– Lat/Long: 47.51° N 121.74° W

Mount Si
Weather Forecast, United States
Issued: 9 am Sat 22 Feb Local Time
Updates in:
hr min s
Update imminent

Issued: 9 am Sat 22 Feb Local Time

Updates in:

hr min s

Update imminent

2 Mount Si Elevations: 2 Forecast Elevations:

	Days 1–3 Weather Summary Heavy rain (total 88mm), heaviest during Sat afternoon. Mild temperatures (max 9°C on Sat morning, min 4°C on Sun night). Winds increasing (light winds from the S on Sun night, strong winds from the SSW by Mon night).									Days 4–6 Weather Summary Heavy rain (total 20mm), heaviest during Tue morning. Very mild (max 11°C on Wed morning, min 3°C on Tue night). Winds decreasing (strong winds from the SW on Tue morning, calm by Thu night).
	Saturday 22			Sunday 23			Monday 24			Tuesday 25			Wednesday 26			Thursday 27
	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	light rain	heavy rain	heavy rain	light rain	heavy rain	light rain	light rain	mod. rain	heavy rain	heavy rain	light rain	rain shwrs	clear	some clouds	some clouds	some clouds	some clouds	some clouds
km/h	S	SSE	SW	S	SSW	SW	SE	S	S	SW	WSW	ESE	ESE	ESE	SE	SSE	W	ESE
See all weather maps
cm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
mm	0.8	21	26	2	13	5	0.6	7	13	16	4	0.1	—	—	—	—	—	—
max°C	9	8	7	7	8	6	7	6	5	5	5	4	11	9	6	11	10	8
min°C	8	7	6	7	7	4	7	5	4	5	5	3	8	7	5	10	8	6
chill°C	6	5	5	6	4	3	6	1	-2	-1	1	2	6	5	3	10	8	6

Freezing level (m)	2150	2600	1850	1950	2050	1300	2050	1600	1200	1250	1300	1200	2800	2950	2900	2550	2100	2150
Cloud base (m)	650	500	400	400	400	500	600	700	800	400	450	750	8500	5900				1550

	6:58	—	—	6:58	—	—	6:56	—	—	6:54	—	—	6:52	—	—	6:50	—	—
	—	5:40	—	—	5:43	—	—	5:44	—	—	5:45	—	—	5:46	—	—	5:49	—

Mount Si Weather (Days 0-3):

The weather forecast for Mount Si is: Heavy rain (total 88mm), heaviest during Sat afternoon. Mild temperatures (max 9°C on Sat morning, min 4°C on Sun night). Winds increasing (light winds from the S on Sun night, strong winds from the SSW by Mon night).

Mount Si Weather (Days 3-6):

Heavy rain (total 20mm), heaviest during Tue morning. Very mild (max 11°C on Wed morning, min 3°C on Tue night). Winds decreasing (strong winds from the SW on Tue morning, calm by Thu night).

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
Harman Heights wx 6 km SSW 251m alt. 47 minutes ago	13° C	Dry	Wind obs. (11 kph from 315 degs) was rejected.
Black Diamond 32 km SSW 192m alt. 42 minutes ago	21° C	Dry	Wind obs. (6 kph from 360 degs) was rejected.
Renton Airport 36 km WSW 218m alt. 2 hours ago	11° C	Dry and cloudy.	Light winds from the SSE (7 kph at 160).	16 km Low: overcast
Auburn 39 km SW 119m alt. 49 minutes ago	13° C	Dry	Calm (0 kph at 111).
Stampede Pass Airport 40 km SE 628m alt. 2 hours ago	1° C	Fog -.	Calm (0 kph at 0).	0 km
SHIP3336 43 km W 15m alt. 3 hours ago	9° C		Calm (6 kph at 150).	- km
SHIP7183 43 km W 15m alt. 54 minutes ago	9° C		Calm (6 kph at 110).	- km
SHIP5904 43 km W 15m alt. 3 hours ago	9° C		Calm (0 kph at 100).	- km
SHIP2158 43 km W 15m alt. 2 hours ago	9° C		Calm (6 kph at 120).	- km
SHIP8287 43 km W 3m alt. 3 hours ago	10° C		Calm (0 kph at 100).

* 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.