– Lat/Long: 47.51° N 121.74° W

Mount Si
Weather Forecast, United States
Issued: 4 am Mon 13 Jul Local Time
Updates in:
hr min s
Update imminent

Issued: 4 am Mon 13 Jul 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 27°C on Wed afternoon, min 15°C on Mon morning). Wind will be generally light.									Days 4–6 Weather Summary Light rain (total 2mm), mostly falling on Sat afternoon. Warm (max 28°C on Thu afternoon, min 12°C on Sat night). Wind will be generally light.
	Monday 13			Tuesday 14			Wednesday 15			Thursday 16			Friday 17			Saturday 18
	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	clear	clear	clear	clear	clear	some clouds	some clouds	clear	clear	some clouds	rain shwrs	rain shwrs	rain shwrs	risk tstorm	risk tstorm	rain shwrs	rain shwrs	rain shwrs
km/h	WNW	NW	ESE	WNW	NW	SE	WNW	NW	E	WNW	NW	ESE	WNW	W	SSW	W	WSW	SW
See all weather maps
cm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
mm	—	—	—	—	—	—	—	—	—	—	0.2	0.1	0.1	0.6	0.3	0.3	0.6	0.1
max °C	19	23	20	22	25	22	23	27	23	26	28	25	27	28	25	21	24	21
min °C	15	22	15	18	25	17	19	27	18	22	28	22	24	27	16	17	23	12
chill °C	15	22	15	18	25	17	19	27	18	22	28	22	24	27	16	17	23	12

Freezing level m	3750	4000	4150	4300	4450	4300	4000	4200	4250	4350	4550	4650	4700	4800	4700	4500	4600	4350
Cloud base (m)							4950			4800	4550	9450	8850	4850			1850

	5:22	—	—	5:22	—	—	5:24	—	—	5:24	—	—	5:26	—	—	5:26	—	—
	—	—	9:00	—	—	9:00	—	—	9:00	—	—	8:59	—	—	8:58	—	—	8:57

Mount Si Weather (Days 0-3):

The weather forecast for Mount Si is: Mostly dry. Warm (max 27°C on Wed afternoon, min 15°C on Mon morning). Wind will be generally light.

Mount Si Weather (Days 3-6):

Light rain (total 2mm), mostly falling on Sat afternoon. Warm (max 28°C on Thu afternoon, min 12°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
Harman Heights wx 6 km SSW 251m alt. 1 hour ago	8° C	Dry	Calm (0 kph at 339).
Snoqualmie Pass 30 km ESE 824m alt. 1 hour ago	5° C	-	Calm (0 kph at 40).
Renton 30 km WSW 160m alt. 2 hours ago	11° C	Dry	Calm (0 kph at 27).
Grotto wx 35 km NE 321m alt. 2 hours ago	11° C	Dry	Calm (3 kph at 85).
Renton Airport 36 km WSW 218m alt. 3 hours ago	14° C	Clear	Light winds from the N (9 kph at 350).	16 km
Grotto wx 39 km NE 1101m alt. 2 hours ago	5° C	Dry	Calm (0 kph at 5).
Auburn 39 km SW 119m alt. 58 minutes ago		-	Calm (0 kph at 209).
Stampede Pass Airport 40 km SE 628m alt. 3 hours ago	7° C	Clear	Calm (0 kph at 0).	16 km
Woodinville 43 km WNW 137.2m alt. 1 hour ago	6° C	Dry	Calm (2 kph at 304).
Seattl / oeing Airport 44 km WSW 218m alt. 3 hours ago	14° 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.