– 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. Very mild (max 16°C on Sat morning, min 4°C on Wed afternoon). Wind will be generally light.											Days 5–7 Weather Summary Mostly dry. Warm (max 21°C on Mon morning, min 15°C on Tue morning). 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	NNW	NW	NW	NNW	NNW	NNW	NE	ESE	N	E	SE	NNW	N	NNW	NW	NNW
See all weather maps
cm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
mm	1.3	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
max °C	6	5	7	11	10	8	12	13	16	17	18	19	20	20	21	21	20
min °C	4	4	6	10	7	8	10	11	15	17	17	18	20	18	19	21	16
chill °C	1	2	4	9	4	6	8	11	15	17	17	18	20	18	19	21	16

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. Very mild (max 16°C on Sat morning, min 4°C on Wed afternoon). Wind will be generally light.

Mount Si Weather (Days 3-6):

Mostly dry. Warm (max 21°C on Mon morning, min 15°C on Tue morning). 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 10 closest weather stations

Weather Station	Temp.	Weather	Wind	Cloud Visibility Cloud / Visibility
Harman Heights wx 6 km SSW 251m alt. 25 minutes ago	10° C	Dry	Calm (0 kph at 352).
Snoqualmie Pass 30 km ESE 824m alt. 56 minutes ago	7° C	-	Calm (0 kph at 77).
Renton 30 km WSW 160m alt. 2 hours ago	16° C	Dry	Calm (0 kph at 8).
Black Diamond 32 km SSW 192m alt. 47 minutes ago		-	Calm (5 kph at 0).
Grotto wx 35 km NE 321m alt. 26 minutes ago	12° C	Dry	Calm (0 kph at 227).
Renton Airport 36 km WSW 218m alt. 2 hours ago	17° C	Clear	Light winds from the N (7 kph at 350).	16 km
Grotto wx 39 km NE 1101m alt. 1 hour ago	4° C	Dry	Calm (0 kph at 89).
Auburn 39 km SW 119m alt. 1 hour ago		-	Calm (0 kph at 289).
Stampede Pass Airport 40 km SE 628m alt. 2 hours ago	6° C	-	Light winds from the N (9 kph at 1).	16 km Low: few
SHIP9915 43 km W 15m alt. 3 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.