– Lat/Long: 47.51° N 121.74° W

Mount Si
Weather Forecast, United States
Issued: 4 pm Sun 24 May Local Time
Updates in:
hr min s
Update imminent

Issued: 4 pm Sun 24 May Local Time

Updates in:

hr min s

Update imminent

2 Mount Si Elevations: 2 Forecast Elevations:

	Days 1–4 Weather Summary Mild with light rain (total 5mm) on Mon afternoon Becoming colder with a light covering of snow, mostly falling on Tue morning. Very mild (max 11°C on Sun afternoon, min 1°C on Tue morning). Wind will be generally light.											Days 5–7 Weather Summary Mostly dry. Very mild (max 13°C on Thu afternoon, min 2°C on Fri night). Wind will be generally light.
	Sun 24		Monday 25			Tuesday 26			Wednesday 27			Thursday 28			Friday 29
	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	some clouds	some clouds	light rain	light rain	light rain	light snow	snow shwrs	rain shwrs	some clouds	some clouds	clear	clear	some clouds	some clouds	light rain	light rain	light rain
km/h	SW	SSW	SSW	WSW	W	WNW	N	NNW	N	NW	NW	NW	NW	WNW	WSW	SW	SW
See all weather maps
cm	—	—	—	—	—	4	1	—	—	—	—	—	—	—	—	—	—
mm	—	—	0.1	4	1.2	—	0.1	0.3	—	—	—	—	—	—	0.1	0.1	0.2
max °C	11	11	7	4	3	2	3	4	6	10	10	9	13	12	5	5	5
min °C	10	8	6	4	2	1	2	3	4	8	9	9	12	7	5	4	2
chill °C	9	6	4	2	-1	-2	0	0	1	8	8	8	12	6	3	1	-3

Freezing level m	3200	3150	2200	1950	1600	1550	1950	3350	3650	3650	3450	3550	3650	3600	3150	2500	1850
Cloud base (m)	5600	6750	2650	550	750	400	400	1700	550	900		9100	1850	450	450	650	500

	—	—	5:18	—	—	5:18	—	—	5:16	—	—	5:16	—	—	5:16	—	—
	—	8:46	—	—	8:49	—	—	8:50	—	—	8:51	—	—	8:52	—	—	8:52

Mount Si Weather (Days 0-3):

The weather forecast for Mount Si is: Mild with light rain (total 5mm) on Mon afternoon Becoming colder with a light covering of snow, mostly falling on Tue morning. Very mild (max 11°C on Sun afternoon, min 1°C on Tue morning). Wind will be generally light.

Mount Si Weather (Days 3-6):

Mostly dry. Very mild (max 13°C on Thu afternoon, min 2°C on Fri 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. 1 hour ago	22° C	Dry	Calm (0 kph at 326).
Snoqualmie Pass 30 km ESE 824m alt. 31 minutes ago	21° C	-	Calm (0 kph at 329).
Renton 30 km WSW 160m alt. 1 hour ago	23° C	Dry	Calm (3 kph at 221).
Black Diamond 32 km SSW 192m alt. 31 minutes ago		-	Wind obs. (10 kph from 360 degs) was rejected.
Grotto wx 35 km NE 321m alt. 2 hours ago	23° C	Dry	Light winds from the WSW (13 kph at 256).
Renton Airport 36 km WSW 218m alt. 2 hours ago	21° C	Clear	Light winds from the N (9 kph at 350).	16 km
Grotto wx 39 km NE 1101m alt. 1 hour ago	18° C	Dry	Calm (2 kph at 192).
Auburn 39 km SW 119m alt. 1 hour ago	31° C	Dry	Calm (0 kph at 202).
Woodinville 43 km WNW 137.2m alt. 2 hours ago	23° C	Dry	Wind obs. (8 kph from 260 degs) was rejected.
Seattl / oeing Airport 44 km WSW 218m alt. 54 minutes ago	22° C	Clear	Light winds from the S (9 kph at 190).	16 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.