– Lat/Long: 47.51° N 121.74° W

Mount Si
Weather Forecast, United States
Issued: 4 am Sat 25 Jul Local Time
Updates in:
hr min s
Update imminent

Issued: 4 am Sat 25 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 Sun morning. Warm (max 23°C on Mon afternoon, min 12°C on Sun night). Wind will be generally light.									Days 4–6 Weather Summary Mostly dry. Warm (max 23°C on Thu afternoon, min 12°C on Tue night). Wind will be generally light.
	Saturday 25			Sunday 26			Monday 27			Tuesday 28			Wednesday 29			Thursday 30
	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	rain shwrs	rain shwrs	rain shwrs	rain shwrs	light rain	rain shwrs	clear	clear	clear	some clouds	rain shwrs	rain shwrs	some clouds	clear	clear	clear	clear	clear
Cloud base (m)	600	900	850	1650	900	3150				2000	1650		450	9050				8600
km/h	WSW	W	SSW	WSW	W	SSE	W	WSW	S	WSW	WNW	SW	WNW	NW	ENE	NW	NW	NE
See all weather maps
cm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
mm	0.1	0.4	0.1	0.6	0.4	0.1	—	—	—	—	0.2	0.1	—	—	—	—	—	—
max °C	15	18	16	17	18	16	19	23	20	18	20	18	17	22	18	20	23	20
min °C	15	17	14	15	17	12	15	22	12	15	20	12	13	20	12	15	22	14
chill °C	15	17	14	15	17	12	15	22	12	15	20	12	13	20	12	15	22	14

Freezing level m	3350	3000	3600	3450	3350	3350	3500	3600	3750	3600	3900	4000	3950	4100	4200	4300	4500	4600

	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 morning. Warm (max 23°C on Mon afternoon, min 12°C on Sun night). Wind will be generally light.

Mount Si Weather (Days 3-6):

Mostly dry. Warm (max 23°C on Thu afternoon, min 12°C on Tue 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. 1 hour ago	16° C	Dry	Calm (5 kph at 218).
Renton Airport 36 km WSW 218m alt. 2 hours ago	17° C	Dry and cloudy.	Light winds from the SSW (13 kph at 210).	16 km Low: broken Mid: overcast
Auburn 39 km SW 119m alt. 2 hours ago	26° C	Dry	Calm (0 kph at 95).
Stampede Pass Airport 40 km SE 628m alt. 3 hours ago	12° C	Clear	Wind obs. (6 kph from 210 degs) was rejected.	16 km
SHIP1475 43 km W 15m alt. 1 hour ago				- km
SHIP8501 43 km W 15m alt. 1 hour ago				- km
SHIP2746 43 km W 15m alt. 3 hours ago	16° C			17.7 km
SHIP3823 43 km W 3m alt. 1 hour ago	20° C
SHIP5963 43 km W 15m alt. 3 hours ago	16° C			17.7 km
SHIP2030 43 km W 3m alt. 3 hours ago	15° C		(0 kph at —)	20.4 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.