– Lat/Long: 47.51° N 121.74° W

Mount Si
Weather Forecast, United States
Issued: 10 am Mon 06 Apr Local Time
Updates in:
hr min s
Update imminent

Issued: 10 am Mon 06 Apr Local Time

Updates in:

hr min s

Update imminent

2 Mount Si Elevations: 2 Forecast Elevations:

	Days 1–3 Weather Summary Some drizzle, heaviest during Mon afternoon. Very mild (max 18°C on Mon afternoon, min 2°C on Tue morning). Wind will be generally light.									Days 4–6 Weather Summary Mostly dry. Very mild (max 16°C on Fri afternoon, min 4°C on Sat night). Wind will be generally light.
	Monday 6			Tuesday 7			Wednesday 8			Thursday 9			Friday 10			Saturday 11
	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	clear	risk tstorm	rain shwrs	rain shwrs	clear	clear	clear	clear	clear	clear	clear	clear	clear	clear	clear	clear	clear	clear
km/h	WSW	W	SW	WSW	NW	E	WNW	WNW	ENE	NNW	NW	ESE	W	WNW	SE	WSW	W	SSW
See all weather maps
cm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
mm	—	0.8	0.2	0.1	—	—	—	—	—	—	—	—	—	—	—	—	—	—
max °C	17	18	11	3	8	6	8	11	7	11	14	10	14	16	12	12	14	10
min °C	13	16	3	2	7	3	5	10	5	7	14	9	10	16	8	9	14	4
chill °C	13	16	0	0	6	3	5	9	4	7	14	8	10	16	8	9	14	4

Freezing level m	2850	2750	1350	900	1450	1250	1800	2050	2150	2350	2550	2750	2900	2950	2900	2600	2500	1950
Cloud base (m)	8250	1700	400	450	500	7000										7000	2000	1850

	6:35	—	—	6:33	—	—	6:31	—	—	6:30	—	—	6:28	—	—	6:26	—	—
	—	7:43	—	—	7:44	—	—	7:45	—	—	7:46	—	—	7:49	—	—	7:50	—

Mount Si Weather (Days 0-3):

The weather forecast for Mount Si is: Some drizzle, heaviest during Mon afternoon. Very mild (max 18°C on Mon afternoon, min 2°C on Tue morning). Wind will be generally light.

Mount Si Weather (Days 3-6):

Mostly dry. Very mild (max 16°C on Fri afternoon, min 4°C on Sat 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	21° C	Dry	Calm (0 kph at 182).
Snoqualmie Pass 30 km ESE 824m alt. 40 minutes ago	17° C	-	Calm (0 kph at 221).
Renton 30 km WSW 160m alt. 2 hours ago	22° C	Dry	Calm (5 kph at 293).
Black Diamond 32 km SSW 192m alt. 2 hours ago		-	Calm (2 kph at 0).
Grotto wx 35 km NE 321m alt. 56 minutes ago	23° C	Dry	Light winds from the W (18 kph at 272).
Renton Airport 36 km WSW 218m alt. 2 hours ago	22° C	Clear	Light winds from the SW (11 kph at 220).	16 km
Grotto wx 39 km NE 1101m alt. 1 hour ago	17° C	Dry	Calm (3 kph at 229).
Auburn 39 km SW 119m alt. 39 minutes ago	21° C	Dry	Wind obs. (8 kph from 279 degs) was rejected.
Stampede Pass Airport 40 km SE 628m alt. 2 hours ago	15° C	Clear	Light winds from the WSW.(Wind varies from 180 to 330 degs) (13 kph at 250).	16 km
SHIP7403 42 km WSW 15m alt. 2 hours ago				- 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.