– Lat/Long: 47.51° N 121.74° W

Mount Si
Weather Forecast, United States
Issued: 4 am Fri 19 Jun Local Time
Updates in:
hr min s
Update imminent

Issued: 4 am Fri 19 Jun Local Time

Updates in:

hr min s

Update imminent

2 Mount Si Elevations: 2 Forecast Elevations:

	Days 1–3 Weather Summary Mostly dry. Warm (max 25°C on Fri afternoon, min 11°C on Fri night). Wind will be generally light.									Days 4–6 Weather Summary Mostly dry. Warm (max 27°C on Mon afternoon, min 9°C on Wed night). Wind will be generally light.
	Friday 19			Saturday 20			Sunday 21			Monday 22			Tuesday 23			Wednesday 24
	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	clear	clear	clear	clear	clear	clear	clear	clear	clear	clear	clear	clear	some clouds	some clouds	some clouds	some clouds	some clouds	rain shwrs
km/h	W	WNW	S	WSW	W	ENE	WNW	NW	E	ESE	NW	ESE	W	WNW	NNE	WSW	W	WSW
See all weather maps
cm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
mm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	0.3
max °C	23	25	22	16	20	18	17	22	19	25	27	23	25	26	23	15	20	15
min °C	20	25	11	14	19	11	14	21	15	20	26	19	22	25	12	13	18	9
chill °C	20	25	10	14	19	11	14	21	15	20	26	19	22	25	12	13	18	8

Freezing level m	3900	4050	3900	3600	3600	3550	3450	3650	3550	3600	3950	3900	3850	3900	3750	3300	3050	2750
Cloud base (m)	5600	5400	9400			9300				8950	8900		6650	5600			1850	700

	5:09	—	—	5:09	—	—	5:09	—	—	5:09	—	—	5:09	—	—	5:09	—	—
	—	—	9:07	—	—	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. Warm (max 25°C on Fri afternoon, min 11°C on Fri night). Wind will be generally light.

Mount Si Weather (Days 3-6):

Mostly dry. Warm (max 27°C on Mon afternoon, min 9°C on Wed night). Wind will be generally light.

This table gives the weather forecast for Mount Si at the specific elevation of 500 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 19).
Snoqualmie Pass 30 km ESE 824m alt. 1 hour ago	22° C	-	Calm (0 kph at 58).
Renton 30 km WSW 160m alt. 1 hour ago	21° C	Dry	Calm (0 kph at 290).
Black Diamond 32 km SSW 192m alt. 2 hours ago		-	Calm (5 kph at 0).
Grotto wx 35 km NE 321m alt. 48 minutes ago	22° C	Dry	Calm (3 kph at 249).
Renton Airport 36 km WSW 218m alt. 3 hours ago	18° C	Clear	Light winds from the NNW (11 kph at 340).	16 km
Grotto wx 39 km NE 1101m alt. 53 minutes ago	23° C	Dry	Calm (2 kph at 109).
Auburn 39 km SW 119m alt. 1 hour ago		-	Calm (3 kph at 69).
Stampede Pass Airport 40 km SE 628m alt. 3 hours ago	17° C	Clear	Wind obs. (6 kph from 1 degs) was rejected.	16 km
Woodinville 43 km WNW 137.2m alt. 2 hours ago	19° C	Dry	Calm (2 kph at 283).

* 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.