– Lat/Long: 47.51° N 121.74° W

Mount Si Weather Forecast

Cascade Range · United States

Issued: 4 am Tue 27 Oct Local Time

Updates in:

hr min s

Update imminent

Issued: 4 am Tue 27 Oct Local Time

Updates in:

hr min s

Update imminent

2 Mount Si Elevations: 2 Forecast Elevations:

	Days 1–3 Weather Summary Heavy rain (total 29mm), heaviest during Wed morning. Mild temperatures (max 8°C on Tue afternoon, min 2°C on Thu morning). Wind will be generally light.									Days 4–6 Weather Summary Light rain (total 7mm), mostly falling on Fri morning. Mild temperatures (max 9°C on Sat afternoon, min 3°C on Sat night). Wind will be generally light.
	Tuesday 27			Wednesday 28			Thursday 29			Friday 30			Saturday 31			Sunday 1
	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	light rain	light rain	rain shwrs	mod. rain	light rain	rain shwrs	clear	clear	light rain	mod. rain	rain shwrs	cloudy	some clouds	cloudy	some clouds	clear	clear	clear
Cloud base (m)	400	450	400	400	400	800	3500	6850	2250	400	450	1700	2000	2200	2100	750	850	9400
km/h	WSW	SW	SW	SW	SSW	SSE	ESE	ESE	ESE	SSW	ESE	ESE	SE	ESE	ESE	NW	NNW	E
See all weather maps
cm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
mm	3	2	10	7	5	1.2	—	—	1.1	7	0.3	—	—	—	—	—	—	—
max °C	7	8	6	5	6	4	7	8	5	4	6	5	8	9	5	5	7	4
min °C	7	7	5	5	5	3	2	7	4	4	5	4	4	8	3	3	7	3
chill °C	6	4	1	3	3	2	0	5	2	4	5	2	2	8	3	3	6	3

Freezing level m	1650	1550	1300	1200	1300	1100	1400	1500	1500	1200	1400	1600	1600	1600	1550	1350	1450	2350

	7:41	—	—	7:43	—	—	7:45	—	—	7:47	—	—	7:48	—	—	6:50	—	—
	—	5:58	—	—	5:55	—	—	5:53	—	—	5:52	—	—	5:51	—	—	4:50	—

Mount Si Weather (Days 0-3):

The weather forecast for Mount Si is: Heavy rain (total 29mm), heaviest during Wed morning. Mild temperatures (max 8°C on Tue afternoon, min 2°C on Thu morning). Wind will be generally light.

Mount Si Weather (Days 3-6):

Light rain (total 7mm), mostly falling on Fri morning. Mild temperatures (max 9°C on Sat afternoon, min 3°C on Sat 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
Renton 30 km WSW 160m alt. 1 hour ago	9°C	Dry	Calm (2 kph at 232).
Renton Airport 36 km WSW 218m alt. 2 hours ago	11°C	Dry and cloudy.	Light winds from the S (6 kph at 190).	16 km Low: broken Mid: broken High: overcast
Auburn 39 km SW 119m alt. 2 hours ago	13°C	Dry	Calm (0 kph at 103).
Stampede Pass Airport 40 km SE 628m alt. 2 hours ago	3°C	Light rain .	Calm (0 kph at 0).	0 km
Monroe 44 km NW 80m alt. 40 minutes ago	13°C	Dry	Calm (0 kph at 35).
Seattl / oeing Airport 44 km WSW 218m alt. 2 hours ago	11°C	Dry and cloudy.	Calm (0 kph at 0).	16 km Low: scattered Mid: broken High: overcast
Seattle Tacoma International Airport 44 km WSW 218m alt. 2 hours ago	10°C	Dry and partly cloudy.	Light winds from the SW.(Wind varies from 013 to 019 degs) (11 kph at 230).	14 km Low: few Mid: broken High: broken
BUOY-EBSW1 46 km W 3m alt. 1 hour ago
Snohomish 49 km NW 196m alt. 34 minutes ago	9°C	Dry	Light winds from the SW (6 kph at 215).
Seattle 49 km WSW 100m alt. 35 minutes ago		-	Light winds from the S (10 kph at 191).

* 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.