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      Elev 690 ft, 37.387 °N 122.199 °W

      Portola Valley, CA

      Alpine Hills Station61°
      Updated: 11:05 AM PST on November 2, 2026 (GMT -8)
      58 seconds ago
      67°
      44°
      61
      Feels Like 61
      Partly Cloudy
      N
      4
      Similar temperature is expected today
      Wundermap

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       Wundermap
      50
      50
      575
      90
      50
      7
      0 mph
      50
      50
      50
      50
      50
      50
      Now
        Hyper-local data from Weather Underground's network of
        400,000+ personal weather stations worldwide
        Today
        Tue 11/03
        High 67°f
         3% Precip. / 0 in
        Partly cloudy skies this morning will become overcast during the afternoon. High 67F. Winds light and variable.
        Tonight
        Tue 11/03
        Low 50°f
         17% Precip. / 0 in
        Cloudy skies early, followed by partial clearing. Low around 50F. Winds light and variable.
        Tomorrow
        Wed 11/04
        High 64°f50°f
         72% Precip. / 0.09 in
        Light rain early...then remaining cloudy with showers in the afternoon. High 64F. Winds S at 5 to 10 mph. Chance of rain 70%.
        Hourly Forecast
        Now
        62°
        12PM
        63°
        1PM
        64°
        2PM
        64°
        3PM
        64°
        4PM
        63°
        5PM
        61°
        5:09PM
        Sunset
        6PM
        58°
        7PM
        58°
        8PM
        57°
        9PM
        56°
        10PM
        55°
        11PM
        54°
        12AM
        53°
        1AM
        52°
        2AM
        52°
        3AM
        52°
        4AM
        52°
        5AM
        51°
        6AM
        51°
        6:35AM
        Sunrise
        7AM
        52°
        8AM
        46%
        55°
        9AM
        72%
        57°
        10AM
        46%
        59°
        11AM
        52%
        61°
        Precipitation
        72%
        Pollen
        Ragweed Pollen
        Low
        Air Quality
        18
        Good
        UV Index
        3
        Moderate
        Additional Conditions
        1. Pressure 30.16 in
        2. Visibility 10 miles
        3. Clouds Partly Cloudy
        4. Dew Point46°F
        5. Humidity 56%
        6. Rainfall 0 in
        7. Snow Depth 0 in
         KPAO Station History
        Almanac for November 2, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 67°F 74°F 90°F 1997
        4. Low 44°F 43°F 33°F 2003
        5. Rain/Snow Depth
        6. Precipitation 0 in - in -
        7. Snow 0 in - in -
        Almanac for November 3, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 64°F 73°F 87°F
        4. Low 50°F 43°F 32°F
        Astronomy
        1. Sun Rise Set
        2. Actual Time 6:34 AM 5:09 PM
        3. Civil Twilight 6:07 AM 5:36 PM
        4. Nautical Twilight 5:36 AM 6:07PM
        5. Astronomical Twilight 5:06 AM 6:37 PM
        1. Length of Visible Light 11h 28m
        2. Length of Day 10h 34m
        3. Tomorrow will be 2 minutes 4 seconds shorter
        1. Moon - 1:48 PM
        2. Waning Crescent44% of the Moon is Illuminated
        Nov 8
        New Moon
        Nov 17
        Waxing Half First Qtr
        Nov 24
        Full Moon
        Nov 30
        Waning Half Last Qtr
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