– Lat/Long: 47.51° N 121.74° W

Mount Si
Weather Forecast, United States
Issued: 4 am Tue 23 Jun Local Time
Updates in:
hr min s
Update imminent

Issued: 4 am Tue 23 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 3mm), mostly falling on Thu night. Warm (max 27°C on Tue afternoon, min 10°C on Wed night). Wind will be generally light.									Days 4–6 Weather Summary Heavy rain (total 26mm), heaviest during Fri afternoon. Very mild (max 13°C on Sun afternoon, min 7°C on Fri night). Wind will be generally light.
	Tuesday 23			Wednesday 24			Thursday 25			Friday 26			Saturday 27			Sunday 28
	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	some clouds	some clouds	some clouds	some clouds	some clouds	some clouds	some clouds	some clouds	light rain	light rain	mod. rain	mod. rain	rain shwrs	rain shwrs	light rain	light rain	light rain	light rain
km/h	W	NW	E	W	WSW	S	SW	WSW	SW	SSW	SW	SW	WSW	WNW	SW	WNW	WNW	SW
See all weather maps
cm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
mm	—	—	—	—	—	—	—	—	3	4	7	7	3	0.9	0.4	0.5	1	3
max °C	26	27	23	22	24	19	15	19	15	12	11	10	9	11	11	10	13	12
min °C	22	26	17	20	23	10	13	17	10	11	11	7	7	10	10	10	12	9
chill °C	22	26	17	20	23	9	12	17	8	10	9	5	6	10	10	10	12	8

Freezing level m	3500	3750	3650	3450	3600	3450	3350	3250	3000	2600	2250	1650	1850	2150	2300	2950	2750	2750
Cloud base (m)	3500	6950	9250	7450	6600	5550	6400		400	400	400	600	400	900	500	400	500	400

	5:09	—	—	5:09	—	—	5:09	—	—	5:11	—	—	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: Light rain (total 3mm), mostly falling on Thu night. Warm (max 27°C on Tue afternoon, min 10°C on Wed night). Wind will be generally light.

Mount Si Weather (Days 3-6):

Heavy rain (total 26mm), heaviest during Fri afternoon. Very mild (max 13°C on Sun afternoon, min 7°C on Fri 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. 2 hours ago	12° C	Dry	Calm (0 kph at 325).
Snoqualmie Pass 30 km ESE 824m alt. 55 minutes ago	8° C	-	Calm (0 kph at 118).
Renton 30 km WSW 160m alt. 2 hours ago	16° C	Dry	Calm (0 kph at 44).
Black Diamond 32 km SSW 192m alt. 3 hours ago		-	Calm (2 kph at 0).
Grotto wx 35 km NE 321m alt. 1 hour ago	15° C	Dry	Calm (5 kph at 40).
Renton Airport 36 km WSW 218m alt. 2 hours ago	17° C	Clear	Light winds from the SE (6 kph at 140).	16 km
Grotto wx 39 km NE 1101m alt. 1 hour ago	12° C	Dry	Calm (0 kph at 9).
Auburn 39 km SW 119m alt. 2 hours ago	12° C	Dry	Calm (0 kph at 203).
Stampede Pass Airport 40 km SE 628m alt. 2 hours ago	14° C	Clear	Calm (0 kph at 0).	16 km
Woodinville 43 km WNW 137.2m alt. 2 hours ago	6° C	Dry	Calm (0 kph at 316).

* 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.