– Lat/Long: 47.51° N 121.74° W

Mount Si
Weather Forecast, United States
Issued: 4 pm Sun 15 Mar Local Time
Updates in:
hr min s
Update imminent

Issued: 4 pm Sun 15 Mar Local Time

Updates in:

hr min s

Update imminent

2 Mount Si Elevations: 2 Forecast Elevations:

	Days 1–4 Weather Summary Heavy rain (total 56mm), heaviest during Tue night. Very mild (max 12°C on Mon afternoon, min 3°C on Sun afternoon). Wind will be generally light.											Days 5–7 Weather Summary Heavy rain (total 53mm), heaviest during Wed afternoon. Very mild (max 11°C on Thu morning, min 2°C on Fri night). Wind will be generally light.
	Sun 15		Monday 16			Tuesday 17			Wednesday 18			Thursday 19			Friday 20
	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	light rain	mod. rain	light rain	rain shwrs	light rain	light rain	light rain	heavy rain	heavy rain	heavy rain	mod. rain	light rain	light rain	heavy rain	mod. rain	mod. rain	light rain
km/h	S	SSW	SSW	WSW	SSW	SW	SW	SW	SW	SSW	SSW	SSW	SSW	SW	WSW	WSW	W
See all weather maps
cm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
mm	2	7	2	1	0.2	3	1.8	26	12	12	6	0.8	4	15	9	5	1.4
max °C	5	7	8	12	10	10	11	10	10	10	10	11	10	10	10	9	7
min °C	3	4	8	10	9	8	11	10	10	10	10	10	10	10	9	8	2
chill °C	1	2	6	9	7	6	10	10	8	8	8	8	8	8	6	5	0

Freezing level m	1100	2350	3150	2900	2750	2550	2600	2750	2600	2700	2700	2500	2900	2650	2050	1850	1100
Cloud base (m)	800	450	550	400	2350	600	500	400	400	400	600	1500	450	400	450	400	450

	—	—	7:18	—	—	7:16	—	—	7:13	—	—	7:11	—	—	7:09	—	—
	7:12	—	—	7:13	—	—	7:14	—	—	7:15	—	—	7:16	—	—	7:19	—

Mount Si Weather (Days 0-3):

The weather forecast for Mount Si is: Heavy rain (total 56mm), heaviest during Tue night. Very mild (max 12°C on Mon afternoon, min 3°C on Sun afternoon). Wind will be generally light.

Mount Si Weather (Days 3-6):

Heavy rain (total 53mm), heaviest during Wed afternoon. Very mild (max 11°C on Thu morning, min 2°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	8° C	Dry	Calm (0 kph at 354).
Snoqualmie Pass 30 km ESE 824m alt. 59 minutes ago	1° C	-	Calm (0 kph at 59).
Black Diamond 32 km SSW 192m alt. 49 minutes ago		-	Calm (5 kph at 0).
Grotto wx 35 km NE 321m alt. 29 minutes ago	4° C	Dry	Calm (0 kph at 91).
Baring wx 35 km NE 220m alt. 55 minutes ago	3° C	Dry	Calm (5 kph at 80).
Renton Airport 36 km WSW 218m alt. 2 hours ago	9° C	Dry and cloudy.	Calm (0 kph at 0).	16 km Low: broken Mid: overcast
Grotto wx 39 km NE 1101m alt. 30 minutes ago	0° C	-	Calm (0 kph at 221).
Auburn 39 km SW 119m alt. 1 hour ago	16° C	Dry	Light winds from the NNE (8 kph at 26).
Stampede Pass Airport 40 km SE 628m alt. 2 hours ago	-3° C	Light snow.	Calm (0 kph at 0).	1 km
Woodinville 43 km WNW 137.2m alt. 1 hour ago	4° C	Dry	Calm (0 kph at 174).

* 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.