Portola Valley, California
Current Conditions -  °F | °C
As of 3:47 PM on Tuesday 30 Sep 2014 (Local Time) from KPAO Reporting Station
Clear Clear  
Wind Chill: 21°   Ceiling: Unl
Heat Index: 21°   Visibility: 30mi
Dew Point: 17°   Wind: 13mph
Humidity: 78%   Direction: 360°N
Pressure: 29.87"   Gusts: NA
Location:  37.38°N, 122.24°W
Report Text: KPAO 302247Z 36011KT 30SM SKC 21/17 A2987
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Tropical Storm Tracking
Hourly Forecast -  °F | °C
Hi 23° - Lo 15°
6 PM
Sunny
Sunny
22°
7 PM
Clear
Clear
21°
8 PM
Clear
Clear
19°
9 PM
Clear
Clear
19°
10 PM
Clear
Clear
18°
11 PM
Clear
Clear
18°
Weather Maps
Daily Forecast -  °F | °C
tue wed thu fri sat sun mon tue wed thu
sep
30
P Cloudy
P Cloudy
23°
15°
oct
01
P Cloudy
P Cloudy
30°
16°
oct
02
P Cloudy
P Cloudy
33°
18°
oct
03
P Cloudy
P Cloudy
34°
19°
oct
04
P Cloudy
P Cloudy
33°
15°
oct
05
P Cloudy
P Cloudy
30°
15°
oct
06
P Cloudy
P Cloudy
27°
14°
oct
07
P Cloudy
P Cloudy
24°
14°
oct
08
P Cloudy
P Cloudy
23°
14°
oct
09
P Cloudy
P Cloudy
23°
13°
Details for Tuesday, September 30 (Evening)
Evening: Clear this evening then becoming mostly cloudy after midnight. Low 59F. Winds NW at 5 to 10 mph.
UV Index: 1 (Low)
Ultraviolet Radiation Index
Relative Humidity: 58%
Relative Humidity
Precipitation: 0%
Probability of Precipitation
Snow: 0%
Snow
Cloud Coverage: 4%
Cloud Coverage
Sunrise: 7:03 AM
Sunset: 6:53 PM
 
Moonrise: 1:10 PM
Moonset: 11:33 PM
Moon Phase:  Waxing Crescent
Moonphase:
Waxing Crescent
Wind Direction:  NW
Direction: NW (304°)
Speed: 9Mph(14Km, 10Kts)
Details for Wednesday, October 01
Partly cloudy skies. High 86F. Winds N at 10 to 15 mph.
Evening: Clear early then increasing cloudiness overnight. Low 61F. Winds E at 5 to 10 mph.
UV Index: 6 (High)
Ultraviolet Radiation Index
Relative Humidity: 33%
Relative Humidity
Precipitation: 0%
Probability of Precipitation
Snow: 0%
Snow
Cloud Coverage: 20%
Cloud Coverage
Sunrise: 7:04 AM
Sunset: 6:52 PM
 
Moonrise: 2:04 PM
Moonset: 12:01 AM
Moon Phase:  First Quarter
Moonphase:
First Quarter
Wind Direction:  N
Direction: N (6°)
Speed: 11Mph(18Km, 13Kts)
Details for Thursday, October 02
Mix of sun and clouds. Highs in the low 90s and lows in the mid 60s.
UV Index: 6 (High)
Ultraviolet Radiation Index
Relative Humidity: 23%
Relative Humidity
Precipitation: 0%
Probability of Precipitation
Snow: 0%
Snow
Cloud Coverage: 20%
Cloud Coverage
Sunrise: 7:05 AM
Sunset: 6:50 PM
 
Moonrise: 2:54 PM
Moonset: 12:34 AM
Moon Phase:  Waxing Gibbous
Moonphase:
Waxing Gibbous
Wind Direction:  NE
Direction: NE (34°)
Speed: 8Mph(13Km, 9Kts)
Details for Friday, October 03
Mix of sun and clouds. Highs in the mid 90s and lows in the mid 60s.
UV Index: 6 (High)
Ultraviolet Radiation Index
Relative Humidity: 21%
Relative Humidity
Precipitation: 0%
Probability of Precipitation
Snow: 0%
Snow
Cloud Coverage: 20%
Cloud Coverage
Sunrise: 7:06 AM
Sunset: 6:49 PM
 
Moonrise: 3:40 PM
Moonset: 1:38 AM
Moon Phase:  Waxing Gibbous
Moonphase:
Waxing Gibbous
Wind Direction:  NNE
Direction: NNE (24°)
Speed: 10Mph(17Km, 12Kts)
Details for Saturday, October 04
Partly cloudy. Highs in the low 90s and lows in the low 60s.
UV Index: 6 (High)
Ultraviolet Radiation Index
Relative Humidity: 26%
Relative Humidity
Precipitation: 0%
Probability of Precipitation
Snow: 0%
Snow
Cloud Coverage: 25%
Cloud Coverage
Sunrise: 7:07 AM
Sunset: 6:47 PM
 
Moonrise: 4:23 PM
Moonset: 2:46 AM
Moon Phase:  Waxing Gibbous
Moonphase:
Waxing Gibbous
Wind Direction:  N
Direction: N (8°)
Speed: 12Mph(19Km, 13Kts)
Details for Sunday, October 05
Mix of sun and clouds. Highs in the mid 80s and lows in the upper 50s.
UV Index: 6 (High)
Ultraviolet Radiation Index
Relative Humidity: 45%
Relative Humidity
Precipitation: 0%
Probability of Precipitation
Snow: 0%
Snow
Cloud Coverage: 24%
Cloud Coverage
Sunrise: 7:07 AM
Sunset: 6:46 PM
 
Moonrise: 5:03 PM
Moonset: 3:55 AM
Moon Phase:  Waxing Gibbous
Moonphase:
Waxing Gibbous
Wind Direction:  NW
Direction: NW (314°)
Speed: 10Mph(16Km, 12Kts)
Details for Monday, October 06
Mix of sun and clouds. Highs in the low 80s and lows in the upper 50s.
UV Index: 6 (High)
Ultraviolet Radiation Index
Relative Humidity: 54%
Relative Humidity
Precipitation: 0%
Probability of Precipitation
Snow: 0%
Snow
Cloud Coverage: 26%
Cloud Coverage
Sunrise: 7:08 AM
Sunset: 6:44 PM
 
Moonrise: 5:42 PM
Moonset: 5:05 AM
Moon Phase:  Waxing Gibbous
Moonphase:
Waxing Gibbous
Wind Direction:  NW
Direction: NW (310°)
Speed: 10Mph(17Km, 12Kts)
Details for Tuesday, October 07
Partly cloudy. Highs in the mid 70s and lows in the upper 50s.
UV Index: 6 (High)
Ultraviolet Radiation Index
Relative Humidity: 72%
Relative Humidity
Precipitation: 10%
Probability of Precipitation
Snow: 0%
Snow
Cloud Coverage: 29%
Cloud Coverage
Sunrise: 7:09 AM
Sunset: 6:43 PM
 
Moonrise: 6:22 PM
Moonset: 6:15 AM
Moon Phase:  Waxing Gibbous
Moonphase:
Waxing Gibbous
Wind Direction:  W
Direction: W (280°)
Speed: 11Mph(17Km, 12Kts)
Details for Wednesday, October 08
Partly cloudy. Highs in the mid 70s and lows in the upper 50s.
UV Index: 6 (High)
Ultraviolet Radiation Index
Relative Humidity: 76%
Relative Humidity
Precipitation: 10%
Probability of Precipitation
Snow: 0%
Snow
Cloud Coverage: 30%
Cloud Coverage
Sunrise: 7:10 AM
Sunset: 6:41 PM
 
Moonrise: 7:01 PM
Moonset: 7:24 AM
Moon Phase:  Full
Moonphase:
Full
Wind Direction:  WNW
Direction: WNW (295°)
Speed: 11Mph(18Km, 13Kts)
Details for Thursday, October 09
Partly cloudy. Highs in the low 70s and lows in the mid 50s.
UV Index: 6 (High)
Ultraviolet Radiation Index
Relative Humidity: 73%
Relative Humidity
Precipitation: 10%
Probability of Precipitation
Snow: 0%
Snow
Cloud Coverage: 31%
Cloud Coverage
Sunrise: 7:11 AM
Sunset: 6:40 PM
 
Moonrise: 7:43 PM
Moonset: 8:32 AM
Moon Phase:  Waning Gibbous
Moonphase:
Waning Gibbous
Wind Direction:  NW
Direction: NW (318°)
Speed: 11Mph(18Km, 13Kts)
Daily Forecast Chart
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