– Lat/Long: 47.51° N 121.74° W

Mount Si
Weather Forecast, United States
Issued: 9 am Fri 23 Jan Local Time
Updates in:
hr min s
Update imminent

Issued: 9 am Fri 23 Jan Local Time

Updates in:

hr min s

Update imminent

2 Mount Si Elevations: 2 Forecast Elevations:

	Days 1–3 Weather Summary Mostly dry. Mild temperatures (max 8°C on Sun morning, min 1°C on Fri afternoon). Wind will be generally light.									Days 4–6 Weather Summary Light rain (total 9mm), mostly falling on Wed night. Very mild (max 10°C on Tue morning, min 4°C on Mon morning). Wind will be generally light.
	Friday 23			Saturday 24			Sunday 25			Monday 26			Tuesday 27			Wednesday 28
	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	clear	clear	clear	clear	some clouds	some clouds	some clouds	some clouds	cloudy	light rain	light rain	rain shwrs	clear	some clouds	some clouds	light rain	light rain	mod. rain
km/h	ESE	ESE	E	E	N	ENE	SE	SSE	SSE	SSW	S	SSE	SE	ESE	ESE	SSE	S	SSW
See all weather maps
cm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
mm	—	—	—	—	—	—	—	—	—	0.4	0.5	0.1	—	—	—	0.4	2	6
max °C	7	5	1	7	6	3	8	6	3	5	4	4	10	9	6	7	5	6
min °C	4	1	1	6	3	2	5	3	3	4	4	4	7	6	4	6	5	5
chill °C	3	-1	-1	6	3	2	3	1	1	3	4	4	6	4	2	6	5	4

Freezing level m	1500	1450	1550	2050	2100	2000	2000	1900	1650	1250	1250	1450	2000	2300	2350	1500	1450	1650
Cloud base (m)						5800	8700	4750	4750	2550	650	850			5700	1700	650	450

	7:43	—	—	7:41	—	—	7:41	—	—	7:39	—	—	7:39	—	—	7:37	—	—
	—	4:53	—	—	4:55	—	—	4:57	—	—	4:59	—	—	5:00	—	—	5:01	—

Mount Si Weather (Days 0-3):

The weather forecast for Mount Si is: Mostly dry. Mild temperatures (max 8°C on Sun morning, min 1°C on Fri afternoon). Wind will be generally light.

Mount Si Weather (Days 3-6):

Light rain (total 9mm), mostly falling on Wed night. Very mild (max 10°C on Tue morning, min 4°C on Mon morning). 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
Harman Heights wx 6 km SSW 251m alt. 3 hours ago	3° C	Dry	Calm (0 kph at 94).
Black Diamond 32 km SSW 192m alt. 1 hour ago	16° C	Dry	Calm (3 kph at 0).
Renton Airport 36 km WSW 218m alt. 3 hours ago	3° C	Clear	Wind obs. (9 kph from 330 degs) was rejected.	16 km
Auburn 39 km SW 119m alt. 1 hour ago	12° C	Dry	Calm (0 kph at 272).
Stampede Pass Airport 40 km SE 628m alt. 3 hours ago	-7° C	Dry and cloudy.	Wind obs. (7 kph from 1 degs) was rejected.	16 km Low: broken Mid: overcast
SHIP8088 43 km W 3m alt. 4 hours ago
SHIP6536 43 km W 15m alt. 4 hours ago				- km
SHIP4183 43 km W 15m alt. 3 hours ago				- km
SHIP3493 43 km W 15m alt. 2 hours ago				- km
SHIP8558 43 km W 15m alt. 4 hours ago				- km

* 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.