– Lat/Long: 47.51° N 121.74° W

Mount Si
Weather Forecast, United States
Issued: 4 am Wed 22 Apr Local Time
Updates in:
hr min s
Update imminent

Issued: 4 am Wed 22 Apr Local Time

Updates in:

hr min s

Update imminent

2 Mount Si Elevations: 2 Forecast Elevations:

	Days 1–3 Weather Summary Moderate rain (total 12mm), heaviest on Wed morning. Freeze-thaw conditions (max 7°C on Fri afternoon, min 0°C on Wed night). Wind will be generally light.									Days 4–6 Weather Summary Mostly dry. Mild temperatures (max 7°C on Sat morning, min 3°C on Sun night). Wind will be generally light.
	Wednesday 22			Thursday 23			Friday 24			Saturday 25			Sunday 26			Monday 27
	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	mod. rain	light rain	cloudy	cloudy	some clouds	clear	some clouds	clear	rain shwrs	some clouds	some clouds	rain shwrs	some clouds	rain shwrs	rain shwrs	some clouds	rain shwrs	rain shwrs
km/h	WSW	WSW	SW	W	NW	N	ESE	NNW	SE	E	ENE	ESE	W	NNW	NW	W	NW	NNW
See all weather maps
cm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
mm	9	3	—	—	—	—	—	—	0.1	—	—	0.2	—	0.1	0.4	—	0.1	0.1
max °C	3	3	2	1	3	3	5	7	6	7	7	5	5	7	6	4	7	6
min °C	2	3	0	0	3	3	4	6	5	5	7	5	5	7	3	3	6	4
chill °C	-2	-1	-4	-4	0	0	2	4	3	4	5	3	5	5	2	3	4	2

Freezing level m	1800	1850	1300	1450	2000	1850	2000	2150	2000	1950	2000	1900	1900	2050	1850	1750	2100	2050
Cloud base (m)	400	400	500	500	750	1750		2050		3350	2700	3200	3250	2400	8250	600	2000

	6:05	—	—	6:03	—	—	6:01	—	—	6:00	—	—	5:58	—	—	5:56	—	—
	—	—	8:05	—	—	8:07	—	—	8:07	—	—	8:09	—	—	8:10	—	—	8:12

Mount Si Weather (Days 0-3):

The weather forecast for Mount Si is: Moderate rain (total 12mm), heaviest on Wed morning. Freeze-thaw conditions (max 7°C on Fri afternoon, min 0°C on Wed night). Wind will be generally light.

Mount Si Weather (Days 3-6):

Mostly dry. Mild temperatures (max 7°C on Sat morning, min 3°C on Sun 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. 2 hours ago	11° C	Dry	Calm (0 kph at 341).
Snoqualmie Pass 30 km ESE 824m alt. 1 hour ago	6° C	-	Calm (0 kph at 159).
Renton 30 km WSW 160m alt. 1 hour ago	9° C	Dry	Calm (5 kph at 234).
Grotto wx 35 km NE 321m alt. 49 minutes ago	8° C	Dry	Calm (5 kph at 201).
Renton Airport 36 km WSW 218m alt. 2 hours ago	11° C	Light rain .	Light winds from the S.(Wind varies from 007 to 012 degs) (9 kph at 180).	16 km Low: overcast
Grotto wx 39 km NE 1101m alt. 30 minutes ago	3° C	Dry	Calm (0 kph at 313).
Auburn 39 km SW 119m alt. 1 hour ago	7° C	Dry	Calm (0 kph at 191).
Stampede Pass Airport 40 km SE 628m alt. 2 hours ago	3° C	Light rain .	Light winds from the W.(Wind varies from 160 to 350 degs) (13 kph at 260).	3 km Mid: broken High: overcast
Woodinville 43 km WNW 137.2m alt. 38 minutes ago	7° C	Dry	Wind obs. (11 kph from 255 degs) was rejected.
Seattl / oeing Airport 44 km WSW 218m alt. 2 hours ago	11° C	Light rain .	Light winds from the SSE (7 kph at 150).	10 km Mid: broken High: 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.