– Lat/Long: 47.51° N 121.74° W

Mount Si
Weather Forecast, United States
Issued: 10 pm Wed 01 Apr Local Time
Updates in:
hr min s
Update imminent

Issued: 10 pm Wed 01 Apr Local Time

Updates in:

hr min s

Update imminent

2 Mount Si Elevations: 2 Forecast Elevations:

	Days 1–4 Weather Summary A dusting of snow giving way to moderate rain (total 11mm) heaviest on Thu morning. Very mild (max 14°C on Sat afternoon, min 2°C on Thu morning). Wind will be generally light.										Days 5–7 Weather Summary Light rain (total 4mm), mostly falling on Tue afternoon. Warm (max 20°C on Mon afternoon, min 8°C on Sat night). Wind will be generally light.
		Thursday 2			Friday 3			Saturday 4			Sunday 5			Monday 6			Tuesday 7
	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	rain shwrs	light snow	light rain	rain shwrs	rain shwrs	rain shwrs	clear	clear	clear	some clouds	cloudy	cloudy	some clouds	some clouds	cloudy	some clouds	some clouds	light rain	light rain
km/h	SW	W	SW	S	WSW	NNW	ENE	NNW	N	ESE	ESE	ESE	ESE	SSE	W	SSW	SW	SW	WSW
See all weather maps
cm	—	3	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
mm	5	3	2	0.5	0.1	0.1	—	—	—	—	—	—	—	—	—	—	—	4	3
max °C	4	2	4	4	6	8	7	10	14	9	15	18	13	17	20	15	13	12	9
min °C	3	2	4	2	3	8	3	5	13	8	10	18	11	13	18	10	11	9	8
chill °C	0	0	3	0	3	8	2	5	13	7	9	18	10	13	18	9	10	8	5

Freezing level m	950	850	1100	950	1200	1450	1750	2500	2700	3000	3100	3150	3150	3050	2950	2700	2400	2150	1900
Cloud base (m)	400	450	450	600	700	850	1550		8250	5950	6550	6950		6650		1800	3250	1750	400

	—	6:43	—	—	6:41	—	—	6:39	—	—	6:37	—	—	6:35	—	—	6:33	—	—
	—	—	7:37	—	—	7:38	—	—	7:39	—	—	7:40	—	—	7:43	—	—	7:44	—

Mount Si Weather (Days 0-3):

The weather forecast for Mount Si is: A dusting of snow giving way to moderate rain (total 11mm) heaviest on Thu morning. Very mild (max 14°C on Sat afternoon, min 2°C on Thu morning). Wind will be generally light.

Mount Si Weather (Days 3-6):

Light rain (total 4mm), mostly falling on Tue afternoon. Warm (max 20°C on Mon afternoon, min 8°C on Sat 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. 46 minutes ago	6° C	Dry	Calm (0 kph at 117).
Renton 30 km WSW 160m alt. 1 hour ago	6° C	Dry	Calm (2 kph at 219).
Black Diamond 32 km SSW 192m alt. 1 hour ago		-	Calm (0 kph at 0).
Renton Airport 36 km WSW 218m alt. 2 hours ago	7° C	Dry and cloudy.	Light winds from the S (11 kph at 170).	16 km Low: broken Mid: overcast
Auburn 39 km SW 119m alt. 55 minutes ago	6° C	Dry	Calm (0 kph at 281).
Stampede Pass Airport 40 km SE 628m alt. 2 hours ago	-2° C	-	Wind obs. (7 kph from 1 degs) was rejected.	0.0 km
Seattl / oeing Airport 44 km WSW 218m alt. 3 hours ago	7° C	Dry and partly cloudy.	Light winds from the SSE (11 kph at 160).	16 km Low: broken Mid: broken High: broken
Seattle Tacoma International Airport 44 km WSW 218m alt. 3 hours ago	6° C	Dry and partly cloudy.	Light winds from the S (15 kph at 190).	16 km Low: broken
SHIP2762 48 km SW 15m alt. 2 hours ago				- km
Snohomish 49 km NW 196m alt. 52 minutes ago	7° C	Dry	Light winds from the S (6 kph at 169).

* 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.