– Lat/Long: 47.51° N 121.74° W

Mount Si
Weather Forecast, United States
Issued: 9 pm Tue 02 Dec Local Time
Updates in:
hr min s
Update imminent

Issued: 9 pm Tue 02 Dec Local Time

Updates in:

hr min s

Update imminent

2 Mount Si Elevations: 2 Forecast Elevations:

	Days 1–4 Weather Summary Heavy rain (total 53mm), heaviest during Thu night. Mild temperatures (max 9°C on Fri morning, min 3°C on Tue night). Winds increasing (calm on Tue night, fresh winds from the WSW by Fri morning).										Days 5–7 Weather Summary Heavy rain (total 65mm), heaviest during Mon afternoon. Very mild (max 10°C on Mon morning, min 5°C on Sat morning). Winds increasing (light winds from the S on Sat night, fresh winds from the SW by Mon afternoon).
		Wednesday 3			Thursday 4			Friday 5			Saturday 6			Sunday 7			Monday 8
	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	some clouds	cloudy	light rain	light rain	light rain	mod. rain	heavy rain	heavy rain	mod. rain	heavy rain	light rain	light rain	light rain	mod. rain	mod. rain	light rain	mod. rain	heavy rain	mod. rain
km/h	ENE	NW	NW	SW	SW	SW	WSW	SW	WSW	W	SW	SW	SSW	S	WSW	WSW	SW	S	WSW
See all weather maps
cm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
mm	—	—	0.5	0.3	5	8	22	12	6	20	2	2	0.4	9	8	4	6	13	9
max°C	4	4	4	4	5	6	7	9	8	7	6	6	6	8	9	9	10	10	10
min°C	3	4	4	4	4	5	7	8	7	6	5	6	6	6	9	9	9	9	6
chill°C	3	4	4	4	3	4	6	4	3	2	2	3	4	3	5	7	6	6	2

Freezing level (m)	1450	1250	1150	1450	1400	1750	2200	2050	1700	1600	1250	1400	1500	1900	2150	2000	2100	2050	1650
Cloud base (m)	650	2350	700	450	450	400	400	400	400	400	450	400	400	600	400	450	450	400	450

	—	7:35	—	—	7:37	—	—	7:37	—	—	7:39	—	—	7:39	—	—	7:41	—	—
	—	—	4:16	—	—	4:15	—	—	4:15	—	—	4:15	—	—	4:15	—	—	4:15	—

Mount Si Weather (Days 0-3):

The weather forecast for Mount Si is: Heavy rain (total 53mm), heaviest during Thu night. Mild temperatures (max 9°C on Fri morning, min 3°C on Tue night). Winds increasing (calm on Tue night, fresh winds from the WSW by Fri morning).

Mount Si Weather (Days 3-6):

Heavy rain (total 65mm), heaviest during Mon afternoon. Very mild (max 10°C on Mon morning, min 5°C on Sat morning). Winds increasing (light winds from the S on Sat night, fresh winds from the SW by Mon afternoon).

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. 33 minutes ago	6° C	Dry	Calm (0 kph at 252).
Black Diamond 32 km SSW 192m alt. 1 hour ago		-	Calm (0 kph at 0).
Renton Airport 36 km WSW 218m alt. 2 hours ago	7° C	Dry and cloudy.	Wind obs. (7 kph from 350 degs) was rejected.	16 km Low: overcast
Auburn 39 km SW 119m alt. 1 hour ago	-3° C	-	Calm (0 kph at 151).
Stampede Pass Airport 40 km SE 628m alt. 2 hours ago	-2° C	Dry and cloudy.	Calm (0 kph at 0).	16 km Low: overcast
Seattl / oeing Airport 44 km WSW 218m alt. 2 hours ago	7° C	Dry and cloudy.	Calm (0 kph at 0).	16 km Low: overcast
Seattle Tacoma International Airport 44 km WSW 218m alt. 2 hours ago	6° C	Dry and cloudy.	Light winds from the N (6 kph at 350).	16 km Low: overcast
Snohomish 49 km NW 196m alt. 58 minutes ago	4° C	Dry	Calm (2 kph at 198).
Seattle 49 km WSW 100m alt. 1 hour ago	6° C	-
SHIP1485 54 km W -m alt. 39 minutes ago	7° C	-	Calm (2 kph at 10).

* 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.