– Lat/Long: 47.51° N 121.74° W

Mount Si
Weather Forecast, United States
Issued: 10 pm Fri 24 Jul Local Time
Updates in:
hr min s
Update imminent

Issued: 10 pm Fri 24 Jul Local Time

Updates in:

hr min s

Update imminent

2 Mount Si Elevations: 2 Forecast Elevations:

	Days 1–4 Weather Summary Some drizzle, heaviest during Sun night. Warm (max 22°C on Fri night, min 12°C on Sun night). Wind will be generally light.										Days 5–7 Weather Summary Mostly dry. Warm (max 24°C on Thu afternoon, min 13°C on Mon night). Wind will be generally light.
		Saturday 25			Sunday 26			Monday 27			Tuesday 28			Wednesday 29			Thursday 30
	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	clear	some clouds	rain shwrs	some clouds	rain shwrs	rain shwrs	rain shwrs	clear	clear	clear	clear	some clouds	rain shwrs	rain shwrs	clear	clear	clear	clear	clear
Cloud base (m)		550	1900	900	950	1600	1700	2050	1950		1950	2100	2000	550		9300
km/h	S	WSW	W	SW	WSW	W	SSW	W	W	SE	SW	W	WSW	WNW	NW	NE	NW	NW	ENE
See all weather maps
cm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
mm	—	—	0.2	—	0.1	0.1	0.6	—	—	—	—	—	0.3	0.3	—	—	—	—	—
max °C	22	16	19	16	18	19	16	18	22	20	19	21	16	15	21	17	20	24	21
min °C	14	15	18	13	15	19	12	15	21	13	15	21	13	13	19	13	17	23	15
chill °C	14	15	18	13	15	19	12	15	21	13	15	21	13	13	19	13	17	23	15

Freezing level m	3850	3400	3200	3650	3550	3350	3300	3600	3750	3850	3650	3300	3750	3950	4100	4400	4350	4600	4500

	—	5:35	—	—	5:35	—	—	5:37	—	—	5:39	—	—	5:39	—	—	5:41	—	—
	—	—	—	8:50	—	—	8:49	—	—	8:47	—	—	8:45	—	—	8:45	—	—	8:44

Mount Si Weather (Days 0-3):

The weather forecast for Mount Si is: Some drizzle, heaviest during Sun night. Warm (max 22°C on Fri night, min 12°C on Sun night). Wind will be generally light.

Mount Si Weather (Days 3-6):

Mostly dry. Warm (max 24°C on Thu afternoon, min 13°C on Mon 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	16° C	Dry	Calm (0 kph at 199).
Renton Airport 36 km WSW 218m alt. 2 hours ago	18° C	Dry and partly cloudy.	Light winds from the S (11 kph at 180).	16 km Low: scattered
Auburn 39 km SW 119m alt. 2 hours ago	19° C	Dry	Calm (0 kph at 95).
Stampede Pass Airport 40 km SE 628m alt. 2 hours ago	12° C	Clear	Wind obs. (7 kph from 200 degs) was rejected.	16 km
Seattl / oeing Airport 44 km WSW 218m alt. 2 hours ago	17° C	Dry and partly cloudy.	Light winds from the S (7 kph at 180).	16 km Low: broken
Seattle Tacoma International Airport 44 km WSW 218m alt. 2 hours ago	16° C	Dry and partly cloudy.	Light winds from the SSW (17 kph at 200).	16 km Low: broken
BUOY-EBSW1 46 km W 3m alt. 1 hour ago
Snohomish 49 km NW 196m alt. 2 hours ago	16° C	Dry	Calm (3 kph at 201).
Seattle 49 km WSW 100m alt. 2 hours ago	26° C	-
SHIP1014 50 km WSW 15m alt. 2 hours ago				- km

* 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.