– Lat/Long: 47.51° N 121.74° W

Mount Si
Weather Forecast, United States
Issued: 4 pm Sun 26 Jul Local Time
Updates in:
hr min s
Update imminent

Issued: 4 pm Sun 26 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 22°C on Mon afternoon, min 12°C on Tue night). Wind will be generally light.											Days 5–7 Weather Summary Mostly dry. Warm (max 25°C on Fri afternoon, min 12°C on Wed night). Wind will be generally light.
	Sun 26		Monday 27			Tuesday 28			Wednesday 29			Thursday 30			Friday 31
	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	some clouds	some clouds	clear	clear	clear	rain shwrs	rain shwrs	rain shwrs	clear	some clouds	clear	clear	some clouds	clear	clear	clear	clear
Cloud base (m)	1700	2850	5600	2350		850	1700	700	9400	6350	9050		6750
km/h	W	S	W	WSW	SE	SW	WNW	W	WNW	WNW	ESE	W	W	ESE	WNW	NW	S
See all weather maps
cm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
mm	—	—	—	—	—	0.2	0.2	0.5	—	—	—	—	—	—	—	—	—
max °C	21	17	18	22	19	16	19	16	17	21	18	18	21	19	22	25	21
min °C	20	13	15	21	13	15	17	12	13	21	12	15	21	14	17	24	14
chill °C	20	13	15	21	13	15	17	12	13	21	12	15	21	14	17	24	14

Freezing level m	3350	3250	3450	3500	3850	3550	3650	3950	3950	3850	4050	4050	4150	4400	4550	4850	4650

	—	—	5:37	—	—	5:39	—	—	5:39	—	—	5:41	—	—	5:43	—	—
	—	8:49	—	—	8:47	—	—	8:45	—	—	8:45	—	—	8:44	—	—	8:42

Mount Si Weather (Days 0-3):

The weather forecast for Mount Si is: Mostly dry. Warm (max 22°C on Mon afternoon, min 12°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 12°C on Wed 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. 34 minutes ago	18° C	Dry	Calm (3 kph at 229).
Renton Airport 36 km WSW 218m alt. 2 hours ago	21° C	Dry and cloudy.	Light winds from the SW (9 kph at 230).	16 km Low: broken Mid: overcast
Auburn 39 km SW 119m alt. 1 hour ago	33° C	Dry	Calm (0 kph at 253).
Stampede Pass Airport 40 km SE 628m alt. 2 hours ago	15° C	Dry and partly cloudy.	Wind obs. (9 kph from 1 degs) was rejected.	16 km Low: scattered Mid: broken
Seattl / oeing Airport 44 km WSW 218m alt. 2 hours ago	21° C	Dry and cloudy.	Light winds from the W (13 kph at 270).	16 km Low: scattered Mid: scattered High: overcast
Seattle Tacoma International Airport 44 km WSW 218m alt. 2 hours ago	19° C	Dry and partly cloudy.	Light winds from the WSW (15 kph at 250).	16 km Low: scattered Mid: broken
BUOY-EBSW1 46 km W 3m alt. 55 minutes ago
Snohomish 49 km NW 196m alt. 1 hour ago	18° C	Dry	Calm (0 kph at 145).
Seattle 49 km WSW 100m alt. 1 hour ago	31° C	-
SHIP6697 54 km W 15m alt. 3 hours ago				- 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.