– Lat/Long: 47.51° N 121.74° W

Mount Si
Weather Forecast, United States
Issued: 4 pm Sun 05 Jul Local Time
Updates in:
hr min s
Update imminent

Issued: 4 pm Sun 05 Jul 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 Mon morning, min 8°C on Tue night). Wind will be generally light.											Days 5–7 Weather Summary Some drizzle, heaviest during Wed afternoon. Very mild (max 11°C on Thu afternoon, min 6°C on Fri night). Wind will be generally light.
	Sun 5		Monday 6			Tuesday 7			Wednesday 8			Thursday 9			Friday 10
	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	clear	clear	clear	clear	clear	clear	some clouds	some clouds	light rain	rain shwrs	rain shwrs	some clouds	some clouds	some clouds	some clouds	rain shwrs	rain shwrs
km/h	N	ESE	SE	WNW	WSW	SW	W	NW	WSW	WSW	SW	SW	WSW	WSW	SW	WSW	SW
See all weather maps
cm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
mm	—	—	—	—	—	—	—	—	0.7	1	0.3	—	—	—	—	0.3	0.3
max °C	15	16	18	18	18	14	16	14	8	10	10	8	11	10	9	11	10
min °C	12	15	16	18	14	14	15	8	8	9	7	7	10	9	9	10	6
chill °C	12	15	16	18	14	14	15	6	5	6	4	4	8	8	7	8	4

Freezing level m	4000	4050	4000	4100	3950	3900	4000	3250	3250	3600	3500	3200	3300	3450	3250	3500	3450
Cloud base (m)					9500		6800	2750	700	650	400	2000	2700	950	1750	800	650

	—	—	5:16	—	—	5:16	—	—	5:18	—	—	5:18	—	—	5:20	—	—
	—	9:06	—	—	9:06	—	—	9:05	—	—	9:05	—	—	9:04	—	—	9:02

Mount Si Weather (Days 0-3):

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

Mount Si Weather (Days 3-6):

Some drizzle, heaviest during Wed afternoon. Very mild (max 11°C on Thu afternoon, min 6°C on Fri 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
North Bend 3 km SW 134m alt. 42 minutes ago	22° C	Dry	Calm (0 kph at 233).
Harman Heights wx 6 km SSW 251m alt. 1 hour ago	18° C	Dry	Calm (0 kph at 346).
Snoqualmie Pass 30 km ESE 824m alt. 1 hour ago	17° C	-	Calm (0 kph at 341).
Renton 30 km WSW 160m alt. 43 minutes ago	22° C	Dry	Calm (3 kph at 320).
Grotto wx 35 km NE 321m alt. 1 hour ago	20° C	Dry	Calm (5 kph at 179).
Renton Airport 36 km WSW 218m alt. 2 hours ago	23° C	Clear	Light winds from the NNW (17 kph at 330).	16 km
Auburn 39 km SW 119m alt. 48 minutes ago	23° C	Dry	Calm (0 kph at 243).
Stampede Pass Airport 40 km SE 628m alt. 1 hour ago	16° C	Clear	Wind obs. (7 kph from 1 degs) was rejected.	16 km
SHIP7280 43 km W 3m alt. 1 hour ago
SHIP2432 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.