– Lat/Long: 47.51° N 121.74° W

Mount Si
Weather Forecast, United States
Issued: 4 pm Thu 02 Jul Local Time
Updates in:
hr min s
Update imminent

Issued: 4 pm Thu 02 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 3mm), mostly falling on Thu night. Very mild (max 14°C on Sat afternoon, min 7°C on Sat night). Wind will be generally light.											Days 5–7 Weather Summary Mostly dry. Very mild (max 17°C on Mon afternoon, min 7°C on Tue night). Wind will be generally light.
	Thu 2		Friday 3			Saturday 4			Sunday 5			Monday 6			Tuesday 7
	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	light rain	light rain	rain shwrs	rain shwrs	some clouds	clear	clear	clear	clear	clear	clear	clear	clear	some clouds	some clouds	cloudy	light rain
km/h	SW	WSW	SW	W	SW	SW	WSW	NNW	NNW	NNW	NNW	SE	WNW	SW	SW	W	WSW
See all weather maps
cm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
mm	0.1	2	1	0.1	—	—	—	—	—	—	—	—	—	—	—	—	0.1
max °C	10	9	9	13	12	9	14	11	8	13	14	16	17	16	13	13	11
min °C	10	8	8	11	9	9	12	7	8	12	13	14	16	13	12	13	7
chill °C	8	6	6	11	7	7	11	6	6	11	13	14	16	12	11	13	4

Freezing level m	3150	3050	3650	3800	3550	3450	3600	3700	3700	3900	4050	4000	4200	4100	3900	3700	3500
Cloud base (m)	750	450	500		450	700						6900	8550	5900	6850	5700	2250

	—	—	5:13	—	—	5:15	—	—	5:16	—	—	5:16	—	—	5:16	—	—
	—	9:07	—	—	9:07	—	—	9:06	—	—	9:06	—	—	9:06	—	—	9:05

Mount Si Weather (Days 0-3):

The weather forecast for Mount Si is: Light rain (total 3mm), mostly falling on Thu night. Very mild (max 14°C on Sat afternoon, min 7°C on Sat night). Wind will be generally light.

Mount Si Weather (Days 3-6):

Mostly dry. Very mild (max 17°C on Mon afternoon, min 7°C on Tue night). Wind will be generally light.

This table gives the weather forecast for Mount Si at the specific elevation of 1270 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. 32 minutes ago	16° C	Dry	Calm (0 kph at 302).
Snoqualmie Pass 30 km ESE 824m alt. 39 minutes ago	18° C	-	Calm (0 kph at 256).
Renton 30 km WSW 160m alt. 2 hours ago	19° C	Dry	Calm (3 kph at 207).
Grotto wx 35 km NE 321m alt. 1 hour ago	18° C	Dry	Light winds from the W (16 kph at 272).
Renton Airport 36 km WSW 218m alt. 2 hours ago	20° C	Dry and cloudy.	Light winds from the S (7 kph at 170).	16 km Low: scattered Mid: overcast
Grotto wx 39 km NE 1101m alt. 1 hour ago	13° C	Dry	Calm (0 kph at 105).
Auburn 39 km SW 119m alt. 1 hour ago		-	Calm (0 kph at 213).
Stampede Pass Airport 40 km SE 628m alt. 2 hours ago	14° C	-	Wind obs. (7 kph from 1 degs) was rejected.	16 km Low: few
SHIP4271 43 km W 3m alt. 2 hours ago	17° C
SHIP6822 43 km W 15m alt. 2 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.