– Lat/Long: 47.51° N 121.74° W

Mount Si
Weather Forecast, United States
Issued: 10 am Sat 04 Jul Local Time
Updates in:
hr min s
Update imminent

Issued: 10 am Sat 04 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 24°C on Mon afternoon, min 11°C on Sat night). Wind will be generally light.									Days 4–6 Weather Summary Light rain (total 5mm), mostly falling on Wed morning. Warm (max 23°C on Tue afternoon, min 11°C on Wed night). Wind will be generally light.
	Saturday 4			Sunday 5			Monday 6			Tuesday 7			Wednesday 8			Thursday 9
	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	some clouds	clear	clear	clear	clear	clear	some clouds	some clouds	clear	clear	clear	rain shwrs	light rain	light rain	light rain	rain shwrs	clear	clear
km/h	W	WNW	N	NW	NW	ENE	WNW	WNW	SSE	WSW	W	SW	WSW	WNW	WNW	N	NW	NE
See all weather maps
cm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
mm	—	—	—	—	—	—	—	—	—	—	—	0.1	1.5	1.7	1.3	0.1	—	—
max °C	16	20	17	17	21	18	20	24	21	20	23	19	12	15	14	13	20	17
min °C	13	19	11	13	20	14	17	24	14	16	22	12	12	13	11	11	19	13
chill °C	13	19	11	13	20	14	17	24	14	16	22	12	11	13	11	11	19	13

Freezing level m	3500	3700	3850	3850	4050	4100	4050	4200	4200	4150	4100	3150	2800	3250	3800	3900	3950	4000
Cloud base (m)	550	1900	900			9400		7000	8750	8350			550	550	450	500

	5:15	—	—	5:16	—	—	5:16	—	—	5:16	—	—	5:18	—	—	5:18	—	—
	—	—	9:06	—	—	9:06	—	—	9:06	—	—	9:05	—	—	9:05	—	—	9:04

Mount Si Weather (Days 0-3):

The weather forecast for Mount Si is: Mostly dry. Warm (max 24°C on Mon afternoon, min 11°C on Sat night). Wind will be generally light.

Mount Si Weather (Days 3-6):

Light rain (total 5mm), mostly falling on Wed morning. Warm (max 23°C on Tue afternoon, min 11°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. 3 hours ago	17° C	Dry	Calm (0 kph at 18).
Snoqualmie Pass 30 km ESE 824m alt. 2 hours ago	16° C	-	Calm (0 kph at 103).
Renton 30 km WSW 160m alt. 1 hour ago	14° C	Dry	Calm (5 kph at 207).
Grotto wx 35 km NE 321m alt. 3 hours ago	14° C	Dry	Calm (3 kph at 260).
Renton Airport 36 km WSW 218m alt. 3 hours ago	16° C	Dry and cloudy.	Light winds from the N (11 kph at 1).	16 km Low: overcast
Auburn 39 km SW 119m alt. 1 hour ago	29° C	Dry	Calm (0 kph at 83).
Stampede Pass Airport 40 km SE 628m alt. 2 hours ago	9° C	Dry and partly cloudy.	Wind obs. (6 kph from 1 degs) was rejected.	16 km Low: scattered
SHIP3647 43 km W 3m alt. 3 hours ago	16° C
SHIP1898 43 km W 15m alt. 2 hours ago				- km
SHIP2322 43 km W 3m alt. 4 hours ago	15° C

* 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.