– Lat/Long: 47.51° N 121.74° W

Mount Si
Weather Forecast, United States
Issued: 4 pm Wed 01 May Local Time
Updates in:
hr min s
Update imminent

Issued: 4 pm Wed 01 May Local Time

Updates in:

hr min s

Update imminent

2 Mount Si Elevations: 2 Forecast Elevations:

	Days 1–4 Weather Summary Light rain (total 2mm), mostly falling on Fri night. Very mild (max 16°C on Fri afternoon, min 3°C on Wed night). Wind will be generally light.											Days 5–7 Weather Summary Heavy rain (total 35mm), heaviest during Sun night. Very mild (max 12°C on Sat afternoon, min 3°C on Mon night). Wind will be generally light.
	Wed 1		Thursday 2			Friday 3			Saturday 4			Sunday 5			Monday 6
	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	rain shwrs	rain shwrs	clear	rain shwrs	clear	cloudy	cloudy	light rain	light rain	light rain	light rain	light rain	mod. rain	mod. rain	light rain	light rain	heavy rain
km/h	W	ENE	NW	NW	SE	SE	SE	E	E	WNW	WNW	WSW	SW	SW	WSW	SW	WSW
Wave Height Map See all maps
cm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
mm	0.2	0.1	—	0.2	—	—	—	1.5	0.2	0.8	0.2	0.4	7	9	1.9	4	10
max°C	9	7	10	13	10	15	16	10	11	12	7	7	7	7	6	6	5
min°C	9	3	7	12	7	10	14	9	10	10	6	7	7	5	5	5	3
chill°C	8	3	7	11	7	9	13	7	8	10	5	6	5	1	2	2	0

Freezing level (m)	1500	1350	1700	2000	2050	2250	2200	2200	2250	2200	2250	1800	1750	1200	1300	1300	1000
Cloud base (m)	1750	950		2300		6100	2300	350	800	600	400	400	400	400	400	400	400

	—	—	5:47	—	—	5:45	—	—	5:43	—	—	5:41	—	—	5:41	—	—
	—	8:19	—	—	8:21	—	—	8:22	—	—	8:22	—	—	8:24	—	—	8:25

Mount Si Weather (Days 0-3):

The weather forecast for Mount Si is: Light rain (total 2mm), mostly falling on Fri night. Very mild (max 16°C on Fri afternoon, min 3°C on Wed night). Wind will be generally light.

Mount Si Weather (Days 3-6):

Heavy rain (total 35mm), heaviest during Sun night. Very mild (max 12°C on Sat afternoon, min 3°C on Mon 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 5 closest weather stations

Weather Station	Temp.	Weather	Wind	Cloud Visibility Cloud / Visibility
Snoqualmie Pass 30 km ESE 824m alt. 29 minutes ago	8° C	-	Calm (0 kph at 94).
Renton Airport 36 km WSW 218m alt. 2 hours ago	15° C	Clear	Light winds from the NW (6 kph at 310).	16 km
Auburn 39 km SW 119m alt. 43 minutes ago	23° C	Dry	Calm (0 kph at 333).
Grotto wx 39 km NE 1101m alt. 36 minutes ago	2° C	-	Calm (0 kph at 346).
Stampede Pass Airport 40 km SE 628m alt. 2 hours ago	3° C	Dry and partly cloudy.	Light winds from the N (7 kph at 1).	16 km Low: 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.