– Lat/Long: 47.51° N 121.74° W

Mount Si
Weather Forecast, United States
Issued: 3 am Tue 30 Dec Local Time
Updates in:
hr min s
Update imminent

Issued: 3 am Tue 30 Dec Local Time

Updates in:

hr min s

Update imminent

2 Mount Si Elevations: 2 Forecast Elevations:

	Days 1–3 Weather Summary Some drizzle, heaviest during Thu night. Very mild (max 10°C on Wed morning, min 5°C on Tue afternoon). Wind will be generally light.									Days 4–6 Weather Summary Moderate rain (total 20mm), heaviest on Fri night. Mild temperatures (max 9°C on Fri morning, min 4°C on Sun night). Wind will be generally light.
	Tuesday 30			Wednesday 31			Thursday 1			Friday 2			Saturday 3			Sunday 4
	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	clear	clear	clear	some clouds	some clouds	some clouds	cloudy	cloudy	light rain	light rain	some clouds	rain shwrs	some clouds	light rain	light rain	light rain	rain shwrs	rain shwrs
km/h	SE	SE	SE	SE	SE	SE	SSE	ESE	SE	SE	ESE	SE	ESE	SE	S	SSE	SSE	SSE
See all weather maps
cm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
mm	—	—	—	—	—	—	—	—	1	0.1	—	7	—	3	4	1.5	0.4	4
max °C	9	7	5	10	8	5	8	7	6	9	8	7	8	7	5	7	6	4
min °C	6	5	5	7	6	5	7	5	5	7	8	5	7	6	5	5	5	4
chill °C	4	3	4	6	5	4	6	3	4	6	6	2	6	3	1	3	4	3

Freezing level m	3450	3550	3350	3250	3150	2900	2500	2200	2000	2300	2450	2300	1750	1800	1400	1400	1500	1350
Cloud base (m)	9100	6200	6250	5800	5000	4600	5400	4500	2500	550	650	2650	500	1650	600	400	400	500

	7:54	—	—	7:54	—	—	7:54	—	—	7:54	—	—	7:54	—	—	7:54	—	—
	—	4:23	—	—	4:24	—	—	4:25	—	—	4:27	—	—	4:28	—	—	4:29	—

Mount Si Weather (Days 0-3):

The weather forecast for Mount Si is: Some drizzle, heaviest during Thu night. Very mild (max 10°C on Wed morning, min 5°C on Tue afternoon). Wind will be generally light.

Mount Si Weather (Days 3-6):

Moderate rain (total 20mm), heaviest on Fri night. Mild temperatures (max 9°C on Fri morning, min 4°C on Sun 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 5 closest weather stations

Weather Station	Temp.	Weather	Wind	Cloud Visibility Cloud / Visibility
Harman Heights wx 6 km SSW 251m alt. 1 hour ago	1° C	-	Calm (0 kph at 350).
Renton Airport 36 km WSW 218m alt. 2 hours ago	1° C	Dry and partly cloudy.	Calm (0 kph at 0).	16 km Low: broken
Auburn 39 km SW 119m alt. 1 hour ago	3° C	Dry	Calm (2 kph at 115).
Stampede Pass Airport 40 km SE 628m alt. 2 hours ago	-6° C	-	Light winds from the N (7 kph at 1).	16 km
SHIP2542 42 km WSW 15m alt. 4 hours ago				- km
SHIP4828 42 km WSW 15m alt. 4 hours ago				- km
SHIP7996 42 km WSW 15m alt. 4 hours ago				- km
SHIP5298 42 km WSW 15m alt. 4 hours ago				- km
SHIP7581 42 km WSW 15m alt. 3 hours ago				- km
SHIP4097 42 km WSW 15m alt. 3 hours ago				- 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.