– Lat/Long: 47.51° N 121.74° W

Mount Si
Weather Forecast, United States
Issued: 10 pm Tue 23 Jun Local Time
Updates in:
hr min s
Update imminent

Issued: 10 pm Tue 23 Jun Local Time

Updates in:

hr min s

Update imminent

2 Mount Si Elevations: 2 Forecast Elevations:

	Days 1–4 Weather Summary Light rain (total 9mm), mostly falling on Fri morning. Warm (max 26°C on Wed afternoon, min 10°C on Thu night). Wind will be generally light.										Days 5–7 Weather Summary Light rain (total 6mm), mostly falling on Fri night. Very mild (max 16°C on Mon afternoon, min 8°C on Fri night). Wind will be generally light.
		Wednesday 24			Thursday 25			Friday 26			Saturday 27			Sunday 28			Monday 29
	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	some clouds	some clouds	clear	some clouds	some clouds	some clouds	light rain	mod. rain	rain shwrs	rain shwrs	light rain	light rain	light rain	light rain	light rain	some clouds	rain shwrs	light rain	rain shwrs
km/h	E	WNW	WSW	S	SW	WSW	SW	SW	SW	SW	WSW	NNW	WSW	SW	W	WSW	W	WSW	SW
See all weather maps
cm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
mm	—	—	—	—	—	—	1.3	5	3	4	1	0.7	0.2	0.2	0.2	—	0.1	0.2	0.4
max °C	24	23	26	20	15	19	14	11	12	11	9	11	11	10	12	12	13	16	13
min °C	19	20	25	11	14	18	10	11	11	8	9	10	9	9	11	11	12	15	9
chill °C	19	20	25	10	13	18	9	10	10	7	8	10	8	9	11	11	12	15	8

Freezing level m	3650	3500	3350	3500	3350	2800	2850	2350	2250	1950	1800	2200	2450	2650	3250	3550	3400	3200	3200
Cloud base (m)	8350	6950			6050	2800	400	400	400	700	550	500	900	400	600	650	850	1500	400

	—	5:09	—	—	5:09	—	—	5:11	—	—	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 9mm), mostly falling on Fri morning. Warm (max 26°C on Wed afternoon, min 10°C on Thu night). Wind will be generally light.

Mount Si Weather (Days 3-6):

Light rain (total 6mm), mostly falling on Fri night. Very mild (max 16°C on Mon afternoon, min 8°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. 1 hour ago	14° C	Dry	Calm (0 kph at 293).
Snoqualmie Pass 30 km ESE 824m alt. 1 hour ago	11° C	-	Calm (0 kph at 34).
Renton 30 km WSW 160m alt. 1 hour ago	19° C	Dry	Calm (0 kph at 313).
Grotto wx 35 km NE 321m alt. 47 minutes ago	18° C	Dry	Calm (3 kph at 51).
Renton Airport 36 km WSW 218m alt. 3 hours ago	21° C	Clear	Calm (0 kph at 0).	16 km
Grotto wx 39 km NE 1101m alt. 1 hour ago	12° C	Dry	Calm (0 kph at 352).
Auburn 39 km SW 119m alt. 1 hour ago	18° C	Dry	Calm (0 kph at 55).
Stampede Pass Airport 40 km SE 628m alt. 3 hours ago	17° C	Clear	Wind obs. (6 kph from 200 degs) was rejected.	16 km
Woodinville 43 km WNW 137.2m alt. 2 hours ago	11° C	Dry	Calm (0 kph at 242).
Seattl / oeing Airport 44 km WSW 218m alt. 3 hours ago	22° C	Clear	Calm (0 kph at 0).	16 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.