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

South Twin Sister
Weather Forecast, United States

Issued: 4 pm Mon 18 May Local Time
Updates in:
hr min s
Update imminent

Days 1–4 Weather Summary

Some drizzle, heaviest during Tue afternoon. Mild temperatures (max 9°C on Thu morning, min 2°C on Mon night). Wind will be generally light.

Days 5–7 Weather Summary

Mostly dry. Very mild (max 11°C on Fri afternoon, min 6°C on Sun morning). Wind will be generally light.

Mon
18
Tuesday
19
Wednesday
20
Thursday
21
Friday
22
Saturday
23
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
rain showers
part cloud
light rain
rain showers
rain showers
part cloud
part cloud
part cloud
clear
clear
clear
clear
clear
part cloud
part cloud
clear
clear
rain shwrs
some clouds
light rain
rain shwrs
rain shwrs
some clouds
some clouds
some clouds
clear
clear
clear
clear
clear
some clouds
some clouds
clear
clear
km/h
10
WSW
15
SSW
5
WSW
5
W
0
NNW
5
NNW
5
NW
0
NNW
0
SW
10
W
5
W
5
WNW
5
W
5
W
5
WNW
10
WSW
15
SW
Snow map
Snow map
Snow map
Snow map
Snow map
Snow map
0.1
0.2
0.8
0.4
max °C
5
4
2
3
3
4
7
8
9
10
10
9
11
11
8
10
9
min °C
4
2
2
3
3
3
6
8
8
10
9
8
11
10
8
10
7
2
-1
0
1
2
3
5
8
8
9
8
8
11
9
7
9
4
2150
2050
1900
2000
2450
2500
2850
3200
3050
3150
3200
3350
3550
3350
3050
3300
2900
Cloud base (m)
2650
1950
750
600
950
950
1800
6650
5150
8850
8850
8500
8600
8400
Sea lvl1000m2000m3000m4000m5000m
0-1-1-11245566687575532334789101091111810813109109121612161914162015151912
Sunrise
5:22
5:20
5:18
5:18
5:16
Sunset
8:45
8:46
8:47
8:50
8:51
8:52

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South Twin Sister Weather (Days 0-3):

The weather forecast for South Twin Sister is: Some drizzle, heaviest during Tue afternoon. Mild temperatures (max 9°C on Thu morning, min 2°C on Mon night). Wind will be generally light.

South Twin Sister Weather (Days 3-6):

Mostly dry. Very mild (max 11°C on Fri afternoon, min 6°C on Sun 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.
1 hour ago
17° C
Dry
Wind obs. (8 kph from 275 degs) was rejected.
25 km WSW
198m alt.
1 hour ago
-
0
Calm
(0 kph at 0).
0
26 km NW
125m alt.
2 hours ago
19° C
Dry
5
Calm
(5 kph at 239).
6
28 km NW
152m alt.
1 hour ago
17° C
Dry
0
Calm
(0 kph at 76).
3
30 km WSW
130m alt.
1 hour ago
17° C
Dry
0
Calm
(0 kph at 205).
8
35 km WNW
19m alt.
1 hour ago
18° C
Dry
0
Calm
(0 kph at 0).
6
35 km WSW
100m alt.
1 hour ago
16° C
Dry
3
Calm
(3 kph at 161).
8
39 km W
35m alt.
55 minutes ago
16° C
Dry
3
Calm
(3 kph at 269).
10
39 km W
35m alt.
47 minutes ago
15° C
Dry
5
Calm
(5 kph at 211).
13
41 km W
54m alt.
1 hour ago
14° C
Dry
3
Calm
(3 kph at 178).
8

* 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.