– Lat/Long: 47.51° N 121.74° W

Mount Si
Weather Forecast, United States
Issued: 10 am Sat 14 Jun Local Time
Updates in:
hr min s
Update imminent

Issued: 10 am Sat 14 Jun Local Time

Updates in:

hr min s

Update imminent

2 Mount Si Elevations: 2 Forecast Elevations:

	Days 1–3 Weather Summary Mostly dry. Very mild (max 12°C on Sun afternoon, min 3°C on Sat morning). Wind will be generally light.									Days 4–6 Weather Summary Mostly dry. Very mild (max 13°C on Tue afternoon, min 3°C on Thu night). Wind will be generally light.
	Saturday 14			Sunday 15			Monday 16			Tuesday 17			Wednesday 18			Thursday 19
	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	rain shwrs	clear	clear	clear	some clouds	clear	some clouds	some clouds	clear	some clouds	clear	some clouds	light rain	rain shwrs	clear	some clouds	cloudy	light rain
km/h	NW	NW	NNW	N	NW	W	W	WNW	NW	WSW	W	SSW	WSW	W	WNW	SW	W	WSW
See all weather maps
cm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
mm	0.1	—	—	—	—	—	—	—	—	—	—	—	0.2	0.2	—	—	—	0.1
max°C	4	9	8	8	12	12	9	11	11	8	13	11	6	11	9	6	10	8
min°C	3	6	6	7	11	9	9	10	7	7	11	6	6	8	5	5	8	3
chill°C	1	5	4	5	11	8	8	9	6	6	10	3	3	6	5	3	6	-1

Freezing level (m)	2500	3100	3100	3100	3450	3500	3250	3200	3250	3100	3050	2750	2800	2800	3100	2950	2800	2050
Cloud base (m)	550	750		9300	7100	8150		5850		6850	2350	2000	750	950	8600		2200	700

	5:09	—	—	5:09	—	—	5:09	—	—	5:09	—	—	5:09	—	—	5:09	—	—
	—	—	9:05	—	—	9:05	—	—	9:06	—	—	9:06	—	—	9:07	—	—	9:07

Mount Si Weather (Days 0-3):

The weather forecast for Mount Si is: Mostly dry. Very mild (max 12°C on Sun afternoon, min 3°C on Sat morning). Wind will be generally light.

Mount Si Weather (Days 3-6):

Mostly dry. Very mild (max 13°C on Tue afternoon, min 3°C on Thu night). Wind will be generally light.

This table gives the weather forecast for Mount Si at the specific elevation of 1270 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 5 closest weather stations

Weather Station	Temp.	Weather	Wind	Cloud Visibility Cloud / Visibility
Harman Heights wx 6 km SSW 251m alt. 54 minutes ago	17° C	Dry	Calm (0 kph at 173).
Black Diamond 32 km SSW 192m alt. 41 minutes ago		-	Wind obs. (6 kph from 360 degs) was rejected.
Renton Airport 36 km WSW 218m alt. 2 hours ago	14° C	Dry and cloudy.	Calm (0 kph at 0).	16 km Low: overcast
Auburn 39 km SW 119m alt. 2 hours ago		-	Calm (2 kph at 92).
Stampede Pass Airport 40 km SE 628m alt. 1 hour ago	4° C	Mist -.	Wind obs. (6 kph from 1 degs) was rejected.	5 km Low: overcast
SHIP290 43 km W -m alt. 2 hours ago	17° C	No report.	Light winds from the S (6 kph at 190).
SHIP8380 43 km W 15m alt. 3 hours ago			Light winds from the S (10 kph at 180).	- km
SHIP919 43 km W -m alt. 2 hours ago	17° C	No report.	Light winds from the SSE (6 kph at 160).
SHIP10111 43 km W 15m alt. 3 hours ago			Light winds from the S (10 kph at 180).	- km
SHIP3896 43 km W 15m alt. 3 hours ago			Light winds from the S (10 kph at 180).	- 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.