– Lat/Long: 47.51° N 121.74° W

Mount Si
Weather Forecast, United States
Issued: 9 pm Tue 13 Jan Local Time
Updates in:
hr min s
Update imminent

Issued: 9 pm Tue 13 Jan Local Time

Updates in:

hr min s

Update imminent

2 Mount Si Elevations: 2 Forecast Elevations:

	Days 1–4 Weather Summary Mostly dry. Very mild (max 13°C on Fri morning, min 6°C on Wed afternoon). Wind will be generally light.										Days 5–7 Weather Summary Mostly dry. Very mild (max 12°C on Sat morning, min 7°C on Sun afternoon). Wind will be generally light.
		Wednesday 14			Thursday 15			Friday 16			Saturday 17			Sunday 18			Monday 19
	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	clear	clear	clear	clear	clear	clear	clear	clear	clear	clear	clear	clear	clear	clear	clear	clear	clear	clear	clear
km/h	SW	WSW	WNW	N	NNW	E	ESE	ENE	E	ESE	SE	SW	W	NW	NNE	ESE	NE	N	NNW
See all weather maps
cm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
mm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
max °C	12	10	8	8	11	11	11	13	12	11	12	11	9	8	8	9	11	11	11
min °C	10	9	6	6	10	10	11	12	11	10	11	10	8	8	7	8	10	10	10
chill °C	8	7	3	3	9	9	9	12	10	10	11	10	8	7	6	6	10	10	10

Freezing level m	3700	3400	3200	3550	3650	3600	3700	3850	3950	3850	3650	3650	3350	3300	3350	3200	3300	3300	3450
Cloud base (m)			600	550

	—	7:50	—	—	7:48	—	—	7:48	—	—	7:48	—	—	7:47	—	—	7:46	—	—
	—	—	4:42	—	—	4:43	—	—	4:44	—	—	4:45	—	—	4:46	—	—	4:49	—

Mount Si Weather (Days 0-3):

The weather forecast for Mount Si is: Mostly dry. Very mild (max 13°C on Fri morning, min 6°C on Wed afternoon). Wind will be generally light.

Mount Si Weather (Days 3-6):

Mostly dry. Very mild (max 12°C on Sat morning, min 7°C on Sun afternoon). Wind will be generally light.

This table gives the weather forecast for Mount Si at the specific elevation of 1270 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. 1 hour ago	9° C	Dry	Calm (0 kph at 348).
Black Diamond 32 km SSW 192m alt. 45 minutes ago	7° C	Dry	Calm (0 kph at 0).
Renton Airport 36 km WSW 218m alt. 2 hours ago	11° C	Dry and cloudy.	Calm (0 kph at 0).	16 km Low: scattered Mid: overcast
Auburn 39 km SW 119m alt. 37 minutes ago	-1° C	-	Calm (0 kph at 153).
Stampede Pass Airport 40 km SE 628m alt. 2 hours ago	4° C	Moderate rain .	Calm (0 kph at 0).	16 km
SHIP8168 43 km W 15m alt. 2 hours ago				- km
SHIP4755 43 km W 15m alt. 2 hours ago				- km
SHIP3008 43 km W 15m alt. 2 hours ago				- km
SHIP9000 43 km W 15m alt. 3 hours ago				- km
SHIP3948 43 km W 15m alt. 1 hour 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.