– Lat/Long: 47.51° N 121.74° W

Mount Si
Weather Forecast, United States
Issued: 10 am Sat 20 Jun Local Time
Updates in:
hr min s
Update imminent

Issued: 10 am Sat 20 Jun 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 25°C on Mon afternoon, min 10°C on Sat night). Wind will be generally light.									Days 4–6 Weather Summary Mostly dry. Warm (max 26°C on Tue afternoon, min 10°C on Wed night). Wind will be generally light.
	Saturday 20			Sunday 21			Monday 22			Tuesday 23			Wednesday 24			Thursday 25
	AM	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	clear	clear	clear	clear	some clouds	some clouds	clear	clear	clear	light rain
km/h	WSW	WSW	E	WNW	NW	ENE	NW	NW	E	NW	NW	ENE	NW	W	SSW	WSW	WSW	SW
See all weather maps
cm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
mm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	0.5
max °C	14	19	17	17	22	19	22	25	22	23	26	23	20	23	19	16	20	16
min °C	12	17	10	13	20	14	18	24	17	20	25	15	17	23	10	13	19	10
chill °C	11	17	10	13	20	14	18	24	17	20	25	15	17	23	10	13	19	9

Freezing level m	3550	3450	3500	3300	3450	3550	3550	3850	3750	3650	3950	3950	3700	3750	3650	3850	3800	3400
Cloud base (m)			8850	8800				9050				9100	8100	5950		9500	5900	1900

	5:09	—	—	5:09	—	—	5:09	—	—	5:09	—	—	5:09	—	—	5:09	—	—
	—	—	9:07	—	—	9:07	—	—	9:07	—	—	9:07	—	—	9:07	—	—	9:07

Mount Si Weather (Days 0-3):

The weather forecast for Mount Si is: Mostly dry. Warm (max 25°C on Mon afternoon, min 10°C on Sat night). Wind will be generally light.

Mount Si Weather (Days 3-6):

Mostly dry. Warm (max 26°C on Tue afternoon, min 10°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
Harman Heights wx 6 km SSW 251m alt. 38 minutes ago	23° C	Dry	Calm (0 kph at 281).
Snoqualmie Pass 30 km ESE 824m alt. 1 hour ago	20° C	-	Calm (0 kph at 221).
Renton 30 km WSW 160m alt. 53 minutes ago	21° C	Dry	Calm (5 kph at 176).
Black Diamond 32 km SSW 192m alt. 42 minutes ago		-	Wind obs. (6 kph from 122 degs) was rejected.
Grotto wx 35 km NE 321m alt. 28 minutes ago	21° C	Dry	Light winds from the W (18 kph at 267).
Renton Airport 36 km WSW 218m alt. 2 hours ago	22° C	-	Light winds from the SSW (17 kph at 200).	16 km Low: few
Auburn 39 km SW 119m alt. 56 minutes ago		-	Calm (0 kph at 213).
Stampede Pass Airport 40 km SE 628m alt. 2 hours ago	16° C	Clear	Light winds from the WSW.(Wind varies from 160 to 330 degs) (13 kph at 240).	16 km
SHIP2500 42 km WSW 3m alt. 3 hours ago
SHIP1964 42 km WSW 15m alt. 2 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.