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

Mountain View, Moffett Field (KNUQ)

Lat: 37.40583°NLon: 122.04806°WElev: 33.0ft.

Clear

63°F

17°C

Humidity 55%
Wind Speed NNW 16 MPH
Barometer 29.89 in (1012.19 mb)
Dewpoint 46°F (8°C)
Visibility 8.00 mi
Last update 19 Oct 04:15 PM PDT
Extended Forecast for

Sunnyvale CA

  • Tonight

    Tonight: Patchy fog after 3am. Otherwise, mostly cloudy, with a low around 49. West northwest wind 5 to 9 mph becoming calm in the evening.

    Low: 49 °F

    Mostly Cloudy
    then Patchy
    Fog

  • Tuesday

    Tuesday: Patchy fog before 9am. Otherwise, mostly cloudy, with a high near 70. Calm wind becoming north northwest around 6 mph in the afternoon.

    High: 70 °F

    Patchy Fog
    then Mostly
    Cloudy

  • Tuesday Night

    Tuesday Night: A 40 percent chance of showers, mainly after 4am. Mostly cloudy, with a low around 52. Northwest wind around 5 mph becoming calm in the evening.

    Low: 52 °F

    Mostly Cloudy
    then Chance
    Showers

  • Wednesday

    Wednesday: Showers likely, mainly after 11am. Patchy fog before 10am. Otherwise, mostly cloudy, with a high near 69. Calm wind. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.

    High: 69 °F

    Showers
    Likely and
    Patchy Fog

  • Wednesday Night

    Wednesday Night: A 50 percent chance of showers, mainly before 11pm. Patchy fog before 11pm, then patchy fog after 2am. Otherwise, mostly cloudy, with a low around 51. West wind around 5 mph becoming calm in the evening. New precipitation amounts of less than a tenth of an inch possible.

    Low: 51 °F

    Chance
    Showers and
    Patchy Fog

  • Thursday

    Thursday: A 40 percent chance of showers. Patchy fog before noon. Otherwise, mostly cloudy, with a high near 68. New precipitation amounts of less than a tenth of an inch possible.

    High: 68 °F

    Chance
    Showers and
    Patchy Fog

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 50.

    Low: 50 °F

    Mostly Cloudy

  • Friday

    Friday: Patchy fog between 8am and 10am. Otherwise, sunny, with a high near 70.

    High: 70 °F

    Patchy Fog
    then Sunny

  • Friday Night

    Friday Night: Patchy fog after midnight. Otherwise, clear, with a low around 47.

    Low: 47 °F

    Clear then
    Patchy Fog

Detailed Forecast

Tonight
Patchy fog after 3am. Otherwise, mostly cloudy, with a low around 49. West northwest wind 5 to 9 mph becoming calm in the evening.
Tuesday
Patchy fog before 9am. Otherwise, mostly cloudy, with a high near 70. Calm wind becoming north northwest around 6 mph in the afternoon.
Tuesday Night
A 40 percent chance of showers, mainly after 4am. Mostly cloudy, with a low around 52. Northwest wind around 5 mph becoming calm in the evening.
Wednesday
Showers likely, mainly after 11am. Patchy fog before 10am. Otherwise, mostly cloudy, with a high near 69. Calm wind. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday Night
A 50 percent chance of showers, mainly before 11pm. Patchy fog before 11pm, then patchy fog after 2am. Otherwise, mostly cloudy, with a low around 51. West wind around 5 mph becoming calm in the evening. New precipitation amounts of less than a tenth of an inch possible.
Thursday
A 40 percent chance of showers. Patchy fog before noon. Otherwise, mostly cloudy, with a high near 68. New precipitation amounts of less than a tenth of an inch possible.
Thursday Night
Mostly cloudy, with a low around 50.
Friday
Patchy fog between 8am and 10am. Otherwise, sunny, with a high near 70.
Friday Night
Patchy fog after midnight. Otherwise, clear, with a low around 47.
Saturday
Patchy fog before 9am. Otherwise, sunny, with a high near 72.
Saturday Night
Mostly clear, with a low around 49.
Sunday
Patchy fog. Otherwise, mostly sunny, with a high near 74.
Sunday Night
Partly cloudy, with a low around 49.
Monday
Mostly sunny, with a high near 72.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Sunnyvale CA
 37.38°N 122.02°W (Elev. 92 ft)
Last Update:
1:47 pm PDT Oct 19, 2026
Forecast Valid:
4pm PDT Oct 19, 2026-6pm PDT Oct 26, 2026
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation