– Lat/Long: 47.51° N 121.74° W

Mount Si
Weather Forecast, United States
Issued: 4 am Fri 08 May Local Time
Updates in:
hr min s
Update imminent

Issued: 4 am Fri 08 May Local Time

Updates in:

hr min s

Update imminent

2 Mount Si Elevations: 2 Forecast Elevations:

	Days 1–3 Weather Summary Mostly dry. Very mild (max 17°C on Sat afternoon, min 8°C on Fri night). Wind will be generally light.									Days 4–6 Weather Summary Mostly dry. Warm (max 24°C on Wed afternoon, min 10°C on Mon morning). Wind will be generally light.
	Friday 8			Saturday 9			Sunday 10			Monday 11			Tuesday 12			Wednesday 13
	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	cloudy	some clouds	clear	clear	cloudy	some clouds	some clouds	some clouds	rain shwrs	cloudy	some clouds	clear	clear	some clouds	some clouds	cloudy	some clouds	some clouds
km/h	WSW	W	SE	NW	WNW	SSE	W	WSW	NW	NW	NNW	ESE	NW	NW	SSE	WSW	WSW	SSW
See all weather maps
cm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
mm	—	—	—	—	—	—	—	—	0.4	—	—	—	—	—	—	—	—	—
max °C	11	15	12	14	17	15	14	16	12	13	16	14	20	23	18	22	24	20
min °C	10	14	8	11	17	11	13	15	9	10	16	11	15	22	16	19	23	13
chill °C	9	13	8	11	17	11	13	15	8	10	16	11	15	22	16	19	23	13

Freezing level m	2300	2450	2950	3450	3450	3250	2950	2600	2300	3100	3300	3600	3750	3850	3850	3750	3550	3500
Cloud base (m)		2700	1700	8900	6750	6300	5700	800	700	6200	6150		7200	6500	7750	6700	3050	6950

	5:39	—	—	5:37	—	—	5:35	—	—	5:35	—	—	5:33	—	—	5:31	—	—
	—	—	8:27	—	—	8:29	—	—	8:30	—	—	8:30	—	—	8:32	—	—	8:34

Mount Si Weather (Days 0-3):

The weather forecast for Mount Si is: Mostly dry. Very mild (max 17°C on Sat afternoon, min 8°C on Fri night). Wind will be generally light.

Mount Si Weather (Days 3-6):

Mostly dry. Warm (max 24°C on Wed afternoon, min 10°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. 2 hours ago	11° C	Dry	Calm (0 kph at 303).
Renton 30 km WSW 160m alt. 1 hour ago	9° C	Dry	Calm (0 kph at 166).
Black Diamond 32 km SSW 192m alt. 1 hour ago	19° C	Dry	Calm (2 kph at 0).
Grotto wx 35 km NE 321m alt. 1 hour ago	7° C	Dry	Calm (2 kph at 70).
Renton Airport 36 km WSW 218m alt. 58 minutes ago	11° C	Dry and partly cloudy.	Light winds from the S (17 kph at 170).	16 km Low: broken
Grotto wx 39 km NE 1101m alt. 2 hours ago	2° C	-	Calm (0 kph at 349).
Auburn 39 km SW 119m alt. 1 hour ago	4° C	Dry	Calm (0 kph at 194).
Stampede Pass Airport 40 km SE 628m alt. 2 hours ago	6° C	Clear	Light winds from the W.(Wind varies from 260 to 330 degs) (15 kph at 280).	16 km
Woodinville 43 km WNW 137.2m alt. 1 hour ago	4° C	Dry	Calm (5 kph at 278).
Seattl / oeing Airport 44 km WSW 218m alt. 2 hours ago	10° C	Clear	Light winds from the SSE (13 kph at 150).	16 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.