– Lat/Long: 47.51° N 121.74° W

Mount Si
Weather Forecast, United States
Issued: 10 am Sat 27 Jun Local Time
Updates in:
hr min s
Update imminent

Issued: 10 am Sat 27 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 Sat morning. Mild temperatures (max 8°C on Sun afternoon, min 4°C on Sat morning). Wind will be generally light.									Days 4–6 Weather Summary Some drizzle, heaviest during Wed morning. Very mild (max 10°C on Thu afternoon, min 3°C on Wed night). Wind will be generally light.
	Saturday 27			Sunday 28			Monday 29			Tuesday 30			Wednesday 1			Thursday 2
	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	light rain	light rain	rain shwrs	light rain	light rain	rain shwrs	cloudy	rain shwrs	rain shwrs	light rain	rain shwrs	some clouds	light rain	rain shwrs	rain shwrs	some clouds	clear	clear
km/h	WSW	NW	NW	W	W	NW	W	WNW	NW	WSW	WSW	W	SW	SW	SSW	W	WNW	NNW
See all weather maps
cm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
mm	1.8	1.1	0.7	0.1	0.2	0.2	—	0.1	0.2	0.1	0.2	—	0.4	0.3	0.2	—	—	—
max °C	4	6	7	5	8	8	6	8	8	5	7	7	4	5	5	5	10	9
min °C	4	5	5	5	6	6	6	7	6	5	6	5	4	4	3	3	8	6
chill °C	0	4	3	3	4	4	4	6	5	3	5	3	-1	0	0	2	8	4

Freezing level m	1850	2250	2650	3100	3300	3700	3600	3450	3400	3150	3150	2750	2100	2200	2100	2350	2850	2800
Cloud base (m)	1650	1550	1700	450	700	600	450	650	450	600	750	650	450	550	800	1550	1850

	5:11	—	—	5:11	—	—	5:11	—	—	5:11	—	—	5:13	—	—	5:13	—	—
	—	—	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: Light rain (total 4mm), mostly falling on Sat morning. Mild temperatures (max 8°C on Sun afternoon, min 4°C on Sat morning). Wind will be generally light.

Mount Si Weather (Days 3-6):

Some drizzle, heaviest during Wed morning. Very mild (max 10°C on Thu afternoon, min 3°C on Wed night). 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. 59 minutes ago	17° C	Dry	Calm (0 kph at 319).
Snoqualmie Pass 30 km ESE 824m alt. 3 hours ago	11° C	-	Calm (0 kph at 159).
Renton 30 km WSW 160m alt. 55 minutes ago	13° C	Dry	Calm (0 kph at 80).
Grotto wx 35 km NE 321m alt. 1 hour ago	16° C	Dry	Light winds from the WSW (6 kph at 242).
Renton Airport 36 km WSW 218m alt. 2 hours ago	14° C	Dry and cloudy.	Light winds from the NNE (6 kph at 20).	16 km Low: few Mid: scattered High: overcast
Grotto wx 39 km NE 1101m alt. 1 hour ago	7° C	Dry	Calm (0 kph at 135).
Auburn 39 km SW 119m alt. 3 hours ago		-	Wind obs. (6 kph from 282 degs) was rejected.
Stampede Pass Airport 40 km SE 628m alt. 2 hours ago	5° C	Light rain .	Wind obs. (7 kph from 1 degs) was rejected.	6 km Mid: few High: broken
SHIP3150 43 km W 15m alt. 2 hours ago				- km
Woodinville 43 km WNW 137.2m alt. 3 hours ago	13° C	Dry	Wind obs. (16 kph from 270 degs) was rejected.

* 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.