Sa a button
Forecasts:


Mtnlogo 130

South Twin Sister, United States Weather Forecast

Weather Forecast Issued (local time): 10 am Sunday 22 Oct 2017
  Days 0-3 South Twin Sister Weather Summary: A moderate fall of snow, heaviest on Sun morning. Freeze-thaw conditions (max 10°C on Tue afternoon, min -4°C on Sun morning). Winds decreasing (near gales from the W on Sun morning, light winds from the W by Mon night). Days 3-6 South Twin Sister Weather Summary: Light rain (total 6mm), mostly falling on Wed morning. Very mild (max 13°C on Fri morning, min 3°C on Wed afternoon). Winds decreasing (strong winds from the W on Wed morning, calm by Fri night).
Sunday 22 Monday 23 Tuesday 24 Wednesday 25 Thursday 26 Friday 27
AM PM night AM PM night AM PM night AM PM night AM PM night AM PM night
See all weather maps
T washington.wind.12.cc23
T washington.wind.36.cc23
T washington.wind.60.cc23
T washington.wind.84.cc23
T washington.wind.108.cc23
T washington.wind.132.cc23
 
moderate snow
snow showers
partially cloudy
partially cloudy
cloudy
partially cloudy
clear
clear
clear
rain showers
light rain
clear
clear
clear
clear
clear
clear
clear
Wind
km/h
55 W55
45 WSW45
20 W20
15 W15
15 W15
10 WNW10
10 W10
15 W15
30 WSW30
40 W40
15 WNW15
10 NNE10
10 NNE10
10 NE10
10 ENE10
10 E10
5 E5
0 SSE0
Summary mod. snow snow shwrs some clouds some clouds cloudy some clouds clear clear clear rain shwrs light rain clear clear clear clear clear clear clear
Snow cm 8 5 - - - - - - - - - - - - - - - -
Rain mm - - - - - - - - - 4 2 - - - - - - -
High °C -4 -3 -1 1 3 8 9 10 10 5 3 6 8 10 12 13 13 13
Low °C -4 -4 -3 0 2 5 8 10 7 4 3 4 7 9 11 13 12 12
Chill °C -14 -12 -6 -4 0 6 7 8 8 -1 -2 4 7 9 11 12 13 13
Freezing level m 1550 1700 1800 2450 2800 3850 4050 4100 3750 3250 2850 3750 4150 4350 4450 4550 4550 4450
South Twin Sister freezing level scale
mountain backdrop South Twin Sister freezing level
Sunrise 7:37 - - 7:39 - - 7:41 - - 7:43 - - 7:43 - - 7:46 - -
Sunset - 6:05 - - 6:02 - - 6:00 - - 5:59 - - 5:58 - - 5:55 -

This table gives the weather forecast for South Twin Sister at the specific elevation of 2134 m. Our advanced weather models allow us to provide distinct weather forecasts for several elevations of South Twin Sister. To see the weather forecasts for the other elevations, use the tab navigation above the table. For a wider overview of the weather, consult the Weather Map of Washington.