– Lat/Long: 47.51° N 121.74° W

Mount Si
Weather Forecast, United States
Issued: 4 pm Fri 04 Sep Local Time
Updates in:
hr min s
Update imminent

Issued: 4 pm Fri 04 Sep Local Time

Updates in:

hr min s

Update imminent

2 Mount Si Elevations: 2 Forecast Elevations:

	Days 1–4 Weather Summary Light rain (total 5mm), mostly falling on Sat night. Very mild (max 19°C on Sun afternoon, min 10°C on Sat night). Wind will be generally light.											Days 5–7 Weather Summary Mostly dry. Warm (max 26°C on Wed afternoon, min 11°C on Mon night). Wind will be generally light.
	Fri 4		Saturday 5			Sunday 6			Monday 7			Tuesday 8			Wednesday 9
	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	risk tstorm	light rain	some clouds	rain shwrs	rain shwrs	clear	some clouds	clear	clear	clear	some clouds	some clouds	some clouds	clear	clear	clear	clear
Cloud base (m)	1550	2600	2500	1700	2800	6750			6250	1800	8350	6300	5750
km/h	ESE	ESE	WNW	W	E	NW	NW	NNE	W	W	ENE	NNE	NNW	E	W	WNW	SSE
See all weather maps
cm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
mm	1.7	0.2	—	0.9	2	—	—	—	—	—	—	—	—	—	—	—	—
max °C	16	13	16	18	12	17	19	15	15	17	13	17	21	17	24	26	20
min °C	15	11	12	15	10	12	19	11	12	17	11	13	21	16	17	26	16
chill °C	15	10	12	15	10	12	19	11	12	17	11	13	21	16	17	26	16

Freezing level m	2550	2550	2550	2650	2700	2750	2850	2850	2800	3000	3450	3550	3650	3850	3950	4000	3850

	—	—	6:30	—	—	6:31	—	—	6:33	—	—	6:33	—	—	6:35	—	—
	7:42	—	—	7:39	—	—	7:37	—	—	7:36	—	—	7:32	—	—	7:30	—

Mount Si Weather (Days 0-3):

The weather forecast for Mount Si is: Light rain (total 5mm), mostly falling on Sat night. Very mild (max 19°C on Sun afternoon, min 10°C on Sat night). Wind will be generally light.

Mount Si Weather (Days 3-6):

Mostly dry. Warm (max 26°C on Wed afternoon, min 11°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
lightning 15km NNE of Snoqualmie 13 km NNE 1112m alt. 1 hour ago		Thunderstorm
lightning 24km NNE of Tanner 21 km NE 671m alt. 1 hour ago		Thunderstorm
lightning 5km N of Ames Lake 26 km WNW 11m alt. 34 minutes ago		Thunderstorm
Renton 30 km WSW 160m alt. 1 hour ago	18°C	Dry	Calm (5 kph at 60).
Black Diamond 32 km SSW 192m alt. 1 hour ago		-	Calm (5 kph at 242).
Renton Airport 36 km WSW 218m alt. 1 hour ago	22°C	Thunderstorm - in the vicinity.	Light winds from the N (11 kph at 0).	16 km
Auburn 39 km SW 119m alt. 22 minutes ago	28°C	Dry	Calm (0 kph at 253).
SHIP8583 43 km W 15m alt. 3 hours ago				- km
SHIP8908 43 km W 15m alt. 3 hours ago				- km
SHIP5438 43 km W 3m alt. 2 hours ago	20°C

* 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.