • Monday Night

    Monday Night: Patchy fog after midnight. Otherwise, mostly clear, with a low around 45. Calm wind.

    Low: 45 °F

    Mostly Clear
    then Patchy
    Fog

  • Tuesday

    Tuesday: Mostly sunny, with a high near 64. Calm wind becoming north northwest around 6 mph in the afternoon.

    High: 64 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Patchy fog after 5am. Otherwise, mostly clear, with a low around 46. Calm wind.

    Low: 46 °F

    Mostly Clear
    then Patchy
    Fog

  • Wednesday

    Wednesday: Patchy fog before 7am. Otherwise, sunny, with a high near 68.

    High: 68 °F

    Patchy Fog
    then Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 47.

    Low: 47 °F

    Mostly Clear

  • Thursday

    Thursday: Patchy fog before 7am. Otherwise, sunny, with a high near 69.

    High: 69 °F

    Patchy Fog
    then Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 46.

    Low: 46 °F

    Mostly Clear

Detailed Forecast

Tonight
Patchy fog after 2am. Otherwise, mostly clear, with a low around 43. Calm wind.
Monday
Areas of fog before 9am. Otherwise, sunny, with a high near 59. Calm wind becoming north around 6 mph in the afternoon.
Monday Night
Patchy fog after midnight. Otherwise, mostly clear, with a low around 45. Calm wind.
Tuesday
Mostly sunny, with a high near 64. Calm wind becoming north northwest around 6 mph in the afternoon.
Tuesday Night
Patchy fog after 5am. Otherwise, mostly clear, with a low around 46. Calm wind.
Wednesday
Patchy fog before 7am. Otherwise, sunny, with a high near 68.
Wednesday Night
Mostly clear, with a low around 47.
Thursday
Patchy fog before 7am. Otherwise, sunny, with a high near 69.
Thursday Night
Mostly clear, with a low around 46.
Friday
Sunny, with a high near 69.
Friday Night
Mostly clear, with a low around 46.
Saturday
Sunny, with a high near 68.
Saturday Night
Partly cloudy, with a low around 46.
Sunday
Mostly sunny, with a high near 66.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles SW Atherton CA
 37.44°N 122.24°W (Elev. 344 ft)
Last Update:
6:20 pm PST Dec 7, 2025
Forecast Valid:
7pm PST Dec 7, 2025-6pm PST Dec 14, 2025
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation