– Lat/Long: 47.51° N 121.74° W

Mount Si
Weather Forecast, United States
Issued: 10 am Mon 08 Jun Local Time
Updates in:
hr min s
Update imminent

Issued: 10 am Mon 08 Jun Local Time

Updates in:

hr min s

Update imminent

2 Mount Si Elevations: 2 Forecast Elevations:

	Days 1–3 Weather Summary Heavy rain (total 73mm), heaviest during Mon night. Very mild (max 16°C on Mon morning, min 7°C on Tue night). Winds decreasing (fresh winds from the SW on Mon night, calm by Wed night).									Days 4–6 Weather Summary Mostly dry. Warm (max 25°C on Sat afternoon, min 11°C on Thu morning). Wind will be generally light.
	Monday 8			Tuesday 9			Wednesday 10			Thursday 11			Friday 12			Saturday 13
	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	cloudy	light rain	heavy rain	heavy rain	rain shwrs	light rain	rain shwrs	rain shwrs	clear	clear	clear	clear	clear	clear	clear	clear	clear	clear
km/h	SE	ESE	S	SW	WSW	WSW	W	NNW	ENE	NW	NW	ENE	NW	NNW	NE	NNE	NNW	ESE
See all weather maps
cm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
mm	—	1.8	37	23	4	4	1.6	2	—	—	—	—	—	—	—	—	—	—
max °C	16	15	11	9	10	8	8	12	12	15	18	15	18	21	18	22	25	22
min °C	13	12	10	9	10	7	7	10	7	11	18	11	15	20	13	18	25	19
chill °C	13	10	8	7	7	4	5	9	7	11	18	11	15	20	13	18	25	19

Freezing level m	2450	2500	2350	1900	1900	1600	1650	2250	3400	3250	3400	3500	3850	4050	4150	4100	4200	4250
Cloud base (m)	2600	2100	350	400	600	400	450	850			8950	9200			9700	9100	9050	9050

	5:09	—	—	5:09	—	—	5:09	—	—	5:09	—	—	5:09	—	—	5:09	—	—
	—	—	9:00	—	—	9:01	—	—	9:02	—	—	9:02	—	—	9:04	—	—	9:04

Mount Si Weather (Days 0-3):

The weather forecast for Mount Si is: Heavy rain (total 73mm), heaviest during Mon night. Very mild (max 16°C on Mon morning, min 7°C on Tue night). Winds decreasing (fresh winds from the SW on Mon night, calm by Wed night).

Mount Si Weather (Days 3-6):

Mostly dry. Warm (max 25°C on Sat afternoon, min 11°C on Thu morning). 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	17° C	Dry	Calm (0 kph at 333).
Snoqualmie Pass 30 km ESE 824m alt. 45 minutes ago	13° C	-	Calm (0 kph at 258).
Renton 30 km WSW 160m alt. 1 hour ago	17° C	Dry	Calm (0 kph at 184).
Black Diamond 32 km SSW 192m alt. 1 hour ago		-	Wind obs. (6 kph from 292 degs) was rejected.
Grotto wx 35 km NE 321m alt. 2 hours ago	16° C	Dry	Calm (5 kph at 243).
Renton Airport 36 km WSW 218m alt. 1 hour ago	17° C	Dry and cloudy.	Light winds from the SW (7 kph at 230).	16 km Low: overcast
Grotto wx 39 km NE 1101m alt. 48 minutes ago	10° C	Dry	Calm (2 kph at 180).
Auburn 39 km SW 119m alt. 1 hour ago		-	Calm (5 kph at 267).
Stampede Pass Airport 40 km SE 628m alt. 3 hours ago	10° C	Dry and cloudy.	Wind obs. (6 kph from 1 degs) was rejected.	16 km Low: broken Mid: overcast
SHIP6744 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.