– Lat/Long: 47.51° N 121.74° W

Mount Si
Weather Forecast, United States
Issued: 4 am Sat 11 Jul Local Time
Updates in:
hr min s
Update imminent

Issued: 4 am Sat 11 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 Sat night. Warm (max 23°C on Mon afternoon, min 9°C on Sat night). Wind will be generally light.									Days 4–6 Weather Summary Light rain (total 4mm), mostly falling on Thu morning. Warm (max 24°C on Tue afternoon, min 10°C on Wed night). Wind will be generally light.
	Saturday 11			Sunday 12			Monday 13			Tuesday 14			Wednesday 15			Thursday 16
	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	some clouds	some clouds	rain shwrs	clear	clear	clear	clear	clear	clear	clear	clear	clear	clear	clear	rain shwrs	light rain	clear	clear
km/h	W	W	SW	WSW	NW	ENE	WNW	NW	ESE	WNW	W	ESE	WSW	W	WSW	SSW	NW	ENE
See all weather maps
cm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
mm	—	—	1.2	—	—	—	—	—	—	—	—	—	—	—	0.2	4	—	—
max °C	16	19	17	14	20	16	19	23	20	20	24	19	16	20	17	11	19	18
min °C	13	19	9	10	18	11	15	22	14	17	22	11	13	19	10	10	15	13
chill °C	13	19	8	10	18	11	15	22	14	17	22	11	13	19	9	10	15	13

Freezing level m	3300	3450	2700	3350	3550	3800	3950	4100	4150	4000	4000	3700	3300	3200	2550	2850	3800	4100
Cloud base (m)	1700	1850	600				9350	7000	5550				5800		2100	450

	5:20	—	—	5:20	—	—	5:22	—	—	5:22	—	—	5:24	—	—	5:24	—	—
	—	—	9:02	—	—	9:01	—	—	9:00	—	—	9:00	—	—	9:00	—	—	8:59

Mount Si Weather (Days 0-3):

The weather forecast for Mount Si is: Some drizzle, heaviest during Sat night. Warm (max 23°C on Mon afternoon, min 9°C on Sat night). Wind will be generally light.

Mount Si Weather (Days 3-6):

Light rain (total 4mm), mostly falling on Thu morning. Warm (max 24°C on Tue afternoon, min 10°C on Wed 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
Harman Heights wx 6 km SSW 251m alt. 50 minutes ago	14° C	Dry	Calm (0 kph at 154).
Snoqualmie Pass 30 km ESE 824m alt. 1 hour ago	14° C	-	Calm (0 kph at 68).
Renton 30 km WSW 160m alt. 1 hour ago	14° C	Dry	Calm (0 kph at 247).
Grotto wx 35 km NE 321m alt. 29 minutes ago	13° C	Dry	Calm (0 kph at 158).
Renton Airport 36 km WSW 218m alt. 2 hours ago	17° C	Dry and cloudy.	Light winds from the SW (6 kph at 220).	16 km Low: overcast
Grotto wx 39 km NE 1101m alt. 26 minutes ago	11° C	Dry	Calm (0 kph at 329).
Auburn 39 km SW 119m alt. 32 minutes ago		-	Calm (0 kph at 150).
Stampede Pass Airport 40 km SE 628m alt. 2 hours ago	10° C	Dry and cloudy.	Calm.(Wind varies from 004 to 011 degs) (0 kph at 0).	16 km Low: broken Mid: broken High: overcast
SHIP1821 43 km W 15m alt. 1 hour ago				- km
SHIP7542 43 km W 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.