– Lat/Long: 47.51° N 121.74° W

Mount Si
Weather Forecast, United States
Issued: 10 am Sun 21 Jun Local Time
Updates in:
hr min s
Update imminent

Issued: 10 am Sun 21 Jun Local Time

Updates in:

hr min s

Update imminent

2 Mount Si Elevations: 2 Forecast Elevations:

	Days 1–3 Weather Summary Mostly dry. Warm (max 27°C on Tue afternoon, min 13°C on Sun morning). Wind will be generally light.									Days 4–6 Weather Summary Moderate rain (total 19mm), heaviest on Fri morning. Warm (max 22°C on Wed afternoon, min 9°C on Fri night). Wind will be generally light.
	Sunday 21			Monday 22			Tuesday 23			Wednesday 24			Thursday 25			Friday 26
	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	some clouds	clear	clear	clear	clear	some clouds	some clouds	clear	clear	some clouds	some clouds	some clouds	some clouds	some clouds	mod. rain	light rain	light rain	rain shwrs
km/h	NW	NW	ENE	NW	NW	ESE	W	WNW	SE	W	WSW	SSW	SW	W	SW	SW	SW	SW
See all weather maps
cm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
mm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	6	5	1.9	6
max °C	16	21	19	22	25	22	23	27	23	20	22	19	16	18	13	12	11	11
min °C	13	19	14	18	24	18	21	26	16	17	21	10	12	17	12	11	11	9
chill °C	13	19	14	18	24	18	21	26	16	17	21	10	12	17	11	9	9	7

Freezing level m	3300	3450	3500	3500	3750	3700	3600	3700	3750	3600	3600	3500	3550	3350	3250	2400	2300	2000
Cloud base (m)	700			8850		3750			9400		6800	9050	5350	3000	400	400	400	700

	5:09	—	—	5:09	—	—	5:09	—	—	5:09	—	—	5:09	—	—	5:11	—	—
	—	—	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: Mostly dry. Warm (max 27°C on Tue afternoon, min 13°C on Sun morning). Wind will be generally light.

Mount Si Weather (Days 3-6):

Moderate rain (total 19mm), heaviest on Fri morning. Warm (max 22°C on Wed afternoon, min 9°C on Fri 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	21° C	Dry	Calm (0 kph at 278).
Snoqualmie Pass 30 km ESE 824m alt. 36 minutes ago	21° C	-	Calm (0 kph at 232).
Renton 30 km WSW 160m alt. 1 hour ago	17° C	Dry	Calm (2 kph at 305).
Grotto wx 35 km NE 321m alt. 2 hours ago	15° C	Dry	Calm (3 kph at 97).
Renton Airport 36 km WSW 218m alt. 2 hours ago	17° C	Clear	Light winds from the N (7 kph at 0).	16 km
Grotto wx 39 km NE 1101m alt. 3 hours ago	12° C	Dry	Calm (2 kph at 153).
Auburn 39 km SW 119m alt. 43 minutes ago		-	Calm (0 kph at 215).
Stampede Pass Airport 40 km SE 628m alt. 2 hours ago	12° C	Clear	Wind obs. (7 kph from 1 degs) was rejected.	16 km
Woodinville 43 km WNW 137.2m alt. 1 hour ago	21° C	Dry	Calm (3 kph at 6).
Seattl / oeing Airport 44 km WSW 218m alt. 2 hours ago	17° C	Clear	Light winds from the SE (6 kph at 130).	16 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.