– Lat/Long: 47.51° N 121.74° W

Mount Si
Weather Forecast, United States
Issued: 10 am Wed 22 Jul Local Time
Updates in:
hr min s
Update imminent

Issued: 10 am Wed 22 Jul Local Time

Updates in:

hr min s

Update imminent

2 Mount Si Elevations: 2 Forecast Elevations:

	Days 1–3 Weather Summary Light rain (total 3mm), mostly falling on Thu morning. Warm (max 32°C on Wed afternoon, min 15°C on Fri night). Wind will be generally light.									Days 4–6 Weather Summary Light rain (total 6mm), mostly falling on Sun night. Warm (max 21°C on Sat afternoon, min 12°C on Mon night). Wind will be generally light.
	Wednesday 22			Thursday 23			Friday 24			Saturday 25			Sunday 26			Monday 27
	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	clear	rain shwrs	rain shwrs	light rain	rain shwrs	rain shwrs	clear	clear	clear	clear	some clouds	rain shwrs	rain shwrs	light rain	rain shwrs	rain shwrs	rain shwrs	clear
Cloud base (m)	4600	5350	4750	400	550						1950	950	900	900	600	850
km/h	NW	NW	E	W	W	SSE	W	W	S	W	WSW	SSW	WSW	W	SW	W	W	S
See all weather maps
cm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
mm	—	0.3	0.5	1.5	0.2	0.1	—	—	—	—	—	0.4	0.2	1.6	3	0.7	0.1	—
max °C	30	32	27	17	20	20	22	26	23	18	21	17	17	18	13	17	21	19
min °C	26	30	18	17	19	16	18	25	15	16	19	13	14	14	13	14	20	12
chill °C	26	30	18	17	19	16	18	25	15	16	19	13	14	14	13	14	20	12

Freezing level m	4650	4800	4650	4500	4450	4400	4300	4250	4000	3650	3350	3650	3550	3100	3600	3850	3850	3800

	5:31	—	—	5:33	—	—	5:33	—	—	5:35	—	—	5:35	—	—	5:37	—	—
	—	—	8:52	—	—	8:52	—	—	8:51	—	—	8:50	—	—	8:49	—	—	8:47

Mount Si Weather (Days 0-3):

The weather forecast for Mount Si is: Light rain (total 3mm), mostly falling on Thu morning. Warm (max 32°C on Wed afternoon, min 15°C on Fri night). Wind will be generally light.

Mount Si Weather (Days 3-6):

Light rain (total 6mm), mostly falling on Sun night. Warm (max 21°C on Sat afternoon, min 12°C on Mon 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 Airport 36 km WSW 218m alt. 2 hours ago	31° C	Clear	Light winds from the NNW (17 kph at 330).	13 km
Auburn 39 km SW 119m alt. 59 minutes ago	37° C	Dry	Calm (2 kph at 249).
Stampede Pass Airport 40 km SE 628m alt. 2 hours ago	31° C	Clear	Wind obs. (6 kph from 1 degs) was rejected.	16 km
Seattl / oeing Airport 44 km WSW 218m alt. 2 hours ago	29° C	Clear	Light winds from the WNW (13 kph at 300).	16 km
Seattle Tacoma International Airport 44 km WSW 218m alt. 2 hours ago	32° C	-	Light winds from the W (19 kph at 280).	16 km Low: few Mid: few
BUOY-EBSW1 46 km W 3m alt. 1 hour ago
Seattle 49 km WSW 100m alt. 45 minutes ago	29° C	-	Wind obs. (32 kph from 166 degs) was rejected.
BUOY-WPOW1 55 km W 3m alt. 1 hour ago	21° C		Light winds from the NE (15 kph at 40).
BUOY-TCNW1 57 km SW 3m alt. 1 hour ago
BUOY-TCMW1 57 km SW 3m alt. 1 hour ago	24° C		Light winds from the WNW (8 kph at 290).

* 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.