Portola Valley, California
Current Conditions -  °F | °C
As of 1:47 PM on Wednesday 30 Jul 2014 (Local Time) from KPAO Reporting Station
Clear Clear  
Wind Chill: 77°   Ceiling: Unl
Heat Index: 79°   Visibility: 10mi
Dew Point: 61°   Wind: 12mph
Humidity: 57%   Direction: 360°N
Pressure: 29.97"   Gusts: NA
Location:  37.38°N, 122.24°W
Report Text: KPAO 302047Z 36010KT 10SM SKC 25/16 A2997
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Tropical Storm Tracking
Hourly Forecast -  °F | °C
Hi 86° - Lo 61°
3 PM
Sunny
Sunny
83°
4 PM
Sunny
Sunny
85°
5 PM
Sunny
Sunny
86°
6 PM
Sunny
Sunny
84°
7 PM
Sunny
Sunny
83°
8 PM
Sunny
Sunny
80°
Weather Maps
Daily Forecast -  °F | °C
wed thu fri sat sun mon tue wed thu fri
jul
30
Sunny
Sunny
86°
61°
jul
31
P Cloudy
P Cloudy
89°
61°
aug
01
P Cloudy
P Cloudy
89°
61°
aug
02
P Cloudy
P Cloudy
86°
59°
aug
03
P Cloudy
P Cloudy
86°
59°
aug
04
P Cloudy
P Cloudy
85°
59°
aug
05
P Cloudy
P Cloudy
85°
61°
aug
06
P Cloudy
P Cloudy
83°
61°
aug
07
P Cloudy
P Cloudy
84°
61°
aug
08
P Cloudy
P Cloudy
85°
61°
Details for Wednesday, July 30
Plentiful sunshine. High 86F. Winds NW at 10 to 15 mph.
Evening: Partly cloudy skies early will give way to cloudy skies late. Low 61F. Winds WNW at 5 to 10 mph.
UV Index: 8 (Very High)
Ultraviolet Radiation Index
Relative Humidity: 44%
Relative Humidity
Precipitation: 0%
Probability of Precipitation
Snow: 0%
Snow
Cloud Coverage: 4%
Cloud Coverage
Sunrise: 6:11 AM
Sunset: 8:18 PM
 
Moonrise: 9:43 AM
Moonset: 10:09 PM
Moon Phase:  Waxing Crescent
Moonphase:
Waxing Crescent
Wind Direction:  NW
Direction: NW (326°)
Speed: 12Mph(19Km, 13Kts)
Details for Thursday, July 31
Partly cloudy skies. High 89F. Winds NW at 10 to 15 mph.
Evening: Partly cloudy skies early will become overcast later during the night. Low 61F. Winds WNW at 10 to 15 mph.
UV Index: 10 (Very High)
Ultraviolet Radiation Index
Relative Humidity: 59%
Relative Humidity
Precipitation: 0%
Probability of Precipitation
Snow: 0%
Snow
Cloud Coverage: 23%
Cloud Coverage
Sunrise: 6:12 AM
Sunset: 8:17 PM
 
Moonrise: 10:38 AM
Moonset: 10:40 PM
Moon Phase:  Waxing Crescent
Moonphase:
Waxing Crescent
Wind Direction:  NW
Direction: NW (312°)
Speed: 11Mph(18Km, 13Kts)
Details for Friday, August 01
Partly cloudy. Highs in the upper 80s and lows in the low 60s.
UV Index: 10 (Very High)
Ultraviolet Radiation Index
Relative Humidity: 57%
Relative Humidity
Precipitation: 0%
Probability of Precipitation
Snow: 0%
Snow
Cloud Coverage: 26%
Cloud Coverage
Sunrise: 6:13 AM
Sunset: 8:17 PM
 
Moonrise: 11:34 AM
Moonset: 11:11 PM
Moon Phase:  Waxing Crescent
Moonphase:
Waxing Crescent
Wind Direction:  NW
Direction: NW (304°)
Speed: 12Mph(19Km, 13Kts)
Details for Saturday, August 02
Times of sun and clouds. Highs in the mid 80s and lows in the upper 50s.
UV Index: 10 (Very High)
Ultraviolet Radiation Index
Relative Humidity: 59%
Relative Humidity
Precipitation: 0%
Probability of Precipitation
Snow: 0%
Snow
Cloud Coverage: 17%
Cloud Coverage
Sunrise: 6:14 AM
Sunset: 8:16 PM
 
Moonrise: 12:32 PM
Moonset: 11:46 PM
Moon Phase:  Waxing Crescent
Moonphase:
Waxing Crescent
Wind Direction:  WNW
Direction: WNW (290°)
Speed: 13Mph(20Km, 15Kts)
Details for Sunday, August 03
Mix of sun and clouds. Highs in the mid 80s and lows in the upper 50s.
UV Index: 10 (Very High)
Ultraviolet Radiation Index
Relative Humidity: 59%
Relative Humidity
Precipitation: 0%
Probability of Precipitation
Snow: 0%
Snow
Cloud Coverage: 18%
Cloud Coverage
Sunrise: 6:15 AM
Sunset: 8:15 PM
 
Moonrise: 1:30 PM
Moonset: 12:01 AM
Moon Phase:  First Quarter
Moonphase:
First Quarter
Wind Direction:  WNW
Direction: WNW (291°)
Speed: 12Mph(19Km, 13Kts)
Details for Monday, August 04
Times of sun and clouds. Highs in the mid 80s and lows in the upper 50s.
UV Index: 10 (Very High)
Ultraviolet Radiation Index
Relative Humidity: 61%
Relative Humidity
Precipitation: 10%
Probability of Precipitation
Snow: 0%
Snow
Cloud Coverage: 22%
Cloud Coverage
Sunrise: 6:15 AM
Sunset: 8:13 PM
 
Moonrise: 2:31 PM
Moonset: 12:24 AM
Moon Phase:  Waxing Gibbous
Moonphase:
Waxing Gibbous
Wind Direction:  W
Direction: W (276°)
Speed: 11Mph(18Km, 13Kts)
Details for Tuesday, August 05
Mix of sun and clouds. Highs in the mid 80s and lows in the low 60s.
UV Index: 10 (Very High)
Ultraviolet Radiation Index
Relative Humidity: 60%
Relative Humidity
Precipitation: 0%
Probability of Precipitation
Snow: 0%
Snow
Cloud Coverage: 24%
Cloud Coverage
Sunrise: 6:16 AM
Sunset: 8:12 PM
 
Moonrise: 3:32 PM
Moonset: 1:07 AM
Moon Phase:  Waxing Gibbous
Moonphase:
Waxing Gibbous
Wind Direction:  NW
Direction: NW (309°)
Speed: 12Mph(19Km, 13Kts)
Details for Wednesday, August 06
Times of sun and clouds. Highs in the low 80s and lows in the low 60s.
UV Index: 10 (Very High)
Ultraviolet Radiation Index
Relative Humidity: 59%
Relative Humidity
Precipitation: 0%
Probability of Precipitation
Snow: 0%
Snow
Cloud Coverage: 19%
Cloud Coverage
Sunrise: 6:17 AM
Sunset: 8:11 PM
 
Moonrise: 4:33 PM
Moonset: 1:57 AM
Moon Phase:  Waxing Gibbous
Moonphase:
Waxing Gibbous
Wind Direction:  WNW
Direction: WNW (300°)
Speed: 12Mph(19Km, 14Kts)
Details for Thursday, August 07
Partly cloudy. Highs in the mid 80s and lows in the low 60s.
UV Index: 10 (Very High)
Ultraviolet Radiation Index
Relative Humidity: 59%
Relative Humidity
Precipitation: 0%
Probability of Precipitation
Snow: 0%
Snow
Cloud Coverage: 23%
Cloud Coverage
Sunrise: 6:18 AM
Sunset: 8:10 PM
 
Moonrise: 5:30 PM
Moonset: 2:55 AM
Moon Phase:  Waxing Gibbous
Moonphase:
Waxing Gibbous
Wind Direction:  WNW
Direction: WNW (292°)
Speed: 12Mph(20Km, 14Kts)
Details for Friday, August 08
Times of sun and clouds. Highs in the mid 80s and lows in the low 60s.
UV Index: 10 (Very High)
Ultraviolet Radiation Index
Relative Humidity: 59%
Relative Humidity
Precipitation: 0%
Probability of Precipitation
Snow: 0%
Snow
Cloud Coverage: 21%
Cloud Coverage
Sunrise: 6:19 AM
Sunset: 8:09 PM
 
Moonrise: 6:25 PM
Moonset: 3:58 AM
Moon Phase:  Waxing Gibbous
Moonphase:
Waxing Gibbous
Wind Direction:  WNW
Direction: WNW (285°)
Speed: 13Mph(20Km, 15Kts)
Daily Forecast Chart
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