– Lat/Long: 47.51° N 121.74° W

Mount Si
Weather Forecast, United States
Issued: 4 am Thu 14 May Local Time
Updates in:
hr min s
Update imminent

Issued: 4 am Thu 14 May Local Time

Updates in:

hr min s

Update imminent

2 Mount Si Elevations: 2 Forecast Elevations:

	Days 1–3 Weather Summary Heavy rain (total 37mm), heaviest during Fri night. Very mild (max 10°C on Thu afternoon, min 3°C on Sat night). Wind will be generally light.									Days 4–6 Weather Summary Some drizzle, heaviest during Sun morning. Very mild (max 13°C on Tue afternoon, min 5°C on Sun morning). Wind will be generally light.
	Thursday 14			Friday 15			Saturday 16			Sunday 17			Monday 18			Tuesday 19
	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	rain shwrs	light rain	mod. rain	rain shwrs	mod. rain	mod. rain	rain shwrs	rain shwrs	rain shwrs	rain shwrs	rain shwrs	some clouds	some clouds	rain shwrs	rain shwrs	some clouds	rain shwrs	rain shwrs
km/h	SW	SW	SW	SW	SW	SW	WNW	NNW	NNW	NW	NW	E	WNW	NNW	ENE	NNW	NW	NNE
See all weather maps
cm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
mm	1	4	6	1.2	6	9	4	5	0.5	0.4	0.3	—	—	0.1	0.1	—	0.2	0.1
max °C	9	10	6	5	5	5	5	7	6	7	10	9	10	11	11	9	13	11
min °C	7	8	5	5	5	4	4	6	3	5	8	6	7	11	6	8	13	7
chill °C	5	5	2	2	2	1	1	5	3	5	8	6	7	11	6	8	12	7

Freezing level m	1700	1600	1350	1200	1250	1200	1150	1350	1250	1300	1700	1750	1550	2000	2150	2150	2400	3200
Cloud base (m)	750	700	450	700	400	400	450	750	750	700	850		2550	1800	1750	700	900	2150

	5:31	—	—	5:30	—	—	5:28	—	—	5:26	—	—	5:26	—	—	5:24	—	—
	—	—	8:35	—	—	8:37	—	—	8:37	—	—	8:38	—	—	8:39	—	—	8:42

Mount Si Weather (Days 0-3):

The weather forecast for Mount Si is: Heavy rain (total 37mm), heaviest during Fri night. Very mild (max 10°C on Thu afternoon, min 3°C on Sat night). Wind will be generally light.

Mount Si Weather (Days 3-6):

Some drizzle, heaviest during Sun morning. Very mild (max 13°C on Tue afternoon, min 5°C on Sun morning). 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	9° C	Dry	Calm (0 kph at 329).
Snoqualmie Pass 30 km ESE 824m alt. 2 hours ago	6° C	-	Calm (0 kph at 138).
Black Diamond 32 km SSW 192m alt. 2 hours ago		-	Calm (0 kph at 0).
Grotto wx 35 km NE 321m alt. 1 hour ago	8° C	Dry	Calm (0 kph at 41).
Renton Airport 36 km WSW 218m alt. 2 hours ago	12° C	Dry and partly cloudy.	Light winds from the S (13 kph at 170).	16 km Low: broken Mid: broken
Grotto wx 39 km NE 1101m alt. 1 hour ago	3° C	Dry	Calm (0 kph at 92).
Auburn 39 km SW 119m alt. 2 hours ago	11° C	Dry	Calm (0 kph at 276).
Stampede Pass Airport 40 km SE 628m alt. 1 hour ago	3° C	Fog -.	Light winds from the W.(Wind varies from 250 to 310 degs) (13 kph at 280).	0 km
Woodinville 43 km WNW 137.2m alt. 2 hours ago	7° C	Dry	Calm (2 kph at 347).
Seattl / oeing Airport 44 km WSW 218m alt. 2 hours ago	12° C	Dry and cloudy.	Light winds from the S (19 kph at 170).	16 km Low: scattered Mid: broken High: overcast

* 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.