– Lat/Long: 47.51° N 121.74° W

Mount Si
Weather Forecast, United States
Issued: 10 pm Tue 07 Apr Local Time
Updates in:
hr min s
Update imminent

Issued: 10 pm Tue 07 Apr 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 16°C on Thu afternoon, min 4°C on Tue night). Wind will be generally light.										Days 5–7 Weather Summary Light rain (total 9mm), mostly falling on Sat afternoon. Very mild (max 13°C on Fri night, min 3°C on Sun night). Wind will be generally light.
		Wednesday 8			Thursday 9			Friday 10			Saturday 11			Sunday 12			Monday 13
	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	some clouds	light rain	light rain	light rain	some clouds	light rain	light rain	light rain	light rain	rain shwrs	light rain
km/h	ESE	W	WNW	E	NNE	NW	ESE	WSW	WNW	W	WNW	ENE	SW	WSW	WSW	SW	SW	WSW	SW
See all weather maps
cm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
mm	—	—	—	—	—	—	—	—	—	0.2	0.3	5	—	0.2	0.5	1.1	1.6	0.5	1.2
max °C	6	9	12	8	13	16	12	15	16	13	9	7	7	7	7	7	4	7	6
min °C	4	6	12	6	8	15	10	12	16	10	9	7	7	7	7	3	3	5	4
chill °C	4	6	12	5	8	15	10	12	16	10	9	6	7	6	6	0	1	5	2

Freezing level m	1800	2050	2200	2500	2600	2750	2800	2700	2700	2450	2200	2000	1900	1600	1550	1050	1100	1350	1100
Cloud base (m)			8500					3400	3050	2000	400	350	850	400	450	400	450	500	450

	—	6:31	—	—	6:30	—	—	6:28	—	—	6:26	—	—	6:24	—	—	6:22	—	—
	—	—	7:45	—	—	7:46	—	—	7:49	—	—	7:50	—	—	7:51	—	—	7:52	—

Mount Si Weather (Days 0-3):

The weather forecast for Mount Si is: Mostly dry. Very mild (max 16°C on Thu afternoon, min 4°C on Tue night). Wind will be generally light.

Mount Si Weather (Days 3-6):

Light rain (total 9mm), mostly falling on Sat afternoon. Very mild (max 13°C on Fri night, min 3°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 10 closest weather stations

Weather Station	Temp.	Weather	Wind	Cloud Visibility Cloud / Visibility
Harman Heights wx 6 km SSW 251m alt. 1 hour ago	2° C	-	Calm (0 kph at 20).
Snoqualmie Pass 30 km ESE 824m alt. 30 minutes ago	-3° C	-	Calm (0 kph at 107).
Renton 30 km WSW 160m alt. 1 hour ago	3° C	Dry	Calm (0 kph at 39).
Black Diamond 32 km SSW 192m alt. 1 hour ago		-	Calm (0 kph at 0).
Grotto wx 35 km NE 321m alt. 1 hour ago	2° C	-	Calm (3 kph at 71).
Renton Airport 36 km WSW 218m alt. 2 hours ago	4° C	Clear	Calm (0 kph at 0).	16 km
Grotto wx 39 km NE 1101m alt. 40 minutes ago	-3° C	-	Calm (0 kph at 341).
Auburn 39 km SW 119m alt. 58 minutes ago	3° C	Dry	Calm (0 kph at 90).
Stampede Pass Airport 40 km SE 628m alt. 2 hours ago	-1° C	Clear	Calm (0 kph at 0).	16 km
Woodinville 43 km WNW 137.2m alt. 35 minutes ago	-3° C	-	Calm (0 kph at 280).

* 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.