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

South Twin Sister
Weather Forecast, United States

Issued: 10 am Mon 18 May Local Time
Updates in:
hr min s
Update imminent

Days 1–3 Weather Summary

Light rain (total 2mm), mostly falling on Tue night. Mild temperatures (max 9°C on Wed night, min 2°C on Mon night). Wind will be generally light.

Days 4–6 Weather Summary

Mostly dry. Very mild (max 11°C on Thu afternoon, min 5°C on Sat night). Wind will be generally light.

Monday
18
Tuesday
19
Wednesday
20
Thursday
21
Friday
22
Saturday
23
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
part cloud
rain showers
part cloud
light rain
rain showers
rain showers
rain showers
part cloud
clear
clear
clear
clear
clear
clear
part cloud
clear
part cloud
part cloud
some clouds
rain shwrs
some clouds
light rain
rain shwrs
rain shwrs
rain shwrs
some clouds
clear
clear
clear
clear
clear
clear
some clouds
clear
some clouds
some clouds
km/h
5
SW
10
WSW
10
SSW
5
WSW
5
W
5
NW
5
NNW
5
NW
0
NNW
0
SW
10
WSW
5
W
5
W
5
WSW
10
WSW
10
SW
10
WSW
10
SW
Snow map
Snow map
Snow map
Snow map
Snow map
Snow map
0.1
0.3
1.1
0.8
0.1
max °C
3
4
4
2
3
3
4
8
9
9
11
10
8
11
11
8
8
7
min °C
3
4
2
2
2
3
3
7
8
9
11
9
8
11
9
7
8
5
1
2
-1
0
0
2
3
6
8
9
10
9
8
11
8
5
6
2
1950
2150
2050
1900
2000
2400
2500
2900
3100
3050
3100
3000
3200
3400
3250
2900
2800
2450
Cloud base (m)
2000
2250
2000
600
650
2050
850
1700
6500
4950
8800
8950
6600
6500
6650
5000
Sea lvl1000m2000m3000m4000m5000m
-20-1-2-1124557657745334323348991110811108861013109109121613161914161915151711
Sunrise
5:22
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: Light rain (total 2mm), mostly falling on Tue night. Mild temperatures (max 9°C on Wed night, 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 Thu afternoon, min 5°C on Sat night). 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.
2 hours ago
14° C
Dry
Wind obs. (8 kph from 242 degs) was rejected.
25 km WSW
198m alt.
2 hours ago
-
0
Calm
(0 kph at 0).
0
26 km NW
125m alt.
2 hours ago
18° C
Dry
Wind obs. (11 kph from 179 degs) was rejected.
28 km NW
152m alt.
52 minutes ago
17° C
Dry
2
Calm
(2 kph at 58).
10
30 km WSW
130m alt.
2 hours ago
17° C
Dry
Wind obs. (6 kph from 220 degs) was rejected.
35 km WNW
19m alt.
2 hours ago
17° C
Dry
2
Calm
(2 kph at 0).
11
35 km WSW
100m alt.
1 hour ago
14° C
Dry
5
Calm
(5 kph at 235).
14
39 km W
35m alt.
1 hour ago
14° C
Dry
Wind obs. (6 kph from 155 degs) was rejected.
39 km W
35m alt.
1 hour ago
14° C
Dry
13
Light winds from the S
(13 kph at 180).
26
41 km W
54m alt.
44 minutes ago
14° C
Dry
5
Calm
(5 kph at 150).
16

* 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.