– Lat/Long: 47.51° N 121.74° W

Mount Si
Weather Forecast, United States
Issued: 4 am Fri 17 Jul Local Time
Updates in:
hr min s
Update imminent

Issued: 4 am Fri 17 Jul Local Time

Updates in:

hr min s

Update imminent

2 Mount Si Elevations: 2 Forecast Elevations:

	Days 1–3 Weather Summary Mostly dry. Warm (max 24°C on Sun afternoon, min 11°C on Fri night). Wind will be generally light.									Days 4–6 Weather Summary Mostly dry. Warm (max 31°C on Wed afternoon, min 17°C on Wed night). Wind will be generally light.
	Friday 17			Saturday 18			Sunday 19			Monday 20			Tuesday 21			Wednesday 22
	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	rain shwrs	clear	clear	clear	clear	clear	clear	clear	clear	some clouds	cloudy	some clouds	some clouds	some clouds	clear	some clouds	rain shwrs	rain shwrs
Cloud base (m)	550								9650		6550	2950	5650	4250	6200	6400		6250
km/h	W	W	ESE	WNW	NW	NE	NW	NW	E	SSE	W	E	WNW	WNW	E	NW	SSE	SW
See all weather maps
cm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
mm	0.2	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	0.2	0.6
max °C	16	21	18	17	21	18	19	24	21	24	26	24	28	29	27	29	31	25
min °C	12	20	11	14	20	12	15	22	17	20	26	21	23	27	23	26	28	17
chill °C	12	20	11	14	20	12	15	22	17	20	26	21	23	27	23	26	28	17

Freezing level m	3950	3900	3900	3700	3650	4050	3950	4200	4300	4550	4550	4550	4800	4900	4950	4900	4800	4800

	5:26	—	—	5:26	—	—	5:28	—	—	5:30	—	—	5:31	—	—	5:31	—	—
	—	—	8:58	—	—	8:57	—	—	8:55	—	—	8:54	—	—	8:53	—	—	8:52

Mount Si Weather (Days 0-3):

The weather forecast for Mount Si is: Mostly dry. Warm (max 24°C on Sun afternoon, min 11°C on Fri night). Wind will be generally light.

Mount Si Weather (Days 3-6):

Mostly dry. Warm (max 31°C on Wed afternoon, min 17°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 10 closest weather stations

Weather Station	Temp.	Weather	Wind	Cloud Visibility Cloud / Visibility
Renton 30 km WSW 160m alt. 3 hours ago	14° C	Dry	Calm (0 kph at 232).
Black Diamond 32 km SSW 192m alt. 49 minutes ago		-	Calm (0 kph at 0).
Renton Airport 36 km WSW 218m alt. 3 hours ago	16° C	Dry and cloudy.	Light winds from the SSE (6 kph at 160).	16 km Low: overcast
Auburn 39 km SW 119m alt. 41 minutes ago	21° C	Dry	Calm (0 kph at 191).
Stampede Pass Airport 40 km SE 628m alt. 2 hours ago	9° C	Fog -.	Wind obs. (9 kph from 1 degs) was rejected.	0 km
Seattl / oeing Airport 44 km WSW 218m alt. 3 hours ago	15° C	Dry and partly cloudy.	Light winds from the S (9 kph at 170).	16 km Low: broken
Seattle Tacoma International Airport 44 km WSW 218m alt. 3 hours ago	14° C	Dry and cloudy.	Light winds from the S (11 kph at 180).	16 km Low: overcast
Seattle 49 km WSW 100m alt. 38 minutes ago		-
BUOY-WPOW1 55 km W 3m alt. 1 hour ago	14° C		Moderate winds from the S (24 kph at 170).
BUOY-TCNW1 57 km SW 3m alt. 1 hour ago

* 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.