Mountain resort image

South Twin Sister
Weather Forecast, United States

 

South Twin Sister Weather (Days 0-3):

Light rain (total 5mm), mostly falling on Wed afternoon. Mild temperatures (max 7°C on Wed afternoon, min 5°C on Wed morning). Wind will be generally light.

(Days 3-6):

Heavy rain (total 50mm), heaviest during Sun morning. Mild temperatures (max 8°C on Sat afternoon, min 2°C on Sun night). Winds decreasing (strong winds from the SSE on Sat night, light winds from the S by Mon night).

AM PM night AM PM night AM PM night AM PM night AM PM night AM PM night
partially cloudy
rain showers
rain showers
clear
partially cloudy
cloudy
cloudy
rain showers
partially cloudy
partially cloudy
rain showers
heavy rain
heavy rain
rain showers
partially cloudy
cloudy
light rain
light rain
Wind km/h
5 N5
10 NW10
5 NNW5
5 NW5
5 W5
5 WSW5
5 SSW5
10 W10
10 WSW10
5 SW5
10 SSW10
40 S40
20 WSW20
15 WSW15
5 SW5
10 SW10
5 SSW5
10 S10
some clouds rain shwrs rain shwrs clear some clouds cloudy cloudy rain shwrs some clouds some clouds rain shwrs heavy rain heavy rain rain shwrs some clouds cloudy light rain light rain
Rain
Rain mm
- 2 1 - - - - 2 - - 1 17 26 3 - - 1 2
Snow
Snow cm
- - - - - - - - - - - - - - - - - -
High °C
6 7 7 7 7 7 6 7 7 7 8 8 6 4 4 3 3 7
Low °C
5 7 7 7 7 6 6 7 7 7 7 6 5 4 2 2 3 4
Chill °C
6 6 6 6 6 6 6 6 5 5 6 5 4 1 1 1 1 4
Freezing level m
2300 2600 2650 2750 2800 2700 3000 3200 3600 3100 2900 2850 2350 2150 2000 2450 2600 3200
Sea lvl3000ft6000ft9000ft12000ft15000ft
mountain backdrop
13334434555420011567777767778864433713151214151313141313151412119101010
Sunrise
6:48 - - 6:50 - - 6:50 - - 6:52 - - 6:54 - - 6:54 - -
Sunset
- 7:14 - - 7:12 - - 7:09 - - 7:07 - - 7:06 - - 7:02 -

South Twin Sister Weather (Days 0-3):

The weather forecast for South Twin Sister is: Light rain (total 5mm), mostly falling on Wed afternoonMild temperatures (max 7°C on Wed afternoon, min 5°C on Wed morning)Wind will be generally light.

South Twin Sister Weather (Days 3-6):

Heavy rain (total 50mm), heaviest during Sun morningMild temperatures (max 8°C on Sat afternoon, min 2°C on Sun night)Winds decreasing (strong winds from the SSE on Sat night, light winds from the S by Mon night).

Issued local time.

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 5 closest weather stations

Weather StationTemp.WeatherWind
Cloud
Visibility
Cloud / Visibility
Lyman
19 km S
155m alt.
2 hours ago
18° C
Dry
0
Calm
(0 kph at 17).
Bellingham
25 km WSW
198m alt.
3 hours ago
16° C
Dry
0
Calm
(0 kph at 315).
Deming
25 km WNW
102m alt.
2 hours ago
19° C
Dry
2
Calm
(2 kph at 269).
Bellingham
27 km WSW
99m alt.
2 hours ago
16° C
Dry
11
Light winds from the WNW
(11 kph at 285).
Bellingham
30 km WSW
130m alt.
2 hours ago
16° C
-
Wind obs. (6 kph from 243 degs) was rejected
.

* 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. We also include passing Ship data if it is recorded close to South Twin Sister and within an acceptable time window.