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

Major Winter Storm System Will Bring A Variety Of Impacts To The Central, Southern, And Eastern U.S. Through The Weekend

An impactful winter storm will track from the Plains to New England through Sunday, with bitter cold behind it. Heavy snow is likely from the Corn Belt to interior Northeast, with significant ice accumulations in the Ohio Valley and New England. Farther south, heavy rain could lead to flooding in the Tennessee Valley on Saturday, with isolated severe thunderstorms in the lower Mississippi Valley. Read More >

Current conditions at

LOS ALTOS (LOAC1)

Lat: 37.354722°NLon: 122.141667°WElev: 539ft.

NA

49°F

9°C

Humidity 93%
Wind Speed WSW 1 G 6 MPH
Barometer NA
Dewpoint 47°F (8°C)
Visibility NA
Last update 18 Jan 3:10 am PST
Extended Forecast for

Cupertino CA

  • Today

    Today: Partly sunny, with a high near 62. South southwest wind 5 to 8 mph becoming east southeast in the morning.

    Partly Sunny

    High: 62 °F

  • Tonight

    Tonight: Mostly cloudy, with a low around 49. Calm wind becoming east southeast around 5 mph after midnight.

    Mostly Cloudy

    Low: 49 °F

  • Saturday

    Saturday: Partly sunny, with a high near 64. Calm wind becoming north northwest 5 to 7 mph in the afternoon.

    Partly Sunny

    High: 64 °F

  • Saturday
    Night

    Saturday Night: Mostly cloudy, with a low around 50. North northwest wind 5 to 8 mph becoming light and variable in the evening.

    Mostly Cloudy

    Low: 50 °F

  • Sunday

    Sunday: A 50 percent chance of showers, mainly before 5pm. Mostly cloudy, with a high near 59. Calm wind becoming southwest 5 to 8 mph in the afternoon. New precipitation amounts of less than a tenth of an inch possible.

    Chance
    Showers

    High: 59 °F

  • Sunday
    Night

    Sunday Night: A 20 percent chance of showers before 11pm. Partly cloudy, with a low around 43.

    Slight Chance
    Showers then
    Partly Cloudy

    Low: 43 °F

  • M.L.King
    Day

    M.L.King Day: Sunny, with a high near 58.

    Sunny

    High: 58 °F

  • Monday
    Night

    Monday Night: Mostly clear, with a low around 41.

    Mostly Clear

    Low: 41 °F

  • Tuesday

    Tuesday: Sunny, with a high near 60.

    Sunny

    High: 60 °F

Detailed Forecast

Today
Partly sunny, with a high near 62. South southwest wind 5 to 8 mph becoming east southeast in the morning.
Tonight
Mostly cloudy, with a low around 49. Calm wind becoming east southeast around 5 mph after midnight.
Saturday
Partly sunny, with a high near 64. Calm wind becoming north northwest 5 to 7 mph in the afternoon.
Saturday Night
Mostly cloudy, with a low around 50. North northwest wind 5 to 8 mph becoming light and variable in the evening.
Sunday
A 50 percent chance of showers, mainly before 5pm. Mostly cloudy, with a high near 59. Calm wind becoming southwest 5 to 8 mph in the afternoon. New precipitation amounts of less than a tenth of an inch possible.
Sunday Night
A 20 percent chance of showers before 11pm. Partly cloudy, with a low around 43.
M.L.King Day
Sunny, with a high near 58.
Monday Night
Mostly clear, with a low around 41.
Tuesday
Sunny, with a high near 60.
Tuesday Night
Mostly clear, with a low around 41.
Wednesday
Sunny, with a high near 62.
Wednesday Night
Mostly clear, with a low around 43.
Thursday
Sunny, with a high near 63.
Click Map For Forecast
Disclaimer
Map Legend
Point Forecast:
Cupertino CA
 37.33°N 122.04°W (Elev. 243 ft)
Last Update:
1:55 am PST Jan 18, 2019
Forecast Valid:
4am PST Jan 18, 2019-6pm PST Jan 24, 2019
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation