– Lat/Long: 47.51° N 121.74° W

Mount Si
Weather Forecast, United States
Issued: 3 pm Thu 20 Nov Local Time
Updates in:
hr min s
Update imminent

Issued: 3 pm Thu 20 Nov Local Time

Updates in:

hr min s

Update imminent

2 Mount Si Elevations: 2 Forecast Elevations:

	Days 1–4 Weather Summary Light rain (total 7mm), mostly falling on Sun morning. Very mild (max 10°C on Sat morning, min 4°C on Thu night). Wind will be generally light.											Days 5–7 Weather Summary A dusting of snow. Milder later with heavy rain (total 22mm) on Wed morning. Mild temperatures (max 5°C on Sun afternoon, min 1°C on Mon afternoon). Wind will be generally light.
	Thu 20		Friday 21			Saturday 22			Sunday 23			Monday 24			Tuesday 25
	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	rain shwrs	some clouds	some clouds	some clouds	some clouds	cloudy	some clouds	light rain	mod. rain	mod. rain	light rain	rain shwrs	rain shwrs	light rain	cloudy	some clouds	light snow
km/h	NW	SE	SSW	SW	S	S	SSW	SSW	SSW	SW	WSW	W	NW	NW	NNE	ESE	SE
See all weather maps
cm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	2
mm	0.1	—	—	—	—	—	—	0.1	7	6	2	1.3	1.2	0.2	—	—	—
max°C	7	5	8	7	8	10	9	9	7	5	2	4	2	2	3	3	2
min°C	5	4	7	6	6	9	8	8	6	3	2	2	1	1	2	2	2
chill°C	5	4	7	5	5	9	7	7	2	1	-1	0	1	1	2	0	0

Freezing level (m)	1450	1700	2350	2100	2300	2450	2350	2000	1450	1150	850	850	850	750	850	1000	800
Cloud base (m)	600			2350	1000	800	1650	750	550	400	500	550	800	600	450	2750	1000

	—	—	7:20	—	—	7:22	—	—	7:22	—	—	7:24	—	—	7:26	—	—
	4:24	—	—	4:23	—	—	4:22	—	—	4:22	—	—	4:22	—	—	4:21	—

Mount Si Weather (Days 0-3):

The weather forecast for Mount Si is: Light rain (total 7mm), mostly falling on Sun morning. Very mild (max 10°C on Sat morning, min 4°C on Thu night). Wind will be generally light.

Mount Si Weather (Days 3-6):

A dusting of snow. Milder later with heavy rain (total 22mm) on Wed morning. Mild temperatures (max 5°C on Sun afternoon, min 1°C on Mon afternoon). 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 5 closest weather stations

Weather Station	Temp.	Weather	Wind	Cloud Visibility Cloud / Visibility
Harman Heights wx 6 km SSW 251m alt. 1 hour ago	4° C	Dry	Calm (0 kph at 236).
Renton Airport 36 km WSW 218m alt. 2 hours ago	8° C	Clear	Calm (0 kph at 0).	16 km
Auburn 39 km SW 119m alt. 2 hours ago	5° C	Dry	Calm (0 kph at 196).
Stampede Pass Airport 40 km SE 628m alt. 2 hours ago	1° C	Fog -.	Wind obs. (6 kph from 220 degs) was rejected.	0 km
SHIP3902 42 km WSW 3m alt. 3 hours ago	9° C		Calm (4 kph at 120).
SHIP3089 42 km WSW 15m alt. 2 hours ago			Light winds from the SSE (10 kph at 160).	- km
SHIP3475 42 km WSW 15m alt. 3 hours ago			Calm (4 kph at 120).	- km
SHIP5866 42 km WSW 15m alt. 3 hours ago			Calm (4 kph at 120).	- km
SHIP5165 42 km WSW 15m alt. 2 hours ago			Calm (4 kph at 100).	- km
SHIP582 42 km WSW -m alt. 1 hour ago	9° C	-	Calm (4 kph at 140).

* 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.