– Lat/Long: 47.51° N 121.74° W

Mount Si
Weather Forecast, United States
Issued: 10 am Thu 25 Jun Local Time
Updates in:
hr min s
Update imminent

Issued: 10 am Thu 25 Jun Local Time

Updates in:

hr min s

Update imminent

2 Mount Si Elevations: 2 Forecast Elevations:

	Days 1–3 Weather Summary Heavy rain (total 20mm), heaviest during Fri morning. Very mild (max 11°C on Thu morning, min 4°C on Fri night). Winds decreasing (fresh winds from the SW on Fri morning, light winds from the W by Sat morning).									Days 4–6 Weather Summary Light rain (total 3mm), mostly falling on Mon morning. Mild temperatures (max 6°C on Sun afternoon, min 4°C on Mon night). Wind will be generally light.
	Thursday 25			Friday 26			Saturday 27			Sunday 28			Monday 29			Tuesday 30
	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	cloudy	cloudy	light rain	light rain	rain shwrs	rain shwrs	rain shwrs	rain shwrs	rain shwrs	light rain	light rain	light rain	light rain	light rain	light rain	light rain	light rain	rain shwrs
km/h	SW	SW	SW	SW	WSW	SW	WNW	NW	W	SW	WSW	W	WSW	WSW	WSW	SW	SW	SW
See all weather maps
cm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
mm	—	—	3	4	4	6	1.7	1.2	0.4	0.1	0.2	0.3	1	0.4	0.3	0.1	0.2	0.5
max °C	11	11	9	7	7	7	4	7	7	5	6	6	5	6	6	4	6	5
min °C	11	10	6	7	7	4	4	5	6	5	6	6	5	6	4	4	5	4
chill °C	8	8	2	2	4	0	2	3	4	2	3	4	2	3	0	0	1	1

Freezing level m	3250	2700	2900	2350	2500	2050	2050	2450	2850	2950	3050	3300	3200	3250	2800	2250	2450	2200
Cloud base (m)	5600	2300	400	400	700	1450	750	850	1600	550	500	400	400	400	400	600	500	1600

	5:09	—	—	5:11	—	—	5:11	—	—	5:11	—	—	5:11	—	—	5:11	—	—
	—	—	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: Heavy rain (total 20mm), heaviest during Fri morning. Very mild (max 11°C on Thu morning, min 4°C on Fri night). Winds decreasing (fresh winds from the SW on Fri morning, light winds from the W by Sat morning).

Mount Si Weather (Days 3-6):

Light rain (total 3mm), mostly falling on Mon morning. Mild temperatures (max 6°C on Sun afternoon, min 4°C on Mon 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. 1 hour ago	20° C	Dry	Calm (0 kph at 79).
Snoqualmie Pass 30 km ESE 824m alt. 1 hour ago	22° C	-	Calm (0 kph at 311).
Renton 30 km WSW 160m alt. 1 hour ago	17° C	Dry	Calm (3 kph at 229).
Grotto wx 35 km NE 321m alt. 2 hours ago	18° C	Dry	Light winds from the WSW (10 kph at 253).
Renton Airport 36 km WSW 218m alt. 2 hours ago	18° C	Dry and partly cloudy.	Light winds from the S (11 kph at 170).	16 km Low: scattered
Grotto wx 39 km NE 1101m alt. 52 minutes ago	17° C	Dry	Calm (3 kph at 101).
Auburn 39 km SW 119m alt. 44 minutes ago		-	Calm (0 kph at 65).
Stampede Pass Airport 40 km SE 628m alt. 3 hours ago	14° C	Dry and partly cloudy.	Wind obs. (7 kph from 1 degs) was rejected.	16 km Low: broken
Woodinville 43 km WNW 137.2m alt. 1 hour ago	23° C	Dry	Wind obs. (10 kph from 307 degs) was rejected.
Seattl / oeing Airport 44 km WSW 218m alt. 3 hours ago	16° C	Dry and cloudy.	Light winds from the S (15 kph at 170).	16 km Low: overcast

* 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.