– Lat/Long: 47.51° N 121.74° W

Mount Si
Weather Forecast, United States
Issued: 4 am Mon 07 Sep Local Time
Updates in:
hr min s
Update imminent

Issued: 4 am Mon 07 Sep 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 23°C on Wed afternoon, min 11°C on Mon morning). Wind will be generally light.									Days 4–6 Weather Summary Moderate rain (total 13mm), heaviest on Sat morning. Very mild (max 18°C on Thu afternoon, min 8°C on Thu night). Wind will be generally light.
	Monday 7			Tuesday 8			Wednesday 9			Thursday 10			Friday 11			Saturday 12
	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	light rain	some clouds	some clouds	clear	clear	clear	clear	clear	some clouds	light rain	rain shwrs	some clouds	light rain	rain shwrs	rain shwrs	light rain	light rain	rain shwrs
Cloud base (m)	500	700	6050					9200		500		7000	650	800	400	450	600	2050
km/h	WSW	NNW	ENE	WNW	NW	ESE	W	W	SW	SW	WSW	S	SSW	W	WSW	WNW	WNW	E
See all weather maps
cm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
mm	0.3	—	—	—	—	—	—	—	—	0.4	0.1	—	0.1	0.9	4	4	2	0.7
max °C	12	16	13	17	21	16	21	23	17	13	18	14	11	12	10	9	11	11
min °C	11	14	11	13	20	14	16	23	13	12	16	8	10	12	9	9	10	8
chill °C	11	14	11	13	20	14	16	23	13	12	16	6	9	12	8	8	10	8

Freezing level m	2600	2850	3250	3500	3750	4100	4400	4350	4000	3450	3450	3350	2400	2200	2000	1950	2150	2450

	6:33	—	—	6:33	—	—	6:35	—	—	6:37	—	—	6:37	—	—	6:39	—	—
	—	7:36	—	—	7:32	—	—	7:30	—	—	7:29	—	—	7:27	—	—	7:24	—

Mount Si Weather (Days 0-3):

The weather forecast for Mount Si is: Mostly dry. Warm (max 23°C on Wed afternoon, min 11°C on Mon morning). Wind will be generally light.

Mount Si Weather (Days 3-6):

Moderate rain (total 13mm), heaviest on Sat morning. Very mild (max 18°C on Thu afternoon, min 8°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
Renton 30 km WSW 160m alt. 2 hours ago	13°C	Dry	Calm (0 kph at 154).
Black Diamond 32 km SSW 192m alt. 1 hour ago		-	Calm (0 kph at 0).
Renton Airport 36 km WSW 218m alt. 2 hours ago	15°C	Dry and partly cloudy.	Light winds from the N (6 kph at 1).	16 km Low: broken Mid: broken
Auburn 39 km SW 119m alt. 52 minutes ago	17°C	Dry	Calm (0 kph at 323).
Monroe 44 km NW 80m alt. 1 hour ago		-	Calm (0 kph at 277).
Seattl / oeing Airport 44 km WSW 218m alt. 2 hours ago	15°C	Dry and partly cloudy.	Light winds from the SE (19 kph at 140).	16 km Low: broken
Seattle Tacoma International Airport 44 km WSW 218m alt. 2 hours ago	14°C	Dry and cloudy.	Light winds from the SSE (15 kph at 160).	16 km Low: overcast
BUOY-EBSW1 46 km W 3m alt. 1 hour ago
Snohomish 49 km NW 196m alt. 2 hours ago	11°C	Dry	Calm (0 kph at 59).
Seattle 49 km WSW 100m alt. 2 hours ago		-

* 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.