Mountain resort image
– Lat/Long: 48.71° N 121.99° W

South Twin Sister
Weather Forecast, United States

Issued: 10 am Sun 17 May Local Time
Updates in:
hr min s
Update imminent

Days 1–3 Weather Summary

Some drizzle, heaviest during Tue night. Freeze-thaw conditions (max 4°C on Sun afternoon, min -1°C on Sun morning). Wind will be generally light.

Days 4–6 Weather Summary

Mostly dry. Mild temperatures (max 9°C on Thu afternoon, min 3°C on Wed morning). Wind will be generally light.

Sunday
17
Monday
18
Tuesday
19
Wednesday
20
Thursday
21
Friday
22
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
part cloud
rain showers
part cloud
part cloud
part cloud
part cloud
light rain
light rain
rain showers
rain showers
part cloud
part cloud
clear
clear
clear
clear
rain showers
cloud
some clouds
rain shwrs
some clouds
some clouds
some clouds
some clouds
light rain
light rain
rain shwrs
rain shwrs
some clouds
some clouds
clear
clear
clear
clear
rain shwrs
cloudy
km/h
5
NNW
5
WNW
10
WSW
5
SW
10
WSW
10
SW
5
SW
5
WSW
5
WNW
5
NNW
5
NW
5
W
5
WNW
10
WNW
5
W
5
W
10
WSW
15
SW
Snow map
Snow map
Snow map
Snow map
Snow map
Snow map
0.1
0.1
0.5
0.5
0.1
0.1
max °C
1
4
4
2
4
4
2
3
3
4
7
7
7
9
9
7
8
8
min °C
-1
4
3
2
4
3
2
3
3
3
5
7
7
9
7
6
8
4
-4
2
1
0
2
0
0
1
2
3
4
6
6
7
6
6
6
0
1750
2100
2050
1900
2100
2100
1950
2050
2250
2650
3050
3200
2950
2850
2950
3100
3000
2800
Cloud base (m)
900
1650
2400
2100
1950
700
600
800
1600
1500
6200
3150
2850
2500
900
1700
1900
Sea lvl1000m2000m3000m4000m5000m
-30-1-10-1-1-1123545545304424423346779878681291013109109111412141813141712
Sunrise
5:24
5:22
5:22
5:20
5:18
5:18
Sunset
8:44
8:45
8:46
8:47
8:50
8:51

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South Twin Sister Weather (Days 0-3):

The weather forecast for South Twin Sister is: Some drizzle, heaviest during Tue night. Freeze-thaw conditions (max 4°C on Sun afternoon, min -1°C on Sun morning). Wind will be generally light.

South Twin Sister Weather (Days 3-6):

Mostly dry. Mild temperatures (max 9°C on Thu afternoon, min 3°C on Wed morning). Wind will be generally light.

This table gives the weather forecast for South Twin Sister at the specific elevation of 1500 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.

Live conditions reported by 10 closest weather stations

Weather StationTemp.WeatherWindGusts
Cloud
Visibility
Cloud / Visibility
22 km WSW
94m alt.
58 minutes ago
16° C
Dry
6
Light winds from the W
(6 kph at 264).
11
25 km WSW
198m alt.
1 hour ago
-
0
Calm
(0 kph at 0).
0
26 km NW
125m alt.
46 minutes ago
20° C
Dry
6
Light winds from the SW
(6 kph at 235).
8
27 km WSW
99m alt.
1 hour ago
16° C
Dry
0
Calm
(0 kph at 232).
0
28 km NW
152m alt.
1 hour ago
19° C
Dry
Wind obs. (8 kph from 358 degs) was rejected.
30 km WSW
130m alt.
46 minutes ago
19° C
Dry
3
Calm
(3 kph at 207).
13
35 km WNW
19m alt.
1 hour ago
19° C
Dry
2
Calm
(2 kph at 0).
8
35 km WSW
100m alt.
1 hour ago
17° C
Dry
3
Calm
(3 kph at 294).
11
39 km W
35m alt.
55 minutes ago
17° C
Dry
6
Light winds from the SW
(6 kph at 221).
16
39 km W
35m alt.
3 hours ago
15° C
Dry
5
Calm
(5 kph at 207).
14

* NOTE: not all weather observatories update at the same frequency which is the reason why some locations may show data from stations that are further away than known closer ones.