– Lat/Long: 47.51° N 121.74° W

Mount Si
Weather Forecast, United States
Issued: 4 pm Fri 05 Jun Local Time
Updates in:
hr min s
Update imminent

Issued: 4 pm Fri 05 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 22mm), heaviest during Mon morning. Very mild (max 13°C on Sun afternoon, min 6°C on Fri night). Wind will be generally light.											Days 5–7 Weather Summary Moderate rain (total 18mm), heaviest on Mon night. Very mild (max 12°C on Mon afternoon, min 6°C on Wed night). Wind will be generally light.
	Fri 5		Saturday 6			Sunday 7			Monday 8			Tuesday 9			Wednesday 10
	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	rain shwrs	rain shwrs	light rain	rain shwrs	rain shwrs	light rain	light rain	light rain	light rain	light rain	light rain	mod. rain	light rain	light rain	light rain	rain shwrs	rain shwrs
km/h	SW	SW	WSW	SW	SW	SW	WSW	SSE	SE	W	SW	SW	W	SW	SW	W	NE
See all weather maps
cm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
mm	3	3	2	3	2	0.7	0.1	3	5	0.3	5	5	3	3	1	0.9	0.1
max °C	10	9	6	7	7	7	13	12	9	12	11	7	9	9	8	10	10
min °C	9	6	6	7	6	6	10	8	8	10	8	7	8	7	7	9	6
chill °C	7	4	5	6	6	4	10	8	7	10	7	5	7	6	5	8	6

Freezing level m	1800	1350	1350	1500	1500	1400	2250	1850	1900	2200	1950	1600	1900	1750	1650	1850	2450
Cloud base (m)	700	750	550	450	700	500	800	400	400	500	400	400	450	450	400	550	1850

	—	—	5:11	—	—	5:09	—	—	5:09	—	—	5:09	—	—	5:09	—	—
	—	8:59	—	—	9:00	—	—	9:00	—	—	9:00	—	—	9:01	—	—	9:02

Mount Si Weather (Days 0-3):

The weather forecast for Mount Si is: Heavy rain (total 22mm), heaviest during Mon morning. Very mild (max 13°C on Sun afternoon, min 6°C on Fri night). Wind will be generally light.

Mount Si Weather (Days 3-6):

Moderate rain (total 18mm), heaviest on Mon night. Very mild (max 12°C on Mon afternoon, min 6°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. 1 hour ago	11° C	Dry	Calm (0 kph at 328).
Snoqualmie Pass 30 km ESE 824m alt. 28 minutes ago	9° C	-	Calm (0 kph at 184).
Renton 30 km WSW 160m alt. 2 hours ago	13° C	Dry	Calm (3 kph at 144).
Black Diamond 32 km SSW 192m alt. 1 hour ago		-	Wind obs. (10 kph from 305 degs) was rejected.
Grotto wx 35 km NE 321m alt. 2 hours ago	13° C	Dry	Calm (3 kph at 119).
Renton Airport 36 km WSW 218m alt. 2 hours ago	16° C	Dry and partly cloudy.	Light winds from the N (11 kph at 1).	16 km Low: scattered Mid: scattered High: broken
Grotto wx 39 km NE 1101m alt. 54 minutes ago	5° C	Dry	Calm (0 kph at 29).
Auburn 39 km SW 119m alt. 1 hour ago		-	Calm (0 kph at 258).
Stampede Pass Airport 40 km SE 628m alt. 2 hours ago	5° C	Dry and cloudy.	Wind obs. (9 kph from 1 degs) was rejected.	16 km Low: broken Mid: overcast
Woodinville 43 km WNW 137.2m alt. 29 minutes ago	12° C	Dry	Wind obs. (16 kph from 293 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.