– Lat/Long: 47.51° N 121.74° W

Mount Si
Weather Forecast, United States
Issued: 4 pm Tue 30 Jun Local Time
Updates in:
hr min s
Update imminent

Issued: 4 pm Tue 30 Jun Local Time

Updates in:

hr min s

Update imminent

2 Mount Si Elevations: 2 Forecast Elevations:

	Days 1–4 Weather Summary Mostly dry. Very mild (max 18°C on Thu afternoon, min 8°C on Wed night). Wind will be generally light.											Days 5–7 Weather Summary Mostly dry. Very mild (max 19°C on Fri afternoon, min 8°C on Sat night). Wind will be generally light.
	Tue 30		Wednesday 1			Thursday 2			Friday 3			Saturday 4			Sunday 5
	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	rain shwrs	some clouds	some clouds	rain shwrs	some clouds	some clouds	cloudy	some clouds	some clouds	rain shwrs	rain shwrs	rain shwrs	clear	some clouds	some clouds	clear	clear
km/h	W	W	W	WNW	NW	WNW	WNW	S	WSW	W	WSW	SW	WSW	SE	NW	NW	E
See all weather maps
cm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
mm	0.2	—	—	0.1	—	—	—	—	—	0.1	0.4	0.2	—	—	—	—	—
max °C	13	13	12	14	14	14	18	17	16	19	17	12	18	15	14	19	17
min °C	12	9	10	13	8	11	17	11	13	16	11	11	16	8	11	18	12
chill °C	12	9	10	13	8	11	17	11	13	16	10	10	16	8	11	18	12

Freezing level m	3150	3150	3100	3200	3450	3400	3250	3200	3500	3600	3400	3200	3400	3700	3600	3750	4050
Cloud base (m)	800	1500	750	850	1650	600	6450	3000	700	750	850	500	1650	850	7350		9300

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

Mount Si Weather (Days 0-3):

The weather forecast for Mount Si is: Mostly dry. Very mild (max 18°C on Thu afternoon, min 8°C on Wed night). Wind will be generally light.

Mount Si Weather (Days 3-6):

Mostly dry. Very mild (max 19°C on Fri afternoon, min 8°C on Sat 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
Harman Heights wx 6 km SSW 251m alt. 2 hours ago	15° C	Dry	Calm (0 kph at 144).
Snoqualmie Pass 30 km ESE 824m alt. 2 hours ago	11° C	-	Calm (0 kph at 236).
Renton 30 km WSW 160m alt. 1 hour ago	14° C	Dry	Calm (0 kph at 206).
Grotto wx 35 km NE 321m alt. 3 hours ago	13° C	Dry	Calm (3 kph at 221).
Renton Airport 36 km WSW 218m alt. 2 hours ago	16° C	Dry and partly cloudy.	Light winds from the S (6 kph at 190).	16 km Low: broken Mid: broken
Grotto wx 39 km NE 1101m alt. 1 hour ago	7° C	Dry	Calm (0 kph at 65).
Auburn 39 km SW 119m alt. 2 hours ago	25° C	Dry	Calm (0 kph at 246).
Stampede Pass Airport 40 km SE 628m alt. 2 hours ago	6° C	Mist -.	Light winds from the S (7 kph at 181).	2 km
Woodinville 43 km WNW 137.2m alt. 1 hour ago	11° C	Dry	Wind obs. (14 kph from 283 degs) was rejected.
SHIP2253 44 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.