– Lat/Long: 47.51° N 121.74° W

Mount Si
Weather Forecast, United States
Issued: 10 am Sat 14 Mar Local Time
Updates in:
hr min s
Update imminent

Issued: 10 am Sat 14 Mar 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 giving way to moderate rain (total 17mm) heaviest on Mon morning. Freeze-thaw conditions (max 9°C on Mon afternoon, min -3°C on Sat night). Wind will be generally light.									Days 4–6 Weather Summary Heavy rain (total 55mm), heaviest during Wed night. Very mild (max 10°C on Wed night, min 7°C on Tue morning). Wind will be generally light.
	Saturday 14			Sunday 15			Monday 16			Tuesday 17			Wednesday 18			Thursday 19
	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	light snow	snow shwrs	some clouds	some clouds	light rain	light rain	mod. rain	light rain	cloudy	light rain	mod. rain	heavy rain	light rain	light rain	heavy rain	mod. rain	light rain	light rain
km/h	NNW	WSW	E	S	SSW	SSW	SSW	SW	SSW	SSW	S	SW	SSW	SSW	SW	SSW	SSW	S
See all weather maps
cm	1	1	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
mm	—	—	—	—	1.9	5	7	3	—	3	7	16	2	0.9	15	6	1.7	4
max °C	-1	1	-2	3	3	6	7	9	8	8	8	9	8	8	10	10	9	10
min °C	-1	0	-3	-1	2	3	6	7	7	7	8	8	8	8	8	10	9	10
chill °C	-5	-2	-3	-3	0	1	4	5	5	4	7	6	5	6	6	8	7	8

Freezing level m	400	600	0	1050	1000	2300	3100	3000	2400	2550	2600	2600	2350	2650	2700	2800	3100	2750
Cloud base (m)	600	450	600	2400	700	800	450	450		700	450	600	600	600	400	500	850	800

	7:22	—	—	7:20	—	—	7:18	—	—	7:16	—	—	7:13	—	—	7:11	—	—
	—	7:09	—	—	7:12	—	—	7:13	—	—	7:14	—	—	7:15	—	—	7:16	—

Mount Si Weather (Days 0-3):

The weather forecast for Mount Si is: A dusting of snow giving way to moderate rain (total 17mm) heaviest on Mon morning. Freeze-thaw conditions (max 9°C on Mon afternoon, min -3°C on Sat night). Wind will be generally light.

Mount Si Weather (Days 3-6):

Heavy rain (total 55mm), heaviest during Wed night. Very mild (max 10°C on Wed night, min 7°C on Tue morning). 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. 51 minutes ago	8° C	Dry	Calm (0 kph at 343).
Snoqualmie Pass 30 km ESE 824m alt. 1 hour ago	2° C	-	Calm (0 kph at 358).
Black Diamond 32 km SSW 192m alt. 54 minutes ago		-	Light winds from the WSW (13 kph at 253).
Grotto wx 35 km NE 321m alt. 37 minutes ago	3° C	Light rain.	Light winds from the W (10 kph at 266).
Baring wx 35 km NE 220m alt. 54 minutes ago	3° C	Light rain.	Calm (3 kph at 251).
Renton Airport 36 km WSW 218m alt. 2 hours ago	6° C	Dry and partly cloudy.	Light winds from the NNW (9 kph at 330).	16 km Low: scattered Mid: scattered
Grotto wx 39 km NE 1101m alt. 45 minutes ago	1° C	-	Calm (2 kph at 90).
Auburn 39 km SW 119m alt. 1 hour ago		-	Wind obs. (6 kph from 16 degs) was rejected.
Stampede Pass Airport 40 km SE 628m alt. 2 hours ago	-4° C	Light snow.	Light winds from the N (9 kph at 1).	5 km Low: broken Mid: broken High: overcast
Woodinville 43 km WNW 137.2m alt. 43 minutes ago	2° C	-	Wind obs. (13 kph from 304 degs) was rejected.

* 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.