– Lat/Long: 47.51° N 121.74° W

Mount Si Weather Forecast

Cascade Range · United States

Issued: 9 pm Mon 02 Nov Local Time

Updates in:

hr min s

Update imminent

Issued: 9 pm Mon 02 Nov Local Time

Updates in:

hr min s

Update imminent

2 Mount Si Elevations: 2 Forecast Elevations:

	Days 1–4 Weather Summary Light rain (total 5mm), mostly falling on Wed night. Very mild (max 13°C on Tue morning, min 6°C on Wed night). Wind will be generally light.										Days 5–7 Weather Summary Light rain (total 8mm), mostly falling on Sat night. Very mild (max 16°C on Sat morning, min 5°C on Sun afternoon). Wind will be generally light.
		Tuesday 3			Wednesday 4			Thursday 5			Friday 6			Saturday 7
	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	cloudy	some clouds	clear	clear	some clouds	light rain	rain shwrs	rain shwrs	rain shwrs	rain shwrs	rain shwrs	some clouds	some clouds	clear	clear	rain shwrs
Cloud base (m)	5300	2750	2400		2050	2250	450	1700	850	5250	1700	2050	3700	8150	8550	2150
km/h	ESE	SE	WNW	ESE	SSW	SW	SW	SW	ESE	SSE	S	SSE	SE	SE	SE	S
See all weather maps
cm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
mm	—	—	—	—	—	0.1	4	0.9	0.1	0.9	1.6	—	—	—	—	4
max °C	8	13	11	8	12	11	8	9	9	7	11	11	10	16	14	11
min °C	7	11	9	7	11	9	6	8	6	6	7	10	9	14	11	6
chill °C	6	11	9	7	11	9	4	6	5	5	6	10	8	14	10	3

Freezing level m	2800	2350	2400	2500	2300	2100	1800	1500	1850	2500	2600	2900	3250	3250	3100	2550

	—	6:54	—	—	6:54	—	—	6:56	—	—	6:58	—	—	7:00	—	—
	—	—	4:45	—	—	4:44	—	—	4:43	—	—	4:42	—	—	4:39	—

Mount Si Weather (Days 0-3):

The weather forecast for Mount Si is: Light rain (total 5mm), mostly falling on Wed night. Very mild (max 13°C on Tue morning, min 6°C on Wed night). Wind will be generally light.

Mount Si Weather (Days 3-6):

Light rain (total 8mm), mostly falling on Sat night. Very mild (max 16°C on Sat morning, min 5°C on Sun afternoon). 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. 2 hours ago	6°C	Dry	Calm (0 kph at 69).
Renton Airport 36 km WSW 218m alt. 3 hours ago	7°C	Clear	Calm (0 kph at 0).	16 km
Auburn 39 km SW 119m alt. 2 hours ago	3°C	Dry	Calm (0 kph at 37).
Stampede Pass Airport 40 km SE 628m alt. 3 hours ago	1°C	Clear	Wind obs. (6 kph from 50 degs) was rejected.	16 km
Auburn wx 42 km SW 16m alt. 3 hours ago	5°C	Dry	Calm (0 kph at 191).
Monroe 44 km NW 80m alt. 3 hours ago	6°C	Dry	Calm (0 kph at 170).
Seattl / oeing Airport 44 km WSW 218m alt. 3 hours ago	8°C	Clear	Calm (0 kph at 0).	16 km
Seattle Tacoma International Airport 44 km WSW 218m alt. 3 hours ago	7°C	Dry and cloudy.	Light winds from the NNW (9 kph at 340).	16 km Low: broken Mid: overcast
BUOY-EBSW1 46 km W 3m alt. 2 hours ago
Seattle 46 km W 28m alt. 4 hours ago	6°C	Dry	Calm (0 kph at 245).

* 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.