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

UsMount Si
Weather Forecast, United States

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Issued: 10am Tue 21 Mar Local Time
Updates in: hr min s
Update imminent 
Mountain icon 2 Mount Si Elevations: 2 Forecast Elevations:
 

Mount Si Weather (Days 0-3):

A moderate fall of snow, heaviest on Thu afternoon. Freeze-thaw conditions (max 4°C on Wed afternoon, min -6°C on Thu night). Winds increasing (calm on Wed morning, near gales from the WSW by Thu night).

(Days 3-6):

A heavy fall of snow, heaviest during Fri night. Temperatures will be below freezing (max -2°C on Sun night, min -7°C on Fri morning). Winds decreasing (fresh winds from the WSW on Fri afternoon, calm by Sun night).

Tuesday
21
Wednesday
22
Thursday
23
Friday
24
Saturday
25
Sunday
26
AM PM night AM PM night AM PM night AM PM night AM PM night AM PM night
cloudy
partially cloudy
clear
clear
partially cloudy
light snow
light snow
moderate snow
snow showers
light snow
moderate snow
heavy snow
cloudy
light snow
light snow
partially cloudy
partially cloudy
cloudy
cloudy some clouds clear clear some clouds light snow light snow mod. snow snow shwrs light snow mod. snow heavy snow cloudy light snow light snow some clouds some clouds cloudy
Wind km/h
10
E
5
E
10
E
5
SW
10
W
35
SW
15
S
40
SW
50
WSW
30
WSW
35
WSW
10
WSW
10
SW
10
NW
10
NNW
5
SW
10
SW
5
E
See all weather maps
Snow
 cm
- - - - - 3 1 7 4 3 6 20 - 2 1 - - -
Rain
 mm
- - - - - - - - - - - - - - - - - -
Max °C
0 3 3 3 4 1 -3 -4 -5 -6 -5 -5 -6 -5 -5 -5 -3 -2
Min °C
0 2 2 2 3 -3 -4 -5 -6 -7 -5 -7 -7 -5 -6 -6 -4 -4
 Feels °C
-4 0 -1 0 -1 -4 -8 -16 -16 -14 -13 -10 -11 -10 -10 -9 -8 -8
 Freezing Level m
1300 1700 1700 1600 1700 1000 850 600 400 500 600 0 500 700 0 650 850 0
Sea lvl3000ft6000ft9000ft12000ft15000ft
033341-3-4-5-6-5-5-6-5-5-5-3-26106810632002001-1130
Sunrise
7:07 - - 7:05 - - 7:03 - - 7:01 - - 7:00 - - 6:58 - -
Sunset
- 7:20 - - 7:22 - - 7:22 - - 7:23 - - 7:25 - - 7:27 -

Mount Si Weather (Days 0-3):

The weather forecast for Mount Si is: A moderate fall of snow, heaviest on Thu afternoon. Freeze-thaw conditions (max 4°C on Wed afternoon, min -6°C on Thu night). Winds increasing (calm on Wed morning, near gales from the WSW by Thu night).

Mount Si Weather (Days 3-6):

A heavy fall of snow, heaviest during Fri night. Temperatures will be below freezing (max -2°C on Sun night, min -7°C on Fri morning). Winds decreasing (fresh winds from the WSW on Fri afternoon, calm by Sun 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
30 km ESE
824m alt.
1 hour ago
4° C
-
0
Calm
(0 kph at 0).
0
32 km SSW
192m alt.
1 hour ago
21° C
Dry
10
Light winds from the N
(10 kph at 0).
29
36 km WSW
218m alt.
2 hours ago
10.0° C
cloudy
Dry and cloudy.
13
Light winds from the N
(13 kph at 350).
16 km
Low: overcast
40 km SE
628m alt.
2 hours ago
3.3° C
partially cloudy
Dry and partly cloudy.
0
Calm
(0 kph at 0).
16 km
Low: scattered
43 km WNW
137.2m alt.
56 minutes ago
11° C
Dry
3
Calm
(3 kph at 94).
11

* 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