– Lat/Long: 47.51° N 121.74° W

Mount Si
Weather Forecast, United States
Issued: 9 pm Sun 01 Feb Local Time
Updates in:
hr min s
Update imminent

Issued: 9 pm Sun 01 Feb Local Time

Updates in:

hr min s

Update imminent

2 Mount Si Elevations: 2 Forecast Elevations:

	Days 1–4 Weather Summary Light rain (total 8mm), mostly falling on Mon morning. Very mild (max 17°C on Wed morning, min 5°C on Sun night). Wind will be generally light.										Days 5–7 Weather Summary Mostly dry. Very mild (max 17°C on Thu morning, min 7°C on Fri night). Wind will be generally light.
		Monday 2			Tuesday 3			Wednesday 4			Thursday 5			Friday 6			Saturday 7
	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	rain shwrs	light rain	light rain	light rain	some clouds	some clouds	some clouds	clear	clear	clear	clear	clear	clear	some clouds	some clouds	clear	clear	clear	cloudy
km/h	S	SSE	SW	SSE	SE	SE	SE	SE	SE	ESE	ESE	ESE	SE	SSW	W	SE	S	WSW	S
See all weather maps
cm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
mm	0.1	5	2	0.3	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
max °C	6	5	8	9	13	11	9	17	15	9	17	15	9	14	13	9	12	12	9
min °C	5	5	7	8	10	9	8	13	10	9	13	10	9	12	9	7	11	8	8
chill °C	4	3	6	8	10	8	7	13	9	8	12	8	8	12	9	6	11	8	8

Freezing level m	1450	1400	2150	2500	2950	3150	3200	3250	3400	3600	3850	3900	3300	2950	2950	2850	2750	2550	2400
Cloud base (m)	2000	1600	450	500	6900	5700	4850	9250				8800	6250	8700			9450	9350	2750

	—	7:31	—	—	7:30	—	—	7:28	—	—	7:26	—	—	7:26	—	—	7:24	—	—
	—	—	5:09	—	—	5:10	—	—	5:13	—	—	5:14	—	—	5:15	—	—	5:17	—

Mount Si Weather (Days 0-3):

The weather forecast for Mount Si is: Light rain (total 8mm), mostly falling on Mon morning. Very mild (max 17°C on Wed morning, min 5°C on Sun night). Wind will be generally light.

Mount Si Weather (Days 3-6):

Mostly dry. Very mild (max 17°C on Thu morning, min 7°C on Fri 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
Harman Heights wx 6 km SSW 251m alt. 2 hours ago	9° C	Dry	Calm (0 kph at 39).
Black Diamond 32 km SSW 192m alt. 2 hours ago	9° C	Dry	Calm (0 kph at 0).
Renton Airport 36 km WSW 218m alt. 2 hours ago	7° C	Clear	Light winds from the SSE (9 kph at 150).	16 km
Auburn 39 km SW 119m alt. 2 hours ago	-5° C	-	Calm (0 kph at 201).
Stampede Pass Airport 40 km SE 628m alt. 2 hours ago	1° C	Moderate rain .	Calm (0 kph at 0).	3 km Mid: few High: broken
SHIP8974 43 km W 15m alt. 3 hours ago			Calm (6 kph at 180).	- km
SHIP11691 43 km W 15m alt. 3 hours ago			Calm (6 kph at 180).	- km
SHIP11026 43 km W 3m alt. 2 hours ago	7° C		Calm (5 kph at 190).
SHIP3732 43 km W 15m alt. 3 hours ago			Calm (6 kph at 180).	- km
SHIP6433 43 km W 15m alt. 3 hours ago			Calm (6 kph at 190).	- 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.