– Lat/Long: 47.51° N 121.74° W

Mount Si
Weather Forecast, United States
Issued: 10 pm Fri 26 Jun Local Time
Updates in:
hr min s
Update imminent

Issued: 10 pm Fri 26 Jun Local Time

Updates in:

hr min s

Update imminent

2 Mount Si Elevations: 2 Forecast Elevations:

	Days 1–4 Weather Summary Light rain (total 9mm), mostly falling on Fri night. Very mild (max 13°C on Sat afternoon, min 8°C on Fri night). Wind will be generally light.										Days 5–7 Weather Summary Some drizzle, heaviest during Mon night. Very mild (max 17°C on Thu afternoon, min 7°C on Wed night). Wind will be generally light.
		Saturday 27			Sunday 28			Monday 29			Tuesday 30			Wednesday 1			Thursday 2
	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	rain shwrs	light rain	rain shwrs	rain shwrs	light rain	light rain	rain shwrs	light rain	light rain	light rain	cloudy	rain shwrs	rain shwrs	light rain	rain shwrs	rain shwrs	some clouds	some clouds	some clouds
km/h	SW	WSW	NW	W	WSW	WSW	WNW	W	NW	W	W	WSW	SW	SW	WSW	S	WNW	WNW	E
See all weather maps
cm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
mm	4	1.4	1.5	0.4	0.1	0.3	0.7	0.1	0.1	0.2	—	0.2	0.4	0.2	0.2	0.2	—	—	—
max °C	12	9	13	13	10	12	12	10	13	13	11	13	13	9	12	12	13	17	16
min °C	8	9	11	10	10	12	9	10	11	11	11	12	8	9	11	7	10	15	9
chill °C	7	7	11	10	10	11	9	10	11	11	11	12	7	8	10	7	10	15	9

Freezing level m	2050	1900	2300	2550	2850	2750	3450	3350	3450	3400	3050	2850	2500	1950	2450	2250	2400	2850	2750
Cloud base (m)	850	700	900	1800	550	600	500	450	550	700	650	700	500	700	850	1650	1750	1800	6100

	—	5:11	—	—	5:11	—	—	5:11	—	—	5:11	—	—	5:13	—	—	5:13	—	—
	—	—	—	9:07	—	—	9:07	—	—	9:07	—	—	9:07	—	—	9:07	—	—	9:07

Mount Si Weather (Days 0-3):

The weather forecast for Mount Si is: Light rain (total 9mm), mostly falling on Fri night. Very mild (max 13°C on Sat afternoon, min 8°C on Fri night). Wind will be generally light.

Mount Si Weather (Days 3-6):

Some drizzle, heaviest during Mon night. Very mild (max 17°C on Thu afternoon, min 7°C on Wed 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. 2 hours ago	11° C	Dry	Calm (0 kph at 262).
Snoqualmie Pass 30 km ESE 824m alt. 41 minutes ago	8° C	-	Calm (0 kph at 188).
Renton 30 km WSW 160m alt. 52 minutes ago	12° C	Dry	Calm (2 kph at 153).
Grotto wx 35 km NE 321m alt. 49 minutes ago	10° C	Dry	Calm (3 kph at 269).
Renton Airport 36 km WSW 218m alt. 2 hours ago	13° C	Dry and partly cloudy.	Light winds from the SSE (6 kph at 150).	16 km Low: scattered Mid: broken
Grotto wx 39 km NE 1101m alt. 47 minutes ago	6° C	Dry	Calm (0 kph at 189).
Auburn 39 km SW 119m alt. 2 hours ago	14° C	Dry	Calm (0 kph at 92).
Stampede Pass Airport 40 km SE 628m alt. 1 hour ago	5° C	-	Wind obs. (7 kph from 1 degs) was rejected.	0.0 km
Woodinville 43 km WNW 137.2m alt. 43 minutes ago	10° C	Dry	Wind obs. (14 kph from 285 degs) was rejected.
Seattl / oeing Airport 44 km WSW 218m alt. 1 hour ago	13° C	Dry and partly cloudy.	Light winds from the S (11 kph at 170).	16 km Low: broken Mid: broken

* 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.