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

South Twin Sister
Weather Forecast, United States

Issued: 4 am Fri 29 May Local Time
Updates in:
hr min s
Update imminent

Days 1–3 Weather Summary

A dusting of new snow. Freeze-thaw conditions (max 3°C on Sun afternoon, min -4°C on Sat morning). Wind will be generally light.

Days 4–6 Weather Summary

Drizzle at first, then turning colder with dusting of snow on Wed night. Freeze-thaw conditions (max 8°C on Tue night, min 0°C on Wed night). Wind will be generally light.

Friday
29
Saturday
30
Sunday
31
Monday
1
Tuesday
2
Wednesday
3
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
light snow
part cloud
clear
cloud
part cloud
clear
clear
part cloud
part cloud
part cloud
rain showers
part cloud
rain showers
rain showers
part cloud
light rain
light rain
light snow
light snow
some clouds
clear
cloudy
some clouds
clear
clear
some clouds
some clouds
some clouds
rain shwrs
some clouds
rain shwrs
rain shwrs
some clouds
light rain
light rain
light snow
km/h
15
WSW
15
WSW
5
WSW
5
W
10
WNW
10
NW
10
NNW
10
N
10
NE
5
NE
0
E
5
SSW
5
WNW
0
WSW
10
S
15
SSE
10
SSW
10
NNW
Snow map
Snow map
Snow map
Snow map
Snow map
Snow map
1
1
0.6
0.1
0.6
0.1
0.1
max °C
2
0
-1
-3
-1
-1
0
3
3
4
5
6
6
7
8
5
2
1
min °C
0
-1
-3
-4
-2
-1
-1
2
3
3
5
5
5
7
6
3
1
0
-4
-6
-5
-6
-5
-4
-5
-1
0
1
5
5
5
7
3
0
-2
-2
2300
2100
1600
1400
1950
1950
2250
2650
2650
2700
2850
2850
2850
3050
3100
2700
2300
2200
Cloud base (m)
600
2150
650
800
8950
1850
2000
7000
3150
2100
3400
3150
2500
2600
1750
600
Sea lvl1000m2000m3000m4000m5000m
1-1-2-4-2-1-133456677421331-212267810111013118539117610810151115181518211715129
Sunrise
5:11
5:11
5:09
5:09
5:09
5:07
Sunset
8:59
9:00
9:00
9:01
9:02
9:04

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South Twin Sister Weather (Days 0-3):

The weather forecast for South Twin Sister is: A dusting of new snow. Freeze-thaw conditions (max 3°C on Sun afternoon, min -4°C on Sat morning). Wind will be generally light.

South Twin Sister Weather (Days 3-6):

Drizzle at first, then turning colder with dusting of snow on Wed night. Freeze-thaw conditions (max 8°C on Tue night, min 0°C on Wed night). Wind will be generally light.

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.

Live conditions reported by 10 closest weather stations

Weather StationTemp.WeatherWindGusts
Cloud
Visibility
Cloud / Visibility
22 km WSW
94m alt.
53 minutes ago
11° C
Dry
2
Calm
(2 kph at 54).
10
25 km WSW
198m alt.
1 hour ago
-
0
Calm
(0 kph at 0).
0
26 km NW
125m alt.
1 hour ago
11° C
Dry
14
Light winds from the S
(14 kph at 170).
19
28 km NW
152m alt.
1 hour ago
11° C
Dry
8
Light winds from the SSW
(8 kph at 212).
21
30 km WSW
130m alt.
51 minutes ago
11° C
Dry
Wind obs. (8 kph from 137 degs) was rejected.
35 km WNW
19m alt.
1 hour ago
12° C
Dry
2
Calm
(2 kph at 162).
8
35 km WSW
100m alt.
55 minutes ago
12° C
Dry
3
Calm
(3 kph at 222).
18
SHIP6560
38 km WSW
3m alt.
2 hours ago
12° C
41
Strong winds from the S
(41 kph at 170).
SHIP6565
38 km WSW
15m alt.
2 hours ago
22
Moderate winds from the SE
(23 kph at 140).
- km
SHIP3812
38 km WSW
15m alt.
1 hour ago
22
Moderate winds from the SSE
(23 kph at 150).
- km

* 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.