– Lat/Long: 47.51° N 121.74° W

Mount Si
Weather Forecast, United States
Issued: 10 pm Sun 21 Jun Local Time
Updates in:
hr min s
Update imminent

Issued: 10 pm Sun 21 Jun 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 27°C on Tue afternoon, min 13°C on Sun night). Wind will be generally light.										Days 5–7 Weather Summary Heavy rain (total 29mm), heaviest during Fri night. Warm (max 20°C on Wed night, min 8°C on Fri night). Wind will be generally light.
		Monday 22			Tuesday 23			Wednesday 24			Thursday 25			Friday 26			Saturday 27
	night	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	some clouds	some clouds	cloudy	some clouds	some clouds	some clouds	some clouds	light rain	rain shwrs	light rain	heavy rain	light rain	light rain	rain shwrs
km/h	NE	NW	NW	ESE	W	WNW	SE	WSW	WSW	SSW	SW	WSW	SW	SW	SW	WSW	WSW	NW	WSW
See all weather maps
cm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
mm	—	—	—	—	—	—	—	—	—	—	—	—	3	3	5	15	2	1.4	0.2
max °C	18	22	24	21	24	27	23	19	23	20	16	18	11	11	12	11	8	11	11
min °C	13	18	24	18	21	26	16	17	21	11	13	15	11	11	12	8	8	11	9
chill °C	13	18	24	18	21	26	16	17	21	10	12	15	11	10	11	6	7	11	8

Freezing level m	3350	3400	3750	3700	3550	3750	3600	3500	3450	3500	3450	3100	3050	2300	2350	1950	1850	2400	2900
Cloud base (m)		9250	8950		3500		7100	6350		8900	6450	3000	400	400	550	400	400	650	700

	—	5:09	—	—	5:09	—	—	5:09	—	—	5:09	—	—	5:11	—	—	5:11	—	—
	—	—	—	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 27°C on Tue afternoon, min 13°C on Sun night). Wind will be generally light.

Mount Si Weather (Days 3-6):

Heavy rain (total 29mm), heaviest during Fri night. Warm (max 20°C on Wed night, min 8°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
Harman Heights wx 6 km SSW 251m alt. 1 hour ago	13° C	Dry	Calm (0 kph at 336).
Snoqualmie Pass 30 km ESE 824m alt. 1 hour ago	9° C	-	Calm (0 kph at 38).
Renton 30 km WSW 160m alt. 2 hours ago	17° C	Dry	Calm (3 kph at 30).
Grotto wx 35 km NE 321m alt. 1 hour ago	14° C	Dry	Calm (0 kph at 65).
Renton Airport 36 km WSW 218m alt. 2 hours ago	19° C	Clear	Light winds from the NNW (6 kph at 330).	16 km
Grotto wx 39 km NE 1101m alt. 3 hours ago	10° C	Dry	Calm (0 kph at 5).
Auburn 39 km SW 119m alt. 1 hour ago	14° C	Dry	Calm (0 kph at 225).
Stampede Pass Airport 40 km SE 628m alt. 2 hours ago	11° C	Clear	Light winds from the SW (6 kph at 220).	16 km
Woodinville 43 km WNW 137.2m alt. 1 hour ago	14° C	Dry	Calm (2 kph at 328).
Seattl / oeing Airport 44 km WSW 218m alt. 2 hours ago	19° C	Clear	Calm (0 kph at 0).	16 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.