– Lat/Long: 47.51° N 121.74° W

Mount Si
Weather Forecast, United States
Issued: 4 pm Fri 24 Apr Local Time
Updates in:
hr min s
Update imminent

Issued: 4 pm Fri 24 Apr Local Time

Updates in:

hr min s

Update imminent

2 Mount Si Elevations: 2 Forecast Elevations:

	Days 1–4 Weather Summary Some drizzle, heaviest during Sun night. Mild temperatures (max 7°C on Sun afternoon, min 1°C on Mon morning). Wind will be generally light.											Days 5–7 Weather Summary Mostly dry. Freeze-thaw conditions (max 9°C on Wed night, min 0°C on Mon night). Wind will be generally light.
	Fri 24		Saturday 25			Sunday 26			Monday 27			Tuesday 28			Wednesday 29
	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	some clouds	clear	clear	some clouds	clear	clear	clear	rain shwrs	cloudy	cloudy	some clouds	cloudy	rain shwrs	rain shwrs	clear	clear	some clouds
km/h	N	N	NNW	NNW	N	NW	NW	SSW	SW	SW	SW	SW	WNW	N	E	NNW	ESE
See all weather maps
cm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
mm	—	—	—	—	—	—	—	1.1	—	—	—	—	0.1	0.1	—	—	—
max °C	4	5	4	6	5	5	7	6	1	1	1	0	2	2	5	8	9
min °C	4	4	4	6	4	5	7	3	1	1	0	0	1	1	3	8	8
chill °C	0	2	4	4	3	3	4	-1	-4	-5	-5	-4	-2	-2	1	7	6

Freezing level m	1850	1850	1800	1950	1900	1900	2100	1900	1450	1400	1250	1350	1550	1550	2050	2500	2750
Cloud base (m)	6900			2400		3150	2650	2450	500	450	500	450	500	750	1900	2250

	—	—	6:00	—	—	5:58	—	—	5:56	—	—	5:54	—	—	5:52	—	—
	—	8:07	—	—	8:09	—	—	8:10	—	—	8:12	—	—	8:14	—	—	8:15

Mount Si Weather (Days 0-3):

The weather forecast for Mount Si is: Some drizzle, heaviest during Sun night. Mild temperatures (max 7°C on Sun afternoon, min 1°C on Mon morning). Wind will be generally light.

Mount Si Weather (Days 3-6):

Mostly dry. Freeze-thaw conditions (max 9°C on Wed night, min 0°C on Mon night). 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	13° C	Dry	Calm (0 kph at 330).
Snoqualmie Pass 30 km ESE 824m alt. 1 hour ago	8° C	-	Calm (0 kph at 30).
Renton 30 km WSW 160m alt. 1 hour ago	16° C	Dry	Calm (3 kph at 337).
Black Diamond 32 km SSW 192m alt. 1 hour ago		-	Light winds from the N (8 kph at 0).
Grotto wx 35 km NE 321m alt. 51 minutes ago	12° C	Dry	Calm (2 kph at 176).
Renton Airport 36 km WSW 218m alt. 3 hours ago	17° C	Clear	Light winds from the N (17 kph at 350).	16 km
Grotto wx 39 km NE 1101m alt. 1 hour ago	3° C	Dry	Calm (0 kph at 352).
Auburn 39 km SW 119m alt. 1 hour ago	21° C	Dry	Calm (0 kph at 257).
Stampede Pass Airport 40 km SE 628m alt. 3 hours ago	8° C	Dry and cloudy.	Calm (0 kph at 0).	16 km Low: overcast
Woodinville 43 km WNW 137.2m alt. 2 hours ago	10° C	Dry	Wind obs. (6 kph from 130 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.