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

South Twin Sister
Weather Forecast, United States

Issued: 4 pm Thu 25 Jun Local Time
Updates in:
hr min s
Update imminent

Days 1–4 Weather Summary

Mild at first with light rain (total 5mm) on Thu night followed by colder weather and light fall of snow, heaviest on Fri night. Freeze-thaw conditions (max 4°C on Thu afternoon, min 0°C on Fri night). Winds decreasing (fresh winds from the S on Thu afternoon, calm by Fri night).

Days 5–7 Weather Summary

Drizzle at first, then turning colder with dusting of snow on Tue morning. Mild temperatures (max 5°C on Mon afternoon, min 1°C on Tue night). Wind will be generally light.

Thu
25
Friday
26
Saturday
27
Sunday
28
Monday
29
Tuesday
30
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
light rain
light rain
light snow
light snow
mod snow
light snow
rain showers
rain showers
part cloud
light rain
rain showers
light rain
light rain
rain showers
light snow
cloud
cloud
light rain
light rain
light snow
light snow
mod. snow
light snow
rain shwrs
rain shwrs
some clouds
light rain
rain shwrs
light rain
light rain
rain shwrs
light snow
cloudy
cloudy
km/h
30
S
25
S
25
S
25
SSW
10
SSW
10
NNE
5
N
5
N
10
NNW
10
NW
10
N
5
N
10
W
10
WNW
5
SW
5
SSW
0
SW
Weather map
Weather map
Weather map
Weather map
Weather map
Weather map
Snowflake cm
1
2
8
1
1
 mm
0.2
3
1.5
0.2
0.1
0.3
0.2
0.1
0.4
0.3
max °C
4
4
2
2
1
0
2
3
3
4
4
4
5
4
2
2
2
min °C
3
2
2
2
0
0
1
3
3
3
4
4
4
2
2
2
1
 chill °C
-3
-3
-2
-4
0
-3
-1
0
0
0
2
2
2
-1
1
1
1
Freezing level m
2600
2750
2400
2450
2250
2200
2600
2900
3100
3250
3400
3500
3350
2750
2500
2500
2300
Cloud base (m)
1900
550
550
650
550
550
600
2550
1550
800
700
550
600
850
550
550
550
Sea lvl1000m2000m3000m4000m5000m
43221023344453222875553565666665551613121311101212121412121312111111
Sunrise
5:05
5:05
5:07
5:07
5:07
Sunset
9:14
9:14
9:14
9:14
9:14
9:14

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South Twin Sister Weather (Days 0-3):

The weather forecast for South Twin Sister is: Mild at first with light rain (total 5mm) on Thu night followed by colder weather and light fall of snow, heaviest on Fri night. Freeze-thaw conditions (max 4°C on Thu afternoon, min 0°C on Fri night). Winds decreasing (fresh winds from the S on Thu afternoon, calm by Fri night).

South Twin Sister Weather (Days 3-6):

Drizzle at first, then turning colder with dusting of snow on Tue morning. Mild temperatures (max 5°C on Mon afternoon, min 1°C on Tue 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.
1 hour ago
19° C
Dry
0
Calm
(0 kph at 221).
13
25 km WSW
198m alt.
1 hour ago
19° C
Dry
0
Calm
(0 kph at 135).
0
26 km NW
125m alt.
2 hours ago
20° C
Dry
5
Calm
(5 kph at 240).
8
28 km NW
152m alt.
1 hour ago
20° C
Dry
2
Calm
(2 kph at 42).
2
30 km WSW
130m alt.
1 hour ago
17° C
Dry
0
Calm
(0 kph at 226).
0
35 km WNW
19m alt.
1 hour ago
20° C
Dry
0
Calm
(0 kph at 0).
2
35 km WSW
100m alt.
1 hour ago
16° C
Dry
0
Calm
(0 kph at 223).
13
38 km S
115m alt.
1 hour ago
17° C
Dry
2
Calm
(2 kph at 120).
5
SHIP8027
40 km SW
15m alt.
3 hours ago
- km
SHIP3477
40 km SW
15m alt.
3 hours ago
- 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.