– Lat/Long: 47.51° N 121.74° W

Mount Si
Weather Forecast, United States
Issued: 4 pm Wed 10 Jun Local Time
Updates in:
hr min s
Update imminent

Issued: 4 pm Wed 10 Jun Local Time

Updates in:

hr min s

Update imminent

2 Mount Si Elevations: 2 Forecast Elevations:

	Days 1–4 Weather Summary Some drizzle, heaviest during Wed afternoon. Warm (max 22°C on Sat morning, min 7°C on Wed night). Wind will be generally light.											Days 5–7 Weather Summary Mostly dry. Warm (max 28°C on Mon afternoon, min 17°C on Sat night). Wind will be generally light.
	Wed 10		Thursday 11			Friday 12			Saturday 13			Sunday 14			Monday 15
	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	rain shwrs	clear	clear	clear	clear	clear	clear	clear	clear	clear	clear	clear	clear	clear	clear	some clouds	clear
km/h	NNW	ENE	WNW	NW	N	NW	NW	E	NW	NNW	E	NW	NW	E	NW	NW	E
See all weather maps
cm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
mm	1.3	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
max °C	13	12	14	18	15	15	18	16	22	24	21	25	27	23	26	28	24
min °C	10	7	11	17	9	12	17	13	18	24	17	21	27	19	23	28	17
chill °C	10	7	11	17	9	12	17	13	18	24	17	21	27	19	23	28	17

Freezing level m	2700	3250	3200	3250	3300	3300	3450	3150	3250	3600	3750	4050	4300	4450	4600	4750	4850
Cloud base (m)	800					8850	8500			3250		9100		9150		8200

	—	—	5:09	—	—	5:09	—	—	5:09	—	—	5:09	—	—	5:09	—	—
	—	9:02	—	—	9:02	—	—	9:04	—	—	9:04	—	—	9:05	—	—	9:05

Mount Si Weather (Days 0-3):

The weather forecast for Mount Si is: Some drizzle, heaviest during Wed afternoon. Warm (max 22°C on Sat morning, min 7°C on Wed night). Wind will be generally light.

Mount Si Weather (Days 3-6):

Mostly dry. Warm (max 28°C on Mon afternoon, min 17°C on Sat 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. 46 minutes ago	8° C	Dry	Calm (0 kph at 352).
Snoqualmie Pass 30 km ESE 824m alt. 1 hour ago	6° C	-	Calm (0 kph at 359).
Renton 30 km WSW 160m alt. 53 minutes ago	13° C	Dry	Calm (0 kph at 162).
Black Diamond 32 km SSW 192m alt. 46 minutes ago		-	Calm (3 kph at 0).
Grotto wx 35 km NE 321m alt. 1 hour ago	12° C	Dry	Calm (0 kph at 227).
Renton Airport 36 km WSW 218m alt. 2 hours ago	17° C	Dry and cloudy.	Light winds from the NW (9 kph at 310).	16 km Low: overcast
Grotto wx 39 km NE 1101m alt. 2 hours ago	4° C	Dry	Calm (0 kph at 89).
Auburn 39 km SW 119m alt. 1 hour ago	19° C	Dry	Calm (0 kph at 289).
Stampede Pass Airport 40 km SE 628m alt. 2 hours ago	6° C	Dry and partly cloudy.	Light winds from the N (6 kph at 1).	16 km Low: scattered
SHIP3883 43 km W 3m alt. 2 hours ago

* 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.