– Lat/Long: 47.51° N 121.74° W

Mount Si Weather Forecast

Cascade Range · United States

Issued: 10 pm Tue 13 Oct Local Time

Updates in:

hr min s

Update imminent

Issued: 10 pm Tue 13 Oct Local Time

Updates in:

hr min s

Update imminent

2 Mount Si Elevations: 2 Forecast Elevations:

	Days 1–4 Weather Summary Mostly dry. Warm (max 22°C on Thu afternoon, min 11°C on Tue night). Wind will be generally light.										Days 5–7 Weather Summary Light rain (total 6mm), mostly falling on Sat morning. Very mild (max 16°C on Fri night, min 6°C on Sat night). Wind will be generally light.
		Wednesday 14			Thursday 15			Friday 16			Saturday 17			Sunday 18
	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	rain shwrs	rain shwrs	clear	clear	clear	clear	clear	clear	clear	rain shwrs	rain shwrs	rain shwrs	some clouds	some clouds	some clouds	some clouds
Cloud base (m)	900	750	900	9150			9450	9250	8700		500				6850	5550
km/h	SSW	WNW	NNW	ESE	ESE	ESE	ESE	SE	SW	SSW	WSW	NNW	ENE	ESE	E	ESE
See all weather maps
cm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
mm	0.2	0.1	—	—	—	—	—	—	—	0.3	4	2	—	—	—	—
max °C	12	14	16	12	19	22	15	20	22	16	11	10	7	12	14	9
min °C	11	11	16	11	12	21	13	14	21	12	11	10	6	7	13	9
chill °C	11	11	16	10	11	21	12	14	21	11	9	9	6	6	13	8

Freezing level m	3200	3550	3650	3950	4000	3900	4050	4000	3800	3350	2050	1850	2400	2950	3150	3150

	—	7:22	—	—	7:24	—	—	7:26	—	—	7:28	—	—	7:28	—	—
	—	—	6:21	—	—	6:19	—	—	6:16	—	—	6:15	—	—	6:14	—

Mount Si Weather (Days 0-3):

The weather forecast for Mount Si is: Mostly dry. Warm (max 22°C on Thu afternoon, min 11°C on Tue night). Wind will be generally light.

Mount Si Weather (Days 3-6):

Light rain (total 6mm), mostly falling on Sat morning. Very mild (max 16°C on Fri night, min 6°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 Airport 36 km WSW 218m alt. 2 hours ago	14°C	Dry and cloudy.	Light winds from the SE (9 kph at 140).	16 km Low: scattered Mid: overcast
Auburn 39 km SW 119m alt. 2 hours ago	8°C	Dry	Calm (0 kph at 288).
Stampede Pass Airport 40 km SE 628m alt. 2 hours ago	6°C	Mist -.	Wind obs. (6 kph from 1 degs) was rejected.	1 km
Monroe 44 km NW 80m alt. 1 hour ago	17°C	Dry	Calm (0 kph at 36).
Seattl / oeing Airport 44 km WSW 218m alt. 2 hours ago	14°C	Dry and cloudy.	Light winds from the SE (15 kph at 140).	16 km Low: few Mid: overcast
Seattle Tacoma International Airport 44 km WSW 218m alt. 2 hours ago	14°C	Dry and cloudy.	Light winds from the S (17 kph at 170).	16 km Low: few Mid: overcast
Snohomish 49 km NW 196m alt. 1 hour ago	11°C	Dry	Calm (0 kph at 78).
Seattle 49 km WSW 100m alt. 2 hours ago		-	Calm (0 kph at 309).
BUOY-WPOW1 55 km W 3m alt. 2 hours ago	14°C		Moderate winds from the S (24 kph at 180).
SHIP4246 60 km SSW 3m alt. 2 hours ago

* 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.