– Lat/Long: 47.51° N 121.74° W

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

Issued: 4 am Thu 13 Aug Local Time

Updates in:

hr min s

Update imminent

2 Mount Si Elevations: 2 Forecast Elevations:

	Days 1–3 Weather Summary Light rain (total 3mm), mostly falling on Fri morning. Warm (max 25°C on Thu afternoon, min 15°C on Fri night). Wind will be generally light.									Days 4–6 Weather Summary Mostly dry. Warm (max 24°C on Mon afternoon, min 12°C on Tue night). Wind will be generally light.
	Thursday 13			Friday 14			Saturday 15			Sunday 16			Monday 17			Tuesday 18
	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	risk tstorm	clear	clear	clear	cloudy	clear	clear	clear	clear	clear	clear	clear	some clouds
Cloud base (m)	3450	3300	2500	1600	2750				9550	7000		9300	9050		9250	7000	6700	700
km/h	NW	NW	ESE	WSW	NW	ESE	NW	WNW	E	NW	NW	ENE	NW	NW	E	W	W	ENE
See all weather maps
cm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
mm	—	—	1.1	1.7	0.1	0.2	—	—	—	—	—	—	—	—	—	—	—	—
max °C	21	25	20	20	24	21	20	24	21	19	23	20	20	24	20	18	22	18
min °C	17	24	16	17	22	15	16	23	15	16	22	15	17	23	14	15	20	12
chill °C	17	24	16	17	22	15	16	23	15	16	22	15	17	23	14	15	20	12

Freezing level m	3500	3600	3450	3500	3600	3650	3750	3850	3800	3750	3900	4050	4050	4100	4050	3950	3950	4250

	5:58	—	—	6:01	—	—	6:01	—	—	6:03	—	—	6:05	—	—	6:05	—	—
	—	—	8:22	—	—	8:21	—	—	8:19	—	—	8:16	—	—	8:15	—	—	8:14

Mount Si Weather (Days 0-3):

The weather forecast for Mount Si is: Light rain (total 3mm), mostly falling on Fri morning. Warm (max 25°C on Thu 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 12°C on Tue 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	15° C	Dry	Calm (0 kph at 131).
Renton Airport 36 km WSW 218m alt. 3 hours ago	16° C	Haze -.	Light winds from the SSE (7 kph at 150).	10 km
Auburn 39 km SW 119m alt. 1 hour ago		-	Calm (2 kph at 215).
SHIP7155 42 km WSW 3m alt. 2 hours ago	16° C		Calm (4 kph at 220).
SHIP11460 42 km WSW 15m alt. 2 hours ago			Calm (4 kph at 220).	- km
SHIP3105 42 km WSW 3m alt. 3 hours ago	15° C		Calm (4 kph at 200).
SHIP6732 42 km WSW 3m alt. 3 hours ago	15° C		Calm (4 kph at 200).
SHIP7258 42 km WSW 15m alt. 3 hours ago			Calm (4 kph at 200).	- km
SHIP8039 42 km WSW 15m alt. 1 hour ago			Calm (6 kph at 150).	- km
SHIP10990 42 km WSW 3m alt. 3 hours ago	15° C		Calm (4 kph at 200).

* 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.