– Lat/Long: 47.51° N 121.74° W

Mount Si
Weather Forecast, United States
Issued: 10 pm Tue 28 Apr Local Time
Updates in:
hr min s
Update imminent

Issued: 10 pm Tue 28 Apr 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 Thu afternoon, min 6°C on Tue night). Wind will be generally light.										Days 5–7 Weather Summary Mostly dry. Warm (max 24°C on Sun afternoon, min 10°C on Fri night). Wind will be generally light.
		Wednesday 29			Thursday 30			Friday 1			Saturday 2			Sunday 3			Monday 4
	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	rain shwrs	clear	clear	clear	clear	clear	some clouds	clear	some clouds	rain shwrs	light rain	clear	risk tstorm	clear	some clouds	clear	clear	clear	some clouds
km/h	NNE	NW	NW	ESE	SSW	NW	ESE	W	NW	NNE	NE	NNW	E	NNW	NNW	ESE	WNW	W	SW
See all weather maps
cm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
mm	0.3	—	—	—	—	—	—	—	—	0.6	0.2	—	0.1	—	—	—	—	—	—
max °C	8	12	16	12	17	18	14	16	17	13	17	20	17	22	24	20	18	20	15
min °C	6	8	15	10	14	18	11	13	17	10	11	20	15	19	24	16	16	19	10
chill °C	6	8	15	10	14	18	11	13	17	10	11	20	15	19	24	16	16	19	9

Freezing level m	1500	2300	2650	2750	2850	2950	2950	2850	2900	3000	2950	3150	3400	3350	3500	3400	3450	3650	3750
Cloud base (m)	650					8750	9000	8600	2900	3400	2150	2550	8750		3400			9400	450

	—	5:52	—	—	5:52	—	—	5:50	—	—	5:48	—	—	5:47	—	—	5:45	—	—
	—	—	—	8:15	—	—	8:16	—	—	8:17	—	—	8:19	—	—	8:21	—	—	8:22

Mount Si Weather (Days 0-3):

The weather forecast for Mount Si is: Mostly dry. Very mild (max 18°C on Thu afternoon, min 6°C on Tue night). Wind will be generally light.

Mount Si Weather (Days 3-6):

Mostly dry. Warm (max 24°C on Sun afternoon, min 10°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	9° C	Dry	Calm (0 kph at 341).
Snoqualmie Pass 30 km ESE 824m alt. 1 hour ago	5° C	-	Calm (0 kph at 327).
Renton 30 km WSW 160m alt. 42 minutes ago	9° C	Dry	Calm (0 kph at 28).
Black Diamond 32 km SSW 192m alt. 48 minutes ago		-	Calm (2 kph at 0).
Renton Airport 36 km WSW 218m alt. 3 hours ago	12° C	Dry and cloudy.	Calm (0 kph at 0).	16 km Low: overcast
Grotto wx 39 km NE 1101m alt. 1 hour ago	3° C	Dry	Calm (0 kph at 70).
Auburn 39 km SW 119m alt. 1 hour ago	8° C	Dry	Calm (0 kph at 63).
Stampede Pass Airport 40 km SE 628m alt. 2 hours ago	2° C	Light rain .	Wind obs. (6 kph from 1 degs) was rejected.	1 km
Woodinville 43 km WNW 137.2m alt. 43 minutes ago	4° C	Dry	Calm (5 kph at 356).
Seattl / oeing Airport 44 km WSW 218m alt. 3 hours ago	12° C	Dry and cloudy.	Light winds from the WNW (7 kph at 300).	16 km Low: overcast

* 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.