– Lat/Long: 47.51° N 121.74° W

Mount Si
Weather Forecast, United States
Issued: 9 am Thu 19 Feb Local Time
Updates in:
hr min s
Update imminent

Issued: 9 am Thu 19 Feb Local Time

Updates in:

hr min s

Update imminent

2 Mount Si Elevations: 2 Forecast Elevations:

	Days 1–3 Weather Summary Light rain (total 2mm), mostly falling on Sat afternoon. Freeze-thaw conditions (max 4°C on Sat morning, min -3°C on Thu night). Wind will be generally light.									Days 4–6 Weather Summary Heavy rain (total 67mm), heaviest during Mon morning. Later becoming colder with a dusting of snow on Tue night. Mild temperatures (max 8°C on Sun morning, min 2°C on Tue afternoon). Wind will be generally light.
	Thursday 19			Friday 20			Saturday 21			Sunday 22			Monday 23			Tuesday 24
	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	cloudy	some clouds	some clouds	some clouds	cloudy	cloudy	light rain	light rain	rain shwrs	rain shwrs	light rain	heavy rain	heavy rain	heavy rain	heavy rain	rain shwrs	mod. rain	light snow
km/h	NW	NW	S	SW	SW	ESE	ESE	ESE	ESE	ESE	SE	SSE	S	S	SW	SW	SW	SW
See all weather maps
cm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	2
mm	—	—	—	—	—	—	0.2	1.4	0.6	0.3	1.3	12	17	14	13	1.4	6	2
max °C	-1	-1	-2	1	1	1	4	4	4	8	5	4	5	4	4	4	3	2
min °C	-1	-2	-3	0	0	0	4	3	3	6	4	3	5	4	3	3	2	2
chill °C	-3	-2	-3	-3	-2	-2	0	-1	-2	2	1	1	3	2	0	-1	-2	-2

Freezing level m	400	400	0	550	700	600	1050	1200	1350	1700	1350	1200	1450	1450	1300	900	900	850
Cloud base (m)	450	400	1550	400	500	2050	2500	850	2350	1750	1700	450	400	400	400	500	550	400

	7:05	—	—	7:03	—	—	7:01	—	—	6:58	—	—	6:58	—	—	6:56	—	—
	—	5:36	—	—	5:37	—	—	5:39	—	—	5:40	—	—	5:43	—	—	5:44	—

Mount Si Weather (Days 0-3):

The weather forecast for Mount Si is: Light rain (total 2mm), mostly falling on Sat afternoon. Freeze-thaw conditions (max 4°C on Sat morning, min -3°C on Thu night). Wind will be generally light.

Mount Si Weather (Days 3-6):

Heavy rain (total 67mm), heaviest during Mon morning. Later becoming colder with a dusting of snow on Tue night. Mild temperatures (max 8°C on Sun morning, min 2°C on Tue 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. 1 hour ago	2° C	-	Calm (0 kph at 2).
Black Diamond 32 km SSW 192m alt. 39 minutes ago		-	Calm (5 kph at 0).
Renton Airport 36 km WSW 218m alt. 2 hours ago	3° C	Dry and cloudy.	Light winds from the NNE (13 kph at 20).	16 km Low: overcast
Auburn 39 km SW 119m alt. 58 minutes ago	4° C	Dry	Calm (5 kph at 47).
Stampede Pass Airport 40 km SE 628m alt. 2 hours ago	-5° C	Light snow.	Calm (0 kph at 0).	1 km Mid: scattered High: overcast
Seattl / oeing Airport 44 km WSW 218m alt. 2 hours ago	3° C	Dry and cloudy.	Light winds from the NNE (7 kph at 30).	16 km Low: broken Mid: overcast
Seattle Tacoma International Airport 44 km WSW 218m alt. 2 hours ago	2° C	Dry and partly cloudy.	Light winds from the NNE (19 kph at 20).	16 km Low: few Mid: broken High: broken
Snohomish 49 km NW 196m alt. 1 hour ago	-1° C	-	Wind obs. (14 kph from 148 degs) was rejected.
Seattle 49 km WSW 100m alt. 2 hours ago		-	Wind obs. (13 kph from 148 degs) was rejected.
SHIP3623 54 km W 15m alt. 2 hours ago			Light winds from the NW (17 kph at 320).	- 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.