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

Mount Si
Weather Forecast, United States

Issued: 3 pm Mon 01 Dec Local Time
Updates in:
hr min s
Update imminent

Days 1–4 Weather Summary

A light covering of new snow mostly falling on Thu morning. Freeze-thaw conditions (max 2°C on Mon afternoon, min -1°C on Tue afternoon). Wind will be generally light.

Days 5–7 Weather Summary

Heavy rain (total 45mm), mostly on Fri morning. Becoming colder with a light covering of snow, mostly falling on Sat morning. Mild temperatures (max 5°C on Thu night, min 1°C on Thu afternoon). Winds decreasing (near gales from the WSW on Fri morning, light winds from the SW by Sat night).

Mon
1
Tuesday
2
Wednesday
3
Thursday
4
Friday
5
Saturday
6
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
cloud
light snow
snow showers
cloud
part cloud
cloud
part cloud
cloud
light snow
light snow
heavy rain
heavy rain
mod rain
light snow
light snow
light snow
rain showers
cloudy
light snow
snow shwrs
cloudy
some clouds
cloudy
some clouds
cloudy
light snow
light snow
heavy rain
heavy rain
mod. rain
light snow
light snow
light snow
rain shwrs
 km/h
10
WNW
30
WSW
25
NNW
5
NNW
5
WNW
5
W
10
NNW
10
NNW
15
WSW
15
WSW
35
WSW
55
WSW
30
W
40
SW
30
WSW
25
WSW
10
SW
 cm 
2
1
3
2
1
3
1
 mm 
17
14
8
1.7
0.7
max°C
2
0
0
-1
0
0
-1
1
1
2
5
5
4
2
2
2
3
min°C
1
0
0
-1
-1
0
-1
0
1
1
2
4
3
1
2
2
2
chill°C 
-3
-5
-6
-3
-1
-2
-4
-3
-3
-4
-3
-2
-3
-6
-4
-3
-2
Freezing level (m
1800
1250
1250
1150
1200
1300
1150
1350
1500
1550
2200
2250
1850
1450
1600
1600
1650
Cloud base (m)
1600
500
450
450
700
700
1600
450
500
450
400
400
400
400
400
400
450
Sea lvl1000m2000m3000m4000m5000m
200-1-10-1112454222354543444567987777
Sunrise
7:35
7:35
7:37
7:37
7:39
Sunset
4:16
4:16
4:16
4:15
4:15
4:15

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Mount Si Weather (Days 0-3):

The weather forecast for Mount Si is: A light covering of new snow mostly falling on Thu morning. Freeze-thaw conditions (max 2°C on Mon afternoon, min -1°C on Tue afternoon). Wind will be generally light.

Mount Si Weather (Days 3-6):

Heavy rain (total 45mm), mostly on Fri morning. Becoming colder with a light covering of snow, mostly falling on Sat morning. Mild temperatures (max 5°C on Thu night, min 1°C on Thu afternoon). Winds decreasing (near gales from the WSW on Fri morning, light winds from the SW by Sat night).

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.
30 minutes ago
4° C
Dry
0
Calm
(0 kph at 289).
0
32 km SSW
192m alt.
35 minutes ago
-
3
Calm
(3 kph at 0).
6
36 km WSW
218m alt.
2 hours ago
8° C
light rain
Light rain .
0
Calm
(0 kph at 0).
13 km
Low: overcast
39 km SW
119m alt.
37 minutes ago
3° C
Dry
0
Calm
(0 kph at 65).
0
40 km SE
628m alt.
2 hours ago
0° C
cloudy
Dry and cloudy.
9
Light winds from the W
(9 kph at 270).
16 km
Low: overcast
Seattl / oeing Airport
44 km WSW
218m alt.
2 hours ago
8° C
light rain
Light rain .
Wind obs. (6 kph from 60 degs) was rejected.
8 km
Low: overcast
44 km WSW
218m alt.
2 hours ago
7° C
light rain
Light rain .
6
Light winds from the NE
(6 kph at 50).
13 km
Low: overcast
49 km NW
196m alt.
1 hour ago
3° C
Dry
2
Calm
(2 kph at 99).
3
49 km WSW
100m alt.
37 minutes ago
14° C
-
SHIP3984
55 km SW
15m alt.
2 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.

Mount Si Photos