Portola Valley, California
Current Conditions -  °F | °C
As of 11:47 AM on Saturday 19 Apr 2014 (Local Time) from KPAO Reporting Station
Clear Clear  
Wind Chill: 64°   Ceiling: Unl
Heat Index: 64°   Visibility: 15mi
Dew Point: 48°   Wind: 6mph
Humidity: 56%   Direction: NA
Pressure: 30.1"   Gusts: NA
Location:  37.38°N, 122.24°W
Report Text: KPAO 191847Z VRB05KT 15SM SKC 18/09 A3010
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Personal Weather Stations






























Hourly Forecast -  °F | °C
Hi 68° - Lo 49°
1 PM
Sunny
Sunny
66°
2 PM
Sunny
Sunny
68°
3 PM
Sunny
Sunny
68°
4 PM
Sunny
Sunny
68°
5 PM
Sunny
Sunny
66°
6 PM
Sunny
Sunny
64°
Weather Maps
Daily Forecast -  °F | °C
sat sun mon tue wed thu fri sat sun mon
apr
19
Sunny
Sunny
68°
49°
apr
20
M Sunny
M Sunny
79°
49°
apr
21
P Cloudy
P Cloudy
69°
50°
apr
22
Showers/Wind
Showers/Wind
63°
47°
apr
23
P Cloudy
P Cloudy
69°
48°
apr
24
P Cloudy
P Cloudy
72°
51°
apr
25
Cloudy
Cloudy
70°
50°
apr
26
Showers
Showers
64°
49°
apr
27
Rain
Rain
64°
51°
apr
28
Showers
Showers
66°
50°
Details for Saturday, April 19
Plentiful sunshine. High 68F. Winds NW at 10 to 20 mph.
Evening: Mostly clear. Low 49F. Winds WNW at 10 to 15 mph.
UV Index: 8 (Very High)
Ultraviolet Radiation Index
Relative Humidity: 52%
Relative Humidity
Precipitation: 10%
Probability of Precipitation
Snow: 0%
Snow
Cloud Coverage: 8%
Cloud Coverage
Sunrise: 6:29 AM
Sunset: 7:48 PM
 
Moonrise: 11:59 PM
Moonset: 9:55 AM
Moon Phase:  Waning Gibbous
Moonphase:
Waning Gibbous
Wind Direction:  NW
Direction: NW (310°)
Speed: 16Mph(26Km, 14Kts)
Details for Sunday, April 20
Sunshine. High 79F. ENE winds shifting to NW at 10 to 15 mph.
Evening: Partly cloudy. Low 49F. Winds W at 5 to 10 mph.
UV Index: 8 (Very High)
Ultraviolet Radiation Index
Relative Humidity: 49%
Relative Humidity
Precipitation: 0%
Probability of Precipitation
Snow: 0%
Snow
Cloud Coverage: 17%
Cloud Coverage
Sunrise: 6:27 AM
Sunset: 7:49 PM
 
Moonrise: 12:31 AM
Moonset: 10:56 AM
Moon Phase:  Waning Gibbous
Moonphase:
Waning Gibbous
Wind Direction:  N
Direction: N (6°)
Speed: 12Mph(20Km, 10Kts)
Details for Monday, April 21
Partly cloudy. Highs in the upper 60s and lows in the low 50s.
UV Index: 7 (High)
Ultraviolet Radiation Index
Relative Humidity: 58%
Relative Humidity
Precipitation: 10%
Probability of Precipitation
Snow: 0%
Snow
Cloud Coverage: 60%
Cloud Coverage
Sunrise: 6:26 AM
Sunset: 7:50 PM
 
Moonrise: 1:23 AM
Moonset: 12:00 PM
Moon Phase:  Waning Gibbous
Moonphase:
Waning Gibbous
Wind Direction:  W
Direction: W (281°)
Speed: 12Mph(20Km, 10Kts)
Details for Tuesday, April 22
A few showers possible, windy. Highs in the low 60s and lows in the upper 40s.
UV Index: 8 (Very High)
Ultraviolet Radiation Index
Relative Humidity: 57%
Relative Humidity
Precipitation: 30%
Probability of Precipitation
Snow: 0%
Snow
Cloud Coverage: 17%
Cloud Coverage
Sunrise: 6:25 AM
Sunset: 7:51 PM
 
Moonrise: 2:09 AM
Moonset: 1:06 PM
Moon Phase:  Last Quarter
Moonphase:
Last Quarter
Wind Direction:  WNW
Direction: WNW (301°)
Speed: 20Mph(32Km, 17Kts)
Details for Wednesday, April 23
Mix of sun and clouds. Highs in the upper 60s and lows in the upper 40s.
UV Index: 8 (Very High)
Ultraviolet Radiation Index
Relative Humidity: 56%
Relative Humidity
Precipitation: 0%
Probability of Precipitation
Snow: 0%
Snow
Cloud Coverage: 17%
Cloud Coverage
Sunrise: 6:23 AM
Sunset: 7:52 PM
 
Moonrise: 2:52 AM
Moonset: 2:13 PM
Moon Phase:  Waning Crescent
Moonphase:
Waning Crescent
Wind Direction:  NW
Direction: NW (319°)
Speed: 16Mph(26Km, 14Kts)
Details for Thursday, April 24
Mix of sun and clouds. Highs in the low 70s and lows in the low 50s.
UV Index: 8 (Very High)
Ultraviolet Radiation Index
Relative Humidity: 59%
Relative Humidity
Precipitation: 20%
Probability of Precipitation
Snow: 0%
Snow
Cloud Coverage: 41%
Cloud Coverage
Sunrise: 6:22 AM
Sunset: 7:52 PM
 
Moonrise: 3:31 AM
Moonset: 3:20 PM
Moon Phase:  Waning Crescent
Moonphase:
Waning Crescent
Wind Direction:  NW
Direction: NW (317°)
Speed: 14Mph(23Km, 12Kts)
Details for Friday, April 25
Mostly Cloudy. Highs in the low 70s and lows in the low 50s.
UV Index: 5 (Moderate)
Ultraviolet Radiation Index
Relative Humidity: 69%
Relative Humidity
Precipitation: 20%
Probability of Precipitation
Snow: 0%
Snow
Cloud Coverage: 76%
Cloud Coverage
Sunrise: 6:21 AM
Sunset: 7:53 PM
 
Moonrise: 4:08 AM
Moonset: 4:26 PM
Moon Phase:  Waning Crescent
Moonphase:
Waning Crescent
Wind Direction:  WNW
Direction: WNW (285°)
Speed: 12Mph(20Km, 10Kts)
Details for Saturday, April 26
Showers. Highs in the mid 60s and lows in the upper 40s.
UV Index: 5 (Moderate)
Ultraviolet Radiation Index
Relative Humidity: 72%
Relative Humidity
Precipitation: 50%
Probability of Precipitation
Snow: 0%
Snow
Cloud Coverage: 78%
Cloud Coverage
Sunrise: 6:20 AM
Sunset: 7:54 PM
 
Moonrise: 4:44 AM
Moonset: 5:32 PM
Moon Phase:  Waning Crescent
Moonphase:
Waning Crescent
Wind Direction:  SW
Direction: SW (225°)
Speed: 12Mph(20Km, 10Kts)
Details for Sunday, April 27
Cloudy with rain. Highs in the mid 60s and lows in the low 50s.
UV Index: 7 (High)
Ultraviolet Radiation Index
Relative Humidity: 73%
Relative Humidity
Precipitation: 80%
Probability of Precipitation
Snow: 0%
Snow
Cloud Coverage: 67%
Cloud Coverage
Sunrise: 6:18 AM
Sunset: 7:55 PM
 
Moonrise: 5:20 AM
Moonset: 6:37 PM
Moon Phase:  Waning Crescent
Moonphase:
Waning Crescent
Wind Direction:  S
Direction: S (185°)
Speed: 15Mph(24Km, 13Kts)
Details for Monday, April 28
Showers possible. Highs in the mid 60s and lows in the low 50s.
UV Index: 8 (Very High)
Ultraviolet Radiation Index
Relative Humidity: 73%
Relative Humidity
Precipitation: 70%
Probability of Precipitation
Snow: 0%
Snow
Cloud Coverage: 56%
Cloud Coverage
Sunrise: 6:17 AM
Sunset: 7:56 PM
 
Moonrise: 5:58 AM
Moonset: 7:41 PM
Moon Phase:  Waning Crescent
Moonphase:
Waning Crescent
Wind Direction:  SW
Direction: SW (219°)
Speed: 12Mph(20Km, 10Kts)
Daily Forecast Chart
Chart.
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