– Lat/Long: 47.51° N 121.74° W

Mount Si
Weather Forecast, United States
Issued: 10 am Wed 15 Jul Local Time
Updates in:
hr min s
Update imminent

Issued: 10 am Wed 15 Jul Local Time

Updates in:

hr min s

Update imminent

2 Mount Si Elevations: 2 Forecast Elevations:

	Days 1–3 Weather Summary Light rain (total 6mm), mostly falling on Wed night. Warm (max 26°C on Wed afternoon, min 12°C on Fri night). Wind will be generally light.									Days 4–6 Weather Summary Mostly dry. Warm (max 28°C on Mon afternoon, min 13°C on Sat night). Wind will be generally light.
	Wednesday 15			Thursday 16			Friday 17			Saturday 18			Sunday 19			Monday 20
	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	clear	clear	rain shwrs	rain shwrs	rain shwrs	rain shwrs	some clouds	clear	clear	clear	clear	clear	clear	clear	clear	clear	clear	clear
km/h	NW	NW	ESE	W	WSW	W	W	W	SE	WNW	NW	NE	NW	NW	ENE	W	NW	ESE
See all weather maps
cm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
mm	—	—	3	1.4	1.1	1	—	—	—	—	—	—	—	—	—	—	—	—
max °C	23	26	22	18	20	17	16	22	20	17	22	19	19	24	21	24	28	24
min °C	19	25	17	18	17	13	13	21	12	14	21	13	16	22	16	20	27	20
chill °C	19	25	17	18	17	13	13	21	12	14	21	13	16	22	16	20	27	20

Freezing level m	4150	4200	4050	4100	4300	4100	4050	4100	4000	3950	3900	4150	4050	4250	4400	4450	4650	4400
Cloud base (m)	6650	9250	4250	400	600	400											9550	4800

	5:24	—	—	5:24	—	—	5:26	—	—	5:26	—	—	5:28	—	—	5:30	—	—
	—	—	9:00	—	—	8:59	—	—	8:58	—	—	8:57	—	—	8:55	—	—	8:54

Mount Si Weather (Days 0-3):

The weather forecast for Mount Si is: Light rain (total 6mm), mostly falling on Wed night. Warm (max 26°C on Wed afternoon, min 12°C on Fri night). Wind will be generally light.

Mount Si Weather (Days 3-6):

Mostly dry. Warm (max 28°C on Mon afternoon, min 13°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
Renton 30 km WSW 160m alt. 2 hours ago	28° C	Dry	Calm (3 kph at 299).
Black Diamond 32 km SSW 192m alt. 2 hours ago		-	Calm (0 kph at 0).
Renton Airport 36 km WSW 218m alt. 2 hours ago	28° C	Clear	Light winds from the NNW (19 kph at 330).	16 km
Auburn 39 km SW 119m alt. 47 minutes ago	31° C	Dry	Calm (2 kph at 267).
Stampede Pass Airport 40 km SE 628m alt. 2 hours ago	26° C	-	Wind obs. (6 kph from 1 degs) was rejected.	16 km Low: few
SHIP5829 44 km SW 15m alt. 2 hours ago				- km
Seattl / oeing Airport 44 km WSW 218m alt. 2 hours ago	26° C	Clear	Light winds from the WNW (17 kph at 300).	16 km
Seattle Tacoma International Airport 44 km WSW 218m alt. 2 hours ago	27° C	-	Light winds from the WNW (19 kph at 290).	16 km Low: few Mid: few High: scattered
Snohomish 49 km NW 196m alt. 1 hour ago	27° C	Dry	Wind obs. (8 kph from 211 degs) was rejected.
lightning 40km WNW of Leavenworth 49 km ENE 746m alt. 20 minutes ago		Thunderstorm

* 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.