– Lat/Long: 47.51° N 121.74° W

Mount Si
Weather Forecast, United States
Issued: 4 pm Sat 01 Aug Local Time
Updates in:
hr min s
Update imminent

Issued: 4 pm Sat 01 Aug Local Time

Updates in:

hr min s

Update imminent

2 Mount Si Elevations: 2 Forecast Elevations:

	Days 1–4 Weather Summary Light rain (total 5mm), mostly falling on Sat afternoon. Warm (max 24°C on Tue morning, min 9°C on Sun night). Wind will be generally light.											Days 5–7 Weather Summary Mostly dry. Warm (max 30°C on Thu afternoon, min 18°C on Tue night). Wind will be generally light.
	Sat 1		Sunday 2			Monday 3			Tuesday 4			Wednesday 5			Thursday 6
	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	rain shwrs	rain shwrs	rain shwrs	rain shwrs	clear	clear	clear	clear	clear	clear	clear	clear	clear	clear	clear	clear	clear
Cloud base (m)	450	700	700	900
km/h	SW	WSW	W	NNW	ENE	NW	NW	ESE	NW	NW	E	WNW	NW	E	WNW	NW	E
See all weather maps
cm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
mm	3	1.6	0.2	0.1	—	—	—	—	—	—	—	—	—	—	—	—	—
max °C	17	13	12	16	14	18	23	19	24	27	23	26	29	24	27	30	25
min °C	13	10	10	16	9	14	22	16	20	27	18	22	28	20	22	29	19
chill °C	12	9	10	16	9	14	22	16	20	27	18	22	28	20	22	29	19

Freezing level m	2600	2800	2650	2600	3450	3550	3900	4050	4100	4350	4500	4550	4750	4750	4900	5050	5000

	—	—	5:45	—	—	5:46	—	—	5:48	—	—	5:48	—	—	5:50	—	—
	—	8:40	—	—	8:39	—	—	8:37	—	—	8:37	—	—	8:35	—	—	8:34

Mount Si Weather (Days 0-3):

The weather forecast for Mount Si is: Light rain (total 5mm), mostly falling on Sat afternoon. Warm (max 24°C on Tue morning, min 9°C on Sun night). Wind will be generally light.

Mount Si Weather (Days 3-6):

Mostly dry. Warm (max 30°C on Thu afternoon, min 18°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
Renton 30 km WSW 160m alt. 2 hours ago	21° C	Dry	Wind obs. (14 kph from 199 degs) was rejected.
Black Diamond 32 km SSW 192m alt. 1 hour ago		-	Light winds from the W (6 kph at 278).
Renton Airport 36 km WSW 218m alt. 2 hours ago	23° C	Clear	Moderate winds from the SW (22 kph at 220).	16 km
Auburn 39 km SW 119m alt. 1 hour ago		-	Calm (0 kph at 134).
Stampede Pass Airport 40 km SE 628m alt. 2 hours ago	11° C	Dry and partly cloudy.	Light winds from the W.(Wind varies from 210 to 310 degs) (13 kph at 260).	16 km Low: few Mid: scattered High: broken
Seattl / oeing Airport 44 km WSW 218m alt. 2 hours ago	23° C	-	Moderate winds from the SSW.(Wind varies from 170 to 240 degs) (20 kph at 210).	16 km Low: few
Seattle Tacoma International Airport 44 km WSW 218m alt. 2 hours ago	22° C	Dry and partly cloudy.	Moderate winds from the SSW (28 kph at 210).	16 km Low: scattered Mid: scattered
BUOY-EBSW1 46 km W 3m alt. 1 hour ago
Snohomish 49 km NW 196m alt. 2 hours ago	19° C	Dry	Wind obs. (8 kph from 190 degs) was rejected.
Seattle 49 km WSW 100m 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.