– Lat/Long: 47.51° N 121.74° W

Mount Si
Weather Forecast, United States
Issued: 3 pm Sun 08 Feb Local Time
Updates in:
hr min s
Update imminent

Issued: 3 pm Sun 08 Feb Local Time

Updates in:

hr min s

Update imminent

2 Mount Si Elevations: 2 Forecast Elevations:

	Days 1–4 Weather Summary Moderate rain (total 12mm), heaviest on Sun night. Mild temperatures (max 8°C on Tue morning, min 1°C on Mon night). Wind will be generally light.											Days 5–7 Weather Summary Mild with moderate rain (total 13mm) on Fri afternoon, Becoming colder with a light covering of snow, mostly falling on Fri night. Freeze-thaw conditions (max 7°C on Wed afternoon, min 0°C on Fri night). Wind will be generally light.
	Sun 8		Monday 9			Tuesday 10			Wednesday 11			Thursday 12			Friday 13
	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	light rain	rain shwrs	light rain	light rain	clear	clear	clear	clear	clear	clear	some clouds	some clouds	light rain	light rain	light rain	mod. rain	mod. snow
km/h	SSW	SSW	SW	SSW	ESE	ESE	ESE	E	NE	W	SSE	SW	SW	SSW	SW	SSE	SW
See all weather maps
cm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	7
mm	0.8	9	2	0.7	—	—	—	—	—	—	—	—	0.1	2	3	7	—
max °C	6	4	4	4	3	8	8	2	8	7	3	6	5	4	4	4	2
min °C	5	2	4	4	1	6	3	2	5	3	2	5	4	4	3	3	0
chill °C	3	-1	1	2	-1	4	0	0	5	3	2	3	3	3	1	1	-4

Freezing level m	1350	950	1000	1100	1050	1550	1500	1500	1450	1650	1400	1100	1150	1100	1050	1150	550
Cloud base (m)	500	800	450	450	850	7650	850	400		9100		2750	1000	450	400	400	400

	—	—	7:20	—	—	7:20	—	—	7:18	—	—	7:16	—	—	7:15	—	—
	5:19	—	—	5:21	—	—	5:22	—	—	5:23	—	—	5:24	—	—	5:27	—

Mount Si Weather (Days 0-3):

The weather forecast for Mount Si is: Moderate rain (total 12mm), heaviest on Sun night. Mild temperatures (max 8°C on Tue morning, min 1°C on Mon night). Wind will be generally light.

Mount Si Weather (Days 3-6):

Mild with moderate rain (total 13mm) on Fri afternoon, Becoming colder with a light covering of snow, mostly falling on Fri night. Freeze-thaw conditions (max 7°C on Wed afternoon, min 0°C on Fri 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 10 closest weather stations

Weather Station	Temp.	Weather	Wind	Cloud Visibility Cloud / Visibility
Harman Heights wx 6 km SSW 251m alt. 1 hour ago	5° C	Dry	Calm (0 kph at 352).
Renton Airport 36 km WSW 218m alt. 2 hours ago	9° C	Dry and cloudy.	Light winds from the S (6 kph at 170).	16 km Low: broken Mid: overcast
Auburn 39 km SW 119m alt. 1 hour ago	12° C	Dry	Calm (0 kph at 336).
Stampede Pass Airport 40 km SE 628m alt. 1 hour ago	0° C	Moderate rain .	Wind obs. (7 kph from 1 degs) was rejected.	8 km Mid: few High: overcast
Seattl / oeing Airport 44 km WSW 218m alt. 2 hours ago	8° C	Dry and partly cloudy.	Light winds from the SSE (7 kph at 160).	16 km Low: scattered Mid: broken
Seattle Tacoma International Airport 44 km WSW 218m alt. 2 hours ago	7° C	Light rain .	Light winds from the SSW (6 kph at 200).	14 km Low: broken Mid: broken High: overcast
Snohomish 49 km NW 196m alt. 57 minutes ago	7° C	Dry	Calm (0 kph at 184).
SHIP4354 54 km W 15m alt. 3 hours ago			Calm (6 kph at 200).	- km
SHIP1182 54 km W -m alt. 43 minutes ago	9° C	-	Light winds from the SSE (6 kph at 150).
SHIP7597 54 km W 15m alt. 3 hours ago			Calm (6 kph at 200).	- 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.