– Lat/Long: 47.51° N 121.74° W

Mount Si
Weather Forecast, United States
Issued: 10 pm Wed 22 Apr Local Time
Updates in:
hr min s
Update imminent

Issued: 10 pm Wed 22 Apr Local Time

Updates in:

hr min s

Update imminent

2 Mount Si Elevations: 2 Forecast Elevations:

	Days 1–4 Weather Summary Mostly dry. Freeze-thaw conditions (max 7°C on Sat afternoon, min 0°C on Wed night). Wind will be generally light.										Days 5–7 Weather Summary Light rain (total 6mm), mostly falling on Sun night. Mild temperatures (max 6°C on Sat night, min 2°C on Sun night). Wind will be generally light.
		Thursday 23			Friday 24			Saturday 25			Sunday 26			Monday 27			Tuesday 28
	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	some clouds	some clouds	some clouds	clear	some clouds	some clouds	clear	clear	clear	clear	some clouds	rain shwrs	rain shwrs	rain shwrs	rain shwrs	rain shwrs	cloudy	rain shwrs	rain shwrs
km/h	SW	W	NW	NE	NE	N	ENE	NW	NW	NW	WNW	W	SSW	WSW	WNW	W	WSW	WNW	NNE
See all weather maps
cm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
mm	—	—	—	—	—	—	—	—	—	—	—	2	4	0.1	0.1	0.1	—	0.1	0.1
max °C	1	1	3	3	5	6	5	6	7	6	5	6	5	2	5	5	3	5	5
min °C	0	0	2	2	4	6	5	5	7	5	5	6	2	2	4	3	3	4	4
chill °C	-4	-4	0	0	2	4	2	5	5	5	4	3	0	-1	3	1	1	2	4

Freezing level m	1350	1450	1850	1650	1900	2050	1950	1950	2100	2000	1850	2000	1700	1550	1950	1800	1750	2200	2250
Cloud base (m)	550	600	800	1700		6700			2400	8650	3150	1950	800	900	900	1600	950	1550

	—	6:03	—	—	6:01	—	—	6:00	—	—	5:58	—	—	5:56	—	—	5:54	—	—
	—	—	—	8:07	—	—	8:07	—	—	8:09	—	—	8:10	—	—	8:12	—	—	8:14

Mount Si Weather (Days 0-3):

The weather forecast for Mount Si is: Mostly dry. Freeze-thaw conditions (max 7°C on Sat afternoon, min 0°C on Wed night). Wind will be generally light.

Mount Si Weather (Days 3-6):

Light rain (total 6mm), mostly falling on Sun night. Mild temperatures (max 6°C on Sat night, min 2°C on Sun 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	10° C	Dry	Calm (0 kph at 9).
Snoqualmie Pass 30 km ESE 824m alt. 1 hour ago	4° C	-	Calm (0 kph at 170).
Renton 30 km WSW 160m alt. 1 hour ago	8° C	Dry	Calm (2 kph at 228).
Grotto wx 35 km NE 321m alt. 1 hour ago	7° C	Dry	Calm (5 kph at 278).
Renton Airport 36 km WSW 218m alt. 3 hours ago	10° C	Dry and partly cloudy.	Light winds from the SSE (9 kph at 150).	16 km Low: scattered
Grotto wx 39 km NE 1101m alt. 1 hour ago	2° C	-	Calm (2 kph at 198).
Auburn 39 km SW 119m alt. 54 minutes ago	6° C	Dry	Calm (0 kph at 189).
Stampede Pass Airport 40 km SE 628m alt. 2 hours ago	1° C	Fog -.	Wind obs. (9 kph from 1 degs) was rejected.	0 km
Woodinville 43 km WNW 137.2m alt. 49 minutes ago	6° C	Dry	Wind obs. (14 kph from 316 degs) was rejected.
Seattl / oeing Airport 44 km WSW 218m alt. 3 hours ago	9° C	Dry and partly cloudy.	Light winds from the SSE (15 kph at 150).	16 km Low: 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.