– Lat/Long: 47.51° N 121.74° W

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

Issued: 3 pm Wed 28 Jan Local Time

Updates in:

hr min s

Update imminent

2 Mount Si Elevations: 2 Forecast Elevations:

	Days 1–4 Weather Summary Heavy rain (total 31mm), heaviest during Wed night. Very mild (max 11°C on Sat morning, min 5°C on Wed afternoon). Wind will be generally light.											Days 5–7 Weather Summary Moderate rain (total 20mm), heaviest on Sun afternoon. Very mild (max 10°C on Sat afternoon, min 4°C on Mon afternoon). Wind will be generally light.
	Wed 28		Thursday 29			Friday 30			Saturday 31			Sunday 1			Monday 2
	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	mod. rain	heavy rain	light rain	light rain	light rain	light rain	rain shwrs	rain shwrs	light rain	some clouds	rain shwrs	light rain	mod. rain	rain shwrs	light rain	mod. rain	rain shwrs
km/h	SSW	SSE	SSE	SSE	SE	SSE	SW	SE	SE	SE	SE	S	SW	SW	SSE	S	ESE
See all weather maps
cm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
mm	6	12	1.6	1	1.7	4	4	0.1	0.2	—	0.6	4	8	1.5	0.4	5	0.5
max °C	6	6	7	7	7	7	8	8	11	10	8	7	6	6	7	6	6
min °C	5	6	6	7	7	6	7	8	9	8	6	7	6	5	6	4	5
chill °C	3	4	4	6	5	4	6	8	8	7	4	5	3	3	6	2	5

Freezing level m	1550	1650	1850	1950	2200	1750	2050	2450	2500	2550	2250	1700	1550	1350	1700	1350	1550
Cloud base (m)	500	450	450	550	450	2500	450	850	2100	4150	3400	550	450	600	850	750	450

	—	—	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 31mm), heaviest during Wed night. Very mild (max 11°C on Sat morning, min 5°C on Wed afternoon). Wind will be generally light.

Mount Si Weather (Days 3-6):

Moderate rain (total 20mm), heaviest on Sun afternoon. Very mild (max 10°C on Sat afternoon, min 4°C on Mon afternoon). 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 67).
Black Diamond 32 km SSW 192m alt. 1 hour ago		-	Calm (2 kph at 0).
Renton Airport 36 km WSW 218m alt. 3 hours ago	9° C	Dry and cloudy.	Wind obs. (9 kph from 170 degs) was rejected.	16 km Low: few Mid: few High: overcast
Auburn 39 km SW 119m alt. 55 minutes ago	-2° C	-	Calm (0 kph at 206).
Stampede Pass Airport 40 km SE 628m alt. 2 hours ago	0° C	Moderate rain .	Calm (0 kph at 0).	1 km Mid: broken High: overcast
Seattl / oeing Airport 44 km WSW 218m alt. 3 hours ago	11° C	Dry and cloudy.	Light winds from the ESE (11 kph at 120).	16 km Low: overcast
Seattle Tacoma International Airport 44 km WSW 218m alt. 3 hours ago	9° C	Dry and cloudy.	Light winds from the SSE (11 kph at 150).	16 km Low: few Mid: overcast
Snohomish 49 km NW 196m alt. 54 minutes ago	7° C	Dry	Calm (3 kph at 29).
SHIP3795 51 km W 15m alt. 2 hours ago			Light winds from the SSW (12 kph at 200).	- km
SHIP3500 54 km W 15m alt. 4 hours ago			Calm (6 kph at 120).	- 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.