– Lat/Long: 47.51° N 121.74° W

Mount Si
Weather Forecast, United States
Issued: 9 am Sun 11 Jan Local Time
Updates in:
hr min s
Update imminent

Issued: 9 am Sun 11 Jan Local Time

Updates in:

hr min s

Update imminent

2 Mount Si Elevations: 2 Forecast Elevations:

	Days 1–3 Weather Summary Heavy rain (total 21mm), heaviest during Sun night. Very mild (max 15°C on Tue morning, min 7°C on Sun morning). Wind will be generally light.									Days 4–6 Weather Summary Mostly dry. Very mild (max 14°C on Fri morning, min 7°C on Wed night). Wind will be generally light.
	Sunday 11			Monday 12			Tuesday 13			Wednesday 14			Thursday 15			Friday 16
	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	light rain	mod. rain	heavy rain	light rain	light rain	rain shwrs	some clouds	some clouds	clear	some clouds	some clouds	clear	clear	clear	clear	clear	clear	clear
km/h	S	SSW	SW	SW	WSW	SSW	SE	N	SE	SW	W	ENE	N	NNW	ESE	ESE	ESE	ESE
See all weather maps
cm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
mm	3	5	10	1.7	0.4	0.2	—	—	—	—	—	—	—	—	—	—	—	—
max °C	8	8	9	11	11	11	15	13	11	13	11	8	11	10	8	14	12	8
min °C	7	8	9	10	11	11	12	11	9	11	8	7	9	8	7	11	9	8
chill °C	5	6	7	9	10	10	12	11	9	11	8	7	9	8	6	11	8	7

Freezing level m	2150	2450	2600	2650	2850	3000	3500	3650	3650	3300	2750	3250	3300	3500	3450	3650	3700	3800
Cloud base (m)	550	500	450	500	500	650	900	7000			2950			9400

	7:52	—	—	7:50	—	—	7:50	—	—	7:50	—	—	7:48	—	—	7:48	—	—
	—	4:37	—	—	4:38	—	—	4:39	—	—	4:42	—	—	4:43	—	—	4:44	—

Mount Si Weather (Days 0-3):

The weather forecast for Mount Si is: Heavy rain (total 21mm), heaviest during Sun night. Very mild (max 15°C on Tue morning, min 7°C on Sun morning). Wind will be generally light.

Mount Si Weather (Days 3-6):

Mostly dry. Very mild (max 14°C on Fri morning, min 7°C on Wed 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	11° C	Dry	Calm (0 kph at 49).
Black Diamond 32 km SSW 192m alt. 1 hour ago	16° C	Dry	Light winds from the N (19 kph at 0).
Renton Airport 36 km WSW 218m alt. 2 hours ago	9° C	Dry and cloudy.	Light winds from the S (6 kph at 170).	16 km Low: scattered Mid: broken High: overcast
Auburn 39 km SW 119m alt. 37 minutes ago	7° C	Dry	Calm (0 kph at 312).
Stampede Pass Airport 40 km SE 628m alt. 2 hours ago	0° C	Moderate rain .	Light winds from the N (6 kph at 1).	0 km
Seattl / oeing Airport 44 km WSW 218m alt. 2 hours ago	9° C	Dry and cloudy.	Light winds from the SSW (7 kph at 200).	16 km Low: few Mid: overcast
Seattle Tacoma International Airport 44 km WSW 218m alt. 2 hours ago	8° C	Dry and cloudy.	Light winds from the W (6 kph at 280).	14 km Low: scattered Mid: broken High: overcast
Snohomish 49 km NW 196m alt. 59 minutes ago	7° C	Dry	Calm (3 kph at 9).
Seattle 49 km WSW 100m alt. 1 hour ago		-	Wind obs. (13 kph from 311 degs) was rejected.
BUOY-WPOW1 55 km W 3m alt. 44 minutes ago	9° C		Moderate winds from the S (28 kph at 190).

* 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.