Grenville, South Dakota
Current Conditions -  °F | °C
As of 1:44 AM on Friday 25 Jul 2014 (Local Time) from KATY Reporting Station
Thunderstorm Thunderstorm  
Wind Chill: 68°   Ceiling: 9000
Heat Index: 68°   Visibility: 10mi
Dew Point: 62°   Wind: 22mph
Humidity: 81%   Direction: 200°SSW
Pressure: 29.78"   Gusts: 26mph
Location:  45.47°N, 97.39°W
Report Text: KATY 250644Z AUTO 20019G23KT 10SM TS FEW041 SCT065 BKN090 20/17 A2978 RMK AO2 LTG DSNT SW-N TSB44 PRESRR T02000167
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Personal Weather Stations






























Hourly Forecast -  °F | °C
Hi 78° - Lo 64°
2 AM
Iso T-Storms
Iso T-Storms
68°
3 AM
Iso T-Storms
Iso T-Storms
68°
4 AM
Iso T-Storms
Iso T-Storms
66°
5 AM
Iso T-Storms
Iso T-Storms
65°
6 AM
Iso T-Storms
Iso T-Storms
65°
7 AM
Iso T-Storms
Iso T-Storms
65°
Weather Maps
Daily Forecast -  °F | °C
thu fri sat sun mon tue wed thu fri sat
jul
24
Iso T-Storms
Iso T-Storms
78°
64°
jul
25
Iso T-Storms
Iso T-Storms
85°
59°
jul
26
Sunny/Wind
Sunny/Wind
85°
58°
jul
27
P Cloudy
P Cloudy
71°
54°
jul
28
P Cloudy
P Cloudy
73°
53°
jul
29
P Cloudy
P Cloudy
76°
55°
jul
30
P Cloudy
P Cloudy
79°
57°
jul
31
P Cloudy
P Cloudy
80°
56°
aug
01
M Sunny
M Sunny
80°
57°
aug
02
Sunny
Sunny
81°
58°
Details for Thursday, July 24 (Evening)
Evening: Partly cloudy with isolated thunderstorms possible. A few storms may be severe. Low 64F. Winds SE at 10 to 20 mph. Chance of rain 30%.
UV Index: 8 (Very High)
Ultraviolet Radiation Index
Relative Humidity: 81%
Relative Humidity
Precipitation: 30%
Probability of Precipitation
Snow: 0%
Snow
Cloud Coverage: 50%
Cloud Coverage
Sunrise: 6:05 AM
Sunset: 9:06 PM
 
Moonrise: 4:15 AM
Moonset: 7:21 PM
Moon Phase:  Waning Crescent
Moonphase:
Waning Crescent
Wind Direction:  SE
Direction: SE (134°)
Speed: 16Mph(25Km, 13Kts)
Details for Friday, July 25
Partly cloudy with a slight chance of showers and thunderstorms, mainly during the morning hours. High around 85F. Winds N at 10 to 15 mph. Chance of rain 30%.
Evening: A mostly clear sky. Low 59F. Winds W at 5 to 10 mph.
UV Index: 8 (Very High)
Ultraviolet Radiation Index
Relative Humidity: 64%
Relative Humidity
Precipitation: 30%
Probability of Precipitation
Snow: 0%
Snow
Cloud Coverage: 25%
Cloud Coverage
Sunrise: 6:06 AM
Sunset: 9:05 PM
 
Moonrise: 5:08 AM
Moonset: 8:00 PM
Moon Phase:  Waning Crescent
Moonphase:
Waning Crescent
Wind Direction:  N
Direction: N (350°)
Speed: 11Mph(18Km, 9Kts)
Details for Saturday, July 26
Mainly sunny and windy. Highs in the mid 80s and lows in the upper 50s.
UV Index: 8 (Very High)
Ultraviolet Radiation Index
Relative Humidity: 48%
Relative Humidity
Precipitation: 0%
Probability of Precipitation
Snow: 0%
Snow
Cloud Coverage: 5%
Cloud Coverage
Sunrise: 6:07 AM
Sunset: 9:04 PM
 
Moonrise: 6:04 AM
Moonset: 8:35 PM
Moon Phase:  Waning Crescent
Moonphase:
Waning Crescent
Wind Direction:  WSW
Direction: WSW (257°)
Speed: 20Mph(32Km, 17Kts)
Details for Sunday, July 27
Mix of sun and clouds. Highs in the low 70s and lows in the mid 50s.
UV Index: 8 (Very High)
Ultraviolet Radiation Index
Relative Humidity: 62%
Relative Humidity
Precipitation: 20%
Probability of Precipitation
Snow: 0%
Snow
Cloud Coverage: 43%
Cloud Coverage
Sunrise: 6:08 AM
Sunset: 9:03 PM
 
Moonrise: 7:01 AM
Moonset: 9:07 PM
Moon Phase:  New
Moonphase:
New
Wind Direction:  NNW
Direction: NNW (330°)
Speed: 19Mph(31Km, 16Kts)
Details for Monday, July 28
Times 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: 58%
Relative Humidity
Precipitation: 0%
Probability of Precipitation
Snow: 0%
Snow
Cloud Coverage: 44%
Cloud Coverage
Sunrise: 6:09 AM
Sunset: 9:02 PM
 
Moonrise: 8:00 AM
Moonset: 9:35 PM
Moon Phase:  Waxing Crescent
Moonphase:
Waxing Crescent
Wind Direction:  NNW
Direction: NNW (343°)
Speed: 8Mph(13Km, 7Kts)
Details for Tuesday, July 29
Times of sun and clouds. Highs in the mid 70s and lows in the mid 50s.
UV Index: 8 (Very High)
Ultraviolet Radiation Index
Relative Humidity: 57%
Relative Humidity
Precipitation: 10%
Probability of Precipitation
Snow: 0%
Snow
Cloud Coverage: 33%
Cloud Coverage
Sunrise: 6:10 AM
Sunset: 9:01 PM
 
Moonrise: 8:58 AM
Moonset: 10:02 PM
Moon Phase:  Waxing Crescent
Moonphase:
Waxing Crescent
Wind Direction:  WNW
Direction: WNW (300°)
Speed: 6Mph(10Km, 5Kts)
Details for Wednesday, July 30
Partly cloudy. Highs in the upper 70s and lows in the upper 50s.
UV Index: 8 (Very High)
Ultraviolet Radiation Index
Relative Humidity: 54%
Relative Humidity
Precipitation: 40%
Probability of Precipitation
Snow: 0%
Snow
Cloud Coverage: 32%
Cloud Coverage
Sunrise: 6:11 AM
Sunset: 9:00 PM
 
Moonrise: 9:57 AM
Moonset: 10:28 PM
Moon Phase:  Waxing Crescent
Moonphase:
Waxing Crescent
Wind Direction:  WNW
Direction: WNW (298°)
Speed: 7Mph(12Km, 6Kts)
Details for Thursday, July 31
Mix of sun and clouds. Highs in the low 80s and lows in the mid 50s.
UV Index: 8 (Very High)
Ultraviolet Radiation Index
Relative Humidity: 54%
Relative Humidity
Precipitation: 20%
Probability of Precipitation
Snow: 0%
Snow
Cloud Coverage: 24%
Cloud Coverage
Sunrise: 6:12 AM
Sunset: 8:58 PM
 
Moonrise: 10:57 AM
Moonset: 10:55 PM
Moon Phase:  Waxing Crescent
Moonphase:
Waxing Crescent
Wind Direction:  N
Direction: N (356°)
Speed: 7Mph(12Km, 6Kts)
Details for Friday, August 01
A few clouds. Highs in the low 80s and lows in the upper 50s.
UV Index: 8 (Very High)
Ultraviolet Radiation Index
Relative Humidity: 61%
Relative Humidity
Precipitation: 10%
Probability of Precipitation
Snow: 0%
Snow
Cloud Coverage: 16%
Cloud Coverage
Sunrise: 6:13 AM
Sunset: 8:57 PM
 
Moonrise: 11:57 AM
Moonset: 11:22 PM
Moon Phase:  Waxing Crescent
Moonphase:
Waxing Crescent
Wind Direction:  W
Direction: W (259°)
Speed: 7Mph(12Km, 6Kts)
Details for Saturday, August 02
Mainly sunny. Highs in the low 80s and lows in the upper 50s.
UV Index: 8 (Very High)
Ultraviolet Radiation Index
Relative Humidity: 59%
Relative Humidity
Precipitation: 10%
Probability of Precipitation
Snow: 0%
Snow
Cloud Coverage: 4%
Cloud Coverage
Sunrise: 6:15 AM
Sunset: 8:56 PM
 
Moonrise: 12:58 PM
Moonset: 11:53 PM
Moon Phase:  Waxing Crescent
Moonphase:
Waxing Crescent
Wind Direction:  S
Direction: S (178°)
Speed: 7Mph(12Km, 6Kts)
Daily Forecast Chart
Chart.
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