– Lat/Long: 47.51° N 121.74° W

Mount Si
Weather Forecast, United States
Issued: 10 am Wed 02 Sep Local Time
Updates in:
hr min s
Update imminent

Issued: 10 am Wed 02 Sep Local Time

Updates in:

hr min s

Update imminent

2 Mount Si Elevations: 2 Forecast Elevations:

	Days 1–3 Weather Summary Moderate rain (total 17mm), heaviest on Wed night. Very mild (max 15°C on Wed morning, min 9°C on Wed night). Wind will be generally light.									Days 4–6 Weather Summary Some drizzle, heaviest during Sat morning. Warm (max 21°C on Mon afternoon, min 10°C on Sat morning). Wind will be generally light.
	Wednesday 2			Thursday 3			Friday 4			Saturday 5			Sunday 6			Monday 7
	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	rain shwrs	light rain	rain shwrs	light rain	light rain	rain shwrs	light rain	light rain	light rain	light rain	rain shwrs	some clouds	cloudy	some clouds	some clouds	clear	clear	clear
Cloud base (m)	1800	850	400	850	1550	1850	750	450	700	500	600	2550		2700	2700			8450
km/h	SW	S	SSW	E	WNW	ENE	WNW	NNE	E	ESE	SE	ESE	ESE	NNW	E	WNW	NW	ENE
See all weather maps
cm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
mm	0.6	4	8	0.4	0.5	0.3	0.1	1.8	1.4	1.6	0.1	—	—	—	—	—	—	—
max °C	15	14	12	11	13	11	11	13	11	11	16	13	17	20	16	18	21	16
min °C	13	13	9	10	13	9	9	13	10	10	13	11	13	20	13	14	20	13
chill °C	13	12	8	10	13	9	9	13	10	10	13	10	13	20	13	14	20	13

Freezing level m	2550	2600	2100	2200	2300	2250	2150	2350	2350	2350	2600	2700	2650	2800	2850	2950	3150	3300

	6:26	—	—	6:26	—	—	6:28	—	—	6:30	—	—	6:31	—	—	6:33	—	—
	—	7:45	—	—	7:44	—	—	7:42	—	—	7:39	—	—	7:37	—	—	7:36	—

Mount Si Weather (Days 0-3):

The weather forecast for Mount Si is: Moderate rain (total 17mm), heaviest on Wed night. Very mild (max 15°C on Wed morning, min 9°C on Wed night). Wind will be generally light.

Mount Si Weather (Days 3-6):

Some drizzle, heaviest during Sat morning. Warm (max 21°C on Mon afternoon, min 10°C on Sat 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 30 km WSW 160m alt. 46 minutes ago	19°C	Dry	Calm (0 kph at 150).
Black Diamond 32 km SSW 192m alt. 1 hour ago		-	Calm (5 kph at 316).
Renton Airport 36 km WSW 218m alt. 3 hours ago	18°C	Dry and cloudy.	Light winds from the SSE (9 kph at 150).	16 km Low: overcast
Auburn 39 km SW 119m alt. 1 hour ago		-	Calm (0 kph at 227).
Monroe 44 km NW 80m alt. 47 minutes ago	21°C	Dry	Calm (0 kph at 323).
Seattl / oeing Airport 44 km WSW 218m alt. 3 hours ago	19°C	Dry and partly cloudy.	Light winds from the S (7 kph at 170).	16 km Low: few Mid: scattered High: broken
Seattle Tacoma International Airport 44 km WSW 218m alt. 3 hours ago	18°C	Light rain .	Light winds from the S (11 kph at 170).	16 km Low: scattered Mid: broken High: broken
BUOY-EBSW1 46 km W 3m alt. 1 hour ago
Snohomish 49 km NW 196m alt. 46 minutes ago	22°C	Dry	Light winds from the SSE (11 kph at 155).
Seattle 49 km WSW 100m alt. 1 hour ago		-	Wind obs. (14 kph from 119 degs) was rejected.

* 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.