– Lat/Long: 47.51° N 121.74° W

Mount Si
Weather Forecast, United States
Issued: 4 am Wed 01 Apr Local Time
Updates in:
hr min s
Update imminent

Issued: 4 am Wed 01 Apr Local Time

Updates in:

hr min s

Update imminent

2 Mount Si Elevations: 2 Forecast Elevations:

	Days 1–3 Weather Summary A light covering of new snow mostly falling on Wed night. Becoming milder with moderate rain (total 19mm) heaviest on Thu morning. Mild temperatures (max 9°C on Fri afternoon, min 1°C on Thu night). Wind will be generally light.									Days 4–6 Weather Summary Mostly dry. Very mild (max 18°C on Sun afternoon, min 5°C on Sat morning). Wind will be generally light.
	Wednesday 1			Thursday 2			Friday 3			Saturday 4			Sunday 5			Monday 6
	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	light rain	light rain	light snow	light snow	light rain	rain shwrs	clear	clear	clear	clear	clear	some clouds	some clouds	cloudy	cloudy	cloudy	some clouds	some clouds
km/h	ESE	E	WSW	W	WSW	SSW	SSW	SW	E	N	N	ESE	ESE	ESE	ESE	SSW	W	SSW
See all weather maps
cm	—	—	3	3	—	—	—	—	—	—	—	—	—	—	—	—	—	—
mm	2	3	8	4	2	0.5	—	—	—	—	—	—	—	—	—	—	—	—
max °C	7	8	5	2	4	4	6	9	7	10	14	10	15	18	13	17	18	14
min °C	3	6	2	2	4	1	2	8	4	5	13	9	10	17	11	12	17	10
chill °C	1	4	0	0	3	1	2	8	4	5	13	8	9	17	10	12	17	10

Freezing level m	1350	1400	900	850	1150	950	1350	1550	1750	2500	2700	3000	3100	3100	2950	2850	2800	2550
Cloud base (m)	400	650	400	450	450	500	700	1900	1550	8000	9350	5800	5550	7050	7050	6700	5200	6300

	6:46	—	—	6:43	—	—	6:41	—	—	6:39	—	—	6:37	—	—	6:35	—	—
	—	7:36	—	—	7:37	—	—	7:38	—	—	7:39	—	—	7:40	—	—	7:43	—

Mount Si Weather (Days 0-3):

The weather forecast for Mount Si is: A light covering of new snow mostly falling on Wed night. Becoming milder with moderate rain (total 19mm) heaviest on Thu morning. Mild temperatures (max 9°C on Fri afternoon, min 1°C on Thu night). Wind will be generally light.

Mount Si Weather (Days 3-6):

Mostly dry. Very mild (max 18°C on Sun afternoon, min 5°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 Station	Temp.	Weather	Wind	Cloud Visibility Cloud / Visibility
Harman Heights wx 6 km SSW 251m alt. 58 minutes ago	5° C	Dry	Calm (0 kph at 104).
Renton 30 km WSW 160m alt. 2 hours ago	4° C	Dry	Calm (2 kph at 127).
Black Diamond 32 km SSW 192m alt. 2 hours ago		-	Wind obs. (6 kph from 360 degs) was rejected.
Renton Airport 36 km WSW 218m alt. 2 hours ago	7° C	Dry and cloudy.	Light winds from the ESE (6 kph at 120).	16 km Low: few Mid: broken High: overcast
Auburn 39 km SW 119m alt. 58 minutes ago		-	Calm (0 kph at 90).
Stampede Pass Airport 40 km SE 628m alt. 2 hours ago	-2° C	-	Calm (0 kph at 0).	0.0 km
Seattl / oeing Airport 44 km WSW 218m alt. 2 hours ago	7° C	Light rain .	Light winds from the ESE (7 kph at 120).	10 km Mid: scattered High: broken
Seattle Tacoma International Airport 44 km WSW 218m alt. 2 hours ago	7° C	Dry and partly cloudy.	Light winds from the SSE (15 kph at 150).	16 km Low: scattered Mid: broken High: broken
Parkwood Lane Mobile Home Park wx 46 km SW 111m alt. 3 hours ago	4° C	Dry	Light winds from the S (11 kph at 175).
Snohomish 49 km NW 196m alt. 2 hours ago	6° C	Dry	Light winds from the ESE (6 kph at 120).

* 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.