– Lat/Long: 47.51° N 121.74° W

Mount Si
Weather Forecast, United States
Issued: 4 am Mon 08 Jun Local Time
Updates in:
hr min s
Update imminent

Issued: 4 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 58mm), heaviest during Mon night. Very mild (max 15°C on Mon morning, min 7°C on Tue night). Wind will be generally light.									Days 4–6 Weather Summary Mostly dry. Warm (max 22°C on Sat afternoon, min 10°C on Thu night). 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	ESE	ESE	SSE	WSW	WSW	WSW	WNW	NW	ENE	NW	NW	NE	NW	NW	NE	NW	NNW	ESE
See all weather maps
cm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
mm	—	1.1	32	14	4	4	1.6	0.7	—	—	—	—	—	—	—	—	—	—
max °C	15	15	10	9	10	9	9	13	12	15	18	15	18	21	18	19	22	20
min °C	12	12	9	9	10	7	7	12	7	11	17	10	14	20	12	15	22	17
chill °C	12	11	7	8	7	4	6	11	7	11	17	10	14	20	12	15	22	17

Freezing level m	2350	2450	2350	1950	1950	1500	1750	2900	3400	3300	3450	3750	3800	3950	4050	4050	4100	4100
Cloud base (m)	2750	2250	350	400	550	400	500	950			9200			9500	9550		6900

	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 58mm), heaviest during Mon night. Very mild (max 15°C on Mon morning, min 7°C on Tue night). Wind will be generally light.

Mount Si Weather (Days 3-6):

Mostly dry. Warm (max 22°C on Sat afternoon, min 10°C on Thu 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	10° C	Dry	Calm (0 kph at 348).
Snoqualmie Pass 30 km ESE 824m alt. 1 hour ago	5° C	-	Calm (0 kph at 159).
Renton 30 km WSW 160m alt. 1 hour ago	12° C	Dry	Calm (0 kph at 61).
Black Diamond 32 km SSW 192m alt. 1 hour ago		-	Calm (3 kph at 0).
Grotto wx 35 km NE 321m alt. 2 hours ago	7° C	Dry	Calm (5 kph at 75).
Renton Airport 36 km WSW 218m alt. 3 hours ago	11° C	Dry and cloudy.	Calm (0 kph at 0).	16 km Low: overcast
Grotto wx 39 km NE 1101m alt. 1 hour ago	6° C	Dry	Calm (0 kph at 348).
Auburn 39 km SW 119m alt. 1 hour ago		-	Calm (0 kph at 51).
Stampede Pass Airport 40 km SE 628m alt. 3 hours ago	5° C	Dry and cloudy.	Calm (0 kph at 0).	16 km Low: broken Mid: overcast
SHIP6926 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.