– Lat/Long: 47.51° N 121.74° W

Mount Si
Weather Forecast, United States
Issued: 4 pm Tue 07 Jul Local Time
Updates in:
hr min s
Update imminent

Issued: 4 pm Tue 07 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 14°C on Tue afternoon, min 8°C on Wed night). Wind will be generally light.											Days 5–7 Weather Summary Mostly dry. Very mild (max 18°C on Mon morning, min 8°C on Sat morning). Wind will be generally light.
	Tue 7		Wednesday 8			Thursday 9			Friday 10			Saturday 11			Sunday 12
	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	some clouds	some clouds	rain shwrs	rain shwrs	some clouds	some clouds	clear	some clouds	cloudy	rain shwrs	some clouds	some clouds	clear	clear	clear	clear	clear
km/h	WNW	N	WNW	NW	WNW	WNW	W	W	SW	W	WSW	SW	WSW	W	SW	NNW	N
See all weather maps
cm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
mm	—	—	0.1	0.2	—	—	—	—	—	0.1	—	—	—	—	—	—	—
max °C	14	14	9	9	10	9	12	12	9	11	11	8	12	11	13	16	17
min °C	14	10	9	9	8	8	11	8	8	10	9	8	10	8	10	14	16
chill °C	14	8	8	9	6	7	10	6	6	9	8	5	8	6	10	14	16

Freezing level m	3950	3750	3700	3800	3700	3400	3550	3650	3550	3450	3350	3400	3450	3850	4000	4250	4500
Cloud base (m)			450	650	650	1600	2750	1850	550	700	2000	700	850

	—	—	5:18	—	—	5:18	—	—	5:20	—	—	5:20	—	—	5:20	—	—
	—	9:05	—	—	9:05	—	—	9:04	—	—	9:02	—	—	9:02	—	—	9:01

Mount Si Weather (Days 0-3):

The weather forecast for Mount Si is: Mostly dry. Very mild (max 14°C on Tue afternoon, min 8°C on Wed night). Wind will be generally light.

Mount Si Weather (Days 3-6):

Mostly dry. Very mild (max 18°C on Mon morning, min 8°C on Sat 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. 1 hour ago	17° C	Dry	Calm (0 kph at 335).
Snoqualmie Pass 30 km ESE 824m alt. 1 hour ago	16° C	-	Calm (0 kph at 238).
Renton 30 km WSW 160m alt. 1 hour ago	19° C	Dry	Calm (2 kph at 354).
Grotto wx 35 km NE 321m alt. 42 minutes ago	18° C	Dry	Light winds from the WSW (10 kph at 246).
Renton Airport 36 km WSW 218m alt. 2 hours ago	23° C	Clear	Light winds from the NNW (13 kph at 330).	16 km
Grotto wx 39 km NE 1101m alt. 49 minutes ago	11° C	Dry	Calm (0 kph at 13).
Auburn 39 km SW 119m alt. 48 minutes ago	28° C	Dry	Calm (0 kph at 76).
Stampede Pass Airport 40 km SE 628m alt. 2 hours ago	15° C	Clear	Wind obs. (7 kph from 1 degs) was rejected.	16 km
Woodinville 43 km WNW 137.2m alt. 3 hours ago	23° C	Dry	Wind obs. (13 kph from 306 degs) was rejected.
Seattl / oeing Airport 44 km WSW 218m alt. 2 hours ago	22° C	Clear	Light winds from the N (6 kph at 1).	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.