– Lat/Long: 47.51° N 121.74° W

Mount Si
Weather Forecast, United States
Issued: 10 pm Sat 11 Jul Local Time
Updates in:
hr min s
Update imminent

Issued: 10 pm Sat 11 Jul 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 24°C on Tue afternoon, min 10°C on Sat night). Wind will be generally light.										Days 5–7 Weather Summary Mostly dry. Warm (max 28°C on Thu afternoon, min 14°C on Thu night). Wind will be generally light.
		Sunday 12			Monday 13			Tuesday 14			Wednesday 15			Thursday 16			Friday 17
	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	rain shwrs	clear	clear	clear	clear	clear	clear	clear	clear	clear	clear	clear	clear	clear	clear	rain shwrs	clear	clear	clear
km/h	SW	W	WNW	E	WNW	NW	E	NW	NW	NE	NW	NW	E	SE	W	SSW	W	W	S
See all weather maps
cm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
mm	0.2	—	—	—	—	—	—	—	—	—	—	—	—	—	—	0.6	—	—	—
max °C	18	15	20	16	19	23	20	21	24	20	23	26	23	26	28	24	19	24	21
min °C	10	11	18	11	15	22	14	17	23	16	18	26	20	24	27	14	16	22	13
chill °C	10	11	18	11	15	22	14	17	23	16	18	26	20	24	27	14	16	22	13

Freezing level m	3000	3350	3600	3800	3900	4050	4100	4300	4350	4250	4300	4450	4600	4700	4850	4800	4650	4650	4600
Cloud base (m)	650					8950				7200			4600	5250	5000		9050

	—	5:20	—	—	5:22	—	—	5:22	—	—	5:24	—	—	5:24	—	—	5:26	—	—
	—	—	—	9:01	—	—	9:00	—	—	9:00	—	—	9:00	—	—	8:59	—	—	8:58

Mount Si Weather (Days 0-3):

The weather forecast for Mount Si is: Mostly dry. Warm (max 24°C on Tue afternoon, min 10°C on Sat night). Wind will be generally light.

Mount Si Weather (Days 3-6):

Mostly dry. Warm (max 28°C on Thu afternoon, min 14°C on Thu 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. 2 hours ago	13° C	Dry	Calm (0 kph at 350).
Snoqualmie Pass 30 km ESE 824m alt. 2 hours ago	13° C	-	Calm (5 kph at 217).
Renton 30 km WSW 160m alt. 2 hours ago	15° C	Dry	Calm (3 kph at 208).
Grotto wx 35 km NE 321m alt. 39 minutes ago	15° C	Dry	Light winds from the WSW (6 kph at 237).
Renton Airport 36 km WSW 218m alt. 2 hours ago	17° C	Dry and cloudy.	Light winds from the SSW (11 kph at 200).	16 km Low: overcast
Grotto wx 39 km NE 1101m alt. 59 minutes ago	9° C	Dry	Calm (2 kph at 52).
Auburn 39 km SW 119m alt. 1 hour ago		-	Calm (0 kph at 267).
Stampede Pass Airport 40 km SE 628m alt. 2 hours ago	9° C	Fog -.	Wind obs. (6 kph from 1 degs) was rejected.	1 km Low: broken Mid: overcast
Woodinville 43 km WNW 137.2m alt. 1 hour ago	14° C	Dry	Wind obs. (6 kph from 278 degs) was rejected.
Seattl / oeing Airport 44 km WSW 218m alt. 1 hour ago	15° C	Dry and partly cloudy.	Light winds from the SSE (17 kph at 160).	16 km Low: scattered Mid: broken High: broken

* 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.