– Lat/Long: 47.51° N 121.74° W

Mount Si
Weather Forecast, United States
Issued: 4 pm Mon 29 Jun Local Time
Updates in:
hr min s
Update imminent

Issued: 4 pm Mon 29 Jun Local Time

Updates in:

hr min s

Update imminent

2 Mount Si Elevations: 2 Forecast Elevations:

	Days 1–4 Weather Summary Some drizzle, heaviest during Mon afternoon. Very mild (max 14°C on Tue afternoon, min 9°C on Tue night). Wind will be generally light.											Days 5–7 Weather Summary Light rain (total 4mm), mostly falling on Thu night. Warm (max 20°C on Sat afternoon, min 8°C on Sat night). Wind will be generally light.
	Mon 29		Tuesday 30			Wednesday 1			Thursday 2			Friday 3			Saturday 4
	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	rain shwrs	rain shwrs	light rain	rain shwrs	rain shwrs	light rain	light rain	some clouds	some clouds	cloudy	light rain	light rain	rain shwrs	rain shwrs	rain shwrs	some clouds	clear
km/h	W	WNW	WSW	WSW	WNW	WSW	WSW	W	WNW	WNW	WSW	W	SW	W	WSW	WSW	SSW
See all weather maps
cm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
mm	0.1	0.3	0.1	0.2	0.1	0.1	0.2	—	—	—	3	0.2	0.3	0.6	0.2	—	—
max °C	13	13	10	14	13	11	13	12	13	15	11	12	15	15	15	20	17
min °C	10	10	10	12	9	10	11	9	10	14	11	11	13	12	12	19	8
chill °C	10	10	10	12	9	10	11	9	10	14	11	11	13	12	12	19	8

Freezing level m	3550	3500	3150	3150	3100	2650	2700	3150	3150	2850	2650	3200	3450	3600	3250	3150	3500
Cloud base (m)	400	800	450	750	1600	600	700	650	700	2050	400	650	550	1600	600

	—	—	5:11	—	—	5:13	—	—	5:13	—	—	5:13	—	—	5:15	—	—
	—	9:07	—	—	9:07	—	—	9:07	—	—	9:07	—	—	9:07	—	—	9:06

Mount Si Weather (Days 0-3):

The weather forecast for Mount Si is: Some drizzle, heaviest during Mon afternoon. Very mild (max 14°C on Tue afternoon, min 9°C on Tue night). Wind will be generally light.

Mount Si Weather (Days 3-6):

Light rain (total 4mm), mostly falling on Thu night. Warm (max 20°C on Sat 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. 45 minutes ago	16° C	Dry	Calm (0 kph at 68).
Snoqualmie Pass 30 km ESE 824m alt. 34 minutes ago	11° C	-	Calm (0 kph at 256).
Grotto wx 35 km NE 321m alt. 1 hour ago	13° C	Dry	Calm (2 kph at 155).
Renton Airport 36 km WSW 218m alt. 2 hours ago	17° C	Dry and cloudy.	Light winds from the S (9 kph at 190).	16 km Low: scattered Mid: overcast
Auburn 39 km SW 119m alt. 36 minutes ago	26° C	Dry	Calm (0 kph at 27).
Stampede Pass Airport 40 km SE 628m alt. 52 minutes ago	7° C	Fog -.	Wind obs. (7 kph from 1 degs) was rejected.	0 km
SHIP1498 43 km W 3m alt. 3 hours ago
SHIP2518 43 km W 3m alt. 3 hours ago
Woodinville 43 km WNW 137.2m alt. 1 hour ago	13° C	Dry	Wind obs. (23 kph from 317 degs) was rejected.
SHIP3406 43 km W 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.