– Lat/Long: 47.51° N 121.74° W

Mount Si
Weather Forecast, United States
Issued: 4 am Sun 02 Aug Local Time
Updates in:
hr min s
Update imminent

Issued: 4 am Sun 02 Aug Local Time

Updates in:

hr min s

Update imminent

2 Mount Si Elevations: 2 Forecast Elevations:

	Days 1–3 Weather Summary Some drizzle, heaviest during Sun morning. Warm (max 27°C on Tue afternoon, min 9°C on Sun night). Wind will be generally light.									Days 4–6 Weather Summary Mostly dry. Warm (max 30°C on Wed afternoon, min 13°C on Fri night). Wind will be generally light.
	Sunday 2			Monday 3			Tuesday 4			Wednesday 5			Thursday 6			Friday 7
	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	rain shwrs	rain shwrs	clear	clear	clear	clear	clear	clear	clear	clear	clear	clear	clear	clear	clear	clear	clear	clear
Cloud base (m)	750	1600												8250	7300
km/h	W	NNW	ENE	NW	NW	ESE	NW	NW	E	WNW	NW	E	WNW	WNW	S	WSW	W	NNE
See all weather maps
cm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
mm	0.7	0.6	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
max °C	13	16	14	18	22	19	24	27	22	27	30	25	26	30	26	21	25	22
min °C	11	16	9	14	21	16	19	26	19	22	29	20	23	29	16	18	23	13
chill °C	11	16	9	14	21	16	19	26	19	22	29	20	23	29	16	18	23	13

Freezing level m	2600	2550	3300	3600	3900	3950	4000	4300	4500	4600	4850	4850	4800	4900	4750	4600	4400	4500

	5:45	—	—	5:46	—	—	5:48	—	—	5:48	—	—	5:50	—	—	5:52	—	—
	—	—	8:39	—	—	8:37	—	—	8:37	—	—	8:35	—	—	8:34	—	—	8:31

Mount Si Weather (Days 0-3):

The weather forecast for Mount Si is: Some drizzle, heaviest during Sun morning. Warm (max 27°C on Tue afternoon, min 9°C on Sun night). Wind will be generally light.

Mount Si Weather (Days 3-6):

Mostly dry. Warm (max 30°C on Wed afternoon, min 13°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 30 km WSW 160m alt. 1 hour ago	14° C	Dry	Calm (0 kph at 131).
Black Diamond 32 km SSW 192m alt. 1 hour ago		-	Calm (0 kph at 0).
Renton Airport 36 km WSW 218m alt. 2 hours ago	15° C	Dry and cloudy.	Light winds from the ESE (6 kph at 120).	16 km Low: overcast
Auburn 39 km SW 119m alt. 1 hour ago		-	Calm (0 kph at 266).
Stampede Pass Airport 40 km SE 628m alt. 1 hour ago	6° C	Fog -.	Calm (0 kph at 0).	0 km
Seattl / oeing Airport 44 km WSW 218m alt. 2 hours ago	15° C	Dry and cloudy.	Light winds from the S (13 kph at 170).	16 km Low: overcast
Seattle Tacoma International Airport 44 km WSW 218m alt. 2 hours ago	14° C	Dry and partly cloudy.	Light winds from the S (9 kph at 180).	16 km Low: broken
BUOY-EBSW1 46 km W 3m alt. 52 minutes ago
Snohomish 49 km NW 196m alt. 1 hour ago	11° C	Dry	Calm (0 kph at 111).
Seattle 49 km WSW 100m alt. 1 hour ago		-	Wind obs. (27 kph from 308 degs) was rejected.

* 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.