– Lat/Long: 47.51° N 121.74° W

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

Issued: 10 am Wed 10 Jun Local Time

Updates in:

hr min s

Update imminent

2 Mount Si Elevations: 2 Forecast Elevations:

	Days 1–3 Weather Summary Light rain (total 4mm), mostly falling on Wed morning. Very mild (max 18°C on Thu afternoon, min 7°C on Wed morning). Wind will be generally light.									Days 4–6 Weather Summary Mostly dry. Warm (max 28°C on Mon afternoon, min 17°C on Sat morning). Wind will be generally light.
	Wednesday 10			Thursday 11			Friday 12			Saturday 13			Sunday 14			Monday 15
	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	rain shwrs	rain shwrs	clear	clear	clear	clear	some clouds	clear	clear	clear	clear	clear	clear	clear	clear	some clouds	some clouds	clear
km/h	NW	NNW	E	WNW	NW	NNW	NW	NW	E	NW	NNW	ESE	WNW	NNW	E	NW	NW	ENE
See all weather maps
cm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
mm	2	1.3	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
max °C	9	13	12	14	18	15	15	18	16	21	24	20	25	27	23	26	28	24
min °C	7	10	7	11	17	9	12	17	12	17	23	17	21	27	19	22	27	18
chill °C	6	9	7	11	17	9	12	17	12	17	23	17	21	27	19	22	27	18

Freezing level m	1750	2900	3300	3150	3350	3300	3300	3300	3150	3500	3800	3750	4100	4250	4400	4550	4750	4900
Cloud base (m)	550	850				2050		8650	8900					9450			6800	8300

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

Mount Si Weather (Days 0-3):

The weather forecast for Mount Si is: Light rain (total 4mm), mostly falling on Wed morning. Very mild (max 18°C on Thu afternoon, min 7°C on Wed morning). Wind will be generally light.

Mount Si Weather (Days 3-6):

Mostly dry. Warm (max 28°C on Mon afternoon, min 17°C on Sat morning). 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. 50 minutes ago	16° C	Dry	Calm (0 kph at 288).
Snoqualmie Pass 30 km ESE 824m alt. 53 minutes ago	13° C	-	Calm (0 kph at 295).
Renton 30 km WSW 160m alt. 2 hours ago	18° C	Dry	Calm (3 kph at 0).
Grotto wx 35 km NE 321m alt. 1 hour ago	15° C	Dry	Wind obs. (6 kph from 253 degs) was rejected.
Renton Airport 36 km WSW 218m alt. 2 hours ago	16° C	Dry and cloudy.	Light winds from the N (9 kph at 350).	16 km Low: overcast
Grotto wx 39 km NE 1101m alt. 1 hour ago	8° C	Dry	Calm (2 kph at 122).
Auburn 39 km SW 119m alt. 1 hour ago		-	Calm (3 kph at 32).
Stampede Pass Airport 40 km SE 628m alt. 1 hour ago	7° C	Dry and cloudy.	Light winds from the N (11 kph at 1).	16 km Low: scattered Mid: broken High: overcast
Woodinville 43 km WNW 137.2m alt. 1 hour ago	15° C	Dry	Wind obs. (18 kph from 308 degs) was rejected.
SHIP4046 43 km W 15m alt. 3 hours ago				- 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.