– Lat/Long: 47.51° N 121.74° W

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

Issued: 4 am Wed 22 Jul Local Time

Updates in:

hr min s

Update imminent

2 Mount Si Elevations: 2 Forecast Elevations:

	Days 1–3 Weather Summary Mostly dry. Warm (max 32°C on Wed afternoon, min 14°C on Fri night). Wind will be generally light.									Days 4–6 Weather Summary Mostly dry. Warm (max 21°C on Sun afternoon, min 12°C on Sat 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

	clear	clear	rain shwrs	clear	rain shwrs	clear	clear	clear	clear	clear	light rain	rain shwrs	some clouds	some clouds	rain shwrs	rain shwrs	some clouds	clear
Cloud base (m)		9050	4900	9400							1700	550	1900	1850	900	600	1750
km/h	WNW	NW	SSE	W	W	S	W	W	S	WSW	WSW	SW	WSW	WSW	SW	WSW	W	SE
See all weather maps
cm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
mm	—	—	0.3	—	0.5	—	—	—	—	—	0.1	0.1	—	—	0.2	0.3	—	—
max °C	30	32	26	21	23	20	21	26	22	18	19	16	18	21	17	15	21	19
min °C	26	32	18	18	23	16	18	24	14	16	16	12	15	21	13	14	20	13
chill °C	26	32	18	18	23	16	18	24	14	16	16	12	15	21	13	14	20	13

Freezing level m	4700	4800	4650	4550	4450	4350	4250	4150	3850	3400	3100	3550	3600	3450	3400	3550	3550	3750

	5:31	—	—	5:33	—	—	5:33	—	—	5:35	—	—	5:35	—	—	5:37	—	—
	—	—	8:52	—	—	8:52	—	—	8:51	—	—	8:50	—	—	8:49	—	—	8:47

Mount Si Weather (Days 0-3):

The weather forecast for Mount Si is: Mostly dry. Warm (max 32°C on Wed afternoon, min 14°C on Fri night). Wind will be generally light.

Mount Si Weather (Days 3-6):

Mostly dry. Warm (max 21°C on Sun afternoon, min 12°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. 36 minutes ago	23° C	Dry	Calm (0 kph at 322).
Renton Airport 36 km WSW 218m alt. 2 hours ago	19° C	Clear	Light winds from the SE (6 kph at 130).	16 km
Auburn 39 km SW 119m alt. 2 hours ago	24° C	Dry	Calm (0 kph at 168).
Stampede Pass Airport 40 km SE 628m alt. 2 hours ago	22° C	Clear	Calm (0 kph at 0).	16 km
Seattl / oeing Airport 44 km WSW 218m alt. 2 hours ago	20° C	Clear	Calm (0 kph at 0).	16 km
Seattle Tacoma International Airport 44 km WSW 218m alt. 2 hours ago	19° C	-	Light winds from the NW (6 kph at 310).	16 km Low: few
BUOY-EBSW1 46 km W 3m alt. 1 hour ago
Snohomish 49 km NW 196m alt. 3 hours ago	13° C	Dry	Calm (0 kph at 284).
Seattle 49 km WSW 100m alt. 2 hours ago	29° C	-	Wind obs. (35 kph from 161 degs) was rejected.
BUOY-WPOW1 55 km W 3m alt. 53 minutes ago	15° C		Light winds from the NNE (9 kph at 30).

* 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.