– Lat/Long: 47.51° N 121.74° W

Mount Si
Weather Forecast, United States
Issued: 9 am Tue 02 Dec Local Time
Updates in:
hr min s
Update imminent

Issued: 9 am Tue 02 Dec Local Time

Updates in:

hr min s

Update imminent

2 Mount Si Elevations: 2 Forecast Elevations:

	Days 1–3 Weather Summary Heavy rain (total 28mm), heaviest during Thu night. Mild temperatures (max 9°C on Thu night, min 3°C on Tue afternoon). Winds increasing (calm on Tue afternoon, fresh winds from the SW by Thu night).									Days 4–6 Weather Summary Heavy rain (total 33mm), heaviest during Sun morning. Mild temperatures (max 8°C on Fri morning, min 3°C on Sun night). Winds decreasing (fresh winds from the WSW on Fri morning, calm by Sun night).
	Tuesday 2			Wednesday 3			Thursday 4			Friday 5			Saturday 6			Sunday 7
	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	rain shwrs	rain shwrs	some clouds	some clouds	light rain	light rain	mod. rain	mod. rain	heavy rain	mod. rain	light rain	light rain	light rain	light rain	light rain	mod. rain	rain shwrs	rain shwrs
km/h	N	NW	ESE	NW	NW	WNW	SSW	SSW	WSW	WSW	WSW	SW	SW	WSW	WSW	SSW	WSW	SW
See all weather maps
cm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
mm	0.2	0.2	—	—	0.1	0.1	6	7	15	7	3	4	3	1.7	4	8	2	0.4
max°C	5	4	3	5	4	5	5	6	9	8	7	6	6	6	6	6	7	4
min°C	5	3	3	4	4	4	5	6	7	8	7	6	6	6	6	6	5	3
chill°C	3	3	3	4	4	4	5	6	4	4	3	2	2	2	3	3	2	2

Freezing level (m)	1250	1150	1350	1200	1200	1350	1600	1900	2400	1800	1600	1400	1450	1600	1450	1500	1550	1100
Cloud base (m)	450	550	600	2050	1000	450	450	400	400	400	400	400	400	400	450	400	450	700

	7:35	—	—	7:35	—	—	7:37	—	—	7:37	—	—	7:39	—	—	7:39	—	—
	—	4:16	—	—	4:16	—	—	4:15	—	—	4:15	—	—	4:15	—	—	4:15	—

Mount Si Weather (Days 0-3):

The weather forecast for Mount Si is: Heavy rain (total 28mm), heaviest during Thu night. Mild temperatures (max 9°C on Thu night, min 3°C on Tue afternoon). Winds increasing (calm on Tue afternoon, fresh winds from the SW by Thu night).

Mount Si Weather (Days 3-6):

Heavy rain (total 33mm), heaviest during Sun morning. Mild temperatures (max 8°C on Fri morning, min 3°C on Sun night). Winds decreasing (fresh winds from the WSW on Fri morning, calm by Sun night).

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 5 closest weather stations

Weather Station	Temp.	Weather	Wind	Cloud Visibility Cloud / Visibility
Harman Heights wx 6 km SSW 251m alt. 39 minutes ago	5° C	Dry	Calm (0 kph at 251).
Black Diamond 32 km SSW 192m alt. 47 minutes ago		-	Wind obs. (6 kph from 360 degs) was rejected.
Renton Airport 36 km WSW 218m alt. 2 hours ago	7° C	Dry and cloudy.	Light winds from the NE.(Wind varies from 006 to 012 degs) (7 kph at 40).	16 km Low: overcast
Auburn 39 km SW 119m alt. 1 hour ago	7° C	Dry	Calm (2 kph at 153).
Stampede Pass Airport 40 km SE 628m alt. 2 hours ago	0° C	Fog -.	Wind obs. (6 kph from 1 degs) was rejected.	0 km
Seattl / oeing Airport 44 km WSW 218m alt. 2 hours ago	7° C	Mist -.	Wind obs. (6 kph from 60 degs) was rejected.	8 km Low: broken Mid: overcast
Seattle Tacoma International Airport 44 km WSW 218m alt. 2 hours ago	7° C	Mist -.	Light winds from the NNE (9 kph at 30).	10 km Low: overcast
Snohomish 49 km NW 196m alt. 28 minutes ago	5° C	Dry	Calm (0 kph at 92).
Seattle 49 km WSW 100m alt. 54 minutes ago		-
BUOY-WPOW1 55 km W 3m alt. 1 hour ago	7° C		Light winds from the NNE (8 kph at 30).

* 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.