– Lat/Long: 47.51° N 121.74° W

Mount Si
Weather Forecast, United States
Issued: 4 am Mon 22 Jun Local Time
Updates in:
hr min s
Update imminent

Issued: 4 am Mon 22 Jun 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 27°C on Tue afternoon, min 11°C on Wed night). Wind will be generally light.									Days 4–6 Weather Summary Heavy rain (total 28mm), heaviest during Fri night. Very mild (max 18°C on Thu afternoon, min 8°C on Sat morning). Wind will be generally light.
	Monday 22			Tuesday 23			Wednesday 24			Thursday 25			Friday 26			Saturday 27
	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	clear	clear	clear	some clouds	some clouds	some clouds	cloudy	some clouds	some clouds	clear	some clouds	mod. rain	mod. rain	light rain	mod. rain	light rain	light rain	rain shwrs
km/h	NW	NW	ESE	WNW	NW	SSE	WSW	WSW	SSW	SW	W	SW	SW	SW	W	SSW	SW	W
See all weather maps
cm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
mm	—	—	—	—	—	—	—	—	—	—	—	6	5	4	9	1.7	0.4	1.1
max °C	22	25	22	25	27	23	20	22	20	16	18	12	11	12	12	9	10	10
min °C	18	24	18	22	26	17	18	20	11	13	16	11	11	11	9	8	10	8
chill °C	18	24	18	22	26	17	18	20	11	13	16	11	10	10	8	6	9	8

Freezing level m	3400	3750	3700	3600	3750	3600	3550	3400	3250	3350	3150	3150	2600	2400	2200	1850	2000	2450
Cloud base (m)	9100	9100				7200	6600	5800		7050	1650	400	400	400	400	400	400	1550

	5:09	—	—	5:09	—	—	5:09	—	—	5:09	—	—	5:11	—	—	5:11	—	—
	—	—	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: Mostly dry. Warm (max 27°C on Tue afternoon, min 11°C on Wed night). Wind will be generally light.

Mount Si Weather (Days 3-6):

Heavy rain (total 28mm), heaviest during Fri night. Very mild (max 18°C on Thu afternoon, min 8°C on Sat morning). 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	13° C	Dry	Calm (0 kph at 346).
Snoqualmie Pass 30 km ESE 824m alt. 1 hour ago	7° C	-	Calm (0 kph at 23).
Renton 30 km WSW 160m alt. 1 hour ago	18° C	Dry	Calm (0 kph at 160).
Grotto wx 35 km NE 321m alt. 2 hours ago	12° C	Dry	Calm (3 kph at 54).
Renton Airport 36 km WSW 218m alt. 3 hours ago	13° C	Clear	Light winds from the S (6 kph at 170).	16 km
Grotto wx 39 km NE 1101m alt. 2 hours ago	8° C	Dry	Calm (0 kph at 5).
Auburn 39 km SW 119m alt. 57 minutes ago		-	Calm (2 kph at 271).
Stampede Pass Airport 40 km SE 628m alt. 3 hours ago	11° C	Clear	Light winds from the SW (6 kph at 220).	16 km
SHIP4935 43 km W 3m alt. 3 hours ago	13° C
SHIP631 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.