– Lat/Long: 47.51° N 121.74° W

Mount Si Weather Forecast

Cascade Range · United States

Issued: 10 am Tue 20 Oct Local Time

Updates in:

hr min s

Update imminent

Issued: 10 am Tue 20 Oct 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 18°C on Wed afternoon, min 5°C on Thu night). Wind will be generally light.									Days 4–6 Weather Summary Mostly dry. Very mild (max 16°C on Sun afternoon, min 5°C on Fri morning). Wind will be generally light.
	Tuesday 20			Wednesday 21			Thursday 22			Friday 23			Saturday 24			Sunday 25
	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	clear	clear	clear	clear	clear	clear	clear	some clouds	rain shwrs	some clouds	rain shwrs	clear	some clouds	some clouds	some clouds	some clouds	some clouds	some clouds
Cloud base (m)	7050					8150	8000	800	850	550	750				6750	6400	7050
km/h	E	ENE	ESE	WSW	W	SSE	NW	NW	NW	NNW	NNW	E	NW	NNW	ENE	E	NNE	ESE
See all weather maps
cm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
mm	—	—	—	—	—	—	—	—	0.1	—	0.1	—	—	—	—	—	—	—
max °C	15	17	13	16	18	13	11	12	8	7	8	5	11	13	10	14	16	11
min °C	9	16	12	12	17	10	9	10	5	5	7	5	6	12	9	9	14	9
chill °C	8	16	12	12	17	10	9	9	3	3	6	5	5	12	9	9	14	8

Freezing level m	3100	3200	3200	3100	3150	3100	2950	2300	1550	1400	1750	2850	3150	3100	3200	3250	3250	3350

	7:31	—	—	7:33	—	—	7:35	—	—	7:35	—	—	7:37	—	—	7:39	—	—
	—	6:09	—	—	6:07	—	—	6:06	—	—	6:05	—	—	6:02	—	—	6:00	—

Mount Si Weather (Days 0-3):

The weather forecast for Mount Si is: Mostly dry. Very mild (max 18°C on Wed afternoon, min 5°C on Thu night). Wind will be generally light.

Mount Si Weather (Days 3-6):

Mostly dry. Very mild (max 16°C on Sun afternoon, min 5°C on Fri morning). 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
Renton Airport 36 km WSW 218m alt. 2 hours ago	12°C	Clear	Light winds from the N (15 kph at 0).	16 km
Seattl / oeing Airport 44 km WSW 218m alt. 2 hours ago	13°C	Clear	Light winds from the N (7 kph at 1).	16 km
Seattle Tacoma International Airport 44 km WSW 218m alt. 2 hours ago	13°C	-	Moderate winds from the N (22 kph at 10).	16 km Low: few
BUOY-EBSW1 46 km W 3m alt. 53 minutes ago
BUOY-WPOW1 55 km W 3m alt. 1 hour ago	12°C		Fresh winds from the N (30 kph at 0).
BUOY-TCNW1 57 km SW 3m alt. 53 minutes ago
BUOY-TCMW1 57 km SW 3m alt. 53 minutes ago			Calm (5 kph at 0).
Pierce County Airport - Thun Field - Puyallup (Washington) 61 km SSW 164m alt. 1 hour ago	13°C	Drizzle	Calm (0 kph at 0).	16 km Low: few
Everett Airport 61 km WNW 218m alt. 2 hours ago	11°C	Clear	Light winds from the NNW (19 kph at 340).	16 km
BUOY-BMTW1 67 km WSW 3m alt. 53 minutes ago			Light winds from the S (11 kph at 190).

* 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.