– Lat/Long: 47.51° N 121.74° W

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

Issued: 3 am Sun 28 Dec Local Time

Updates in:

hr min s

Update imminent

2 Mount Si Elevations: 2 Forecast Elevations:

	Days 1–3 Weather Summary Mostly dry. Mild temperatures (max 8°C on Tue morning, min 1°C on Sun morning). Wind will be generally light.									Days 4–6 Weather Summary Light rain (total 5mm), mostly falling on Thu night. Very mild (max 10°C on Wed morning, min 5°C on Thu afternoon). Wind will be generally light.
	Sunday 28			Monday 29			Tuesday 30			Wednesday 31			Thursday 1			Friday 2
	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	clear	some clouds	some clouds	some clouds	some clouds	some clouds	cloudy	some clouds	some clouds	some clouds	clear	cloudy	cloudy	cloudy	light rain	cloudy	some clouds	light rain
km/h	NE	N	ENE	ENE	E	ESE	SE	SE	SE	SE	ESE	ESE	SE	SE	S	SE	ESE	SE
See all weather maps
cm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
mm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	4	—	—	0.7
max °C	4	2	2	7	5	3	8	7	5	10	8	6	8	6	6	9	8	7
min °C	1	2	1	4	4	3	5	5	5	7	6	6	7	5	5	8	7	6
chill °C	1	2	0	4	3	3	3	3	3	6	4	5	6	3	3	7	5	3

Freezing level m	700	1050	1650	2150	2600	3100	3300	3300	3250	3250	3300	3250	2950	2400	2050	2100	2150	2100
Cloud base (m)	800	1000	750	2500	3200	450	6900	6900	6950	6250	6250	6650	5750		750	600	2250	3100

	7:54	—	—	7:54	—	—	7:54	—	—	7:54	—	—	7:54	—	—	7:54	—	—
	—	4:22	—	—	4:22	—	—	4:23	—	—	4:24	—	—	4:25	—	—	4:27	—

Mount Si Weather (Days 0-3):

The weather forecast for Mount Si is: Mostly dry. Mild temperatures (max 8°C on Tue morning, min 1°C on Sun morning). Wind will be generally light.

Mount Si Weather (Days 3-6):

Light rain (total 5mm), mostly falling on Thu night. Very mild (max 10°C on Wed morning, min 5°C on Thu 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 5 closest weather stations

Weather Station	Temp.	Weather	Wind	Cloud Visibility Cloud / Visibility
Harman Heights wx 6 km SSW 251m alt. 2 hours ago	0° C	-	Calm (0 kph at 123).
Black Diamond 32 km SSW 192m alt. 1 hour ago		-	Calm (3 kph at 0).
Renton Airport 36 km WSW 218m alt. 2 hours ago	0° C	Dry and cloudy.	Calm (0 kph at 0).	16 km Low: overcast
Auburn 39 km SW 119m alt. 2 hours ago	8° C	Dry	Calm (2 kph at 65).
Stampede Pass Airport 40 km SE 628m alt. 1 hour ago	-7° C	Fog freezing -.	Light winds from the NE (6 kph at 50).	1 km
SHIP8704 42 km WSW 15m alt. 2 hours ago				- km
SHIP4178 42 km WSW 15m alt. 2 hours ago				- km
SHIP9078 42 km WSW 15m alt. 3 hours ago				- km
SHIP4630 42 km WSW 15m alt. 3 hours ago				- km
Seattl / oeing Airport 44 km WSW 218m alt. 2 hours ago	1° C	Dry and cloudy.	Light winds from the SSW (6 kph at 200).	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.