South Twin Sister
Weather Forecast, United States

 

Days 0-3 South Twin Sister Weather Summary:

Heavy rain (total 20mm), heaviest during Wed afternoon. Very mild (max 13°C on Tue night, min 4°C on Fri morning). Wind will be generally light.

Days 3-6 South Twin Sister Weather Summary:

Moderate rain (total 11mm), heaviest on Sun night. Very mild (max 11°C on Sun afternoon, min 1°C on Mon afternoon). Wind will be generally light.

night AM PM night AM PM night AM PM night AM PM night AM PM night AM PM
clear
rain showers
thunderstorm
thunderstorm
partially cloudy
partially cloudy
clear
light rain
light rain
rain showers
light rain
light rain
clear
clear
clear
rain showers
partially cloudy
cloudy
Wind km/h
5 S5
5 SSW5
10 SW10
15 WSW15
10 W10
15 W15
10 WSW10
10 WSW10
15 WSW15
10 WNW10
15 N15
5 NW5
5 WSW5
15 SSW15
25 SSW25
20 SW20
15 SW15
20 WSW20
clear rain shwrs risk tstorm risk tstorm some clouds some clouds clear light rain light rain rain shwrs light rain light rain clear clear clear rain shwrs some clouds cloudy
Rain
Rain mm
- 1 7 9 - - - 1 2 3 1 2 - - - 5 - -
Snow
Snow cm
- - - - - - - - - - - - - - - - - -
High °C
13 11 12 12 8 9 8 5 4 3 5 7 8 10 11 10 2 1
Low °C
12 11 12 9 8 9 5 4 4 3 4 6 8 9 11 3 2 1
Chill °C
13 11 11 11 6 7 6 3 0 -1 2 6 7 8 9 7 -2 -4
Freezing level m
3950 3800 3800 3650 3600 3550 3400 3200 2800 2750 3550 3900 4050 4100 4000 3000 2450 2350
Sea lvl3000ft6000ft9000ft12000ft15000ft
mountain backdrop
131112128985435781011102117161717111311776791012151356222425231921191314141417172023201314
Sunrise
- 5:03 - - 5:05 - - 5:05 - - 5:05 - - 5:05 - - 5:05 -
Sunset
- - 9:14 - - 9:14 - - 9:14 - - 9:14 - - 9:14 - - 9:14

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
18° C
Dry
0
Calm
(0 kph at 263).
Deming
25 km WNW
102m alt.
1 hour ago
19° C
Dry
0
Calm
(0 kph at 138).
Bellingham
25 km WSW
198m alt.
1 hour ago
17° C
Dry
2
Calm
(2 kph at 225).
Bellingham
29 km W
71m alt.
1 hour ago
17° C
Dry
0
Calm
(0 kph at 315).
Bellingham
32 km W
130m alt.
1 hour ago
-
0
Calm
(0 kph at 133).

* 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.