– Lat/Long: 47.51° N 121.74° W

Mount Si
Weather Forecast, United States
Issued: 4 pm Fri 03 Jul Local Time
Updates in:
hr min s
Update imminent

Issued: 4 pm Fri 03 Jul Local Time

Updates in:

hr min s

Update imminent

2 Mount Si Elevations: 2 Forecast Elevations:

	Days 1–4 Weather Summary Mostly dry. Very mild (max 16°C on Mon morning, min 9°C on Fri night). Wind will be generally light.											Days 5–7 Weather Summary Some drizzle, heaviest during Wed morning. Very mild (max 18°C on Mon afternoon, min 7°C on Wed morning). Wind will be generally light.
	Fri 3		Saturday 4			Sunday 5			Monday 6			Tuesday 7			Wednesday 8
	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	rain shwrs	some clouds	clear	clear	clear	some clouds	clear	clear	clear	clear	some clouds	clear	some clouds	some clouds	light rain	light rain	rain shwrs
km/h	W	SW	SW	W	NNW	NNW	NNW	N	SE	WNW	W	SSW	WSW	WSW	WSW	WSW	NW
See all weather maps
cm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
mm	0.1	—	—	—	—	—	—	—	—	—	—	—	—	—	0.4	0.5	0.5
max °C	13	12	10	14	12	11	15	15	16	18	17	14	16	13	8	8	9
min °C	11	9	9	12	9	10	13	14	16	16	13	14	15	8	7	8	7
chill °C	11	7	7	11	8	9	13	14	16	16	12	13	15	6	4	5	5

Freezing level m	3750	3600	3500	3750	3850	3850	4050	4150	4000	4100	4100	4100	4150	3600	3000	3500	3650
Cloud base (m)									9550	9450		7950			900	450	850

	—	—	5:15	—	—	5:16	—	—	5:16	—	—	5:16	—	—	5:18	—	—
	—	9:07	—	—	9:06	—	—	9:06	—	—	9:06	—	—	9:05	—	—	9:05

Mount Si Weather (Days 0-3):

The weather forecast for Mount Si is: Mostly dry. Very mild (max 16°C on Mon morning, min 9°C on Fri night). Wind will be generally light.

Mount Si Weather (Days 3-6):

Some drizzle, heaviest during Wed morning. Very mild (max 18°C on Mon afternoon, min 7°C on Wed morning). 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. 3 hours ago	19° C	Dry	Calm (0 kph at 339).
Snoqualmie Pass 30 km ESE 824m alt. 1 hour ago	19° C	-	Calm (0 kph at 322).
Renton 30 km WSW 160m alt. 41 minutes ago	23° C	Dry	Calm (2 kph at 188).
Grotto wx 35 km NE 321m alt. 35 minutes ago	22° C	Dry	Light winds from the W (16 kph at 266).
Renton Airport 36 km WSW 218m alt. 2 hours ago	23° C	Dry and partly cloudy.	Light winds from the N (15 kph at 0).	16 km Low: broken
Grotto wx 39 km NE 1101m alt. 31 minutes ago	13° C	Dry	Calm (0 kph at 29).
Auburn 39 km SW 119m alt. 1 hour ago	32° C	Dry	Calm (0 kph at 117).
Woodinville 43 km WNW 137.2m alt. 26 minutes ago	22° C	Dry	Wind obs. (14 kph from 264 degs) was rejected.
Seattl / oeing Airport 44 km WSW 218m alt. 2 hours ago	23° C	Dry and partly cloudy.	Light winds from the WSW (13 kph at 250).	16 km Low: broken
Seattle Tacoma International Airport 44 km WSW 218m alt. 2 hours ago	22° C	Dry and partly cloudy.	Light winds from the SW (13 kph at 220).	16 km Low: few Mid: broken

* 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.