– Lat/Long: 47.51° N 121.74° W

Mount Si
Weather Forecast, United States
Issued: 3 am Mon 02 Feb Local Time
Updates in:
hr min s
Update imminent

Issued: 3 am Mon 02 Feb Local Time

Updates in:

hr min s

Update imminent

2 Mount Si Elevations: 2 Forecast Elevations:

	Days 1–3 Weather Summary A dusting of snow turning to light rain (total 5mm) on Mon morning. Very mild (max 13°C on Wed morning, min 1°C on Mon morning). Winds decreasing (fresh winds from the SW on Mon morning, calm by Mon night).									Days 4–6 Weather Summary Some drizzle, heaviest during Sat night. Very mild (max 15°C on Thu morning, min 3°C on Sat night). Wind will be generally light.
	Monday 2			Tuesday 3			Wednesday 4			Thursday 5			Friday 6			Saturday 7
	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	light snow	light rain	rain shwrs	some clouds	some clouds	some clouds	some clouds	clear	clear	clear	clear	clear	some clouds	some clouds	some clouds	clear	some clouds	rain shwrs
km/h	SSW	WSW	SW	SSE	SSW	SW	S	SE	ENE	ESE	E	SSW	WSW	WSW	WSW	SW	SW	SW
See all weather maps
cm	1	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
mm	2	2	0.5	—	—	—	—	—	—	—	—	—	—	—	—	—	—	1.5
max °C	2	4	6	9	9	10	13	13	12	15	14	11	9	9	7	6	6	5
min °C	1	4	5	8	8	8	11	11	11	13	13	9	9	7	5	6	5	3
chill °C	-5	-1	2	7	6	6	10	10	11	12	12	7	7	6	2	3	2	-2

Freezing level m	1550	2100	2400	2950	3100	3050	3400	3450	3550	3800	3850	3550	3050	2850	2650	2350	2300	2350
Cloud base (m)	900	450	450	6700	5900	3350	4250			8500	8600	8650		6900	6700	8050		2850

	7:31	—	—	7:30	—	—	7:28	—	—	7:26	—	—	7:26	—	—	7:24	—	—
	—	5:09	—	—	5:10	—	—	5:13	—	—	5:14	—	—	5:15	—	—	5:17	—

Mount Si Weather (Days 0-3):

The weather forecast for Mount Si is: A dusting of snow turning to light rain (total 5mm) on Mon morning. Very mild (max 13°C on Wed morning, min 1°C on Mon morning). Winds decreasing (fresh winds from the SW on Mon morning, calm by Mon night).

Mount Si Weather (Days 3-6):

Some drizzle, heaviest during Sat night. Very mild (max 15°C on Thu morning, min 3°C on Sat 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 10 closest weather stations

Weather Station	Temp.	Weather	Wind	Cloud Visibility Cloud / Visibility
Harman Heights wx 6 km SSW 251m alt. 50 minutes ago	9° C	Dry	Calm (0 kph at 243).
Black Diamond 32 km SSW 192m alt. 3 hours ago	11° C	Dry	Calm (0 kph at 0).
Renton Airport 36 km WSW 218m alt. 2 hours ago	7° C	Dry and cloudy.	Light winds from the S (11 kph at 170).	16 km Low: broken Mid: overcast
Auburn 39 km SW 119m alt. 2 hours ago	-6° C	-	Calm (0 kph at 201).
Stampede Pass Airport 40 km SE 628m alt. 1 hour ago	1° C	Moderate rain .	Calm (0 kph at 0).	5 km Mid: broken High: overcast
SHIP3710 43 km W 15m alt. 3 hours ago			Calm (6 kph at 210).	- km
SHIP9846 43 km W 15m alt. 3 hours ago			Calm (6 kph at 190).	- km
SHIP9287 43 km W 3m alt. 3 hours ago	8° C		Calm (5 kph at 190).
SHIP8018 43 km W 15m alt. 3 hours ago			Calm (6 kph at 190).	- km
Seattl / oeing Airport 44 km WSW 218m alt. 2 hours ago	7° C	Light rain .	Light winds from the ESE (7 kph at 120).	16 km Low: broken Mid: overcast

* 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.