– Lat/Long: 47.51° N 121.74° W

Mount Si
Weather Forecast, United States
Issued: 4 pm Sun 07 Jun Local Time
Updates in:
hr min s
Update imminent

Issued: 4 pm Sun 07 Jun Local Time

Updates in:

hr min s

Update imminent

2 Mount Si Elevations: 2 Forecast Elevations:

	Days 1–4 Weather Summary Heavy rain (total 55mm), heaviest during Mon night. Mild temperatures (max 8°C on Mon morning, min 2°C on Tue night). Winds increasing (calm on Sun night, strong winds from the WSW by Tue afternoon).											Days 5–7 Weather Summary Some drizzle, heaviest during Wed afternoon. Very mild (max 12°C on Sat morning, min 4°C on Wed afternoon). Wind will be generally light.
	Sun 7		Monday 8			Tuesday 9			Wednesday 10			Thursday 11			Friday 12
	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	rain shwrs	some clouds	cloudy	light rain	heavy rain	heavy rain	rain shwrs	rain shwrs	rain shwrs	rain shwrs	clear	clear	clear	clear	clear	clear	clear
km/h	W	SW	ESE	ESE	SSW	WSW	WSW	WSW	WNW	NW	NNW	NNW	NNW	NNW	NW	NNW	N
See all weather maps
cm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
mm	0.8	—	—	2	28	15	5	1.7	1.6	1.3	—	—	—	—	—	—	—
max °C	5	6	8	8	6	4	5	3	2	6	5	8	11	10	8	11	10
min °C	4	5	7	6	5	4	4	2	2	4	5	7	10	8	8	10	9
chill °C	2	5	5	1	1	0	-2	-5	-2	0	3	5	8	5	6	8	7

Freezing level m	2200	2300	2400	2350	2300	1950	1950	1550	1600	2400	3400	3150	3300	3550	3100	2950	3000
Cloud base (m)	850	6450	3050	2200	350	400	450	450	500	850

	—	—	5:09	—	—	5:09	—	—	5:09	—	—	5:09	—	—	5:09	—	—
	—	9:00	—	—	9:00	—	—	9:01	—	—	9:02	—	—	9:02	—	—	9:04

Mount Si Weather (Days 0-3):

The weather forecast for Mount Si is: Heavy rain (total 55mm), heaviest during Mon night. Mild temperatures (max 8°C on Mon morning, min 2°C on Tue night). Winds increasing (calm on Sun night, strong winds from the WSW by Tue afternoon).

Mount Si Weather (Days 3-6):

Some drizzle, heaviest during Wed afternoon. Very mild (max 12°C on Sat morning, min 4°C on Wed afternoon). Wind will be generally light.

This table gives the weather forecast for Mount Si at the specific elevation of 1270 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. 49 minutes ago	15° C	Dry	Calm (0 kph at 264).
Snoqualmie Pass 30 km ESE 824m alt. 1 hour ago	10° C	-	Calm (0 kph at 316).
Renton 30 km WSW 160m alt. 1 hour ago	17° C	Dry	Calm (0 kph at 143).
Black Diamond 32 km SSW 192m alt. 1 hour ago		-	Calm (3 kph at 0).
Grotto wx 35 km NE 321m alt. 1 hour ago	13° C	Dry	Calm (0 kph at 151).
Renton Airport 36 km WSW 218m alt. 3 hours ago	19° C	Clear	Light winds from the SSW (11 kph at 210).	16 km
Auburn 39 km SW 119m alt. 45 minutes ago		-	Calm (0 kph at 266).
Stampede Pass Airport 40 km SE 628m alt. 2 hours ago	8° C	Dry and partly cloudy.	Wind obs. (9 kph from 1 degs) was rejected.	16 km Low: scattered
SHIP7095 43 km W 15m alt. 3 hours ago				- km
Woodinville 43 km WNW 137.2m alt. 1 hour ago	13° C	Dry	Wind obs. (11 kph from 260 degs) was rejected.

* 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.