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

Mount Si
Weather Forecast, United States

Issued: 4 pm Tue 18 Aug Local Time
Updates in:
hr min s
Update imminent

Days 1–4 Weather Summary

Mostly dry. Very mild (max 19°C on Thu afternoon, min 14°C on Tue night). Wind will be generally light.

Days 5–7 Weather Summary

Light rain (total 3mm), mostly falling on Sat morning. Warm (max 21°C on Fri afternoon, min 9°C on Sat night). Wind will be generally light.

Tue
18
Wednesday
19
Thursday
20
Friday
21
Saturday
22
Sunday
23
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
clear
clear
clear
part cloud
clear
clear
clear
clear
cloud
cloud
rain showers
rain showers
rain showers
rain showers
rain showers
clear
clear
clear
clear
clear
some clouds
clear
clear
clear
clear
cloudy
cloudy
rain shwrs
rain shwrs
rain shwrs
rain shwrs
rain shwrs
clear
clear
Cloud base (m)
7250
8950
5550
5950
500
600
800
650
km/h
10
NW
5
NW
5
WNW
5
WNW
5
NNW
0
W
5
WNW
5
NNW
5
S
5
W
5
W
20
SW
15
WSW
5
NNW
10
N
10
NNW
5
N
Weather map
Weather map
Weather map
Weather map
Weather map
Weather map
Snowflake cm
 mm
0.2
1.9
0.4
0.3
0.1
max °C
17
16
15
17
16
17
19
19
19
21
19
12
10
10
11
15
14
min °C
16
14
14
16
15
16
18
18
19
20
14
10
10
9
10
13
14
 chill °C
16
14
14
16
15
16
18
18
19
20
13
7
8
8
9
13
14
Freezing level m
4400
4500
4400
4300
4300
4350
4500
4550
4400
4300
3950
3500
3500
3850
3900
4000
4200
Sea lvl1000m2000m3000m4000m5000m
17151517161719191921171110101114142418182419212620222719151614162216
Sunrise
6:07
6:09
6:09
6:11
6:13
Sunset
8:14
8:12
8:09
8:07
8:07
8:05

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Mount Si Weather (Days 0-3):

The weather forecast for Mount Si is: Mostly dry. Very mild (max 19°C on Thu afternoon, min 14°C on Tue night). Wind will be generally light.

Mount Si Weather (Days 3-6):

Light rain (total 3mm), mostly falling on Sat morning. Warm (max 21°C on Fri afternoon, min 9°C on Sat night). Wind will be generally light.

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
30 km WSW
160m alt.
58 minutes ago
27° C
Dry
3
Calm
(3 kph at 312).
8
32 km SSW
192m alt.
54 minutes ago
-
0
Calm
(0 kph at 0).
2
36 km WSW
218m alt.
2 hours ago
26° C
clear
Clear
Wind obs. (9 kph from 170 degs) was rejected.
16 km
39 km SW
119m alt.
51 minutes ago
34° C
Dry
0
Calm
(0 kph at 232).
2
SHIP5183
43 km W
15m alt.
3 hours ago
- km
SHIP3117
43 km W
15m alt.
3 hours ago
- km
SHIP8327
43 km W
15m alt.
3 hours ago
- km
SHIP6400
43 km W
15m alt.
3 hours ago
- km
SHIP9408
43 km W
15m alt.
3 hours ago
- km
SHIP3854
43 km W
15m alt.
3 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