– Lat/Long: 47.51° N 121.74° W

Mount Si
Weather Forecast, United States
Issued: 3 am Sat 14 Feb Local Time
Updates in:
hr min s
Update imminent

Issued: 3 am Sat 14 Feb Local Time

Updates in:

hr min s

Update imminent

2 Mount Si Elevations: 2 Forecast Elevations:

	Days 1–3 Weather Summary Light rain (total 6mm) at first, then becoming colder with a dusting of snow on Mon afternoon. Freeze-thaw conditions (max 4°C on Sat morning, min -3°C on Mon night). Wind will be generally light.									Days 4–6 Weather Summary A moderate fall of snow, heaviest on Thu night. Freeze-thaw conditions (max 2°C on Tue afternoon, min -2°C on Tue night). Wind will be generally light.
	Saturday 14			Sunday 15			Monday 16			Tuesday 17			Wednesday 18			Thursday 19
	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	light rain	light rain	cloudy	light rain	light rain	light rain	cloudy	light snow	some clouds	cloudy	some clouds	snow shwrs	snow shwrs	some clouds	light snow	light snow	light snow	light snow
km/h	SSW	N	NNE	ENE	N	WSW	SSW	SSW	ESE	NW	NNW	NW	W	SW	SW	WSW	WSW	W
See all weather maps
cm	—	—	—	—	—	—	—	2	—	—	—	2	2	—	4	1	2	3
mm	1.4	0.1	—	0.8	3	0.9	—	—	—	—	—	—	—	—	—	—	—	—
max °C	4	4	2	3	3	3	2	1	0	1	2	-1	0	1	-1	0	0	0
min °C	3	3	1	3	3	2	1	1	-3	0	-1	-2	-1	-1	-2	-1	0	0
chill °C	2	3	1	3	3	0	-2	-3	-3	0	-1	-2	-4	-3	-5	-4	-4	-3

Freezing level m	850	1050	850	950	1000	950	650	700	100	500	750	400	400	600	350	400	500	450
Cloud base (m)	500	650	550	400	400	400	600	1350	350	600	400	400	400	400	400	400	450	400

	7:13	—	—	7:11	—	—	7:09	—	—	7:07	—	—	7:05	—	—	7:05	—	—
	—	5:29	—	—	5:30	—	—	5:31	—	—	5:32	—	—	5:35	—	—	5:36	—

Mount Si Weather (Days 0-3):

The weather forecast for Mount Si is: Light rain (total 6mm) at first, then becoming colder with a dusting of snow on Mon afternoon. Freeze-thaw conditions (max 4°C on Sat morning, min -3°C on Mon night). Wind will be generally light.

Mount Si Weather (Days 3-6):

A moderate fall of snow, heaviest on Thu night. Freeze-thaw conditions (max 2°C on Tue afternoon, min -2°C on Tue 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
Harman Heights wx 6 km SSW 251m alt. 1 hour ago	4° C	Dry	Calm (0 kph at 352).
Black Diamond 32 km SSW 192m alt. 1 hour ago		-	Calm (3 kph at 74).
Renton Airport 36 km WSW 218m alt. 2 hours ago	4° C	Clear	Calm (0 kph at 0).	16 km
Auburn 39 km SW 119m alt. 35 minutes ago	8° C	Dry	Wind obs. (6 kph from 34 degs) was rejected.
Stampede Pass Airport 40 km SE 628m alt. 2 hours ago	-2° C	Light snow.	Calm (0 kph at 0).	1 km Mid: broken High: overcast
Seattl / oeing Airport 44 km WSW 218m alt. 2 hours ago	6° C	Dry and partly cloudy.	Light winds from the SSE (13 kph at 150).	16 km Low: broken Mid: broken
Seattle Tacoma International Airport 44 km WSW 218m alt. 2 hours ago	4° C	Dry and partly cloudy.	Light winds from the S (17 kph at 180).	16 km Low: few Mid: scattered
Snohomish 49 km NW 196m alt. 52 minutes ago	5° C	Dry	Calm (5 kph at 156).
Seattle 49 km WSW 100m alt. 1 hour ago	16° C	-	Wind obs. (6 kph from 150 degs) was rejected.
SHIP3388 54 km W 15m alt. 3 hours ago			Light winds from the S (10 kph at 190).	- 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.