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

Mount Si
Weather Forecast, United States

Issued: 9 am Fri 20 Feb Local Time
Updates in:
hr min s
Update imminent

Days 1–3 Weather Summary

Drizzle, on Sun morning followed by colder weather and a moderate fall of snow, heaviest on Sun afternoon.. Freeze-thaw conditions (max 3°C on Sun morning, min -6°C on Fri morning). Winds increasing (light winds from the SSW on Fri afternoon, strong winds from the ESE by Sat night).

Days 4–6 Weather Summary

Moderate rain (total 10mm) on Mon afternoon. Becoming colder with heavy fall of snow, heaviest during Mon night. Freeze-thaw conditions (max 3°C on Mon afternoon, min -4°C on Tue night). Winds increasing (light winds from the E on Mon morning, strong winds from the SW by Wed night).

Friday
20
Saturday
21
Sunday
22
Monday
23
Tuesday
24
Wednesday
25
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
cloud
cloud
part cloud
cloud
part cloud
cloud
light rain
light snow
mod snow
light snow
heavy rain
mod snow
snow showers
light snow
light snow
light snow
light snow
cloud
cloudy
cloudy
some clouds
cloudy
some clouds
cloudy
light rain
light snow
mod. snow
light snow
heavy rain
mod. snow
snow shwrs
light snow
light snow
light snow
light snow
cloudy
 km/h
10
SW
10
SSW
15
ESE
35
ESE
35
ESE
40
ESE
40
SE
15
SSE
25
SW
10
E
25
SSW
40
SW
30
SW
25
WSW
40
WSW
35
WSW
40
WSW
40
SW
3
7
3
6
2
1
4
2
2
1.1
10
max °C
-5
-4
-1
-1
1
2
3
0
-1
0
3
2
-2
-2
-3
-3
-2
-2
min °C
-6
-4
-3
-1
1
1
2
0
-1
0
2
-1
-2
-2
-4
-4
-2
-2
-11
-8
-7
-8
-6
-7
-4
-4
-8
-3
-3
-8
-9
-8
-13
-12
-10
-10
550
800
600
1150
1400
1450
1800
1350
1150
1200
1800
1400
950
1000
750
750
1000
950
Cloud base (m)
600
600
3800
2500
1750
2600
1700
850
450
400
400
400
450
500
400
450
450
650
Sea lvl1000m2000m3000m4000m5000m
-6-4-2-11230-1031-2-2-4-4-2-2221444743455432333
Sunrise
7:03
7:01
6:58
6:58
6:56
6:54
Sunset
5:37
5:39
5:40
5:43
5:44
5:45

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Mount Si Weather (Days 0-3):

The weather forecast for Mount Si is: Drizzle, on Sun morning followed by colder weather and a moderate fall of snow, heaviest on Sun afternoon.. Freeze-thaw conditions (max 3°C on Sun morning, min -6°C on Fri morning). Winds increasing (light winds from the SSW on Fri afternoon, strong winds from the ESE by Sat night).

Mount Si Weather (Days 3-6):

Moderate rain (total 10mm) on Mon afternoon. Becoming colder with heavy fall of snow, heaviest during Mon night. Freeze-thaw conditions (max 3°C on Mon afternoon, min -4°C on Tue night). Winds increasing (light winds from the E on Mon morning, strong winds from the SW by Wed 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 10 closest weather stations

Weather StationTemp.WeatherWindGusts
Cloud
Visibility
Cloud / Visibility
6 km SSW
251m alt.
2 hours ago
4° C
Dry
0
Calm
(0 kph at 329).
0
32 km SSW
192m alt.
1 hour ago
-
Wind obs. (6 kph from 310 degs) was rejected.
36 km WSW
218m alt.
1 hour ago
4° C
cloudy
Dry and cloudy.
7
Light winds from the N
(7 kph at 350).
16 km
Low: overcast
39 km SW
119m alt.
33 minutes ago
10° C
Dry
Wind obs. (6 kph from 275 degs) was rejected.
40 km SE
628m alt.
2 hours ago
-4° C
moderate rain
Moderate rain .
0
Calm
(0 kph at 0).
16 km
Low: few
Mid: scattered
High: overcast
Seattl / oeing Airport
44 km WSW
218m alt.
2 hours ago
4° C
cloudy
Dry and cloudy.
6
Light winds from the ESE
(6 kph at 120).
16 km
Low: overcast
44 km WSW
218m alt.
1 hour ago
4° C
partially cloudy
Dry and partly cloudy.
0
Calm
(0 kph at 0).
16 km
Low: broken
Mid: broken
High: broken
49 km NW
196m alt.
40 minutes ago
2° C
-
3
Calm
(3 kph at 34).
11
49 km WSW
100m alt.
1 hour ago
-
8
Light winds from the SW
(8 kph at 216).
SHIP3156
50 km WSW
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