Grass Valley, California
Current Conditions -  °F | °C
As of 1:00 AM on Sunday 21 Sep 2014 (Local Time) from KGOO Reporting Station
Clear Clear  
Wind Chill: 23°   Ceiling: Unl
Heat Index: 23°   Visibility: 4mi
Dew Point:   Wind: 7mph
Humidity: 36%   Direction: 100°E
Pressure: 30.01"   Gusts: NA
Location:  39.22°N, 121.06°W
Report Text: KGOO 210800Z AUTO 10006KT 4SM CLR 23/07 A3001 RMK AO1
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Tropical Storm Tracking
Hourly Forecast -  °F | °C
Hi 27° - Lo 17°
2 AM
M Cloudy
M Cloudy
18°
3 AM
M Cloudy
M Cloudy
18°
4 AM
Iso T-Storms
Iso T-Storms
18°
5 AM
Cloudy
Cloudy
18°
6 AM
Cloudy
Cloudy
18°
7 AM
Cloudy
Cloudy
18°
Weather Maps
Daily Forecast -  °F | °C
sat sun mon tue wed thu fri sat sun mon
sep
20
Cloudy
Cloudy
27°
17°
sep
21
AM Clouds
AM Clouds
24°
16°
sep
22
Sunny
Sunny
28°
15°
sep
23
Sunny
Sunny
27°
15°
sep
24
Sunny
Sunny
26°
14°
sep
25
Showers
Showers
20°
11°
sep
26
P Cloudy
P Cloudy
20°
10°
sep
27
Sunny
Sunny
22°
11°
sep
28
Sunny
Sunny
22°
11°
sep
29
Sunny
Sunny
23°
11°
Details for Saturday, September 20 (Evening)
Evening: Cloudy. Low 63F. Winds light and variable.
UV Index: 0 (Low)
Ultraviolet Radiation Index
Relative Humidity: 67%
Relative Humidity
Precipitation: 20%
Probability of Precipitation
Snow: 0%
Snow
Cloud Coverage: 78%
Cloud Coverage
Sunrise: 6:50 AM
Sunset: 7:04 PM
 
Moonrise: 3:34 AM
Moonset: 5:09 PM
Moon Phase:  Waning Crescent
Moonphase:
Waning Crescent
Wind Direction:  N
Direction: N (360°)
Speed: 0Mph(0Km, 0Kts)
Details for Sunday, September 21
Cloudy skies early, then partly cloudy in the afternoon. A stray shower or thunderstorm is possible. High 76F. Winds light and variable.
Evening: A few clouds from time to time. Low near 60F. Winds light and variable.
UV Index: 5 (Moderate)
Ultraviolet Radiation Index
Relative Humidity: 56%
Relative Humidity
Precipitation: 20%
Probability of Precipitation
Snow: 0%
Snow
Cloud Coverage: 69%
Cloud Coverage
Sunrise: 6:51 AM
Sunset: 7:02 PM
 
Moonrise: 4:30 AM
Moonset: 5:40 PM
Moon Phase:  Waning Crescent
Moonphase:
Waning Crescent
Wind Direction:  SSW
Direction: SSW (192°)
Speed: 6Mph(9Km, 7Kts)
Details for Monday, September 22
Abundant sunshine. Highs in the low 80s and lows in the upper 50s.
UV Index: 6 (High)
Ultraviolet Radiation Index
Relative Humidity: 46%
Relative Humidity
Precipitation: 0%
Probability of Precipitation
Snow: 0%
Snow
Cloud Coverage: 8%
Cloud Coverage
Sunrise: 6:51 AM
Sunset: 7:00 PM
 
Moonrise: 5:25 AM
Moonset: 6:11 PM
Moon Phase:  Waning Crescent
Moonphase:
Waning Crescent
Wind Direction:  SSW
Direction: SSW (200°)
Speed: 6Mph(10Km, 7Kts)
Details for Tuesday, September 23
Sunshine. Highs in the low 80s and lows in the upper 50s.
UV Index: 6 (High)
Ultraviolet Radiation Index
Relative Humidity: 40%
Relative Humidity
Precipitation: 0%
Probability of Precipitation
Snow: 0%
Snow
Cloud Coverage: 3%
Cloud Coverage
Sunrise: 6:52 AM
Sunset: 6:59 PM
 
Moonrise: 6:22 AM
Moonset: 6:41 PM
Moon Phase:  Waning Crescent
Moonphase:
Waning Crescent
Wind Direction:  S
Direction: S (177°)
Speed: 7Mph(11Km, 8Kts)
Details for Wednesday, September 24
Abundant sunshine. Highs in the upper 70s and lows in the upper 50s.
UV Index: 6 (High)
Ultraviolet Radiation Index
Relative Humidity: 44%
Relative Humidity
Precipitation: 0%
Probability of Precipitation
Snow: 0%
Snow
Cloud Coverage: 1%
Cloud Coverage
Sunrise: 6:53 AM
Sunset: 6:57 PM
 
Moonrise: 7:18 AM
Moonset: 7:11 PM
Moon Phase:  New
Moonphase:
New
Wind Direction:  S
Direction: S (177°)
Speed: 8Mph(14Km, 10Kts)
Details for Thursday, September 25
Showers possible. Highs in the upper 60s and lows in the low 50s.
UV Index: 5 (Moderate)
Ultraviolet Radiation Index
Relative Humidity: 75%
Relative Humidity
Precipitation: 50%
Probability of Precipitation
Snow: 0%
Snow
Cloud Coverage: 62%
Cloud Coverage
Sunrise: 6:54 AM
Sunset: 6:56 PM
 
Moonrise: 8:17 AM
Moonset: 7:43 PM
Moon Phase:  Waxing Crescent
Moonphase:
Waxing Crescent
Wind Direction:  S
Direction: S (185°)
Speed: 8Mph(12Km, 9Kts)
Details for Friday, September 26
Mix of sun and clouds. Highs in the upper 60s and lows in the low 50s.
UV Index: 6 (High)
Ultraviolet Radiation Index
Relative Humidity: 61%
Relative Humidity
Precipitation: 10%
Probability of Precipitation
Snow: 0%
Snow
Cloud Coverage: 44%
Cloud Coverage
Sunrise: 6:55 AM
Sunset: 6:54 PM
 
Moonrise: 9:15 AM
Moonset: 8:18 PM
Moon Phase:  Waxing Crescent
Moonphase:
Waxing Crescent
Wind Direction:  SSW
Direction: SSW (207°)
Speed: 6Mph(10Km, 7Kts)
Details for Saturday, September 27
Sunny. Highs in the low 70s and lows in the low 50s.
UV Index: 6 (High)
Ultraviolet Radiation Index
Relative Humidity: 54%
Relative Humidity
Precipitation: 0%
Probability of Precipitation
Snow: 0%
Snow
Cloud Coverage: 7%
Cloud Coverage
Sunrise: 6:56 AM
Sunset: 6:52 PM
 
Moonrise: 10:15 AM
Moonset: 8:57 PM
Moon Phase:  Waxing Crescent
Moonphase:
Waxing Crescent
Wind Direction:  NNW
Direction: NNW (343°)
Speed: 8Mph(13Km, 9Kts)
Details for Sunday, September 28
Sunshine. Highs in the low 70s and lows in the low 50s.
UV Index: 6 (High)
Ultraviolet Radiation Index
Relative Humidity: 43%
Relative Humidity
Precipitation: 10%
Probability of Precipitation
Snow: 0%
Snow
Cloud Coverage: 7%
Cloud Coverage
Sunrise: 6:57 AM
Sunset: 6:51 PM
 
Moonrise: 11:14 AM
Moonset: 9:40 PM
Moon Phase:  Waxing Crescent
Moonphase:
Waxing Crescent
Wind Direction:  NNE
Direction: NNE (18°)
Speed: 6Mph(9Km, 7Kts)
Details for Monday, September 29
Mainly sunny. Highs in the low 70s and lows in the low 50s.
UV Index: 6 (High)
Ultraviolet Radiation Index
Relative Humidity: 40%
Relative Humidity
Precipitation: 0%
Probability of Precipitation
Snow: 0%
Snow
Cloud Coverage: 3%
Cloud Coverage
Sunrise: 6:58 AM
Sunset: 6:49 PM
 
Moonrise: 12:13 PM
Moonset: 10:30 PM
Moon Phase:  Waxing Crescent
Moonphase:
Waxing Crescent
Wind Direction:  S
Direction: S (177°)
Speed: 6Mph(10Km, 7Kts)
Daily Forecast Chart
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