– Lat/Long: 47.51° N 121.74° W

Mount Si
Weather Forecast, United States
Issued: 10 pm Sat 27 Jun Local Time
Updates in:
hr min s
Update imminent

Issued: 10 pm Sat 27 Jun Local Time

Updates in:

hr min s

Update imminent

2 Mount Si Elevations: 2 Forecast Elevations:

	Days 1–4 Weather Summary Light rain (total 4mm), mostly falling on Sun afternoon. Very mild (max 14°C on Sun afternoon, min 9°C on Sat night). Wind will be generally light.										Days 5–7 Weather Summary Mostly dry. Very mild (max 17°C on Fri afternoon, min 9°C on Wed night). Wind will be generally light.
		Sunday 28			Monday 29			Tuesday 30			Wednesday 1			Thursday 2			Friday 3
	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	rain shwrs	light rain	rain shwrs	light rain	light rain	light rain	light rain	some clouds	rain shwrs	rain shwrs	some clouds	rain shwrs	rain shwrs	rain shwrs	rain shwrs	some clouds	clear	rain shwrs	rain shwrs
km/h	WNW	W	WNW	WNW	WSW	WNW	W	WSW	W	W	W	W	W	W	WNW	WSW	W	W	SSW
See all weather maps
cm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
mm	1.4	0.4	1.2	0.5	0.1	0.1	0.2	—	0.2	0.1	—	0.2	0.1	0.3	0.2	—	—	0.1	0.2
max °C	12	10	14	13	10	14	14	11	14	14	13	14	14	11	15	15	14	17	15
min °C	9	10	12	10	10	11	10	10	13	10	10	14	9	10	14	10	11	16	10
chill °C	9	10	12	10	10	11	10	10	13	10	10	14	9	10	14	10	11	16	10

Freezing level m	2500	2750	3100	3600	3600	3500	3300	3200	3100	3100	3100	3150	3100	3000	3000	3050	3100	3400	3450
Cloud base (m)	1650	450	550	650	550	500	750	550	900	1700	750	900	1550	400	850	2000	1950	1650	1800

	—	5:11	—	—	5:11	—	—	5:11	—	—	5:13	—	—	5:13	—	—	5:13	—	—
	—	—	—	9:07	—	—	9:07	—	—	9:07	—	—	9:07	—	—	9:07	—	—	9:07

Mount Si Weather (Days 0-3):

The weather forecast for Mount Si is: Light rain (total 4mm), mostly falling on Sun afternoon. Very mild (max 14°C on Sun afternoon, min 9°C on Sat night). Wind will be generally light.

Mount Si Weather (Days 3-6):

Mostly dry. Very mild (max 17°C on Fri afternoon, min 9°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. 1 hour ago	12° C	Dry	Calm (0 kph at 321).
Snoqualmie Pass 30 km ESE 824m alt. 34 minutes ago	8° C	-	Calm (3 kph at 203).
Renton 30 km WSW 160m alt. 2 hours ago	14° C	Dry	Calm (0 kph at 78).
Grotto wx 35 km NE 321m alt. 1 hour ago	11° C	Dry	Calm (0 kph at 283).
Renton Airport 36 km WSW 218m alt. 2 hours ago	16° C	Clear	Light winds from the S (9 kph at 190).	16 km
Grotto wx 39 km NE 1101m alt. 1 hour ago	6° C	Dry	Calm (0 kph at 307).
Auburn 39 km SW 119m alt. 33 minutes ago	21° C	Dry	Calm (0 kph at 267).
Stampede Pass Airport 40 km SE 628m alt. 1 hour ago	6° C	Fog -.	Wind obs. (6 kph from 1 degs) was rejected.	0 km Low: broken Mid: broken High: overcast
Seattl / oeing Airport 44 km WSW 218m alt. 2 hours ago	16° C	Clear	Light winds from the N (6 kph at 1).	16 km
Seattle Tacoma International Airport 44 km WSW 218m alt. 2 hours ago	14° C	Dry and partly cloudy.	Light winds from the SSW (15 kph at 200).	16 km Low: few Mid: scattered

* 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.