– Lat/Long: 47.51° N 121.74° W

Mount Si
Weather Forecast, United States
Issued: 4 am Thu 07 May Local Time
Updates in:
hr min s
Update imminent

Issued: 4 am Thu 07 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 12°C on Sat night, min 3°C on Thu morning). Wind will be generally light.									Days 4–6 Weather Summary Mostly dry. Very mild (max 16°C on Tue afternoon, min 5°C on Sun night). Wind will be generally light.
	Thursday 7			Friday 8			Saturday 9			Sunday 10			Monday 11			Tuesday 12
	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	clear	clear	some clouds	cloudy	clear	clear	clear	cloudy	some clouds	cloudy	some clouds	rain shwrs	some clouds	clear	clear	clear	some clouds	clear
km/h	NW	WNW	WSW	SW	W	SW	NNW	NW	SW	SW	W	N	N	N	ENE	SSE	WNW	NNW
See all weather maps
cm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
mm	—	—	—	—	—	—	—	—	—	—	—	0.1	—	—	—	—	—	—
max °C	5	9	8	6	8	7	9	11	12	9	7	7	7	10	11	15	16	15
min °C	3	7	7	5	7	5	7	10	9	8	7	5	6	9	11	13	15	13
chill °C	0	6	6	2	4	3	6	10	9	6	5	1	3	8	11	13	15	12

Freezing level m	3250	3350	3400	2350	2500	3050	3400	3450	3350	3100	2550	2450	3200	3400	3550	3750	3850	3800
Cloud base (m)	500		6750	5600	2650	1900	8850	6650	5750	600	2150	1850	6700	9150		7200	7000

	5:41	—	—	5:39	—	—	5:37	—	—	5:35	—	—	5:35	—	—	5:33	—	—
	—	—	8:25	—	—	8:27	—	—	8:29	—	—	8:30	—	—	8:30	—	—	8:32

Mount Si Weather (Days 0-3):

The weather forecast for Mount Si is: Mostly dry. Very mild (max 12°C on Sat night, min 3°C on Thu morning). Wind will be generally light.

Mount Si Weather (Days 3-6):

Mostly dry. Very mild (max 16°C on Tue afternoon, min 5°C on Sun night). Wind will be generally light.

This table gives the weather forecast for Mount Si at the specific elevation of 1270 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	12° C	Dry	Calm (0 kph at 321).
Renton 30 km WSW 160m alt. 1 hour ago	8° C	Dry	Calm (0 kph at 77).
Black Diamond 32 km SSW 192m alt. 44 minutes ago	13° C	Dry	Calm (0 kph at 0).
Grotto wx 35 km NE 321m alt. 1 hour ago	10° C	Dry	Calm (5 kph at 270).
Renton Airport 36 km WSW 218m alt. 2 hours ago	12° C	Dry and cloudy.	Light winds from the SSE (7 kph at 160).	16 km Low: scattered Mid: overcast
Grotto wx 39 km NE 1101m alt. 1 hour ago	4° C	Dry	Calm (0 kph at 56).
Auburn 39 km SW 119m alt. 41 minutes ago	1° C	-	Calm (0 kph at 49).
Stampede Pass Airport 40 km SE 628m alt. 2 hours ago	4° C	Fog -.	Wind obs. (6 kph from 1 degs) was rejected.	0 km
Woodinville 43 km WNW 137.2m alt. 53 minutes ago	9° C	Dry	Wind obs. (14 kph from 319 degs) was rejected.
Seattl / oeing Airport 44 km WSW 218m alt. 2 hours ago	12° C	Dry and cloudy.	Light winds from the S (9 kph at 170).	16 km Low: overcast

* 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.