– Lat/Long: 47.51° N 121.74° W

Mount Si
Weather Forecast, United States
Issued: 3 pm Sun 01 Feb Local Time
Updates in:
hr min s
Update imminent

Issued: 3 pm Sun 01 Feb Local Time

Updates in:

hr min s

Update imminent

2 Mount Si Elevations: 2 Forecast Elevations:

	Days 1–4 Weather Summary A dusting of snow turning to light rain (total 4mm) on Mon morning. Freeze-thaw conditions (max 12°C on Wed morning, min 0°C on Mon morning). Winds decreasing (strong winds from the SW on Sun afternoon, calm by Mon night).											Days 5–7 Weather Summary Mostly dry. Very mild (max 14°C on Thu morning, min 6°C on Fri afternoon). Wind will be generally light.
	Sun 1		Monday 2			Tuesday 3			Wednesday 4			Thursday 5			Friday 6
	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	light snow	some clouds	light snow	light rain	light rain	cloudy	some clouds	some clouds	clear	clear	clear	clear	clear	clear	clear	clear	clear
km/h	SW	SW	SSE	WSW	SW	SSE	S	SSW	SSW	SE	ESE	ESE	ESE	SW	SW	WSW	NW
See all weather maps
cm	1	—	1	—	—	—	—	—	—	—	—	—	—	—	—	—	—
mm	—	—	1.6	1.9	0.4	—	—	—	—	—	—	—	—	—	—	—	—
max °C	2	2	2	4	6	9	9	9	12	12	12	14	13	10	8	7	7
min °C	1	1	0	4	5	7	8	8	11	11	11	13	11	7	7	6	6
chill °C	-5	-5	-5	-1	3	6	7	7	11	11	10	12	10	5	5	6	5

Freezing level m	1550	1400	1300	2100	2400	3000	3200	3300	3250	3500	3600	3850	3800	3300	3100	2900	2900
Cloud base (m)	500	2000	1650	450	600		6400	5100	5750	8950	8250		7150		8700

	—	—	7:31	—	—	7:30	—	—	7:28	—	—	7:26	—	—	7:26	—	—
	5:07	—	—	5:09	—	—	5:10	—	—	5:13	—	—	5:14	—	—	5:15	—

Mount Si Weather (Days 0-3):

The weather forecast for Mount Si is: A dusting of snow turning to light rain (total 4mm) on Mon morning. Freeze-thaw conditions (max 12°C on Wed morning, min 0°C on Mon morning). Winds decreasing (strong winds from the SW on Sun afternoon, calm by Mon night).

Mount Si Weather (Days 3-6):

Mostly dry. Very mild (max 14°C on Thu morning, min 6°C on Fri afternoon). Wind will be generally light.

This table gives the weather forecast for Mount Si at the specific elevation of 1270 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
Harman Heights wx 6 km SSW 251m alt. 53 minutes ago	10° C	Dry	Calm (0 kph at 189).
Black Diamond 32 km SSW 192m alt. 36 minutes ago		-	Calm (0 kph at 0).
Renton Airport 36 km WSW 218m alt. 2 hours ago	12° C	Light rain .	Light winds from the S (11 kph at 170).	16 km Low: scattered Mid: broken High: overcast
Auburn 39 km SW 119m alt. 27 minutes ago	12° C	Dry	Calm (0 kph at 201).
Stampede Pass Airport 40 km SE 628m alt. 2 hours ago	2° C	-	Wind obs. (11 kph from 1 degs) was rejected.	0.0 km
SHIP3762 43 km W 15m alt. 2 hours ago			Light winds from the S (19 kph at 180).	- km
SHIP2918 43 km W 15m alt. 2 hours ago			Light winds from the S (17 kph at 190).	- km
SHIP4092 43 km W 15m alt. 3 hours ago			Light winds from the S (15 kph at 190).	- km
Seattl / oeing Airport 44 km WSW 218m alt. 2 hours ago	12° C	Dry and cloudy.	Light winds from the S (15 kph at 180).	16 km Low: few Mid: broken High: overcast
Seattle Tacoma International Airport 44 km WSW 218m alt. 2 hours ago	11° C	Dry and partly cloudy.	Light winds from the S (19 kph at 180).	16 km Low: few Mid: broken High: broken

* 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.