– Lat/Long: 47.51° N 121.74° W

Mount Si
Weather Forecast, United States
Issued: 10 am Mon 13 Jul Local Time
Updates in:
hr min s
Update imminent

Issued: 10 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 26°C on Wed afternoon, min 14°C on Mon night). Wind will be generally light.									Days 4–6 Weather Summary Mostly dry. Warm (max 27°C on Thu afternoon, min 11°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	clear	clear	rain shwrs	rain shwrs	rain shwrs	clear	clear	clear	clear
km/h	WNW	NW	ESE	WNW	NW	ESE	WNW	NW	E	E	NW	S	WSW	WSW	S	W	WNW	NNE
See all weather maps
cm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
mm	—	—	—	—	—	—	—	—	—	—	—	0.7	0.2	0.1	—	—	—	—
max °C	19	23	20	22	25	21	23	26	23	25	27	24	15	18	18	18	22	19
min °C	15	22	14	18	24	17	19	25	17	20	27	14	15	16	12	14	21	11
chill °C	15	22	14	18	24	17	19	25	17	20	27	14	15	16	12	14	21	11

Freezing level m	3750	4000	4150	4300	4350	4300	4000	4250	4200	4350	4450	4350	4050	4150	4000	3900	3950	3950
Cloud base (m)										4800	7550	5600	500	500

	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 26°C on Wed afternoon, min 14°C on Mon night). Wind will be generally light.

Mount Si Weather (Days 3-6):

Mostly dry. Warm (max 27°C on Thu afternoon, min 11°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
Snoqualmie Pass 30 km ESE 824m alt. 2 hours ago	27° C	-	Calm (0 kph at 243).
Grotto wx 35 km NE 321m alt. 2 hours ago	23° C	Dry	Light winds from the W (16 kph at 271).
Renton Airport 36 km WSW 218m alt. 2 hours ago	23° C	Clear	Light winds from the NNW (19 kph at 330).	16 km
Stampede Pass Airport 40 km SE 628m alt. 2 hours ago	21° C	Clear	Calm (0 kph at 0).	16 km
Seattl / oeing Airport 44 km WSW 218m alt. 2 hours ago	22° C	Clear	Light winds from the WNW (11 kph at 300).	16 km
Seattle Tacoma International Airport 44 km WSW 218m alt. 2 hours ago	23° C	Dry and partly cloudy.	Light winds from the NNE (13 kph at 30).	16 km Low: few Mid: scattered
BUOY-WPOW1 55 km W 3m alt. 1 hour ago	17° C		Light winds from the NNE (17 kph at 30).
Lake Roesiger wx 56 km NW 239m alt. 2 hours ago	23° C	Dry	Wind obs. (6 kph from 133 degs) was rejected.
BUOY-TCNW1 57 km SW 3m alt. 1 hour ago
BUOY-TCMW1 57 km SW 3m alt. 1 hour ago	19° C		Light winds from the WNW (9 kph at 300).

* 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.