Severe Thunderstorms and Flash Flooding in the Central U.S.; A Dangerous Heatwave Coming to the West

Multiple rounds of widespread heavy rain, localized flash flooding, and severe thunderstorms are possible from the central Plains into the Great Lakes today, Friday and Saturday. A dangerous heatwave with record breaking and triple digit temperatures is expected this weekend into next week over the Northwest U.S. Excessive Heat Watches and Warnings have been issued. Read More >

Current conditions at

LOS ALTOS (LOAC1)

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

NA

69°F

21°C

Humidity 59%
Wind Speed NE 3 MPH
Barometer NA
Dewpoint 54°F (12°C)
Visibility NA
Last update 24 Jun 11:10 AM PDT
Extended Forecast for

Sunnyvale CA

  • This
    Afternoon

    This Afternoon: Sunny, with a high near 76. Light north wind becoming north northwest 6 to 11 mph.

    Sunny

    High: 76 °F

  • Tonight

    Tonight: Increasing clouds, with a low around 55. Northwest wind 6 to 11 mph becoming light north  after midnight.

    Increasing
    Clouds

    Low: 55 °F

  • Friday

    Friday: Mostly cloudy through mid morning, then gradual clearing, with a high near 79. Light north wind becoming northwest 5 to 10 mph in the afternoon.

    Becoming
    Sunny

    High: 79 °F

  • Friday
    Night

    Friday Night: Mostly clear, with a low around 56. Northwest wind 6 to 11 mph becoming light west  after midnight. Winds could gust as high as 18 mph.

    Mostly Clear

    Low: 56 °F

  • Saturday

    Saturday: Sunny, with a high near 84. Light west wind becoming west northwest 5 to 10 mph in the afternoon.

    Sunny

    High: 84 °F

  • Saturday
    Night

    Saturday Night: Mostly clear, with a low around 58.

    Mostly Clear

    Low: 58 °F

  • Sunday

    Sunday: Sunny, with a high near 82.

    Sunny

    High: 82 °F

  • Sunday
    Night

    Sunday Night: Mostly clear, with a low around 57.

    Mostly Clear

    Low: 57 °F

  • Monday

    Monday: Sunny, with a high near 82.

    Sunny

    High: 82 °F

Detailed Forecast

This Afternoon
Sunny, with a high near 76. Light north wind becoming north northwest 6 to 11 mph.
Tonight
Increasing clouds, with a low around 55. Northwest wind 6 to 11 mph becoming light north after midnight.
Friday
Mostly cloudy through mid morning, then gradual clearing, with a high near 79. Light north wind becoming northwest 5 to 10 mph in the afternoon.
Friday Night
Mostly clear, with a low around 56. Northwest wind 6 to 11 mph becoming light west after midnight. Winds could gust as high as 18 mph.
Saturday
Sunny, with a high near 84. Light west wind becoming west northwest 5 to 10 mph in the afternoon.
Saturday Night
Mostly clear, with a low around 58.
Sunday
Sunny, with a high near 82.
Sunday Night
Mostly clear, with a low around 57.
Monday
Sunny, with a high near 82.
Monday Night
Mostly clear, with a low around 58.
Tuesday
Sunny, with a high near 85.
Tuesday Night
Mostly clear, with a low around 59.
Wednesday
Sunny, with a high near 84.
Click Map For Forecast
Point Forecast:
Sunnyvale CA
 37.38°N 122.05°W (Elev. 118 ft)
4:02 am PDT Jun 24, 2021
12pm PDT Jun 24, 2021-6pm PDT Jun 30, 2021
 
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Additional Resources

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Hourly Weather Forecast

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