– Lat/Long: 47.51° N 121.74° W

Mount Si
Weather Forecast, United States
Issued: 4 am Sat 27 Jun Local Time
Updates in:
hr min s
Update imminent

Issued: 4 am Sat 27 Jun Local Time

Updates in:

hr min s

Update imminent

2 Mount Si Elevations: 2 Forecast Elevations:

	Days 1–3 Weather Summary Light rain (total 4mm), mostly falling on Sat morning. Very mild (max 14°C on Sat afternoon, min 9°C on Sat morning). Wind will be generally light.									Days 4–6 Weather Summary Mostly dry. Very mild (max 18°C on Thu afternoon, min 7°C on Wed night). Wind will be generally light.
	Saturday 27			Sunday 28			Monday 29			Tuesday 30			Wednesday 1			Thursday 2
	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	light rain	rain shwrs	rain shwrs	light rain	rain shwrs	light rain	cloudy	rain shwrs	rain shwrs	light rain	rain shwrs	rain shwrs	light rain	light rain	some clouds	clear	clear	clear
km/h	WSW	NW	WNW	W	W	W	WSW	W	WNW	WSW	W	W	SW	SW	SE	W	W	NE
See all weather maps
cm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
mm	1.4	1.1	0.5	0.3	0.3	0.2	—	0.1	0.3	0.1	0.2	0.1	0.1	0.2	—	—	—	—
max °C	10	14	13	11	14	14	10	14	13	11	14	14	10	13	12	13	18	16
min °C	9	12	10	10	12	10	10	11	10	10	12	9	9	11	7	10	17	8
chill °C	8	12	10	10	12	10	10	11	10	10	12	9	8	10	7	10	17	8

Freezing level m	1900	2300	2700	3100	3300	3700	3600	3400	3400	3300	3200	2650	2300	2500	2600	2600	2900	2850
Cloud base (m)	650	850	1900	550	650	500	450	550	550	650	700	800	550	700	900	850	1900	6500

	5:11	—	—	5:11	—	—	5:11	—	—	5:11	—	—	5:13	—	—	5:13	—	—
	—	—	9:07	—	—	9:07	—	—	9:07	—	—	9:07	—	—	9:07	—	—	9:07

Mount Si Weather (Days 0-3):

The weather forecast for Mount Si is: Light rain (total 4mm), mostly falling on Sat morning. Very mild (max 14°C on Sat afternoon, min 9°C on Sat morning). Wind will be generally light.

Mount Si Weather (Days 3-6):

Mostly dry. Very mild (max 18°C on Thu afternoon, min 7°C on Wed 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. 1 hour ago	16° C	Dry	Calm (0 kph at 317).
Snoqualmie Pass 30 km ESE 824m alt. 1 hour ago	11° C	-	Calm (0 kph at 159).
Renton 30 km WSW 160m alt. 2 hours ago	12° C	Dry	Calm (0 kph at 141).
Grotto wx 35 km NE 321m alt. 3 hours ago	11° C	Dry	Light winds from the WSW (6 kph at 244).
Renton Airport 36 km WSW 218m alt. 2 hours ago	13° C	Light rain .	Light winds from the NNW (6 kph at 340).	16 km Low: overcast
Grotto wx 39 km NE 1101m alt. 28 minutes ago	7° C	Dry	Calm (0 kph at 126).
Auburn 39 km SW 119m alt. 54 minutes ago		-	Wind obs. (6 kph from 282 degs) was rejected.
Stampede Pass Airport 40 km SE 628m alt. 2 hours ago	5° C	-	Wind obs. (6 kph from 1 degs) was rejected.	0.0 km
SHIP3253 43 km W 15m alt. 2 hours ago				- km
SHIP2281 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.