– Lat/Long: 47.51° N 121.74° W

Mount Si
Weather Forecast, United States
Issued: 10 am Mon 01 Jun Local Time
Updates in:
hr min s
Update imminent

Issued: 10 am Mon 01 Jun Local Time

Updates in:

hr min s

Update imminent

2 Mount Si Elevations: 2 Forecast Elevations:

	Days 1–3 Weather Summary Mostly dry. Warm (max 25°C on Tue afternoon, min 9°C on Wed night). Wind will be generally light.									Days 4–6 Weather Summary Moderate rain (total 10mm), heaviest on Fri night. Very mild (max 15°C on Thu afternoon, min 5°C on Fri night). Wind will be generally light.
	Monday 1			Tuesday 2			Wednesday 3			Thursday 4			Friday 5			Saturday 6
	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	some clouds	some clouds	some clouds	clear	clear	rain shwrs	light rain	some clouds	rain shwrs	light rain	rain shwrs	clear	some clouds	light rain	rain shwrs	rain shwrs	rain shwrs	rain shwrs
km/h	NW	NW	ESE	SSW	WNW	SSE	WSW	SW	SW	SW	W	S	WSW	SW	SW	WSW	WNW	WNW
See all weather maps
cm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
mm	—	—	—	—	—	0.1	0.4	—	0.2	0.4	0.1	—	—	1.2	4	0.9	2	1.5
max °C	17	20	17	23	25	22	17	18	14	10	15	14	12	9	7	9	11	9
min °C	14	20	14	19	25	14	13	15	9	9	13	6	9	7	5	7	10	6
chill °C	14	20	14	19	25	14	13	14	9	8	13	5	8	4	3	6	10	6

Freezing level m	2850	3200	3050	3200	3450	3300	2700	2550	3000	3150	3050	2600	2050	1600	1450	1600	1750	1500
Cloud base (m)	7100	6700	3200	7150			2100	2350	600	500	750	400	2350	750	450	800	1550	500

	5:13	—	—	5:13	—	—	5:11	—	—	5:11	—	—	5:11	—	—	5:11	—	—
	—	—	8:55	—	—	8:57	—	—	8:57	—	—	8:58	—	—	8:59	—	—	9:00

Mount Si Weather (Days 0-3):

The weather forecast for Mount Si is: Mostly dry. Warm (max 25°C on Tue afternoon, min 9°C on Wed night). Wind will be generally light.

Mount Si Weather (Days 3-6):

Moderate rain (total 10mm), heaviest on Fri night. Very mild (max 15°C on Thu afternoon, min 5°C on Fri 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. 31 minutes ago	24° C	Dry	Calm (0 kph at 3).
Snoqualmie Pass 30 km ESE 824m alt. 55 minutes ago	23° C	-	Calm (0 kph at 245).
Renton 30 km WSW 160m alt. 39 minutes ago	21° C	Dry	Calm (3 kph at 311).
Black Diamond 32 km SSW 192m alt. 42 minutes ago		-	Wind obs. (8 kph from 132 degs) was rejected.
Grotto wx 35 km NE 321m alt. 58 minutes ago	20° C	Dry	Light winds from the W (18 kph at 269).
Renton Airport 36 km WSW 218m alt. 2 hours ago	18° C	Clear	Light winds from the NW (11 kph at 320).	16 km
Grotto wx 39 km NE 1101m alt. 1 hour ago	19° C	Dry	Calm (3 kph at 188).
Auburn 39 km SW 119m alt. 42 minutes ago		-	Calm (0 kph at 202).
Stampede Pass Airport 40 km SE 628m alt. 2 hours ago	15° C	-	Wind obs. (7 kph from 1 degs) was rejected.	16 km Low: few
SHIP4408 42 km WSW 15m alt. 3 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.