– Lat/Long: 47.51° N 121.74° W

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

Issued: 4 am Sun 07 Jun Local Time

Updates in:

hr min s

Update imminent

2 Mount Si Elevations: 2 Forecast Elevations:

	Days 1–3 Weather Summary Heavy rain (total 52mm), heaviest during Tue morning. Very mild (max 15°C on Mon afternoon, min 6°C on Sun morning). Wind will be generally light.									Days 4–6 Weather Summary Some drizzle, heaviest during Wed morning. Warm (max 21°C on Fri afternoon, min 6°C on Wed night). Wind will be generally light.
	Sunday 7			Monday 8			Tuesday 9			Wednesday 10			Thursday 11			Friday 12
	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	light rain	rain shwrs	some clouds	some clouds	light rain	heavy rain	heavy rain	light rain	light rain	rain shwrs	rain shwrs	clear	clear	clear	clear	clear	clear	clear
km/h	SW	W	ESE	NE	SE	SW	WSW	WSW	WSW	WNW	NW	ESE	NW	NW	NE	NW	NW	ESE
See all weather maps
cm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
mm	1.1	0.7	—	—	0.5	29	14	4	3	1.1	0.4	—	—	—	—	—	—	—
max °C	7	11	11	14	15	10	9	11	8	9	13	12	13	17	14	17	21	18
min °C	6	11	7	12	13	9	9	9	7	7	12	6	10	16	9	14	20	15
chill °C	4	11	6	12	13	9	6	6	4	6	12	6	10	16	9	14	20	15

Freezing level m	1450	2100	2300	2350	2400	2200	1900	1950	1550	1850	2850	2800	2750	2900	3500	3700	3950	4100
Cloud base (m)	500	800		3250	2400	400	400	550	400	650	950	1800				9450

	5:09	—	—	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 52mm), heaviest during Tue morning. Very mild (max 15°C on Mon afternoon, min 6°C on Sun morning). Wind will be generally light.

Mount Si Weather (Days 3-6):

Some drizzle, heaviest during Wed morning. Warm (max 21°C on Fri 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. 49 minutes ago	9° C	Dry	Calm (0 kph at 342).
Snoqualmie Pass 30 km ESE 824m alt. 1 hour ago	4° C	-	Calm (0 kph at 205).
Renton 30 km WSW 160m alt. 56 minutes ago	8° C	Dry	Calm (0 kph at 139).
Black Diamond 32 km SSW 192m alt. 2 hours ago		-	Calm (0 kph at 0).
Kent 34 km SW 135.9m alt. 2 hours ago	7° C	Dry	Calm (0 kph at 192).
Grotto wx 35 km NE 321m alt. 1 hour ago	7° C	Dry	Calm (0 kph at 288).
Renton Airport 36 km WSW 218m alt. 3 hours ago	9° C	Dry and cloudy.	Light winds from the SSE (6 kph at 160).	16 km Low: overcast
Grotto wx 39 km NE 1101m alt. 43 minutes ago	2° C	-	Calm (0 kph at 59).
Auburn 39 km SW 119m alt. 39 minutes ago	12° C	Dry	Calm (0 kph at 63).
Stampede Pass Airport 40 km SE 628m alt. 2 hours ago	1° C	Mist -.	Wind obs. (7 kph from 1 degs) was rejected.	1 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.