– Lat/Long: 47.51° N 121.74° W

Mount Si
Weather Forecast, United States
Issued: 10 pm Thu 13 Aug Local Time
Updates in:
hr min s
Update imminent

Issued: 10 pm Thu 13 Aug Local Time

Updates in:

hr min s

Update imminent

2 Mount Si Elevations: 2 Forecast Elevations:

	Days 1–4 Weather Summary Some drizzle, heaviest during Fri night. Warm (max 25°C on Fri afternoon, min 15°C on Fri night). Wind will be generally light.										Days 5–7 Weather Summary Mostly dry. Warm (max 24°C on Mon afternoon, min 13°C on Mon night). Wind will be generally light.
		Friday 14			Saturday 15			Sunday 16			Monday 17			Tuesday 18
	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	rain shwrs	rain shwrs	clear	rain shwrs	some clouds	rain shwrs	some clouds	some clouds	clear	clear	clear	clear	some clouds	some clouds	clear	clear
Cloud base (m)			3350		3450	3600		6300		9000			2450	6250
km/h	ESE	W	NW	SE	WNW	WNW	ESE	NW	NW	ENE	NW	NW	SSW	W	W	ENE
See all weather maps
cm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
mm	0.1	0.2	—	0.4	—	0.5	—	—	—	—	—	—	—	—	—	—
max °C	20	21	25	19	20	23	21	19	23	20	21	24	20	17	22	19
min °C	16	18	24	15	16	22	15	16	22	15	17	23	13	14	20	13
chill °C	16	18	24	15	16	22	15	16	22	15	17	23	13	14	20	13

Freezing level m	3500	3400	3450	3600	3650	3750	3800	3800	4000	4100	4050	4000	3800	3850	4150	4300

	—	6:01	—	—	6:01	—	—	6:03	—	—	6:05	—	—	6:05	—	—
	—	—	—	8:21	—	—	8:19	—	—	8:16	—	—	8:15	—	—	8:14

Mount Si Weather (Days 0-3):

The weather forecast for Mount Si is: Some drizzle, heaviest during Fri night. Warm (max 25°C on Fri afternoon, min 15°C on Fri night). Wind will be generally light.

Mount Si Weather (Days 3-6):

Mostly dry. Warm (max 24°C on Mon afternoon, min 13°C on Mon 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. 47 minutes ago	16° C	Dry	Calm (0 kph at 100).
Renton Airport 36 km WSW 218m alt. 2 hours ago	18° C	Clear	Calm (0 kph at 0).	11 km
Auburn 39 km SW 119m alt. 1 hour ago		-	Calm (0 kph at 319).
SHIP11229 42 km WSW 15m alt. 3 hours ago			Light winds from the N (10 kph at 0).	- km
Seattl / oeing Airport 44 km WSW 218m alt. 2 hours ago	19° C	Clear	Calm (0 kph at 0).	16 km
SHIP4479 42 km WSW 3m alt. 2 hours ago	17° C		Calm (5 kph at 340).
SHIP2741 42 km WSW 15m alt. 2 hours ago			Calm (6 kph at 340).	- km
SHIP12457 42 km WSW 3m alt. 3 hours ago	19° C		Light winds from the N (9 kph at 0).
SHIP4460 42 km WSW 15m alt. 2 hours ago			Calm (6 kph at 340).	- km
SHIP3113 42 km WSW 15m alt. 3 hours ago			Light winds from the N (10 kph at 0).	- 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.