– Lat/Long: 47.51° N 121.74° W

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

Issued: 10 pm Wed 22 Jul Local Time

Updates in:

hr min s

Update imminent

2 Mount Si Elevations: 2 Forecast Elevations:

	Days 1–4 Weather Summary Light rain (total 4mm), mostly falling on Thu morning. Warm (max 26°C on Fri afternoon, min 14°C on Fri night). Wind will be generally light.										Days 5–7 Weather Summary Mostly dry. Warm (max 23°C on Sun afternoon, min 12°C on Mon night). Wind will be generally light.
		Thursday 23			Friday 24			Saturday 25			Sunday 26			Monday 27			Tuesday 28
	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	rain shwrs	light rain	rain shwrs	clear	clear	clear	clear	clear	some clouds	some clouds	clear	clear	some clouds	some clouds	rain shwrs	clear	clear	clear	clear
Cloud base (m)	900	450	500						1800	900		2250	1700	1700	1550
km/h	W	W	WNW	S	W	WNW	S	W	WSW	SW	W	W	SW	W	WNW	S	W	WNW	E
See all weather maps
cm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
mm	1.9	1.6	0.3	—	—	—	—	—	—	—	—	—	—	—	0.1	—	—	—	—
max °C	25	17	20	21	22	26	22	18	20	16	19	23	20	17	21	19	18	23	20
min °C	18	17	18	16	18	25	14	16	20	14	15	22	13	15	19	12	15	21	14
chill °C	18	17	18	16	18	25	14	16	20	14	15	22	13	15	19	12	15	21	14

Freezing level m	4550	4450	4400	4400	4250	4200	3800	3600	3250	3800	3800	3850	3550	3550	3800	3900	3900	4050	4100

	—	5:33	—	—	5:33	—	—	5:35	—	—	5:35	—	—	5:37	—	—	5:39	—	—
	—	—	—	8:52	—	—	8:51	—	—	8:50	—	—	8:49	—	—	8:47	—	—	8:45

Mount Si Weather (Days 0-3):

The weather forecast for Mount Si is: Light rain (total 4mm), mostly falling on Thu morning. Warm (max 26°C on Fri afternoon, min 14°C on Fri night). Wind will be generally light.

Mount Si Weather (Days 3-6):

Mostly dry. Warm (max 23°C on Sun 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 30 km WSW 160m alt. 58 minutes ago	17° C	Dry	Calm (0 kph at 236).
Renton Airport 36 km WSW 218m alt. 2 hours ago	19° C	Clear	Light winds from the SSE (11 kph at 160).	16 km
Auburn 39 km SW 119m alt. 1 hour ago	18° C	Dry	Calm (0 kph at 342).
Stampede Pass Airport 40 km SE 628m alt. 2 hours ago	14° C	Mist -.	Wind obs. (7 kph from 220 degs) was rejected.	6 km Low: scattered Mid: broken
Seattl / oeing Airport 44 km WSW 218m alt. 2 hours ago	18° C	Clear	Light winds from the SSE (11 kph at 160).	16 km
Seattle Tacoma International Airport 44 km WSW 218m alt. 2 hours ago	17° C	Dry and partly cloudy.	Light winds from the SSW (13 kph at 200).	16 km Low: few Mid: scattered
BUOY-EBSW1 46 km W 3m alt. 1 hour ago
Snohomish 49 km NW 196m alt. 1 hour ago	22° C	Dry	Calm (3 kph at 169).
Seattle 49 km WSW 100m alt. 2 hours ago	28° C	-
SHIP3410 51 km SW 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.