– Lat/Long: 47.51° N 121.74° W

Mount Si
Weather Forecast, United States
Issued: 9 pm Wed 04 Feb Local Time
Updates in:
hr min s
Update imminent

Issued: 9 pm Wed 04 Feb Local Time

Updates in:

hr min s

Update imminent

2 Mount Si Elevations: 2 Forecast Elevations:

	Days 1–4 Weather Summary Light rain (total 6mm), mostly falling on Sat afternoon. Very mild (max 17°C on Thu morning, min 9°C on Thu night). Wind will be generally light.										Days 5–7 Weather Summary Heavy rain (total 44mm), heaviest during Sat night. Mild temperatures (max 9°C on Sat night, min 1°C on Tue afternoon). Wind will be generally light.
		Thursday 5			Friday 6			Saturday 7			Sunday 8			Monday 9			Tuesday 10
	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	clear	some clouds	some clouds	clear	some clouds	some clouds	some clouds	cloudy	mod. rain	heavy rain	light rain	light rain	mod. rain	light rain	light rain	mod. rain	light rain	rain shwrs	clear
km/h	ESE	ESE	SE	SSE	SW	SW	S	SW	S	SW	SW	NW	WNW	WSW	SW	SSW	SW	SE	E
See all weather maps
cm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
mm	—	—	—	—	—	—	—	—	6	20	1.5	0.3	7	3	4	7	1.1	0.1	—
max °C	11	17	15	10	14	13	9	13	9	9	7	6	4	4	4	3	3	4	0
min °C	10	14	11	9	13	10	9	12	9	7	7	5	3	4	4	2	3	1	0
chill °C	9	13	10	9	13	10	8	11	7	6	6	4	0	1	1	-1	3	1	-2

Freezing level m	3800	3900	3800	3250	2900	2750	2450	2350	2100	2150	1450	1450	1050	1050	1100	1000	900	1000	500
Cloud base (m)				6900	8550			5850	1950	450	700	800	450	450	400	400	400	400	450

	—	7:26	—	—	7:26	—	—	7:24	—	—	7:22	—	—	7:20	—	—	7:20	—	—
	—	—	5:14	—	—	5:15	—	—	5:17	—	—	5:19	—	—	5:21	—	—	5:22	—

Mount Si Weather (Days 0-3):

The weather forecast for Mount Si is: Light rain (total 6mm), mostly falling on Sat afternoon. Very mild (max 17°C on Thu morning, min 9°C on Thu night). Wind will be generally light.

Mount Si Weather (Days 3-6):

Heavy rain (total 44mm), heaviest during Sat night. Mild temperatures (max 9°C on Sat night, min 1°C on Tue afternoon). 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. 50 minutes ago	6° C	Dry	Calm (0 kph at 40).
Black Diamond 32 km SSW 192m alt. 40 minutes ago	14° C	Dry	Calm (3 kph at 0).
Renton Airport 36 km WSW 218m alt. 2 hours ago	7° C	Fog -.	Calm (0 kph at 0).	0 km
Auburn 39 km SW 119m alt. 37 minutes ago	-6° C	-	Calm (0 kph at 318).
Stampede Pass Airport 40 km SE 628m alt. 2 hours ago	-1° C	Moderate rain .	Wind obs. (6 kph from 1 degs) was rejected.	6 km Mid: scattered
Seattl / oeing Airport 44 km WSW 218m alt. 2 hours ago	6° C	-	Calm (0 kph at 0).	16 km Low: few
Seattle Tacoma International Airport 44 km WSW 218m alt. 2 hours ago	5° C	Fog -.	Light winds from the NNW (13 kph at 340).	1 km Low: broken
Snohomish 49 km NW 196m alt. 29 minutes ago	5° C	Dry	Calm (3 kph at 338).
SHIP3694 51 km W 15m alt. 1 hour ago				- km
SHIP7978 51 km W 3m alt. 1 hour ago	8° C

* 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.