– Lat/Long: 47.51° N 121.74° W

Mount Si
Weather Forecast, United States
Issued: 4 pm Thu 23 Apr Local Time
Updates in:
hr min s
Update imminent

Issued: 4 pm Thu 23 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 14°C on Sat afternoon, min 4°C on Thu night). Wind will be generally light.											Days 5–7 Weather Summary Light rain (total 3mm), mostly falling on Sun night. Very mild (max 15°C on Sun afternoon, min 5°C on Mon night). Wind will be generally light.
	Thu 23		Friday 24			Saturday 25			Sunday 26			Monday 27			Tuesday 28
	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	rain shwrs	rain shwrs	clear	some clouds	some clouds	clear	clear	rain shwrs	rain shwrs	clear	rain shwrs	light rain	light rain	light rain	light rain	rain shwrs	rain shwrs
km/h	NNW	ENE	N	NNW	E	WNW	NW	E	WNW	WNW	SSW	SW	SW	SW	WSW	NW	E
See all weather maps
cm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
mm	0.2	0.1	—	—	—	—	—	0.1	0.1	—	1.1	0.1	0.4	0.7	0.2	0.2	0.1
max °C	8	7	11	13	9	12	14	10	12	15	11	7	7	6	5	9	8
min °C	6	4	8	12	6	9	13	7	9	14	6	6	7	5	5	7	6
chill °C	6	3	7	11	6	9	12	7	9	13	4	5	5	4	4	7	6

Freezing level m	1450	1650	1750	1950	1900	1900	2100	2000	1900	2100	1950	1450	1500	1250	1300	1500	2200
Cloud base (m)	550	900			6700			6850		2300	2400	500	500	500	500	550

	—	—	6:01	—	—	6:00	—	—	5:58	—	—	5:56	—	—	5:54	—	—
	—	8:07	—	—	8:07	—	—	8:09	—	—	8:10	—	—	8:12	—	—	8:14

Mount Si Weather (Days 0-3):

The weather forecast for Mount Si is: Mostly dry. Very mild (max 14°C on Sat afternoon, min 4°C on Thu night). Wind will be generally light.

Mount Si Weather (Days 3-6):

Light rain (total 3mm), mostly falling on Sun night. Very mild (max 15°C on Sun afternoon, min 5°C on Mon 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	12° C	Dry	Calm (0 kph at 336).
Snoqualmie Pass 30 km ESE 824m alt. 48 minutes ago	5° C	-	Calm (0 kph at 138).
Renton 30 km WSW 160m alt. 2 hours ago	13° C	Dry	Calm (0 kph at 60).
Black Diamond 32 km SSW 192m alt. 2 hours ago		-	Calm (3 kph at 0).
Grotto wx 35 km NE 321m alt. 2 hours ago	9° C	Dry	Calm (2 kph at 270).
Renton Airport 36 km WSW 218m alt. 2 hours ago	13° C	Clear	Light winds from the NNW (6 kph at 330).	16 km
Grotto wx 39 km NE 1101m alt. 1 hour ago	3° C	Dry	Calm (0 kph at 43).
Auburn 39 km SW 119m alt. 1 hour ago	17° C	Dry	Calm (0 kph at 273).
Stampede Pass Airport 40 km SE 628m alt. 1 hour ago	2° C	-	Wind obs. (9 kph from 1 degs) was rejected.	0.0 km High: broken
Woodinville 43 km WNW 137.2m alt. 2 hours ago	8° C	Dry	Wind obs. (18 kph from 293 degs) was rejected.

* 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.