– Lat/Long: 47.51° N 121.74° W

Mount Si
Weather Forecast, United States
Issued: 3 am Thu 21 Nov Local Time
Updates in:
hr min s
Update imminent

Issued: 3 am Thu 21 Nov Local Time

Updates in:

hr min s

Update imminent

2 Mount Si Elevations: 2 Forecast Elevations:

	Days 1–3 Weather Summary Light rain (total 9mm), mostly falling on Thu night. Freeze-thaw conditions (max 4°C on Thu night, min -1°C on Sat afternoon). Winds decreasing (strong winds from the ESE on Thu night, calm by Fri night).									Days 4–6 Weather Summary A dusting of new snow. Temperatures will be below freezing (max 0°C on Sun afternoon, min -3°C on Tue night). Wind will be generally light.
	Thursday 21			Friday 22			Saturday 23			Sunday 24			Monday 25			Tuesday 26
	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	cloudy	some clouds	mod. rain	light rain	light rain	some clouds	some clouds	some clouds	cloudy	cloudy	cloudy	cloudy	light snow	cloudy	light snow	light snow	cloudy	some clouds
km/h	ENE	SSE	ESE	SE	SSW	SW	WSW	SW	SW	ESE	SE	ESE	ESE	ESE	WSW	WNW	WSW	WSW
See all weather maps
cm	—	—	—	—	—	—	—	—	—	—	—	—	1.0	—	1.0	1.0	—	—
mm	—	—	6	3	0.3	—	—	—	—	—	—	—	—	—	—	—	—	—
max°C	2	2	4	4	3	2	0	0	0	-1	0	0	0	0	-1	-2	-2	-2
min°C	2	2	2	4	3	0	0	-1	-1	-1	-1	-1	0	-1	-1	-2	-2	-3
chill°C	-1	-1	-2	-1	-2	0	-3	-4	-4	-6	-4	-4	-4	-4	-4	-5	-6	-7

Freezing level (m)	1550	1600	2050	2250	1750	1450	1250	1200	1100	1050	1200	1150	1200	1300	1100	1000	950	950
Cloud base (m)	1500	2050		700	700	1650	1850	800	500	1650	450	1550	650	400	450	450	450	450

	7:22	—	—	7:22	—	—	7:24	—	—	7:26	—	—	7:26	—	—	7:28	—	—
	—	4:22	—	—	4:22	—	—	4:22	—	—	4:21	—	—	4:20	—	—	4:20	—

Mount Si Weather (Days 0-3):

The weather forecast for Mount Si is: Light rain (total 9mm), mostly falling on Thu night. Freeze-thaw conditions (max 4°C on Thu night, min -1°C on Sat afternoon). Winds decreasing (strong winds from the ESE on Thu night, calm by Fri night).

Mount Si Weather (Days 3-6):

A dusting of new snow. Temperatures will be below freezing (max 0°C on Sun afternoon, min -3°C on Tue night). 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 5 closest weather stations

Weather Station	Temp.	Weather	Wind	Cloud Visibility Cloud / Visibility
Harman Heights wx 6 km SSW 251m alt. 47 minutes ago	5° C	Dry	Calm (0 kph at 25).
Renton Airport 36 km WSW 218m alt. 2 hours ago	6° C	Dry and partly cloudy.	Calm (0 kph at 0).	16 km Low: broken
Auburn 39 km SW 119m alt. 1 hour ago	-4° C	-	Calm (0 kph at 332).
Stampede Pass Airport 40 km SE 628m alt. 2 hours ago	1° C	Fog -.	Calm (0 kph at 0).	1 km
SHIP5501 42 km WSW 15m alt. 1 hour ago				- km
SHIP1898 42 km WSW 15m alt. 2 hours ago				- km
SHIP2174 42 km WSW 15m alt. 1 hour ago				- km
SHIP2847 42 km WSW 15m alt. 2 hours ago				- km
SHIP6677 42 km WSW 15m alt. 2 hours ago				- km
SHIP5938 42 km WSW 15m alt. 2 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.