– Lat/Long: 47.51° N 121.74° W

Mount Si
Weather Forecast, United States
Issued: 4 pm Mon 06 Jul Local Time
Updates in:
hr min s
Update imminent

Issued: 4 pm Mon 06 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 19°C on Mon afternoon, min 7°C on Wed night). Wind will be generally light.											Days 5–7 Weather Summary Mostly dry. Very mild (max 14°C on Fri afternoon, min 8°C on Sat night). Wind will be generally light.
	Mon 6		Tuesday 7			Wednesday 8			Thursday 9			Friday 10			Saturday 11
	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	clear	clear	clear	clear	some clouds	rain shwrs	light rain	some clouds	some clouds	clear	clear	clear	clear	clear	clear	cloudy	some clouds
km/h	NW	WNW	WSW	W	N	SW	WSW	WNW	NNW	WNW	NNW	WSW	W	SSW	SW	W	SW
See all weather maps
cm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
mm	—	—	—	—	—	0.1	0.2	—	—	—	—	—	—	—	—	—	—
max °C	19	19	15	17	15	9	9	10	8	12	12	10	14	12	12	14	13
min °C	19	15	15	16	10	9	9	7	7	11	9	9	12	10	11	14	8
chill °C	19	15	15	16	9	8	7	6	6	10	8	9	11	10	10	14	6

Freezing level m	4050	3950	3850	4050	3800	3550	3650	3650	3300	3350	3750	3700	3650	3800	3900	3950	3800
Cloud base (m)	9600	9100	8800	7000	6900	450	450	650	950	3000			1850

	—	—	5:16	—	—	5:18	—	—	5:18	—	—	5:20	—	—	5:20	—	—
	—	9:06	—	—	9:05	—	—	9:05	—	—	9:04	—	—	9:02	—	—	9:02

Mount Si Weather (Days 0-3):

The weather forecast for Mount Si is: Mostly dry. Very mild (max 19°C on Mon afternoon, min 7°C on Wed night). Wind will be generally light.

Mount Si Weather (Days 3-6):

Mostly dry. Very mild (max 14°C on Fri afternoon, min 8°C on Sat 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	17° C	Dry	Calm (0 kph at 321).
Snoqualmie Pass 30 km ESE 824m alt. 1 hour ago	19° C	-	Calm (0 kph at 10).
Renton 30 km WSW 160m alt. 1 hour ago	23° C	Dry	Calm (0 kph at 282).
Grotto wx 35 km NE 321m alt. 2 hours ago	26° C	Dry	Light winds from the W (10 kph at 263).
Renton Airport 36 km WSW 218m alt. 3 hours ago	27° C	Clear	Light winds from the NW (9 kph at 310).	16 km
Grotto wx 39 km NE 1101m alt. 1 hour ago	14° C	Dry	Calm (0 kph at 349).
Auburn 39 km SW 119m alt. 2 hours ago	26° C	Dry	Calm (0 kph at 203).
Stampede Pass Airport 40 km SE 628m alt. 2 hours ago	21° C	Clear	Wind obs. (6 kph from 1 degs) was rejected.	16 km
Woodinville 43 km WNW 137.2m alt. 3 hours ago	28° C	Dry	Wind obs. (6 kph from 131 degs) was rejected.
Seattl / oeing Airport 44 km WSW 218m alt. 3 hours ago	25° C	Clear	Light winds from the WNW (9 kph at 300).	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.