– Lat/Long: 47.51° N 121.74° W

Mount Si
Weather Forecast, United States
Issued: 9 pm Wed 11 Feb Local Time
Updates in:
hr min s
Update imminent

Issued: 9 pm Wed 11 Feb Local Time

Updates in:

hr min s

Update imminent

2 Mount Si Elevations: 2 Forecast Elevations:

	Days 1–4 Weather Summary Moderate rain (total 13mm), heaviest on Fri night. Mild temperatures (max 8°C on Thu morning, min 2°C on Fri night). Wind will be generally light.										Days 5–7 Weather Summary Light rain (total 3mm), mostly falling on Mon night. Freeze-thaw conditions (max 6°C on Mon morning, min -1°C on Sun night). Wind will be generally light.
		Thursday 12			Friday 13			Saturday 14			Sunday 15			Monday 16			Tuesday 17
	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	some clouds	some clouds	some clouds	rain shwrs	light rain	light rain	mod. rain	light rain	light rain	some clouds	clear	clear	some clouds	cloudy	light rain	light rain	some clouds	light rain	mod. snow
km/h	SE	SW	SW	SSW	SW	SSW	SW	W	NNW	N	NW	NW	ESE	ESE	ESE	ESE	NE	WSW	SW
See all weather maps
cm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	8
mm	—	—	—	0.1	0.2	3	9	0.7	0.2	—	—	—	—	—	0.3	3	—	0.2	—
max °C	5	8	7	5	5	5	3	3	3	1	3	3	1	6	6	3	5	4	2
min °C	4	6	4	4	4	4	2	3	2	0	2	0	-1	4	4	2	4	3	1
chill °C	4	5	3	2	3	3	2	3	2	0	2	0	-1	2	2	2	4	3	-3

Freezing level m	2100	1600	1450	1300	1200	1200	1000	850	900	700	800	900	300	1100	1350	1050	1300	1300	700
Cloud base (m)			3050	1850	500	400	400	400	550	450	500	600	400	4500		350	450	450	350

	—	7:16	—	—	7:15	—	—	7:13	—	—	7:11	—	—	7:09	—	—	7:07	—	—
	—	—	5:24	—	—	5:27	—	—	5:29	—	—	5:30	—	—	5:31	—	—	5:32	—

Mount Si Weather (Days 0-3):

The weather forecast for Mount Si is: Moderate rain (total 13mm), heaviest on Fri night. Mild temperatures (max 8°C on Thu morning, min 2°C on Fri night). Wind will be generally light.

Mount Si Weather (Days 3-6):

Light rain (total 3mm), mostly falling on Mon night. Freeze-thaw conditions (max 6°C on Mon morning, min -1°C on Sun 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	2° C	-	Calm (0 kph at 101).
Black Diamond 32 km SSW 192m alt. 53 minutes ago		-	Calm (0 kph at 0).
Renton Airport 36 km WSW 218m alt. 2 hours ago	3° C	Clear	Light winds from the S (6 kph at 190).	16 km
Auburn 39 km SW 119m alt. 1 hour ago	3° C	Dry	Calm (0 kph at 105).
Stampede Pass Airport 40 km SE 628m alt. 2 hours ago	-2° C	Moderate rain .	Calm (0 kph at 0).	16 km
SHIP7103 43 km W 15m alt. 3 hours ago				- km
SHIP6436 43 km W 3m alt. 2 hours ago	8° C
SHIP8612 43 km W 15m alt. 3 hours ago				- km
SHIP8092 43 km W 3m alt. 3 hours ago	8° C
SHIP2366 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.