– Lat/Long: 47.51° N 121.74° W

Mount Si
Weather Forecast, United States
Issued: 3 pm Tue 24 Feb Local Time
Updates in:
hr min s
Update imminent

Issued: 3 pm Tue 24 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 new snow. Temperatures will be below freezing (max -1°C on Thu afternoon, min -4°C on Tue night). Winds increasing (light winds from the NW on Tue afternoon, fresh winds from the WSW by Wed afternoon).											Days 5–7 Weather Summary Mostly dry. Freeze-thaw conditions (max 4°C on Sat morning, min -1°C on Fri afternoon). Wind will be generally light.
	Tue 24		Wednesday 25			Thursday 26			Friday 27			Saturday 28			Sunday 1
	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	some clouds	some clouds	some clouds	light snow	cloudy	cloudy	some clouds	cloudy	cloudy	some clouds	some clouds	some clouds	clear	clear	clear	clear	clear
km/h	NW	NW	SSW	WSW	WSW	SW	SW	SW	SW	WSW	NNW	N	NNE	NNW	NNW	NW	NNW
See all weather maps
cm	—	—	—	2	—	—	—	—	—	—	—	—	—	—	—	—	—
mm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
max °C	-2	-3	-3	-2	-3	-2	-1	-1	-1	-1	2	4	3	3	1	2	2
min °C	-2	-4	-4	-2	-3	-3	-1	-2	-2	-1	-1	3	2	1	1	1	1
chill °C	-5	-8	-10	-9	-10	-10	-8	-9	-8	-5	-4	0	0	-3	-3	0	-2

Freezing level m	1000	700	850	950	800	900	1200	1050	1000	1150	1500	2250	1950	1900	1550	1600	2000
Cloud base (m)	450	500	500	500	650	450	550	550	500	600	650	450	750	450	500	750

	—	—	6:54	—	—	6:52	—	—	6:50	—	—	6:48	—	—	6:47	—	—
	5:44	—	—	5:45	—	—	5:46	—	—	5:49	—	—	5:50	—	—	5:52	—

Mount Si Weather (Days 0-3):

The weather forecast for Mount Si is: A dusting of new snow. Temperatures will be below freezing (max -1°C on Thu afternoon, min -4°C on Tue night). Winds increasing (light winds from the NW on Tue afternoon, fresh winds from the WSW by Wed afternoon).

Mount Si Weather (Days 3-6):

Mostly dry. Freeze-thaw conditions (max 4°C on Sat morning, min -1°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. 25 minutes ago	2° C	-	Calm (0 kph at 346).
Black Diamond 32 km SSW 192m alt. 58 minutes ago		-	Calm (0 kph at 0).
Renton Airport 36 km WSW 218m alt. 2 hours ago	9° C	Clear	Wind obs. (6 kph from 310 degs) was rejected.	16 km
Auburn 39 km SW 119m alt. 41 minutes ago	17° C	Dry	Calm (3 kph at 66).
Stampede Pass Airport 40 km SE 628m alt. 2 hours ago	-1° C	Moderate rain .	Calm (0 kph at 0).	1 km
SHIP9445 43 km W 3m alt. 1 hour ago
SHIP3160 43 km W 15m alt. 3 hours ago				- km
SHIP4373 43 km W 15m alt. 3 hours ago				- km
SHIP6014 43 km W 15m alt. 3 hours ago				- km
SHIP9109 43 km W 15m alt. 3 hours ago				- km

* 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.