– Lat/Long: 47.51° N 121.74° W

Mount Si
Weather Forecast, United States
Issued: 4 pm Sat 04 Jul Local Time
Updates in:
hr min s
Update imminent

Issued: 4 pm Sat 04 Jul Local Time

Updates in:

hr min s

Update imminent

2 Mount Si Elevations: 2 Forecast Elevations:

	Days 1–4 Weather Summary Mostly dry. Warm (max 24°C on Mon afternoon, min 10°C on Sat night). Wind will be generally light.											Days 5–7 Weather Summary Light rain (total 3mm), mostly falling on Wed morning. Warm (max 23°C on Tue afternoon, min 11°C on Thu night). Wind will be generally light.
	Sat 4		Sunday 5			Monday 6			Tuesday 7			Wednesday 8			Thursday 9
	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	clear	clear	clear	clear	clear	clear	clear	clear	clear	clear	rain shwrs	light rain	light rain	rain shwrs	light rain	clear	clear
km/h	W	NNE	NW	NW	E	WNW	WNW	SE	WSW	W	SW	WSW	WSW	NW	NW	NW	NE
See all weather maps
cm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
mm	—	—	—	—	—	—	—	—	—	—	0.1	1.2	0.8	1.1	0.2	—	—
max °C	19	17	17	21	18	21	24	21	20	23	20	12	14	14	13	20	17
min °C	18	10	13	20	14	17	23	14	17	23	12	12	13	12	12	18	11
chill °C	18	10	13	20	14	17	23	14	17	23	11	11	13	12	12	18	11

Freezing level m	3700	3850	3800	4050	4100	4050	4200	4200	4200	4150	3300	2750	3600	4100	3900	3900	4050
Cloud base (m)	750	1600			9400		9100		8500	8650		550	450	750	450

	—	—	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 10°C on Sat night). Wind will be generally light.

Mount Si Weather (Days 3-6):

Light rain (total 3mm), mostly falling on Wed morning. Warm (max 23°C on Tue afternoon, min 11°C on Thu 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. 1 hour ago	20° C	Dry	Calm (0 kph at 268).
Snoqualmie Pass 30 km ESE 824m alt. 2 hours ago	19° C	-	Calm (0 kph at 210).
Renton 30 km WSW 160m alt. 2 hours ago	23° C	Dry	Calm (2 kph at 350).
Grotto wx 35 km NE 321m alt. 1 hour ago	21° C	Dry	Light winds from the WSW (11 kph at 247).
Renton Airport 36 km WSW 218m alt. 2 hours ago	21° C	Clear	Light winds from the N (13 kph at 350).	16 km
Grotto wx 39 km NE 1101m alt. 1 hour ago	13° C	Dry	Calm (0 kph at 215).
Auburn 39 km SW 119m alt. 1 hour ago	32° C	Dry	Calm (0 kph at 278).
SHIP8008 43 km W 3m alt. 2 hours ago
SHIP6862 43 km W 15m alt. 52 minutes ago				- km
Woodinville 43 km WNW 137.2m alt. 1 hour ago	22° C	Dry	Wind obs. (14 kph from 295 degs) was rejected.

* 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.