– Lat/Long: 47.51° N 121.74° W

Mount Si
Weather Forecast, United States
Issued: 4 pm Wed 29 Jul Local Time
Updates in:
hr min s
Update imminent

Issued: 4 pm Wed 29 Jul Local Time

Updates in:

hr min s

Update imminent

2 Mount Si Elevations: 2 Forecast Elevations:

	Days 1–4 Weather Summary Mostly dry. Warm (max 25°C on Fri afternoon, min 11°C on Wed night). Wind will be generally light.											Days 5–7 Weather Summary Light rain (total 6mm), mostly falling on Sat afternoon. Warm (max 24°C on Tue morning, min 9°C on Sun night). Wind will be generally light.
	Wed 29		Thursday 30			Friday 31			Saturday 1			Sunday 2			Monday 3
	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	clear	clear	clear	clear	clear	clear	clear	clear	rain shwrs	light rain	rain shwrs	rain shwrs	rain shwrs	clear	clear	clear	clear
Cloud base (m)		9450						9400	1700	450	800	600
km/h	NW	SSE	W	W	ESE	WNW	WNW	SSE	SW	WSW	SW	NW	NNW	ENE	NW	NW	ESE
See all weather maps
cm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
mm	—	—	—	—	—	—	—	—	0.1	4	1.1	0.4	0.1	—	—	—	—
max °C	21	18	17	22	19	21	25	22	16	15	13	13	18	14	17	22	19
min °C	20	11	14	21	13	17	24	14	15	13	10	11	17	9	14	21	16
chill °C	20	11	14	21	13	17	24	14	14	12	10	11	17	9	14	21	16

Freezing level m	4000	4050	4000	4200	4400	4450	4550	4400	3400	2800	2650	2900	3200	3200	3550	3700	3800

	—	—	5:41	—	—	5:43	—	—	5:43	—	—	5:45	—	—	5:46	—	—
	—	8:45	—	—	8:44	—	—	8:42	—	—	8:40	—	—	8:39	—	—	8:37

Mount Si Weather (Days 0-3):

The weather forecast for Mount Si is: Mostly dry. Warm (max 25°C on Fri afternoon, min 11°C on Wed night). Wind will be generally light.

Mount Si Weather (Days 3-6):

Light rain (total 6mm), mostly falling on Sat afternoon. Warm (max 24°C on Tue morning, min 9°C on Sun 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	26° C	Dry	Calm (0 kph at 14).
Renton Airport 36 km WSW 218m alt. 2 hours ago	24° C	Clear	Light winds from the NNW (11 kph at 340).	16 km
Auburn 39 km SW 119m alt. 1 hour ago		-	Calm (0 kph at 275).
Seattl / oeing Airport 44 km WSW 218m alt. 2 hours ago	24° C	Clear	Light winds from the WNW (13 kph at 300).	16 km
Seattle Tacoma International Airport 44 km WSW 218m alt. 2 hours ago	23° C	Dry and partly cloudy.	Light winds from the WNW (17 kph at 300).	16 km Low: few Mid: broken
BUOY-EBSW1 46 km W 3m alt. 48 minutes ago
Snohomish 49 km NW 196m alt. 52 minutes ago	22° C	Dry	Calm (5 kph at 221).
Seattle 49 km WSW 100m alt. 20 minutes ago		-
SHIP1475 51 km W 15m alt. 2 hours ago			Light winds from the WNW (12 kph at 290).	- km
SHIP6115 51 km W 15m alt. 3 hours ago			Light winds from the WNW (13 kph at 290).	- 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.