– Lat/Long: 47.51° N 121.74° W

Mount Si
Weather Forecast, United States
Issued: 4 pm Sun 21 Jun Local Time
Updates in:
hr min s
Update imminent

Issued: 4 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 23mm), heaviest during Fri afternoon. Warm (max 23°C on Wed afternoon, min 9°C on Fri night). Wind will be generally light.
	Sun 21		Monday 22			Tuesday 23			Wednesday 24			Thursday 25			Friday 26
	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	some clouds	clear	clear	clear	some clouds	some clouds	clear	clear	cloudy	cloudy	some clouds	some clouds	some clouds	mod. rain	light rain	light rain	mod. rain
km/h	NW	ENE	WNW	NW	ESE	W	WNW	SE	WSW	WSW	SSW	SW	SW	SW	WSW	SW	SW
See all weather maps
cm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
mm	—	—	—	—	—	—	—	—	—	—	—	—	—	5	5	5	6
max °C	21	18	22	25	22	24	27	23	20	23	19	15	18	13	12	12	11
min °C	19	13	18	24	18	21	27	16	18	22	10	12	18	11	12	12	9
chill °C	19	13	18	24	18	21	27	16	18	22	9	11	18	11	10	10	7

Freezing level m	3450	3400	3400	3750	3700	3600	3750	3650	3600	3500	3450	3350	3300	3300	2550	2400	2100
Cloud base (m)	7150		9300	8800	6850	3500	3500		6950	6250	8900		3150	400	400	550	450

	—	—	5:09	—	—	5:09	—	—	5:09	—	—	5:09	—	—	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 23mm), heaviest during Fri afternoon. Warm (max 23°C on Wed afternoon, min 9°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. 33 minutes ago	26° C	Dry	Calm (0 kph at 306).
Snoqualmie Pass 30 km ESE 824m alt. 34 minutes ago	21° C	-	Calm (0 kph at 169).
Renton 30 km WSW 160m alt. 2 hours ago	25° C	Dry	Calm (5 kph at 276).
Grotto wx 35 km NE 321m alt. 1 hour ago	24° C	Dry	Light winds from the W (13 kph at 259).
Renton Airport 36 km WSW 218m alt. 2 hours ago	24° C	Clear	Light winds from the NNW (9 kph at 330).	16 km
Grotto wx 39 km NE 1101m alt. 1 hour ago	18° C	Dry	Calm (3 kph at 46).
Auburn 39 km SW 119m alt. 1 hour ago		-	Calm (0 kph at 317).
Woodinville 43 km WNW 137.2m alt. 1 hour ago	25° C	Dry	Light winds from the NW (13 kph at 306).
Seattl / oeing Airport 44 km WSW 218m alt. 2 hours ago	24° C	Clear	Light winds from the NNW (13 kph at 330).	16 km
Seattle Tacoma International Airport 44 km WSW 218m alt. 2 hours ago	24° C	Dry and partly cloudy.	Light winds from the WNW (15 kph at 290).	16 km Low: few Mid: scattered

* 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.