– Lat/Long: 47.51° N 121.74° W

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

Issued: 10 am Fri 10 Jul Local Time

Updates in:

hr min s

Update imminent

2 Mount Si Elevations: 2 Forecast Elevations:

	Days 1–3 Weather Summary Mostly dry. Warm (max 22°C on Fri afternoon, min 11°C on Fri night). Wind will be generally light.									Days 4–6 Weather Summary Mostly dry. Warm (max 25°C on Tue afternoon, min 13°C on Tue night). Wind will be generally light.
	Friday 10			Saturday 11			Sunday 12			Monday 13			Tuesday 14			Wednesday 15
	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	clear	clear	some clouds	some clouds	clear	some clouds	rain shwrs	clear	clear	clear	some clouds	clear	clear	clear	clear	clear	clear	clear
km/h	WNW	W	SSW	W	W	SW	W	WNW	ENE	NW	WNW	ESE	WNW	NW	SE	WNW	NW	NE
See all weather maps
cm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
mm	—	—	—	—	—	—	0.3	—	—	—	—	—	—	—	—	—	—	—
max °C	18	22	18	16	20	18	14	20	16	19	23	20	21	25	21	20	23	19
min °C	15	21	11	13	19	11	11	18	11	15	22	15	18	24	13	16	22	13
chill °C	15	21	11	13	19	10	11	18	11	15	22	15	18	24	13	16	22	13

Freezing level m	3650	3600	3350	3300	3500	3300	3250	3650	4000	4050	4250	4350	4200	4300	4250	4050	4000	4100
Cloud base (m)			850	1500	1950	1600				8950	6100	5600

	5:20	—	—	5:20	—	—	5:20	—	—	5:22	—	—	5:22	—	—	5:24	—	—
	—	—	9:02	—	—	9:02	—	—	9:01	—	—	9:00	—	—	9:00	—	—	9:00

Mount Si Weather (Days 0-3):

The weather forecast for Mount Si is: Mostly dry. Warm (max 22°C on Fri afternoon, min 11°C on Fri night). Wind will be generally light.

Mount Si Weather (Days 3-6):

Mostly dry. Warm (max 25°C on Tue afternoon, min 13°C on Tue 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
Snoqualmie Pass 30 km ESE 824m alt. 2 hours ago	24° C	-	Calm (0 kph at 259).
Renton 30 km WSW 160m alt. 2 hours ago	22° C	Dry	Calm (3 kph at 294).
Renton Airport 36 km WSW 218m alt. 3 hours ago	23° C	Clear	Wind obs. (11 kph from 1 degs) was rejected.	16 km
Stampede Pass Airport 40 km SE 628m alt. 2 hours ago	19° C	Dry and cloudy.	Wind obs. (11 kph from 1 degs) was rejected.	16 km Low: overcast
SHIP7538 43 km W 15m alt. 3 hours ago				- km
SHIP2142 43 km W 15m alt. 3 hours ago				- km
SHIP9177 43 km W 15m alt. 3 hours ago				- km
SHIP1952 43 km W 15m alt. 1 hour ago				- km
SHIP7853 43 km W 15m alt. 1 hour ago				- km
SHIP8795 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.