– Lat/Long: 47.51° N 121.74° W

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

Issued: 4 am Thu 23 Apr Local Time

Updates in:

hr min s

Update imminent

2 Mount Si Elevations: 2 Forecast Elevations:

	Days 1–3 Weather Summary Mostly dry. Freeze-thaw conditions (max 7°C on Sat afternoon, min 0°C on Thu morning). Wind will be generally light.									Days 4–6 Weather Summary Light rain (total 9mm), mostly falling on Sun afternoon. Mild temperatures (max 8°C on Tue night, min 1°C on Mon morning). Wind will be generally light.
	Thursday 23			Friday 24			Saturday 25			Sunday 26			Monday 27			Tuesday 28
	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	cloudy	rain shwrs	clear	clear	some clouds	some clouds	clear	clear	rain shwrs	some clouds	rain shwrs	rain shwrs	cloudy	light rain	light rain	rain shwrs	rain shwrs	rain shwrs
km/h	WSW	NW	NE	NE	NNW	N	WNW	NW	W	W	W	SW	SW	WSW	WSW	NW	NNW	E
See all weather maps
cm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
mm	—	0.1	—	—	—	—	—	—	0.2	—	4	3	—	0.2	0.2	0.1	0.3	0.1
max °C	0	3	3	5	6	5	5	7	6	5	5	4	2	2	2	2	4	8
min °C	0	2	2	4	6	5	5	7	5	4	5	2	1	2	2	2	4	4
chill °C	-4	0	2	2	4	3	5	5	4	2	2	-2	-3	-1	-2	0	3	3

Freezing level m	1350	1750	1700	1850	2100	2000	1950	2100	2000	1850	2000	1700	1500	1650	1700	1650	2150	2650
Cloud base (m)	450	650	1650		6800	6250		2100		2650	1600	1500	750	700	450	500	800	9150

	6:03	—	—	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. Freeze-thaw conditions (max 7°C on Sat afternoon, min 0°C on Thu morning). Wind will be generally light.

Mount Si Weather (Days 3-6):

Light rain (total 9mm), mostly falling on Sun afternoon. Mild temperatures (max 8°C on Tue night, min 1°C on Mon morning). 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. 38 minutes ago	12° C	Dry	Calm (0 kph at 36).
Snoqualmie Pass 30 km ESE 824m alt. 36 minutes ago	4° C	-	Calm (5 kph at 188).
Renton 30 km WSW 160m alt. 2 hours ago	9° C	Dry	Calm (3 kph at 215).
Grotto wx 35 km NE 321m alt. 57 minutes ago	7° C	Dry	Calm (3 kph at 247).
Renton Airport 36 km WSW 218m alt. 2 hours ago	10° C	Dry and cloudy.	Light winds from the S (9 kph at 180).	16 km Low: overcast
Grotto wx 39 km NE 1101m alt. 2 hours ago	1° C	-	Calm (2 kph at 99).
Auburn 39 km SW 119m alt. 56 minutes ago	21° C	Dry	Calm (3 kph at 338).
Woodinville 43 km WNW 137.2m alt. 33 minutes ago	8° C	Dry	Wind obs. (18 kph from 285 degs) was rejected.
Seattl / oeing Airport 44 km WSW 218m alt. 2 hours ago	10° C	Dry and cloudy.	Light winds from the S (13 kph at 170).	16 km Low: overcast
Seattle Tacoma International Airport 44 km WSW 218m alt. 2 hours ago	9° C	Dry and cloudy.	Light winds from the S (13 kph at 190).	16 km Low: broken Mid: overcast

* 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.