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

Mount Si
Weather Forecast, United States

Issued: 3 am Mon 02 Mar Local Time
Updates in:
hr min s
Update imminent

Days 1–3 Weather Summary

Mild at first with light rain (total 6mm) on Tue afternoon followed by colder weather and light fall of snow, heaviest on Tue night. Freeze-thaw conditions (max 6°C on Mon morning, min -2°C on Wed night). Winds increasing (calm on Mon afternoon, strong winds from the SW by Tue morning).

Days 4–6 Weather Summary

A light covering of new snow mostly falling on Thu night. Becoming milder with moderate rain (total 13mm) heaviest on Sat afternoon. Freeze-thaw conditions (max 3°C on Sat morning, min -2°C on Thu morning). Winds decreasing (fresh winds from the WSW on Thu night, light winds from the NNW by Fri afternoon).

Monday
2
Tuesday
3
Wednesday
4
Thursday
5
Friday
6
Saturday
7
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
clear
clear
part cloud
light rain
light rain
light snow
light snow
light snow
mod snow
cloud
cloud
light snow
cloud
part cloud
cloud
light rain
mod rain
light rain
clear
clear
some clouds
light rain
light rain
light snow
light snow
light snow
mod. snow
cloudy
cloudy
light snow
cloudy
some clouds
cloudy
light rain
mod. rain
light rain
 km/h
10
WNW
5
WSW
15
SW
35
SW
40
SW
35
SW
20
SW
15
WNW
15
NNW
10
W
25
WSW
30
WSW
10
NW
10
NNW
10
WSW
30
WSW
35
WSW
15
W
3
1
2
7
5
2
4
3
7
3
max °C
6
6
4
4
3
2
1
1
0
-2
-1
0
1
1
2
3
3
3
min °C
5
6
4
3
2
1
1
1
-2
-2
-1
-1
1
1
1
3
3
2
3
5
1
-3
-4
-4
-4
-3
-6
-5
-7
-5
-2
-3
-1
-3
-3
-1
2250
2300
2150
1850
1700
1600
1400
1450
1200
1000
1100
1200
1450
1500
1450
2150
2250
1800
Cloud base (m)
8950
6600
800
400
400
600
450
450
450
450
450
450
500
500
450
400
450
Sea lvl1000m2000m3000m4000m5000m
66443211-1-2-1-111233311108987764344666777
Sunrise
6:45
6:43
6:41
6:39
6:37
6:35
Sunset
5:52
5:54
5:55
5:58
5:59
6:00

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Mount Si Weather (Days 0-3):

The weather forecast for Mount Si is: Mild at first with light rain (total 6mm) on Tue afternoon followed by colder weather and light fall of snow, heaviest on Tue night. Freeze-thaw conditions (max 6°C on Mon morning, min -2°C on Wed night). Winds increasing (calm on Mon afternoon, strong winds from the SW by Tue morning).

Mount Si Weather (Days 3-6):

A light covering of new snow mostly falling on Thu night. Becoming milder with moderate rain (total 13mm) heaviest on Sat afternoon. Freeze-thaw conditions (max 3°C on Sat morning, min -2°C on Thu morning). Winds decreasing (fresh winds from the WSW on Thu night, light winds from the NNW by Fri 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 10 closest weather stations

Weather StationTemp.WeatherWindGusts
Cloud
Visibility
Cloud / Visibility
6 km SSW
251m alt.
1 hour ago
-1° C
-
0
Calm
(0 kph at 345).
0
32 km SSW
192m alt.
1 hour ago
-
3
Calm
(3 kph at 26).
8
36 km WSW
218m alt.
2 hours ago
2° C
clear
Clear
0
Calm
(0 kph at 0).
16 km
39 km SW
119m alt.
1 hour ago
11° C
Dry
0
Calm
(0 kph at 43).
6
40 km SE
628m alt.
2 hours ago
1° C
clear
Clear
Wind obs. (6 kph from 210 degs) was rejected.
16 km
Seattl / oeing Airport
44 km WSW
218m alt.
2 hours ago
1° C
clear
Clear
6
Light winds from the SSE
(6 kph at 160).
14 km
44 km WSW
218m alt.
1 hour ago
4° C
clear
Fog patches -.
0
Calm
(0 kph at 0).
13 km
Low: few
49 km NW
196m alt.
57 minutes ago
-1° C
-
0
Calm
(0 kph at 32).
3
49 km WSW
100m alt.
48 minutes ago
-
Wind obs. (11 kph from 154 degs) was rejected.
SHIP3597
54 km W
15m alt.
3 hours ago
4
Calm
(4 kph at 20).
- 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