– Lat/Long: 47.51° N 121.74° W

Mount Si
Weather Forecast, United States
Issued: 10 pm Tue 16 Jun Local Time
Updates in:
hr min s
Update imminent

Issued: 10 pm Tue 16 Jun 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 18°C on Fri afternoon, min 8°C on Tue night). Wind will be generally light.										Days 5–7 Weather Summary Mostly dry. Warm (max 20°C on Mon morning, min 11°C on Sat morning). Wind will be generally light.
		Wednesday 17			Thursday 18			Friday 19			Saturday 20			Sunday 21			Monday 22
	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	rain shwrs	clear	clear	clear	clear	clear	some clouds	some clouds	some clouds	clear	clear	clear	clear	clear	clear	clear	clear	clear	clear
km/h	N	NW	NW	N	E	NW	SE	S	WNW	WNW	WSW	WNW	NNW	N	NW	N	SSE	NW	WNW
See all weather maps
cm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
mm	0.3	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
max °C	10	8	13	13	13	16	17	17	18	17	11	15	14	14	17	17	20	20	20
min °C	8	8	11	11	12	15	16	16	17	12	11	13	11	12	15	16	18	20	15
chill °C	6	6	10	10	11	15	16	16	17	12	10	13	10	11	15	16	18	20	15

Freezing level m	3950	3750	3800	4200	4200	4300	4200	4050	4200	4050	4000	4000	4050	3900	4100	4100	4100	4300	4200
Cloud base (m)							5500	4700	4750

	—	5:09	—	—	5:09	—	—	5:09	—	—	5:09	—	—	5:09	—	—	5:09	—	—
	—	—	—	9:06	—	—	9:07	—	—	9:07	—	—	9:07	—	—	9:07	—	—	9:07

Mount Si Weather (Days 0-3):

The weather forecast for Mount Si is: Mostly dry. Very mild (max 18°C on Fri afternoon, min 8°C on Tue night). Wind will be generally light.

Mount Si Weather (Days 3-6):

Mostly dry. Warm (max 20°C on Mon morning, min 11°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. 50 minutes ago	13° C	Dry	Calm (0 kph at 297).
Snoqualmie Pass 30 km ESE 824m alt. 51 minutes ago	10° C	-	Calm (0 kph at 17).
Renton 30 km WSW 160m alt. 2 hours ago	16° C	Dry	Calm (2 kph at 141).
Black Diamond 32 km SSW 192m alt. 3 hours ago		-	Wind obs. (13 kph from 242 degs) was rejected.
Renton Airport 36 km WSW 218m alt. 2 hours ago	17° C	Clear	Light winds from the NNW (11 kph at 340).	16 km
Grotto wx 39 km NE 1101m alt. 2 hours ago	7° C	Dry	Calm (0 kph at 351).
Auburn 39 km SW 119m alt. 3 hours ago	18° C	Dry	Calm (0 kph at 70).
Stampede Pass Airport 40 km SE 628m alt. 3 hours ago	11° C	Dry and partly cloudy.	Wind obs. (11 kph from 1 degs) was rejected.	16 km Low: scattered
Woodinville 43 km WNW 137.2m alt. 3 hours ago	16° C	Dry	Wind obs. (10 kph from 290 degs) was rejected.
Seattl / oeing Airport 44 km WSW 218m alt. 2 hours ago	16° C	Clear	Calm (0 kph at 0).	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.