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      Elev 690 ft, 37.387 °N 122.199 °W

      Portola Valley, CA

      Alpine Hills Station61°
      Tue, Nov 3, 2026
      Tomorrow
      Wed 11/04
      High 63°f49°f
      75% Precip. / 0.13 in
      A steady rain in the morning. Showers continuing in the afternoon. High 63F. Winds S at 5 to 10 mph. Chance of rain 80%.
      Tomorrow night
      Wed 11/04
      Low 49°f
      51% Precip. / 0.03 in
      Showers in the evening with some clearing overnight. Low 49F. Winds light and variable. Chance of rain 50%.
      Sunrise 6:35 AM
      Sunset 5:08 PM
      Moonrise 12:53 AM
      Moonset 2:15 PM
      Waning Crescent, 33% visible
      Hourly Forecast
      12AM
      51°
      1AM
      51°
      2AM
      51°
      3AM
      51°
      4AM
      51°
      5AM
      50°
      6AM
      50°
      6:35AM
      Sunrise
      7AM
      50°
      8AM
      50%
      54°
      9AM
      75%
      56°
      10AM
      50%
      58°
      11AM
      60%
      60°
      12PM
      43%
      61°
      1PM
      45%
      62°
      2PM
      36%
      62°
      3PM
      62°
      4PM
      62°
      5PM
      37%
      60°
      5:08PM
      Sunset
      6PM
      45%
      58°
      7PM
      52%
      57°
      8PM
      38%
      56°
      9PM
      38%
      55°
      10PM
      55°
      11PM
      53°
      Time Conditions Temp. Feels Like Precip Amount Cloud Cover Dew Point Humidity Wind Pressure
      12:00 am
      Partly Cloudy
      		 51°F 51°F 11% 0in 34% 46°F 82% 3 mph S 30.07in
      1:00 am
      Partly Cloudy
      		 51°F 50°F 20% 0in 41% 47°F 87% 4 mph SSW 30.08in
      2:00 am
      Partly Cloudy
      		 51°F 50°F 24% 0in 58% 48°F 90% 4 mph SSW 30.08in
      3:00 am
      Mostly Cloudy
      		 51°F 50°F 22% 0in 68% 49°F 92% 3 mph SSW 30.07in
      4:00 am
      Partly Cloudy
      		 51°F 51°F 19% 0in 56% 49°F 93% 3 mph SSE 30.07in
      5:00 am
      Partly Cloudy
      		 50°F 50°F 15% 0in 37% 48°F 92% 3 mph SSE 30.07in
      6:00 am
      Partly Cloudy
      		 50°F 49°F 16% 0in 45% 48°F 92% 3 mph SSE 30.07in
      7:00 am
      Mostly Cloudy
      		 50°F 49°F 16% 0in 67% 47°F 89% 5 mph S 30.06in
      8:00 am
      Showers
      		 54°F 53°F 50% 0.01in 79% 50°F 86% 5 mph S 30.07in
      9:00 am
      Rain
      		 56°F 55°F 75% 0.02in 100% 51°F 81% 5 mph S 30.07in
      10:00 am
      Showers
      		 58°F 57°F 50% 0.01in 86% 52°F 79% 7 mph S 30.06in
      11:00 am
      Rain
      		 60°F 58°F 60% 0.03in 100% 53°F 77% 10 mph S 30.05in
      12:00 pm
      Showers
      		 61°F 60°F 43% 0.01in 74% 54°F 79% 10 mph S 30.04in
      1:00 pm
      Showers
      		 62°F 61°F 45% 0.01in 67% 54°F 77% 10 mph SSW 30.03in
      2:00 pm
      Showers
      		 62°F 61°F 36% 0.01in 50% 55°F 77% 9 mph SW 30.02in
      3:00 pm
      Partly Cloudy
      		 62°F 61°F 19% 0in 52% 55°F 78% 8 mph SW 30.02in
      4:00 pm
      Mostly Cloudy
      		 62°F 61°F 19% 0in 68% 54°F 77% 6 mph SW 30.02in
      5:00 pm
      Showers
      		 60°F 60°F 37% 0.01in 73% 54°F 81% 6 mph SSW 30.02in
      6:00 pm
      Showers
      		 58°F 58°F 45% 0.01in 76% 54°F 85% 4 mph SSE 30.03in
      7:00 pm
      Showers
      		 57°F 57°F 52% 0.02in 79% 54°F 89% 3 mph SE 30.04in
      8:00 pm
      Showers
      		 56°F 56°F 38% 0in 76% 53°F 91% 2 mph SE 30.04in
      9:00 pm
      Showers
      		 55°F 55°F 38% 0.01in 75% 53°F 93% 1 mph SE 30.05in
      10:00 pm
      Mostly Cloudy
      		 55°F 55°F 18% 0in 72% 53°F 93% 2 mph SE 30.05in
      11:00 pm
      Mostly Cloudy
      		 53°F 53°F 20% 0in 71% 52°F 94% 1 mph ESE 30.04in
      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 65°F 74°F 90°F 1997
      4. Low 45°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 63°F 73°F 87°F
      4. Low 49°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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