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

Mount Si
Weather Forecast, United States

Issued: 3 am Tue 16 Dec Local Time
Updates in:
hr min s
Update imminent

Days 1–3 Weather Summary

Heavy rain (total 58mm), heaviest during Tue night. Very mild (max 10°C on Tue night, min 1°C on Thu night). Winds decreasing (strong winds from the SW on Tue night, light winds from the SE by Wed night).

Days 4–6 Weather Summary

A dusting of snow. Milder later with heavy rain (total 25mm) on Sun night. Mild temperatures (max 6°C on Sun afternoon, min 1°C on Sat afternoon). Winds increasing (light winds from the SE on Sat afternoon, fresh winds from the SW by Sun afternoon).

Tuesday
16
Wednesday
17
Thursday
18
Friday
19
Saturday
20
Sunday
21
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
mod rain
mod rain
heavy rain
light rain
light rain
light rain
light rain
heavy rain
rain showers
light snow
light snow
light snow
light rain
rain showers
light rain
mod rain
light rain
heavy rain
mod. rain
mod. rain
heavy rain
light rain
light rain
light rain
light rain
heavy rain
rain shwrs
light snow
light snow
light snow
light rain
rain shwrs
light rain
mod. rain
light rain
heavy rain
 km/h
20
SW
35
SW
40
WSW
30
WSW
25
SW
10
SSW
15
SE
30
SW
30
WSW
25
SW
25
SW
20
SW
10
SSW
5
S
10
ESE
20
SSE
30
SW
5
S
 cm 
1
1
2
 mm 
6
9
17
3
3
3
4
10
3
3
0.5
0.4
7
2
12
max°C
9
9
10
3
3
3
5
8
4
2
2
2
3
3
3
5
6
3
min°C
8
9
2
2
3
3
3
5
1
2
2
2
2
1
1
4
5
3
chill°C 
5
5
-5
-4
-2
0
-1
0
-4
-3
-3
-3
-1
-1
-2
0
2
0
Freezing level (m
1700
1900
1950
800
900
1000
1250
1950
800
750
750
750
850
900
1250
1800
1350
1000
Cloud base (m)
450
350
350
450
450
400
500
350
750
450
400
450
400
400
400
750
400
550
Sea lvl1000m2000m3000m4000m5000m
441-4-3-222-3-4-4-3-3-2131-2996333473222322563
Sunrise
7:48
7:48
7:50
7:50
7:50
7:50
Sunset
4:15
4:15
4:16
4:16
4:16
4:17

Loading...

Mount Si Weather (Days 0-3):

The weather forecast for Mount Si is: Heavy rain (total 58mm), heaviest during Tue night. Very mild (max 10°C on Tue night, min 1°C on Thu night). Winds decreasing (strong winds from the SW on Tue night, light winds from the SE by Wed night).

Mount Si Weather (Days 3-6):

A dusting of snow. Milder later with heavy rain (total 25mm) on Sun night. Mild temperatures (max 6°C on Sun afternoon, min 1°C on Sat afternoon). Winds increasing (light winds from the SE on Sat afternoon, fresh winds from the SW by Sun afternoon).

This table gives the weather forecast for Mount Si at the specific elevation of 500 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.
1 hour ago
7° C
Dry
0
Calm
(0 kph at 122).
0
32 km SSW
192m alt.
1 hour ago
8° C
Dry
2
Calm
(2 kph at 279).
5
36 km WSW
218m alt.
2 hours ago
9° C
cloudy
Dry and cloudy.
7
Light winds from the S
(7 kph at 170).
16 km
Low: scattered
Mid: broken
High: overcast
39 km SW
119m alt.
1 hour ago
-
0
Calm
(0 kph at 103).
0
40 km SE
628m alt.
1 hour ago
2° C
light rain
Light rain .
0
Calm
(0 kph at 0).
1 km
Seattl / oeing Airport
44 km WSW
218m alt.
2 hours ago
8° C
partially cloudy
Dry and partly cloudy.
13
Light winds from the SSE
(13 kph at 150).
16 km
Low: scattered
Mid: broken
44 km WSW
218m alt.
2 hours ago
8° C
cloudy
Dry and cloudy.
15
Light winds from the S
(15 kph at 170).
16 km
Low: few
Mid: overcast
49 km NW
196m alt.
1 hour ago
8° C
Dry
2
Calm
(2 kph at 126).
5
49 km WSW
100m alt.
2 hours ago
-1° C
-
SHIP4000
54 km W
15m alt.
3 hours ago
17
Light winds from the SE
(17 kph at 140).
- 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