– Lat/Long: 47.51° N 121.74° W

Mount Si
Weather Forecast, United States
Issued: 3 pm Fri 09 Jan Local Time
Updates in:
hr min s
Update imminent

Issued: 3 pm Fri 09 Jan Local Time

Updates in:

hr min s

Update imminent

2 Mount Si Elevations: 2 Forecast Elevations:

	Days 1–4 Weather Summary Heavy rain (total 33mm), heaviest during Sat night. Very mild (max 10°C on Sat morning, min 4°C on Fri night). Wind will be generally light.											Days 5–7 Weather Summary Light rain (total 4mm), mostly falling on Wed afternoon. Very mild (max 14°C on Tue morning, min 6°C on Wed night). Wind will be generally light.
	Fri 9		Saturday 10			Sunday 11			Monday 12			Tuesday 13			Wednesday 14
	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	some clouds	some clouds	cloudy	light rain	heavy rain	light rain	light rain	mod. rain	light rain	rain shwrs	some clouds	clear	clear	clear	clear	light rain	rain shwrs
km/h	S	SSE	S	SSW	SSE	S	S	SSW	WSW	WSW	S	SSE	SSE	SE	SSW	WSW	NNW
See all weather maps
cm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
mm	—	—	—	4	12	4	1.9	8	4	0.5	—	—	—	—	—	2	0.5
max °C	6	5	10	7	7	8	8	9	10	10	11	14	13	10	13	9	8
min °C	5	4	7	5	5	7	8	8	9	10	10	11	10	8	11	8	6
chill °C	4	2	5	3	3	5	6	6	8	9	10	11	10	7	10	8	6

Freezing level m	2050	2300	2250	2000	1950	2150	2500	2450	2400	2700	3000	3300	3600	3450	3150	2000	2050
Cloud base (m)	4450	4400	3550	3350	650	450	450	800	500	500	800	1000	9000	9100		850	650

	—	—	7:52	—	—	7:52	—	—	7:50	—	—	7:50	—	—	7:50	—	—
	4:35	—	—	4:36	—	—	4:37	—	—	4:38	—	—	4:39	—	—	4:42	—

Mount Si Weather (Days 0-3):

The weather forecast for Mount Si is: Heavy rain (total 33mm), heaviest during Sat night. Very mild (max 10°C on Sat morning, min 4°C on Fri night). Wind will be generally light.

Mount Si Weather (Days 3-6):

Light rain (total 4mm), mostly falling on Wed afternoon. Very mild (max 14°C on Tue morning, min 6°C on Wed 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
Harman Heights wx 6 km SSW 251m alt. 1 hour ago	6° C	Dry	Calm (0 kph at 353).
Black Diamond 32 km SSW 192m alt. 58 minutes ago	7° C	Dry	Calm (2 kph at 282).
Renton Airport 36 km WSW 218m alt. 2 hours ago	10° C	Clear	Light winds from the N (6 kph at 350).	16 km
Auburn 39 km SW 119m alt. 1 hour ago	1° C	-	Calm (0 kph at 128).
Stampede Pass Airport 40 km SE 628m alt. 2 hours ago	-1° C	-	Light winds from the E (6 kph at 80).	16 km
Seattl / oeing Airport 44 km WSW 218m alt. 2 hours ago	11° C	Dry and partly cloudy.	Light winds from the W (6 kph at 270).	16 km Low: broken
Seattle Tacoma International Airport 44 km WSW 218m alt. 2 hours ago	9° C	Dry and partly cloudy.	Light winds from the W (6 kph at 270).	16 km Low: few Mid: scattered High: broken
Snohomish 49 km NW 196m alt. 46 minutes ago	7° C	Dry	Calm (3 kph at 9).
Seattle 49 km WSW 100m alt. 1 hour ago		-
SHIP4695 50 km WSW 15m alt. 2 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.