– Lat/Long: 47.51° N 121.74° W

Mount Si
Weather Forecast, United States
Issued: 4 am Thu 16 Apr Local Time
Updates in:
hr min s
Update imminent

Issued: 4 am Thu 16 Apr Local Time

Updates in:

hr min s

Update imminent

2 Mount Si Elevations: 2 Forecast Elevations:

	Days 1–3 Weather Summary A dusting of new snow. Freeze-thaw conditions (max 10°C on Sat night, min -5°C on Thu morning). Wind will be generally light.									Days 4–6 Weather Summary Mostly dry. Very mild (max 16°C on Tue afternoon, min 9°C on Tue night). Wind will be generally light.
	Thursday 16			Friday 17			Saturday 18			Sunday 19			Monday 20			Tuesday 21
	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	snow shwrs	some clouds	some clouds	some clouds	some clouds	some clouds	some clouds	some clouds	some clouds	some clouds	some clouds	some clouds	some clouds	clear	clear	clear	some clouds	some clouds
km/h	NW	W	SW	E	SSE	SSE	SE	ESE	ESE	ESE	ESE	N	E	W	WNW	NE	NNE	NNW
See all weather maps
cm	1	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
mm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
max °C	-4	-1	-2	-2	1	4	6	8	10	11	13	12	14	14	14	14	16	16
min °C	-5	-3	-3	-3	-1	2	4	7	9	10	12	11	12	14	12	13	15	9
chill °C	-10	-7	-8	-3	-1	1	2	5	8	8	10	11	12	14	12	13	15	7

Freezing level m	750	1150	650	1000	1400	2150	2350	2550	2800	2850	2950	3050	3150	3200	3250	3300	3450	3350
Cloud base (m)	450	600	650	450	650	6250	5050	6400	2500	3400	3700	4650			5700	9400	5800	5300

	6:16	—	—	6:15	—	—	6:13	—	—	6:11	—	—	6:09	—	—	6:07	—	—
	—	7:57	—	—	7:58	—	—	—	8:00	—	—	8:00	—	—	8:02	—	—	8:04

Mount Si Weather (Days 0-3):

The weather forecast for Mount Si is: A dusting of new snow. Freeze-thaw conditions (max 10°C on Sat night, min -5°C on Thu morning). Wind will be generally light.

Mount Si Weather (Days 3-6):

Mostly dry. Very mild (max 16°C on Tue afternoon, min 9°C on Tue night). Wind will be generally light.

This table gives the weather forecast for Mount Si at the specific elevation of 1270 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. 47 minutes ago	3° C	Dry	Calm (0 kph at 126).
Snoqualmie Pass 30 km ESE 824m alt. 44 minutes ago	-1° C	-	Calm (0 kph at 359).
Renton 30 km WSW 160m alt. 2 hours ago	2° C	-	Calm (0 kph at 108).
Grotto wx 35 km NE 321m alt. 1 hour ago	1° C	-	Calm (0 kph at 128).
Renton Airport 36 km WSW 218m alt. 2 hours ago	3° C	Dry and partly cloudy.	Light winds from the ESE (6 kph at 120).	16 km Low: few Mid: scattered High: broken
Grotto wx 39 km NE 1101m alt. 2 hours ago	-4° C	-	Calm (0 kph at 94).
Auburn 39 km SW 119m alt. 52 minutes ago	3° C	Dry	Calm (0 kph at 331).
Stampede Pass Airport 40 km SE 628m alt. 1 hour ago	-4° C	Light snow.	Light winds from the WSW (11 kph at 240).	0 km
Woodinville 43 km WNW 137.2m alt. 2 hours ago	-2° C	-	Calm (3 kph at 283).
Seattl / oeing Airport 44 km WSW 218m alt. 2 hours ago	3° C	Dry and partly cloudy.	Light winds from the SSE (11 kph at 150).	14 km Low: few Mid: broken High: broken

* 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.