Mount Si weather
– Lat/Long: 47.51° N 121.74° W

Mount Si
Weather Forecast, United States

Issued: 9 am Sat 22 Nov Local Time
Updates in:
hr min s
Update imminent

Days 1–3 Weather Summary

Mild with moderate rain (total 12mm) on Sun morning, Becoming colder with a light covering of snow, mostly falling on Sun night. Freeze-thaw conditions (max 4°C on Sat morning, min -3°C on Sun night). Winds decreasing (fresh winds from the SW on Sat night, calm by Mon night).

Days 4–6 Weather Summary

A light covering of new snow mostly falling on Tue night will be washed away by heavy rain (total 40mm) on Wed morning. Freeze-thaw conditions (max 4°C on Wed afternoon, min -1°C on Tue morning). Winds increasing (light winds from the ESE on Tue morning, near gales from the SSW by Wed afternoon).

Saturday
22
Sunday
23
Monday
24
Tuesday
25
Wednesday
26
Thursday
27
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
cloud
light rain
mod rain
light rain
cloud
snow showers
part cloud
light snow
part cloud
part cloud
cloud
mod snow
heavy rain
mod rain
heavy rain
cloud
cloud
cloud
cloudy
light rain
mod. rain
light rain
cloudy
snow shwrs
some clouds
light snow
some clouds
some clouds
cloudy
mod. snow
heavy rain
mod. rain
heavy rain
cloudy
cloudy
cloudy
 km/h
25
SW
25
SW
25
SW
30
WSW
20
WSW
20
SW
20
WSW
15
SW
5
NW
10
ESE
10
SSE
25
SSW
35
SSW
45
SW
45
SW
25
SW
20
WSW
20
SW
 cm 
6
2
6
 mm 
0.9
6
5
7
15
6
12
max°C
4
3
3
3
0
-2
-2
-2
-3
1
1
2
3
4
3
1
1
0
min°C
4
3
3
2
-1
-3
-3
-3
-3
-1
1
0
3
3
2
1
0
-1
chill°C 
-1
-2
-2
-3
-5
-6
-9
-8
-3
-4
-2
-5
-3
-4
-4
-5
-5
-6
Freezing level (m
2300
2050
1850
1700
1300
900
900
950
750
1150
1600
1450
2000
1950
2000
1400
1400
1200
Cloud base (m)
650
750
400
400
450
650
550
600
500
500
2750
400
400
400
400
450
700
700
Sea lvl1000m2000m3000m4000m5000m
4333-1-3-3-3-301134311-1998753431544567765
Sunrise
7:22
7:22
7:24
7:26
7:26
7:28
Sunset
4:22
4:22
4:22
4:21
4:20
4:20

Loading...

Mount Si Weather (Days 0-3):

The weather forecast for Mount Si is: Mild with moderate rain (total 12mm) on Sun morning, Becoming colder with a light covering of snow, mostly falling on Sun night. Freeze-thaw conditions (max 4°C on Sat morning, min -3°C on Sun night). Winds decreasing (fresh winds from the SW on Sat night, calm by Mon night).

Mount Si Weather (Days 3-6):

A light covering of new snow mostly falling on Tue night will be washed away by heavy rain (total 40mm) on Wed morning. Freeze-thaw conditions (max 4°C on Wed afternoon, min -1°C on Tue morning). Winds increasing (light winds from the ESE on Tue morning, near gales from the SSW by Wed afternoon).

This table gives the weather forecast for Mount Si at the specific elevation of 1270 m. Our advanced weather models allow us to provide distinct weather forecasts for several elevations of Mount Si. 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
6 km SSW
251m alt.
1 hour ago
12° C
Dry
0
Calm
(0 kph at 347).
2
32 km SSW
192m alt.
1 hour ago
-
Wind obs. (10 kph from 360 degs) was rejected.
36 km WSW
218m alt.
1 hour ago
13° C
cloudy
Dry and cloudy.
9
Light winds from the S
(9 kph at 180).
16 km
Low: broken
Mid: overcast
40 km SE
628m alt.
1 hour ago
5° C
clear
Fog -.
Wind obs. (6 kph from 1 degs) was rejected.
1 km
Seattl / oeing Airport
44 km WSW
218m alt.
2 hours ago
13° C
partially cloudy
Dry and partly cloudy.
17
Light winds from the S
(17 kph at 180).
16 km
Low: few
Mid: scattered
High: broken
44 km WSW
218m alt.
2 hours ago
11° C
cloudy
Dry and cloudy.
13
Light winds from the SSW
(13 kph at 210).
16 km
Low: overcast
49 km NW
196m alt.
50 minutes ago
12° C
Dry
11
Light winds from the S
(11 kph at 171).
27
49 km WSW
100m alt.
49 minutes ago
-
Wind obs. (13 kph from 234 degs) was rejected.
BUOY-WPOW1
55 km W
3m alt.
53 minutes ago
12° C
35
Fresh winds from the S
(35 kph at 180).
BUOY-TCNW1
57 km SW
3m alt.
1 hour ago

* 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.

Mount Si Photos