– Lat/Long: 47.51° N 121.74° W

Mount Si
Weather Forecast, United States
Issued: 4 pm Sun 12 Jul Local Time
Updates in:
hr min s
Update imminent

Issued: 4 pm Sun 12 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 Tue afternoon, min 11°C on Sun night). Wind will be generally light.											Days 5–7 Weather Summary Light rain (total 5mm), mostly falling on Thu afternoon. Warm (max 24°C on Wed afternoon, min 11°C on Thu night). Wind will be generally light.
	Sun 12		Monday 13			Tuesday 14			Wednesday 15			Thursday 16			Friday 17
	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	clear	clear	clear	clear	clear	clear	clear	some clouds	clear	rain shwrs	rain shwrs	rain shwrs	rain shwrs	rain shwrs	clear	clear	clear
km/h	WNW	E	WNW	NW	ESE	WNW	NW	E	NW	NNW	SSE	W	SW	SW	W	W	ESE
See all weather maps
cm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
mm	—	—	—	—	—	—	—	—	—	0.1	0.2	0.1	4	0.8	—	—	—
max °C	19	16	19	23	19	20	24	21	22	24	21	18	19	17	17	21	19
min °C	18	11	15	22	14	17	23	16	18	24	15	15	18	11	13	20	12
chill °C	18	11	15	22	14	17	23	16	18	24	15	15	18	11	13	20	12

Freezing level m	3600	3750	3800	4000	4050	4200	4350	4250	4200	4200	4200	4150	4200	3900	3650	3950	4150
Cloud base (m)								7200		6350	5650		800	1500

	—	—	5:22	—	—	5:22	—	—	5:24	—	—	5:24	—	—	5:26	—	—
	—	9:01	—	—	9:00	—	—	9:00	—	—	9:00	—	—	8:59	—	—	8:58

Mount Si Weather (Days 0-3):

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

Mount Si Weather (Days 3-6):

Light rain (total 5mm), mostly falling on Thu afternoon. Warm (max 24°C on Wed 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	14° C	Dry	Calm (0 kph at 324).
Snoqualmie Pass 30 km ESE 824m alt. 1 hour ago	13° C	-	Calm (0 kph at 335).
Renton 30 km WSW 160m alt. 2 hours ago	18° C	Dry	Calm (2 kph at 349).
Grotto wx 35 km NE 321m alt. 41 minutes ago	16° C	Dry	Calm (5 kph at 227).
Renton Airport 36 km WSW 218m alt. 3 hours ago	20° C	Clear	Moderate winds from the NNW (22 kph at 340).	16 km
Grotto wx 39 km NE 1101m alt. 50 minutes ago	8° C	Dry	Calm (0 kph at 5).
Auburn 39 km SW 119m alt. 2 hours ago		-	Calm (0 kph at 205).
Stampede Pass Airport 40 km SE 628m alt. 3 hours ago	13° C	Clear	Wind obs. (6 kph from 1 degs) was rejected.	16 km
Woodinville 43 km WNW 137.2m alt. 1 hour ago	17° C	Dry	Light winds from the NW (11 kph at 326).
Seattl / oeing Airport 44 km WSW 218m alt. 3 hours ago	19° C	Clear	Light winds from the NNW (9 kph at 330).	16 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.