– Lat/Long: 47.51° N 121.74° W

Mount Si
Weather Forecast, United States
Issued: 4 am Tue 11 Aug Local Time
Updates in:
hr min s
Update imminent

Issued: 4 am Tue 11 Aug 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 Thu afternoon, min 13°C on Tue night). Wind will be generally light.									Days 4–6 Weather Summary Mostly dry. Warm (max 25°C on Fri afternoon, min 15°C on Fri night). Wind will be generally light.
	Tuesday 11			Wednesday 12			Thursday 13			Friday 14			Saturday 15			Sunday 16
	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	clear	clear	clear	some clouds	some clouds	clear	clear	clear	rain shwrs	some clouds	clear	clear	clear	rain shwrs	clear	clear	clear	some clouds
Cloud base (m)			8900		1800		3400	3450	3500	3500	3500			3950		8600	9000
km/h	NW	NW	NNE	NW	NW	ESE	WNW	NW	SSW	WNW	WNW	ESE	WNW	WNW	ESE	WNW	NW	E
See all weather maps
cm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
mm	—	—	—	—	—	—	—	—	0.1	—	—	—	—	0.1	—	—	—	—
max °C	19	23	18	18	20	18	20	24	21	21	25	22	21	24	21	22	25	20
min °C	15	21	13	15	20	14	16	23	16	17	24	15	17	23	15	17	24	16
chill °C	15	21	13	15	20	14	16	23	16	17	24	15	17	23	15	17	24	16

Freezing level m	3900	3850	3850	3600	3600	3650	3500	3700	3700	3650	3800	3850	3850	3900	3900	3800	4050	4100

	5:56	—	—	5:58	—	—	5:58	—	—	6:01	—	—	6:01	—	—	6:03	—	—
	—	—	8:25	—	—	8:23	—	—	8:22	—	—	8:21	—	—	8:19	—	—	8:16

Mount Si Weather (Days 0-3):

The weather forecast for Mount Si is: Mostly dry. Warm (max 24°C on Thu afternoon, min 13°C on Tue night). Wind will be generally light.

Mount Si Weather (Days 3-6):

Mostly dry. Warm (max 25°C on Fri afternoon, min 15°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. 41 minutes ago	13° C	Dry	Calm (0 kph at 82).
Black Diamond 32 km SSW 192m alt. 38 minutes ago		-	Wind obs. (11 kph from 360 degs) was rejected.
Renton Airport 36 km WSW 218m alt. 2 hours ago	15° C	Clear	Light winds from the ESE (6 kph at 120).	16 km
Auburn 39 km SW 119m alt. 2 hours ago		-	Calm (0 kph at 95).
Stampede Pass Airport 40 km SE 628m alt. 2 hours ago	9° C	Clear	Wind obs. (9 kph from 210 degs) was rejected.	16 km
Seattl / oeing Airport 44 km WSW 218m alt. 2 hours ago	17° C	Clear	Calm (0 kph at 0).	16 km
Seattle Tacoma International Airport 44 km WSW 218m alt. 2 hours ago	13° C	Dry and partly cloudy.	Light winds from the S (6 kph at 180).	16 km Low: few Mid: scattered
BUOY-EBSW1 46 km W 3m alt. 1 hour ago
Snohomish 49 km NW 196m alt. 1 hour ago	10° C	Dry	Calm (0 kph at 136).
Seattle 49 km WSW 100m alt. 46 minutes 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.