– Lat/Long: 47.51° N 121.74° W

Mount Si
Weather Forecast, United States
Issued: 4 pm Wed 02 Sep Local Time
Updates in:
hr min s
Update imminent

Issued: 4 pm Wed 02 Sep Local Time

Updates in:

hr min s

Update imminent

2 Mount Si Elevations: 2 Forecast Elevations:

	Days 1–4 Weather Summary Moderate rain (total 12mm), heaviest on Wed afternoon. Very mild (max 14°C on Wed afternoon, min 9°C on Wed night). Wind will be generally light.											Days 5–7 Weather Summary Mostly dry. Warm (max 20°C on Sun afternoon, min 12°C on Sat night). Wind will be generally light.
	Wed 2		Thursday 3			Friday 4			Saturday 5			Sunday 6			Monday 7
	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	light rain	rain shwrs	rain shwrs	light rain	rain shwrs	light rain	light rain	light rain	cloudy	light rain	cloudy	some clouds	rain shwrs	rain shwrs	clear	clear	some clouds
Cloud base (m)	800	1900	850	900	800	750	850	2300	1700	1700	2900	2150	2300				8400
km/h	S	SSW	WNW	W	N	W	N	E	WNW	NNW	E	NNW	NNW	E	WNW	WNW	ESE
See all weather maps
cm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
mm	5	3	0.5	1.2	0.2	0.2	1.2	0.7	—	0.2	—	—	0.1	0.1	—	—	—
max °C	14	12	11	13	11	11	14	12	14	16	13	18	20	15	18	20	16
min °C	12	9	11	13	10	10	13	10	11	14	12	13	19	12	14	20	12
chill °C	10	9	11	13	10	10	13	10	11	14	12	13	19	12	14	20	12

Freezing level m	2550	2150	2200	2300	2250	2200	2400	2450	2400	2600	2600	2700	2800	2900	2950	3100	3250

	—	—	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 12mm), heaviest on Wed afternoon. Very mild (max 14°C on Wed afternoon, min 9°C on Wed night). Wind will be generally light.

Mount Si Weather (Days 3-6):

Mostly dry. Warm (max 20°C on Sun afternoon, min 12°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
Renton 30 km WSW 160m alt. 56 minutes ago	14°C	Dry	Calm (5 kph at 237).
Black Diamond 32 km SSW 192m alt. 2 hours ago		-	Calm (2 kph at 230).
Renton Airport 36 km WSW 218m alt. 2 hours ago	16°C	Dry and cloudy.	Light winds from the N (7 kph at 1).	16 km Low: overcast
Auburn 39 km SW 119m alt. 2 hours ago	31°C	Dry	Calm (0 kph at 143).
Monroe 44 km NW 80m alt. 54 minutes ago	11°C	Dry	Calm (0 kph at 323).
Seattl / oeing Airport 44 km WSW 218m alt. 2 hours ago	16°C	Dry and cloudy.	Light winds from the ESE (11 kph at 120).	14 km Low: scattered Mid: broken High: overcast
Seattle Tacoma International Airport 44 km WSW 218m alt. 2 hours ago	16°C	Light rain .	Light winds from the SE (11 kph at 140).	13 km Low: overcast
BUOY-EBSW1 46 km W 3m alt. 1 hour ago
Snohomish 49 km NW 196m alt. 1 hour ago	17°C	Dry	Light winds from the S (10 kph at 182).
Seattle 49 km WSW 100m alt. 49 minutes 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.