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

Mount Si
Weather Forecast, United States

Issued: 10 am Fri 10 Apr Local Time
Updates in:
hr min s
Update imminent

Days 1–3 Weather Summary

Mild with light rain (total 7mm) on Sat morning Becoming colder with a light covering of snow, mostly falling on Sat afternoon. Freeze-thaw conditions (max 11°C on Fri afternoon, min -1°C on Sun night). Winds increasing (calm on Fri afternoon, fresh winds from the SW by Sun night).

Days 4–6 Weather Summary

A heavy fall of snow, heaviest during Wed afternoon. Temperatures will be below freezing (max 0°C on Mon afternoon, min -5°C on Tue night). Winds decreasing (gales from the SSW on Tue afternoon, light winds from the NW by Wed night).

Friday
10
Saturday
11
Sunday
12
Monday
13
Tuesday
14
Wednesday
15
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
cloud
part cloud
part cloud
light rain
light snow
light rain
rain showers
light rain
light snow
cloud
light snow
light snow
light snow
light snow
mod snow
light snow
mod snow
snow showers
cloudy
some clouds
some clouds
light rain
light snow
light rain
rain shwrs
light rain
light snow
cloudy
light snow
light snow
light snow
light snow
mod. snow
light snow
mod. snow
snow shwrs
 km/h
5
SE
10
NW
5
WNW
15
SSW
15
SW
10
SW
5
W
10
W
30
SW
30
SW
30
WSW
30
SW
45
SW
65
SSW
50
WSW
20
WSW
15
WNW
10
NW
4
3
1
1
2
4
8
5
10
1
3
2
0.3
1.1
0.9
max °C
10
11
10
4
2
2
2
2
2
-1
0
0
-2
-1
-3
-5
-3
-4
min °C
10
10
6
2
2
2
2
2
-1
-1
0
-2
-2
-1
-5
-5
-4
-5
10
9
5
-2
-2
-2
1
0
-8
-8
-6
-9
-10
-9
-16
-13
-10
-9
2700
2750
2500
1800
1650
1750
1700
1650
1250
1100
1250
950
1050
1100
500
600
700
550
Cloud base (m)
3050
2950
2650
450
400
400
400
400
400
450
400
400
400
400
500
400
450
450
Sea lvl1000m2000m3000m4000m5000m
10118322221-10-1-2-1-4-5-4-514181287777656444112-1
Sunrise
6:28
6:26
6:24
6:22
6:20
6:18
Sunset
7:49
7:50
7:51
7:52
7:53
7:55

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Mount Si Weather (Days 0-3):

The weather forecast for Mount Si is: Mild with light rain (total 7mm) on Sat morning Becoming colder with a light covering of snow, mostly falling on Sat afternoon. Freeze-thaw conditions (max 11°C on Fri afternoon, min -1°C on Sun night). Winds increasing (calm on Fri afternoon, fresh winds from the SW by Sun night).

Mount Si Weather (Days 3-6):

A heavy fall of snow, heaviest during Wed afternoon. Temperatures will be below freezing (max 0°C on Mon afternoon, min -5°C on Tue night). Winds decreasing (gales from the SSW on Tue afternoon, light winds from the NW 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.
25 minutes ago
19° C
Dry
0
Calm
(0 kph at 281).
0
30 km ESE
824m alt.
28 minutes ago
12° C
-
0
Calm
(0 kph at 28).
0
30 km WSW
160m alt.
2 hours ago
12° C
Dry
0
Calm
(0 kph at 210).
0
32 km SSW
192m alt.
1 hour ago
-
3
Calm
(3 kph at 0).
16
35 km NE
321m alt.
24 minutes ago
16° C
Dry
2
Calm
(2 kph at 152).
6
36 km WSW
218m alt.
2 hours ago
12° C
clear
Clear
0
Calm
(0 kph at 0).
16 km
39 km NE
1101m alt.
2 hours ago
12° C
Dry
0
Calm
(0 kph at 327).
5
39 km SW
119m alt.
1 hour ago
26° C
Dry
0
Calm
(0 kph at 274).
13
40 km SE
628m alt.
2 hours ago
7° C
cloudy
Dry and cloudy.
0
Calm
(0 kph at 0).
16 km
Low: broken
Mid: overcast
SHIP3326
42 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.

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