– Lat/Long: 47.51° N 121.74° W

Mount Si
Weather Forecast, United States
Issued: 4 pm Sat 27 Jun Local Time
Updates in:
hr min s
Update imminent

Issued: 4 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 Sat afternoon. Very mild (max 15°C on Mon afternoon, min 10°C on Sat night). Wind will be generally light.											Days 5–7 Weather Summary Mostly dry. Very mild (max 16°C on Thu afternoon, min 8°C on Thu night). Wind will be generally light.
	Sat 27		Sunday 28			Monday 29			Tuesday 30			Wednesday 1			Thursday 2
	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	light rain	rain shwrs	light rain	light rain	light rain	cloudy	rain shwrs	some clouds	cloudy	rain shwrs	some clouds	cloudy	rain shwrs	some clouds	cloudy	rain shwrs	rain shwrs
km/h	NW	WNW	W	WNW	WNW	W	WNW	WNW	W	W	W	SW	WSW	WNW	W	WNW	NE
See all weather maps
cm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
mm	1.6	1.5	0.2	0.3	0.2	—	0.1	—	—	0.2	—	—	0.2	—	—	0.2	0.1
max °C	13	12	10	13	12	11	15	15	11	15	15	10	14	13	12	16	14
min °C	12	10	10	11	10	10	13	11	10	13	10	10	11	9	10	13	8
chill °C	12	10	10	11	10	10	13	11	10	13	10	9	10	9	10	13	8

Freezing level m	2200	2550	2950	3200	3650	3650	3700	3600	3350	3300	3250	2650	2800	3150	2650	2800	2850
Cloud base (m)	1750	1600	400	500	600	450	600	850	550	800	1700	450	700	1450	600	900	1750

	—	—	5:11	—	—	5:11	—	—	5:11	—	—	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 Sat afternoon. Very mild (max 15°C on Mon afternoon, min 10°C on Sat night). Wind will be generally light.

Mount Si Weather (Days 3-6):

Mostly dry. Very mild (max 16°C on Thu afternoon, min 8°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. 2 hours ago	20° C	Dry	Calm (0 kph at 307).
Snoqualmie Pass 30 km ESE 824m alt. 1 hour ago	13° C	-	Calm (0 kph at 280).
Renton 30 km WSW 160m alt. 1 hour ago	18° C	Dry	Calm (3 kph at 124).
Grotto wx 35 km NE 321m alt. 56 minutes ago	15° C	Dry	Light winds from the W (6 kph at 260).
Renton Airport 36 km WSW 218m alt. 3 hours ago	20° C	Light rain .	Light winds from the N (11 kph at 350).	16 km Low: scattered
Grotto wx 39 km NE 1101m alt. 2 hours ago	10° C	Dry	Calm (2 kph at 40).
Auburn 39 km SW 119m alt. 48 minutes ago		-	Calm (3 kph at 255).
Stampede Pass Airport 40 km SE 628m alt. 2 hours ago	8° C	Dry and partly cloudy.	Calm (0 kph at 0).	16 km Low: few Mid: scattered High: broken
SHIP1921 43 km W 15m alt. 3 hours ago				- km
SHIP2283 43 km W 15m alt. 3 hours ago				- 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.