South Twin Sister
Weather Forecast, United States

 

Days 0-3 South Twin Sister Weather Summary:

Some drizzle, heaviest during Thu night. Very mild (max 16°C on Tue night, min 4°C on Thu night). Wind will be generally light.

Days 3-6 South Twin Sister Weather Summary:

Heavy rain (total 28mm), heaviest during Sun afternoon. Temperatures will be slightly above freezing (max 4°C on Fri morning, min 2°C on Sat morning). Wind will be generally light.

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
partially cloudy
rain showers
light rain
light rain
rain showers
light rain
light rain
rain showers
light rain
light rain
light rain
Wind km/h
5 NE5
5 NW5
5 W5
10 WSW10
15 WSW15
15 WSW15
15 SW15
15 WSW15
10 WNW10
5 WNW5
10 W10
10 W10
10 WNW10
10 W10
10 W10
10 W10
10 WSW10
5 WNW5
clear clear clear clear clear clear clear some clouds rain shwrs light rain light rain rain shwrs light rain light rain rain shwrs light rain light rain light rain
Rain
Rain mm
- - - - - - - - 1 2 3 6 3 3 2 1 5 3
Snow
Snow cm
- - - - - - - - - - - - - - - - - -
High °C
14 15 16 14 14 14 8 8 6 4 4 4 3 3 3 3 3 3
Low °C
13 15 15 14 14 10 8 7 4 4 4 3 2 3 3 2 3 2
Chill °C
14 15 16 14 13 13 5 5 3 2 1 1 -1 0 1 0 0 0
Freezing level m
4450 4550 4600 4450 4350 4100 3600 3400 3150 3050 2800 2850 2600 2650 2800 2500 2650 2500
Sea lvl3000ft6000ft9000ft12000ft15000ft
mountain backdrop
141516141414886444333333171920181818111110688677666252724252622182016131514121413131313
Sunrise
6:09 - - 6:09 - - 6:11 - - 6:13 - - 6:13 - - 6:16 - -
Sunset
- 8:10 - - 8:08 - - 8:07 - - 8:06 - - 8:04 - - 8:01 -

Issued local time.

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.WeatherWind
Cloud
Visibility
Cloud / Visibility
Lyman
19 km S
155m alt.
1 hour ago
19° C
Dry
0
Calm
(0 kph at 65).
Bellingham
25 km WSW
198m alt.
1 hour ago
18° C
Dry
0
Calm
(0 kph at 225).
Deming
25 km WNW
102m alt.
1 hour ago
17° C
Dry
2
Calm
(2 kph at 116).
Bellingham
29 km W
71m alt.
2 hours ago
10° C
Dry
0
Calm
(0 kph at 270).
Bellingham
32 km W
130m alt.
1 hour ago
-
2
Calm
(2 kph at 84).

* 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.