– Lat/Long: 47.51° N 121.74° W

Mount Si Weather Forecast

Cascade Range · United States

Issued: 9 am Mon 09 Nov Local Time

Updates in:

hr min s

Update imminent

Issued: 9 am Mon 09 Nov Local Time

Updates in:

hr min s

Update imminent

2 Mount Si Elevations: 2 Forecast Elevations:

	Days 1–3 Weather Summary Heavy rain (total 24mm), heaviest during Tue afternoon. Very mild (max 16°C on Wed morning, min 8°C on Mon afternoon). Wind will be generally light.									Days 4–6 Weather Summary Heavy rain (total 26mm), heaviest during Fri night. Very mild (max 15°C on Thu morning, min 6°C on Fri night). Wind will be generally light.
	Monday 9			Tuesday 10			Wednesday 11			Thursday 12			Friday 13			Saturday 14
	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	cloudy	mod. rain	light rain	light rain	heavy rain	rain shwrs	some clouds	cloudy	some clouds	some clouds	cloudy	cloudy	cloudy	cloudy	rain shwrs	rain shwrs	light rain	mod. rain
Cloud base (m)	2550	1900	800	700	450	3050	2100	6200	5650	6300	6300		5950	2500	650	450	600	450
km/h	SE	SE	SSW	S	SSE	SSE	S	SSE	S	SSE	SE	SE	SE	SE	SE	SSW	S	ESE
See all weather maps
cm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
mm	—	6	4	4	10	0.1	—	—	—	—	—	—	—	—	13	1.1	3	9
max °C	12	8	8	10	10	12	16	15	12	15	14	13	14	12	9	8	7	8
min °C	10	8	8	9	10	10	14	13	12	14	13	11	14	8	6	8	7	7
chill °C	9	5	5	7	8	8	13	12	11	14	12	9	12	8	3	6	5	5

Freezing level m	2200	2300	2000	2550	2700	2950	3050	3000	2850	2800	2850	3150	2800	2250	2000	1550	1600	1950

	7:03	—	—	7:03	—	—	7:05	—	—	7:07	—	—	7:09	—	—	7:09	—	—
	—	4:37	—	—	4:36	—	—	4:35	—	—	4:34	—	—	4:31	—	—	4:30	—

Mount Si Weather (Days 0-3):

The weather forecast for Mount Si is: Heavy rain (total 24mm), heaviest during Tue afternoon. Very mild (max 16°C on Wed morning, min 8°C on Mon afternoon). Wind will be generally light.

Mount Si Weather (Days 3-6):

Heavy rain (total 26mm), heaviest during Fri night. Very mild (max 15°C on Thu morning, min 6°C on Fri 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
Renton Airport 36 km WSW 218m alt. 2 hours ago	8°C	Clear	Light winds from the SSE (7 kph at 160).	16 km
Auburn 39 km SW 119m alt. 1 hour ago	13°C	Dry	Calm (0 kph at 295).
Stampede Pass Airport 40 km SE 628m alt. 2 hours ago	1°C	Mist -.	Light winds from the N (6 kph at 1).	5 km Low: few Mid: broken
SHIP694 43 km W -m alt. 2 hours ago	10°C	-	Calm (2 kph at 100).
Monroe 44 km NW 80m alt. 1 hour ago	14°C	Dry	Calm (0 kph at 112).
SHIP2983 43 km W 15m alt. 2 hours ago			Calm (2 kph at 90).	- km
SHIP2786 43 km W 15m alt. 2 hours ago			Calm (2 kph at 100).	- km
SHIP7619 43 km W 15m alt. 3 hours ago			Calm (2 kph at 100).	- km
SHIP3330 43 km W 15m alt. 3 hours ago			Calm (2 kph at 90).	- km
SHIP861 43 km W -m alt. 3 hours ago	9°C	-	Calm (2 kph at 90).

* 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.