– Lat/Long: 47.51° N 121.74° W

Mount Si
Weather Forecast, United States
Issued: 10 am Sat 13 Jun Local Time
Updates in:
hr min s
Update imminent

Issued: 10 am Sat 13 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 Sun afternoon, min 13°C on Mon night). Wind will be generally light.									Days 4–6 Weather Summary Mostly dry. Warm (max 21°C on Thu afternoon, min 8°C on Tue night). Wind will be generally light.
	Saturday 13			Sunday 14			Monday 15			Tuesday 16			Wednesday 17			Thursday 18
	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	clear	clear	clear	clear	clear	clear	some clouds	clear	clear	cloudy	rain shwrs	rain shwrs	some clouds	clear	clear	clear	some clouds	some clouds
km/h	NW	NNW	ESE	NW	NW	ENE	W	WNW	SSW	SW	WNW	NNE	NW	NW	NNE	NW	NW	NNE
See all weather maps
cm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
mm	—	—	—	—	—	—	—	—	—	—	0.1	0.1	—	—	—	—	—	—
max °C	22	24	21	25	27	24	25	26	22	15	19	15	14	20	17	17	21	18
min °C	18	24	17	21	27	19	22	26	13	15	16	8	11	18	11	14	21	13
chill °C	18	24	17	21	27	19	22	26	12	14	16	8	11	18	11	14	21	13

Freezing level m	3400	3800	3750	4000	4300	4550	4500	4450	4200	4100	3900	4000	3900	3950	4300	4300	4350	4250
Cloud base (m)		9200		9600		9050	6000	5000		800	800		650				7250	6400

	5:09	—	—	5:09	—	—	5:09	—	—	5:09	—	—	5:09	—	—	5:09	—	—
	—	—	9:04	—	—	9:05	—	—	9:05	—	—	9:06	—	—	9:06	—	—	9:07

Mount Si Weather (Days 0-3):

The weather forecast for Mount Si is: Mostly dry. Warm (max 27°C on Sun afternoon, min 13°C on Mon night). Wind will be generally light.

Mount Si Weather (Days 3-6):

Mostly dry. Warm (max 21°C on Thu afternoon, min 8°C on Tue 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. 2 hours ago	28° C	Dry	Calm (0 kph at 271).
Snoqualmie Pass 30 km ESE 824m alt. 50 minutes ago	27° C	-	Calm (0 kph at 19).
Renton 30 km WSW 160m alt. 50 minutes ago	29° C	Dry	Calm (5 kph at 23).
Black Diamond 32 km SSW 192m alt. 25 minutes ago		-	Wind obs. (10 kph from 255 degs) was rejected.
Grotto wx 35 km NE 321m alt. 48 minutes ago	28° C	Dry	Light winds from the W (18 kph at 260).
Renton Airport 36 km WSW 218m alt. 2 hours ago	27° C	Clear	Moderate winds from the NNW (24 kph at 330).	16 km
Grotto wx 39 km NE 1101m alt. 26 minutes ago	22° C	Dry	Calm (2 kph at 98).
Auburn 39 km SW 119m alt. 2 hours ago		-	Calm (0 kph at 75).
Stampede Pass Airport 40 km SE 628m alt. 2 hours ago	22° C	Clear	Light winds from the N (6 kph at 1).	16 km
SHIP4390 43 km W 15m alt. 2 hours ago				- 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.