– Lat/Long: 47.51° N 121.74° W

Mount Si
Weather Forecast, United States
Issued: 9 pm Fri 28 Nov Local Time
Updates in:
hr min s
Update imminent

Issued: 9 pm Fri 28 Nov Local Time

Updates in:

hr min s

Update imminent

2 Mount Si Elevations: 2 Forecast Elevations:

	Days 1–4 Weather Summary Mostly dry. Mild temperatures (max 7°C on Sat morning, min 1°C on Sat night). Wind will be generally light.										Days 5–7 Weather Summary Moderate rain (total 10mm), heaviest on Mon night. Mild temperatures (max 7°C on Thu afternoon, min 2°C on Tue night). Wind will be generally light.
		Saturday 29			Sunday 30			Monday 1			Tuesday 2			Wednesday 3			Thursday 4
	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	cloudy	cloudy	rain shwrs	clear	some clouds	some clouds	some clouds	some clouds	some clouds	light rain	light rain	light rain	some clouds	some clouds	some clouds	cloudy	light rain	light rain	heavy rain
km/h	ESE	SE	SSE	E	S	NW	ENE	N	NNW	SW	NW	NW	SSW	W	SW	SE	SSE	SSW	WSW
See all weather maps
cm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
mm	—	—	0.5	—	—	—	—	—	—	4	1.4	0.1	—	—	—	—	1.6	3	14
max°C	6	7	4	2	6	4	4	6	4	4	4	3	3	4	4	5	6	7	10
min°C	5	6	3	1	4	3	3	5	4	3	4	3	2	4	3	3	5	6	8
chill°C	3	5	2	0	4	3	3	5	4	3	3	3	2	4	3	3	5	5	5

Freezing level (m)	2400	2000	1500	900	1400	1550	2350	3150	2000	1100	1200	1050	950	1050	1050	1250	1900	2650	2400
Cloud base (m)	5300	400	2650	550	6600	6600		2400	1900	850	450	450	600	500	1600	700	450	450	400

	—	7:31	—	—	7:31	—	—	7:33	—	—	7:35	—	—	7:35	—	—	7:37	—	—
	—	—	4:17	—	—	4:17	—	—	4:16	—	—	4:16	—	—	4:16	—	—	4:15	—

Mount Si Weather (Days 0-3):

The weather forecast for Mount Si is: Mostly dry. Mild temperatures (max 7°C on Sat morning, min 1°C on Sat night). Wind will be generally light.

Mount Si Weather (Days 3-6):

Moderate rain (total 10mm), heaviest on Mon night. Mild temperatures (max 7°C on Thu afternoon, min 2°C on Tue night). 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 329).
Black Diamond 32 km SSW 192m alt. 1 hour ago	10° C	Dry	Calm (0 kph at 0).
Renton Airport 36 km WSW 218m alt. 3 hours ago	6° C	Clear	Calm (0 kph at 0).	16 km
Auburn 39 km SW 119m alt. 1 hour ago	1° C	-	Calm (0 kph at 194).
Stampede Pass Airport 40 km SE 628m alt. 2 hours ago	-2° C	Dry and cloudy.	Wind obs. (7 kph from 1 degs) was rejected.	0.0 km High: overcast
Seattl / oeing Airport 44 km WSW 218m alt. 3 hours ago	7° C	Clear	Calm (0 kph at 0).	16 km
Seattle Tacoma International Airport 44 km WSW 218m alt. 3 hours ago	7° C	Dry and partly cloudy.	Light winds from the NE (15 kph at 40).	16 km Low: broken
Snohomish 49 km NW 196m alt. 55 minutes ago	6° C	Dry	Calm (0 kph at 20).
Seattle 49 km WSW 100m alt. 1 hour ago	6° C	-
BUOY-WPOW1 55 km W 3m alt. 2 hours ago	8° C		Light winds from the NNW (9 kph at 340).

* 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.