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

Mount Si
Weather Forecast, United States

Issued: 10 am Tue 18 Aug Local Time
Updates in:
hr min s
Update imminent

Days 1–3 Weather Summary

Mostly dry. Warm (max 27°C on Thu afternoon, min 14°C on Tue night). Wind will be generally light.

Days 4–6 Weather Summary

Some drizzle, heaviest during Fri afternoon. Warm (max 24°C on Fri afternoon, min 13°C on Sat morning). Wind will be generally light.

Tuesday
18
Wednesday
19
Thursday
20
Friday
21
Saturday
22
Sunday
23
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
clear
clear
clear
clear
clear
part cloud
clear
clear
clear
part cloud
rain showers
rain showers
light rain
rain showers
clear
clear
clear
clear
clear
clear
clear
clear
clear
some clouds
clear
clear
clear
some clouds
rain shwrs
rain shwrs
light rain
rain shwrs
clear
clear
clear
clear
Cloud base (m)
6500
8950
8850
9000
3950
6150
550
650
700
9450
km/h
5
NW
10
WNW
0
S
5
W
5
W
0
ESE
5
WNW
5
NW
5
ESE
5
WNW
5
WSW
5
SSW
5
SW
5
W
5
NNE
5
NW
5
NW
5
E
Weather map
Weather map
Weather map
Weather map
Weather map
Weather map
Snowflake cm
 mm
0.5
0.4
0.2
0.1
max °C
20
25
21
19
24
20
23
27
22
23
24
21
14
17
15
19
23
19
min °C
17
23
14
16
22
16
19
26
19
20
24
14
13
16
13
15
22
16
 chill °C
17
23
14
16
22
16
19
26
19
20
24
14
12
16
13
15
22
16
Freezing level m
4350
4400
4450
4350
4300
4350
4450
4600
4600
4300
4250
3800
3550
3850
4050
4100
4200
4300
Sea lvl1000m2000m3000m4000m5000m
15171515161617202020191591012141617192418182318212721222418141714172318
Sunrise
6:05
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. Warm (max 27°C on Thu afternoon, min 14°C on Tue night). Wind will be generally light.

Mount Si Weather (Days 3-6):

Some drizzle, heaviest during Fri afternoon. Warm (max 24°C on Fri afternoon, min 13°C on Sat morning). Wind will be generally light.

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 10 closest weather stations

Weather StationTemp.WeatherWindGusts
Cloud
Visibility
Cloud / Visibility
30 km WSW
160m alt.
2 hours ago
26° C
Dry
3
Calm
(3 kph at 248).
14
32 km SSW
192m alt.
1 hour ago
-
Wind obs. (11 kph from 63 degs) was rejected.
36 km WSW
218m alt.
2 hours ago
25° C
clear
Clear
7
Light winds from the SSW
(7 kph at 210).
14 km
39 km SW
119m alt.
38 minutes ago
37° C
Dry
0
Calm
(0 kph at 201).
5
SHIP3117
43 km W
15m alt.
2 hours ago
- km
SHIP6732
43 km W
15m alt.
3 hours ago
- km
SHIP3077
43 km W
15m alt.
3 hours ago
- km
SHIP8327
43 km W
15m alt.
2 hours ago
- km
SHIP4681
43 km W
3m alt.
3 hours ago
23° C
SHIP4330
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