– Lat/Long: 47.51° N 121.74° W

Mount Si
Weather Forecast, United States
Issued: 10 pm Tue 30 Jun Local Time
Updates in:
hr min s
Update imminent

Issued: 10 pm Tue 30 Jun Local Time

Updates in:

hr min s

Update imminent

2 Mount Si Elevations: 2 Forecast Elevations:

	Days 1–4 Weather Summary Mostly dry. Very mild (max 19°C on Fri afternoon, min 8°C on Wed night). Wind will be generally light.										Days 5–7 Weather Summary Mostly dry. Warm (max 24°C on Mon afternoon, min 9°C on Sat night). Wind will be generally light.
		Wednesday 1			Thursday 2			Friday 3			Saturday 4			Sunday 5			Monday 6
	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	rain shwrs	some clouds	rain shwrs	some clouds	some clouds	cloudy	some clouds	some clouds	rain shwrs	rain shwrs	rain shwrs	clear	clear	clear	clear	clear	clear	clear	clear
km/h	W	WNW	WNW	WNW	WNW	NW	S	W	W	WSW	WSW	W	ENE	NW	NW	ESE	WSW	W	SSW
See all weather maps
cm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
mm	0.2	—	0.1	—	—	—	—	—	0.1	0.5	0.2	—	—	—	—	—	—	—	—
max °C	11	13	14	14	14	17	16	16	19	16	13	19	15	16	21	18	21	24	20
min °C	9	10	14	8	11	17	10	13	17	12	11	17	9	12	19	14	18	23	11
chill °C	9	10	14	8	11	17	10	13	17	12	10	17	9	12	19	14	18	23	11

Freezing level m	3100	3050	3200	3350	3300	3200	3150	3450	3550	3400	3300	3550	3850	3800	4000	4200	4100	4200	4000
Cloud base (m)	750	900	1500	1650	600	1650	3000	650	950	600	600	1650				9500	8750		9500

	—	5:13	—	—	5:13	—	—	5:13	—	—	5:15	—	—	5:16	—	—	5:16	—	—
	—	—	—	9:07	—	—	9:07	—	—	9:07	—	—	9:06	—	—	9:06	—	—	9:06

Mount Si Weather (Days 0-3):

The weather forecast for Mount Si is: Mostly dry. Very mild (max 19°C on Fri afternoon, min 8°C on Wed night). Wind will be generally light.

Mount Si Weather (Days 3-6):

Mostly dry. Warm (max 24°C on Mon afternoon, min 9°C on Sat 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 86).
Snoqualmie Pass 30 km ESE 824m alt. 1 hour ago	8° C	-	Calm (0 kph at 186).
Renton 30 km WSW 160m alt. 2 hours ago	11° C	Dry	Calm (2 kph at 215).
Grotto wx 35 km NE 321m alt. 2 hours ago	11° C	Dry	Calm (5 kph at 260).
Renton Airport 36 km WSW 218m alt. 2 hours ago	13° C	Dry and cloudy.	Light winds from the S (13 kph at 170).	16 km Low: overcast
Grotto wx 39 km NE 1101m alt. 1 hour ago	6° C	Dry	Calm (0 kph at 47).
Auburn 39 km SW 119m alt. 1 hour ago	17° C	Dry	Calm (0 kph at 196).
Stampede Pass Airport 40 km SE 628m alt. 2 hours ago	4° C	Fog -.	Light winds from the S (7 kph at 181).	0 km
Woodinville 43 km WNW 137.2m alt. 53 minutes ago	8° C	Dry	Wind obs. (8 kph from 316 degs) was rejected.
Seattl / oeing Airport 44 km WSW 218m alt. 2 hours ago	13° C	Dry and cloudy.	Light winds from the S (13 kph at 170).	16 km Low: broken Mid: overcast

* 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.