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      Elev 243 ft, 37.316 °N 122.027 °W

      Cupertino, CA

      South Blaney Station61°
      Updated: 6:19 AM PDT on September 11, 2026 (GMT -7)
      4 minutes ago
      84°
      60°
      61
      Feels Like 61
      Mostly Cloudy
      N
      0
      Lower temperature is expected today
      50
      50
      575
      90
      50
      7
      0 mph
      50
      50
      50
      50
      50
      50
      Radar · Now
        Hyper-local data from Weather Underground's network of
        400,000+ personal weather stations worldwide
        Today
        Sat 09/12
        High 84°f
         15% Precip. / 0 in
        Partly cloudy skies. High 84F. Winds N at 10 to 15 mph.
        Tonight
        Sat 09/12
        Low 57°f
         5% Precip. / 0 in
        Mainly clear skies. Low 57F. Winds NNW at 5 to 10 mph.
        Tomorrow
        Sun 09/13
        High 77°f57°f
         4% Precip. / 0 in
        Partly cloudy skies. High 77F. Winds NNW at 10 to 20 mph.
        Hourly Forecast
        Now
        62°
        6:47AM
        Sunrise
        7AM
        61°
        8AM
        64°
        9AM
        68°
        10AM
        70°
        11AM
        74°
        12PM
        77°
        1PM
        80°
        2PM
        82°
        3PM
        83°
        4PM
        82°
        5PM
        80°
        6PM
        77°
        7PM
        73°
        7:21PM
        Sunset
        8PM
        70°
        9PM
        68°
        10PM
        66°
        11PM
        65°
        12AM
        63°
        1AM
        62°
        2AM
        61°
        3AM
        60°
        4AM
        59°
        5AM
        59°
        6AM
        58°
        Precipitation
        15%
        Pollen
        Ragweed Pollen
        High
        Air Quality
        53
        Moderate
        UV Index
        0
        Low
        Additional Conditions
        1. Pressure 29.93 in
        2. Visibility 9 miles
        3. Clouds Mostly Cloudy
        4. Dew Point56°F
        5. Humidity 82%
        6. Rainfall 0 in
        7. Snow Depth 0 in
         KSJC Station History
        Almanac for September 11, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 84°F 84°F 104°F 1979
        4. Low 60°F 54°F 40°F 1897
        5. Rain/Snow Depth
        6. Precipitation 0 in 3.4 in -
        7. Snow 0 in 0 in -
        Almanac for September 12, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 77°F 83°F 105°F
        4. Low 60°F 54°F 40°F
        Astronomy
        1. Sun Rise Set
        2. Actual Time 6:47 AM 7:21 PM
        3. Civil Twilight 6:20 AM 7:47 PM
        4. Nautical Twilight 5:49 AM 8:18PM
        5. Astronomical Twilight 5:18 AM 8:50 PM
        1. Length of Visible Light 13h 27m
        2. Length of Day 12h 34m
        3. Tomorrow will be 2 minutes 21 seconds shorter
        1. Moon 7:22 AM 7:34 PM
        2. Waxing Crescent0% of the Moon is Illuminated
        Sep 18
        Waxing Half First Qtr
        Sep 26
        Full Moon
        Oct 3
        Waning Half Last Qtr
        Oct 10
        New Moon
        Precipitation
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