– Lat/Long: 47.51° N 121.74° W

Mount Si
Weather Forecast, United States
Issued: 10 am Thu 11 Jun Local Time
Updates in:
hr min s
Update imminent

Issued: 10 am Thu 11 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 24°C on Sat afternoon, min 9°C on Thu night). Wind will be generally light.									Days 4–6 Weather Summary Mostly dry. Warm (max 27°C on Sun afternoon, min 10°C on Tue night). Wind will be generally light.
	Thursday 11			Friday 12			Saturday 13			Sunday 14			Monday 15			Tuesday 16
	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	clear	some clouds	clear	clear	some clouds	clear
km/h	WNW	NW	NNW	NW	NW	E	NW	NNW	ESE	NW	NW	ENE	NW	WNW	SW	WSW	W	E
See all weather maps
cm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
mm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
max °C	14	18	15	15	19	16	22	24	21	25	27	24	26	27	23	18	21	16
min °C	11	17	9	12	18	13	18	24	17	21	27	19	22	27	14	16	20	10
chill °C	11	17	9	12	18	13	18	24	17	21	27	19	22	27	14	16	20	10

Freezing level m	3200	3250	3350	3350	3650	3450	3500	3800	3850	4050	4350	4600	4650	4600	4400	4200	4250	4650
Cloud base (m)	9450		2100		8900					9400		9350		9250			1800

	5:09	—	—	5:09	—	—	5:09	—	—	5:09	—	—	5:09	—	—	5:09	—	—
	—	—	9:02	—	—	9:04	—	—	9:04	—	—	9:05	—	—	9:05	—	—	9:06

Mount Si Weather (Days 0-3):

The weather forecast for Mount Si is: Mostly dry. Warm (max 24°C on Sat afternoon, min 9°C on Thu night). Wind will be generally light.

Mount Si Weather (Days 3-6):

Mostly dry. Warm (max 27°C on Sun afternoon, min 10°C on Tue 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. 2 hours ago	16° C	Dry	Calm (0 kph at 352).
Snoqualmie Pass 30 km ESE 824m alt. 2 hours ago	15° C	-	Calm (0 kph at 315).
Black Diamond 32 km SSW 192m alt. 2 hours ago		-	Wind obs. (6 kph from 38 degs) was rejected.
Grotto wx 35 km NE 321m alt. 3 hours ago	6° C	Dry	Calm (3 kph at 67).
Renton Airport 36 km WSW 218m alt. 2 hours ago	16° C	Clear	Light winds from the NNW (11 kph at 340).	16 km
Grotto wx 39 km NE 1101m alt. 3 hours ago	10° C	Dry	Calm (2 kph at 142).
Auburn 39 km SW 119m alt. 29 minutes ago		-	Calm (3 kph at 257).
Stampede Pass Airport 40 km SE 628m alt. 2 hours ago	9° C	Clear	Calm (0 kph at 0).	16 km
SHIP4328 42 km WSW 15m alt. 3 hours ago				- km
SHIP3711 42 km WSW 3m alt. 3 hours ago

* 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.