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

UsSouth Twin Sister
Weather Forecast, United States

Placeholder
Issued: 10 am Thu 18 Jul Local Time
Updates in:
hr min s
Update imminent

Days 1–3 Weather Summary

Mostly dry. Warm (max 20°C on Sat night, min 10°C on Fri morning). Wind will be generally light.

Days 4–6 Weather Summary

Mostly dry. Very mild (max 19°C on Sun morning, min 4°C on Mon night). Wind will be generally light.

Thursday
18
Friday
19
Saturday
20
Sunday
21
Monday
22
Tuesday
23
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
cloud
rain showers
rain showers
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
cloudy
rain shwrs
rain shwrs
clear
clear
clear
clear
clear
 km/h
5
SSE
10
S
15
S
10
SSW
5
SSW
0
NNW
5
SSE
10
SSE
10
S
5
SE
5
WSW
15
S
20
S
20
SSW
15
SW
15
SW
15
SW
10
SW
Wave Height Map
T washington.wind.9.cc23
T washington.wind.33.cc23
T washington.wind.57.cc23
T washington.wind.81.cc23
T washington.wind.105.cc23
T washington.wind.129.cc23
 cm 
 mm 
0.1
0.1
max°C
13
14
14
10
13
14
15
18
20
19
19
18
13
12
10
5
7
7
min°C
13
14
11
10
11
13
14
17
19
18
17
14
12
12
4
4
7
6
chill°C 
13
14
9
8
10
13
14
17
19
18
17
13
10
10
0
0
4
4
Freezing level (m
4350
4450
4250
3900
4250
4650
4800
4950
4950
4900
4900
4950
4800
4500
3600
3600
3750
3700
Cloud base (m)
9400
5300
5600
4900
5200
800
Sea lvl1000m2000m3000m4000m5000m
13141310121415182019181613127577161816131717172124222218131396109222619202520233025262720192214141914
Sunrise
5:24
5:26
5:26
5:28
5:28
5:31
Sunset
9:01
9:00
9:00
8:59
8:58
8:57

South Twin Sister Weather (Days 0-3):

The weather forecast for South Twin Sister is: Mostly dry. Warm (max 20°C on Sat night, min 10°C on Fri morning). Wind will be generally light.

South Twin Sister Weather (Days 3-6):

Mostly dry. Very mild (max 19°C on Sun morning, min 4°C on Mon 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 5 closest weather stations

Weather StationTemp.WeatherWindGusts
Cloud
Visibility
Cloud / Visibility
22 km WSW
94m alt.
1 hour ago
24° C
Dry
14
Light winds from the SW
(14 kph at 234).
19
25 km WNW
102m alt.
1 hour ago
28° C
Dry
0
Calm
(0 kph at 117).
5
25 km WSW
198m alt.
3 hours ago
25° C
Dry
2
Calm
(2 kph at 83).
3
26 km NW
125m alt.
2 hours ago
28° C
Dry
5
Calm
(5 kph at 12).
13
27 km WSW
99m alt.
1 hour ago
24° C
Dry
3
Calm
(3 kph at 295).
8
28 km NW
152m alt.
1 hour ago
27° C
Dry
Wind obs. (6 kph from 3 degs) was rejected.
30 km WSW
130m alt.
1 hour ago
26° C
Dry
0
Calm
(0 kph at 26).
10
34 km SW
7m alt.
1 hour ago
21° C
Dry
Wind obs. (6 kph from 329 degs) was rejected.
35 km WNW
19m alt.
1 hour ago
27° C
Dry
3
Calm
(3 kph at 211).
10
35 km WSW
100m alt.
45 minutes ago
27° C
Dry
3
Calm
(3 kph at 179).
10

* 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.