– Lat/Long: 47.51° N 121.74° W

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

Issued: 10 am Thu 10 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 24°C on Fri afternoon, min 12°C on Thu morning). Wind will be generally light.									Days 4–6 Weather Summary Mostly dry. Warm (max 30°C on Tue afternoon, min 12°C on Sun night). Wind will be generally light.
	Thursday 10			Friday 11			Saturday 12			Sunday 13			Monday 14			Tuesday 15
	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	some clouds	clear	clear	clear	clear	clear	clear	clear	clear	clear	clear	clear	some clouds	clear	clear	clear	clear	clear
km/h	W	NW	ENE	NW	NNW	NNE	NNW	NNW	NNE	NW	NW	NNW	NW	NW	ESE	SE	NNW	ESE
See all weather maps
cm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
mm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
max°C	14	19	17	20	24	20	20	23	21	22	26	22	16	23	21	26	30	25
min°C	12	17	12	16	23	15	17	22	16	19	25	12	14	20	17	22	29	20
chill°C	12	17	12	16	23	15	17	22	16	19	25	12	14	20	17	22	29	20

Freezing level (m)	3400	3950	4200	4350	4300	4650	4500	4750	4800	4600	4600	4600	4400	4550	4150	3950	4200	4350
Cloud base (m)	900	2100		9650	9750	8400	800			7250			500

	5:20	—	—	5:20	—	—	5:20	—	—	5:22	—	—	5:22	—	—	5:24	—	—
	—	—	9:02	—	—	9:02	—	—	9:01	—	—	9:00	—	—	9:00	—	—	9:00

Mount Si Weather (Days 0-3):

The weather forecast for Mount Si is: Mostly dry. Warm (max 24°C on Fri afternoon, min 12°C on Thu morning). Wind will be generally light.

Mount Si Weather (Days 3-6):

Mostly dry. Warm (max 30°C on Tue afternoon, min 12°C on Sun 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 5 closest weather stations

Weather Station	Temp.	Weather	Wind	Cloud Visibility Cloud / Visibility
Harman Heights wx 6 km SSW 251m alt. 53 minutes ago	23° C	Dry	Calm (0 kph at 263).
Black Diamond 32 km SSW 192m alt. 52 minutes ago		-	Light winds from the WNW (10 kph at 295).
Renton Airport 36 km WSW 218m alt. 1 hour ago	21° C	Clear	Light winds from the NNW (17 kph at 340).	16 km
Auburn 39 km SW 119m alt. 41 minutes ago		-	Calm (0 kph at 179).
Stampede Pass Airport 40 km SE 628m alt. 2 hours ago	13° C	Dry and partly cloudy.	Light winds from the N (7 kph at 1).	16 km Low: scattered Mid: broken
SHIP4000 43 km W 15m alt. 3 hours ago				- km
SHIP3428 43 km W 15m alt. 1 hour ago				- km
SHIP9242 43 km W 15m alt. 3 hours ago				- km
SHIP3472 43 km W 15m alt. 1 hour ago				- km
SHIP7844 43 km W 15m alt. 2 hours ago				- 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.