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      Elev 23 ft, 37.338 °N 121.894 °W

      San Jose, CA

      Downtown San Jose Station55°
      Updated: 7:13 AM PDT on September 15, 2026 (GMT -7)
      5 minutes ago
      80°
      54°
      55
      Feels Like 55
      Partly 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
        Wed 09/16
        High 80°f
         2% Precip. / 0 in
        Partly cloudy skies. High near 80F. Winds NW at 10 to 15 mph.
        Tonight
        Wed 09/16
        Low 57°f
         11% Precip. / 0 in
        Clear to partly cloudy. Low 57F. NW winds shifting to S at 10 to 15 mph.
        Tomorrow
        Thu 09/17
        High 74°f59°f
         11% Precip. / 0 in
        Sunshine along with some cloudy intervals. High 74F. SSW winds shifting to NW at 10 to 20 mph.
        Hourly Forecast
        Now
        55°
        8AM
        57°
        9AM
        61°
        10AM
        65°
        11AM
        70°
        12PM
        75°
        1PM
        78°
        2PM
        80°
        3PM
        78°
        4PM
        77°
        5PM
        75°
        6PM
        73°
        7PM
        69°
        7:14PM
        Sunset
        8PM
        66°
        9PM
        63°
        10PM
        62°
        11PM
        61°
        12AM
        60°
        1AM
        59°
        2AM
        59°
        3AM
        59°
        4AM
        59°
        5AM
        58°
        6AM
        58°
        6:50AM
        Sunrise
        7AM
        58°
        Precipitation
        11%
        Pollen
        Ragweed Pollen
        High
        Air Quality
        29
        Good
        UV Index
        0
        Low
        Additional Conditions
        1. Pressure 29.88 in
        2. Visibility 9 miles
        3. Clouds Partly Cloudy
        4. Dew Point51°F
        5. Humidity 85%
        6. Rainfall 0 in
        7. Snow Depth 0 in
         KSJC Station History
        Almanac for September 15, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 80°F 82°F 102°F 1971
        4. Low 54°F 58°F 36°F 1895
        5. Rain/Snow Depth
        6. Precipitation 0 in 3.3 in -
        7. Snow 0 in 0 in -
        Almanac for September 16, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 74°F 82°F 103°F
        4. Low 54°F 58°F 43°F
        Astronomy
        1. Sun Rise Set
        2. Actual Time 6:49 AM 7:14 PM
        3. Civil Twilight 6:23 AM 7:41 PM
        4. Nautical Twilight 5:52 AM 8:11PM
        5. Astronomical Twilight 5:21 AM 8:43 PM
        1. Length of Visible Light 13h 17m
        2. Length of Day 12h 25m
        3. Tomorrow will be 2 minutes 21 seconds shorter
        1. Moon 11:41 AM 9:27 PM
        2. Waxing Crescent22% 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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