– Lat/Long: 47.51° N 121.74° W

Mount Si
Weather Forecast, United States
Issued: 10 am Mon 27 Jul Local Time
Updates in:
hr min s
Update imminent

Issued: 10 am Mon 27 Jul Local Time

Updates in:

hr min s

Update imminent

2 Mount Si Elevations: 2 Forecast Elevations:

	Days 1–3 Weather Summary Some drizzle, heaviest during Tue morning. Warm (max 23°C on Mon afternoon, min 12°C on Tue night). Wind will be generally light.									Days 4–6 Weather Summary Light rain (total 2mm), mostly falling on Sat afternoon. Warm (max 25°C on Fri afternoon, min 10°C on Sat night). Wind will be generally light.
	Monday 27			Tuesday 28			Wednesday 29			Thursday 30			Friday 31			Saturday 1
	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	clear	clear	clear	rain shwrs	light rain	rain shwrs	some clouds	clear	clear	clear	some clouds	clear	clear	clear	clear	clear	rain shwrs	rain shwrs
Cloud base (m)	1700	2600	1700	1500	1650	1750	450				6750	9750		9650			750	950
km/h	WSW	W	S	WSW	W	WNW	W	NW	SE	W	WNW	SE	WNW	WNW	SSE	WSW	SW	SW
See all weather maps
cm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
mm	—	—	—	0.4	0.3	0.7	—	—	—	—	—	—	—	—	—	—	1.2	1.2
max °C	19	23	19	16	19	17	15	22	18	19	22	19	21	25	21	19	17	14
min °C	15	22	13	14	18	12	13	20	13	16	21	13	16	23	14	16	16	10
chill °C	15	22	13	14	18	12	13	20	13	16	21	13	16	23	14	16	16	10

Freezing level m	3350	3600	3700	3450	3650	3900	3950	4050	4200	4250	4100	4250	4500	4600	4550	3800	2950	3450

	5:37	—	—	5:39	—	—	5:39	—	—	5:41	—	—	5:43	—	—	5:43	—	—
	—	—	8:47	—	—	8:45	—	—	8:45	—	—	8:44	—	—	8:42	—	—	8:40

Mount Si Weather (Days 0-3):

The weather forecast for Mount Si is: Some drizzle, heaviest during Tue morning. Warm (max 23°C on Mon afternoon, min 12°C on Tue night). Wind will be generally light.

Mount Si Weather (Days 3-6):

Light rain (total 2mm), mostly falling on Sat afternoon. Warm (max 25°C on Fri afternoon, min 10°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. 2 hours ago	23° C	Dry	Light winds from the SW (6 kph at 215).
Renton Airport 36 km WSW 218m alt. 2 hours ago	23° C	-	Light winds from the S (7 kph at 170).	16 km Low: few
Auburn 39 km SW 119m alt. 1 hour ago		-	Calm (0 kph at 114).
Stampede Pass Airport 40 km SE 628m alt. 45 minutes ago	19° C	Clear	Wind obs. (7 kph from 1 degs) was rejected.	16 km
Seattl / oeing Airport 44 km WSW 218m alt. 2 hours ago	23° C	-	Light winds from the SW (15 kph at 230).	16 km Low: few
Seattle Tacoma International Airport 44 km WSW 218m alt. 2 hours ago	22° C	-	Light winds from the WSW (11 kph at 240).	16 km Low: few Mid: few High: scattered
BUOY-EBSW1 46 km W 3m alt. 53 minutes ago
Snohomish 49 km NW 196m alt. 1 hour ago	22° C	Dry	Light winds from the W (8 kph at 267).
Seattle 49 km WSW 100m alt. 36 minutes ago		-	Moderate winds from the SW (21 kph at 217).
BUOY-WPOW1 55 km W 3m alt. 41 minutes ago	20° C		Moderate winds from the SSE (24 kph at 160).

* 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.