– Lat/Long: 47.51° N 121.74° W

Mount Si
Weather Forecast, United States
Issued: 10 am Tue 28 Jul Local Time
Updates in:
hr min s
Update imminent

Issued: 10 am Tue 28 Jul 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 Tue night. Warm (max 22°C on Wed afternoon, min 11°C on Tue night). Wind will be generally light.									Days 4–6 Weather Summary Light rain (total 5mm), mostly falling on Sat afternoon. Warm (max 25°C on Fri afternoon, min 8°C on Sat night). Wind will be generally light.
	Tuesday 28			Wednesday 29			Thursday 30			Friday 31			Saturday 1			Sunday 2
	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	rain shwrs	rain shwrs	rain shwrs	some clouds	clear	clear	clear	clear	clear	clear	clear	clear	light rain	rain shwrs	rain shwrs	rain shwrs	clear	clear
Cloud base (m)	800	1700	1750	500	9550								600	450		750	850
km/h	SW	W	W	NW	WNW	SSE	W	WNW	SE	W	WNW	S	SW	SW	S	WSW	NNW	NE
See all weather maps
cm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
mm	0.3	0.6	0.9	—	—	—	—	—	—	—	—	—	0.1	4	1	0.1	—	—
max °C	17	18	16	15	22	18	18	22	20	21	25	22	15	15	13	12	17	14
min °C	14	16	11	12	20	12	15	21	13	17	23	14	14	13	8	10	16	10
chill °C	14	16	11	12	20	12	15	21	13	17	23	14	13	12	8	10	16	10

Freezing level m	3300	3650	3800	3950	4050	4050	4000	4200	4350	4350	4450	4300	3000	2600	2950	2650	3200	3550

	5:39	—	—	5:39	—	—	5:41	—	—	5:43	—	—	5:43	—	—	5:45	—	—
	—	—	8:45	—	—	8:45	—	—	8:44	—	—	8:42	—	—	8:40	—	—	8:39

Mount Si Weather (Days 0-3):

The weather forecast for Mount Si is: Some drizzle, heaviest during Tue night. Warm (max 22°C on Wed afternoon, min 11°C on Tue night). Wind will be generally light.

Mount Si Weather (Days 3-6):

Light rain (total 5mm), mostly falling on Sat afternoon. Warm (max 25°C on Fri afternoon, min 8°C on Sat 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	22° C	Dry	Calm (3 kph at 253).
Renton Airport 36 km WSW 218m alt. 2 hours ago	23° C	Dry and partly cloudy.	Light winds from the SW (11 kph at 230).	16 km Low: scattered
Auburn 39 km SW 119m alt. 44 minutes ago		-	Calm (0 kph at 51).
Stampede Pass Airport 40 km SE 628m alt. 51 minutes ago	17° C	Dry and partly cloudy.	Wind obs. (9 kph from 1 degs) was rejected.	16 km Low: scattered
SHIP5581 43 km W 15m alt. 47 minutes ago				- km
Seattl / oeing Airport 44 km WSW 218m alt. 54 minutes ago	22° C	Dry and partly cloudy.	Moderate winds from the SW (20 kph at 230).	16 km Low: scattered Mid: broken
Seattle Tacoma International Airport 44 km WSW 218m alt. 2 hours ago	22° C	Dry and partly cloudy.	Light winds from the WSW (19 kph at 250).	16 km Low: scattered Mid: broken High: broken
BUOY-EBSW1 46 km W 3m alt. 59 minutes ago
Snohomish 49 km NW 196m alt. 1 hour ago	20° C	Dry	Wind obs. (14 kph from 220 degs) was rejected.
Seattle 49 km WSW 100m alt. 39 minutes ago		-	Light winds from the S (11 kph at 182).

* 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.