– Lat/Long: 47.51° N 121.74° W

Mount Si
Weather Forecast, United States
Issued: 4 pm Mon 24 Aug Local Time
Updates in:
hr min s
Update imminent

Issued: 4 pm Mon 24 Aug 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 28°C on Tue afternoon, min 13°C on Wed night). Wind will be generally light.											Days 5–7 Weather Summary Light rain (total 4mm), mostly falling on Fri night. Very mild (max 18°C on Thu afternoon, min 10°C on Sat night). Wind will be generally light.
	Mon 24		Tuesday 25			Wednesday 26			Thursday 27			Friday 28			Saturday 29
	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	clear	clear	clear	some clouds	clear	clear	clear	clear	rain shwrs	rain shwrs	rain shwrs	rain shwrs	rain shwrs	light rain	rain shwrs	rain shwrs	clear
Cloud base (m)		9000		4150					700	800	1600	600	900	600	600	800
km/h	NNW	ESE	SW	W	ESE	W	WSW	SE	WSW	WSW	S	WSW	WNW	W	WNW	NW	ENE
See all weather maps
cm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
mm	—	—	—	—	—	—	—	—	0.2	0.8	0.1	0.2	0.2	2	0.4	0.2	—
max °C	27	21	27	28	22	20	23	19	15	18	16	14	17	15	12	16	14
min °C	26	20	22	27	16	17	23	13	14	16	11	13	16	11	11	15	10
chill °C	26	20	22	27	16	17	23	13	14	16	11	13	16	11	11	15	10

Freezing level m	4100	4150	4200	4250	4200	4050	4000	3700	3300	2850	3100	3150	3000	2600	2800	3150	3600

	—	—	6:15	—	—	6:16	—	—	6:18	—	—	6:18	—	—	6:20	—	—
	—	8:02	—	—	8:00	—	7:59	—	—	7:57	—	—	7:54	—	—	7:52	—

Mount Si Weather (Days 0-3):

The weather forecast for Mount Si is: Mostly dry. Warm (max 28°C on Tue afternoon, min 13°C on Wed night). Wind will be generally light.

Mount Si Weather (Days 3-6):

Light rain (total 4mm), mostly falling on Fri night. Very mild (max 18°C on Thu afternoon, min 10°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 (0 kph at 20).
Black Diamond 32 km SSW 192m alt. 2 hours ago		-	Calm (2 kph at 0).
Renton Airport 36 km WSW 218m alt. 2 hours ago	23°C	Clear	Light winds from the NNW (15 kph at 340).	16 km
Auburn 39 km SW 119m alt. 1 hour ago	24°C	Dry	Calm (0 kph at 105).
Monroe 44 km NW 80m alt. 2 hours ago	14°C	Dry	Calm (0 kph at 81).
Seattl / oeing Airport 44 km WSW 218m alt. 2 hours ago	22°C	Clear	Light winds from the NW (11 kph at 320).	16 km
Seattle Tacoma International Airport 44 km WSW 218m alt. 2 hours ago	22°C	Dry and partly cloudy.	Light winds from the N (17 kph at 350).	16 km Low: scattered Mid: broken
BUOY-EBSW1 46 km W 3m alt. 1 hour ago
Snohomish 49 km NW 196m alt. 2 hours ago	18°C	Dry	Calm (0 kph at 190).
Seattle 49 km WSW 100m alt. 2 hours ago	26°C	-

* 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.