– Lat/Long: 47.51° N 121.74° W

Mount Si
Weather Forecast, United States
Issued: 3 am Wed 28 Jan Local Time
Updates in:
hr min s
Update imminent

Issued: 3 am Wed 28 Jan Local Time

Updates in:

hr min s

Update imminent

2 Mount Si Elevations: 2 Forecast Elevations:

	Days 1–3 Weather Summary Heavy rain (total 39mm), heaviest during Wed night. Mild temperatures (max 8°C on Thu night, min 5°C on Wed morning). Wind will be generally light.									Days 4–6 Weather Summary Moderate rain (total 11mm), heaviest on Sun afternoon. Very mild (max 10°C on Sat morning, min 3°C on Mon night). Wind will be generally light.
	Wednesday 28			Thursday 29			Friday 30			Saturday 31			Sunday 1			Monday 2
	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	rain shwrs	light rain	heavy rain	mod. rain	light rain	light rain	light rain	mod. rain	rain shwrs	light rain	some clouds	some clouds	light rain	mod. rain	rain shwrs	clear	some clouds	clear
km/h	SSW	SSW	S	SSE	SSE	SE	S	SSW	SE	SE	ESE	ESE	SSW	SSW	SW	SSW	WNW	E
See all weather maps
cm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
mm	1.5	4	15	6	0.2	3	1.7	6	0.8	0.1	—	—	1.2	8	1.3	—	—	—
max °C	6	5	6	6	7	8	7	7	8	10	10	8	8	6	6	7	7	4
min °C	5	5	6	6	7	7	7	6	7	9	8	7	7	6	4	6	4	3
chill °C	4	3	4	4	6	6	5	4	6	8	6	5	6	4	4	6	4	3

Freezing level m	1400	1500	1750	1750	2000	2150	1950	1950	2400	2600	2600	2550	1950	1500	1250	1250	1450	1550
Cloud base (m)	450	550	450	450	500	500	2550	600	500	2250	2200	5650	3100	650	600	700	950	9100

	7:37	—	—	7:35	—	—	7:35	—	—	7:33	—	—	7:31	—	—	7:31	—	—
	—	5:01	—	—	5:04	—	—	5:05	—	—	5:07	—	—	5:07	—	—	5:09	—

Mount Si Weather (Days 0-3):

The weather forecast for Mount Si is: Heavy rain (total 39mm), heaviest during Wed night. Mild temperatures (max 8°C on Thu night, min 5°C on Wed morning). Wind will be generally light.

Mount Si Weather (Days 3-6):

Moderate rain (total 11mm), heaviest on Sun afternoon. Very mild (max 10°C on Sat morning, min 3°C on Mon 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
Renton Airport 36 km WSW 218m alt. 2 hours ago	7° C	Clear	Wind obs. (6 kph from 120 degs) was rejected.	16 km
Auburn 39 km SW 119m alt. 38 minutes ago	2° C	-	Calm (0 kph at 101).
Stampede Pass Airport 40 km SE 628m alt. 2 hours ago	-1° C	Moderate rain .	Wind obs. (6 kph from 1 degs) was rejected.	16 km Low: scattered
Seattl / oeing Airport 44 km WSW 218m alt. 2 hours ago	7° C	Dry and partly cloudy.	Light winds from the SE (15 kph at 140).	16 km Low: few Mid: scattered
Seattle Tacoma International Airport 44 km WSW 218m alt. 2 hours ago	7° C	Dry and partly cloudy.	Light winds from the SSE (11 kph at 160).	16 km Low: few Mid: scattered High: broken
Snohomish 49 km NW 196m alt. 2 hours ago	8° C	Dry	Calm (3 kph at 148).
Seattle 49 km WSW 100m alt. 2 hours ago	6° C	-	Wind obs. (13 kph from 310 degs) was rejected.
SHIP2949 54 km W 15m alt. 3 hours ago			Light winds from the SE (10 kph at 130).	- km
SHIP4391 54 km W 15m alt. 2 hours ago			Light winds from the SE (10 kph at 140).	- km
SHIP4888 54 km W 15m alt. 3 hours ago			Light winds from the SE (13 kph at 140).	- 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.