– Lat/Long: 47.51° N 121.74° W

Mount Si
Weather Forecast, United States
Issued: 3 pm Mon 24 Nov Local Time
Updates in:
hr min s
Update imminent

Issued: 3 pm Mon 24 Nov Local Time

Updates in:

hr min s

Update imminent

2 Mount Si Elevations: 2 Forecast Elevations:

	Days 1–4 Weather Summary Heavy rain (total 33mm), heaviest during Tue afternoon. Mild temperatures (max 8°C on Wed morning, min 2°C on Mon night). Wind will be generally light.											Days 5–7 Weather Summary Heavy rain (total 56mm), heaviest during Thu night. Mild temperatures (max 8°C on Thu afternoon, min 1°C on Sat night). Winds decreasing (fresh winds from the SSW on Thu afternoon, calm by Fri night).
	Mon 24		Tuesday 25			Wednesday 26			Thursday 27			Friday 28			Saturday 29
	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	light rain	light rain	light rain	heavy rain	mod. rain	cloudy	cloudy	light rain	light rain	mod. rain	heavy rain	light rain	light rain	heavy rain	light rain	rain shwrs	some clouds
km/h	SW	SE	ESE	SSE	S	SSE	SE	SE	S	S	WSW	WSW	SW	SSW	NNW	NNW	E
See all weather maps
cm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
mm	1.3	0.2	5	15	10	—	—	1.3	0.6	6	26	0.8	0.7	21	2	0.1	—
max°C	3	3	3	4	6	8	6	6	6	8	7	5	5	5	4	4	3
min°C	3	2	3	3	4	7	6	6	6	6	5	5	5	3	3	3	1
chill°C	1	1	1	1	2	7	5	4	3	2	3	3	4	3	3	3	-1

Freezing level (m)	1000	950	950	1350	1700	1950	2200	2300	2000	1650	1450	1400	1250	1350	1050	1100	1050
Cloud base (m)	450	750	2350	450	450	550	950	1600	700	600	450	450	450	400	400	400	600

	—	—	7:26	—	—	7:26	—	—	7:28	—	—	7:30	—	—	7:31	—	—
	4:22	—	—	4:21	—	—	4:20	—	—	4:20	—	—	4:19	—	—	4:17	—

Mount Si Weather (Days 0-3):

The weather forecast for Mount Si is: Heavy rain (total 33mm), heaviest during Tue afternoon. Mild temperatures (max 8°C on Wed morning, min 2°C on Mon night). Wind will be generally light.

Mount Si Weather (Days 3-6):

Heavy rain (total 56mm), heaviest during Thu night. Mild temperatures (max 8°C on Thu afternoon, min 1°C on Sat night). Winds decreasing (fresh winds from the SSW on Thu afternoon, calm by Fri night).

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. 32 minutes ago	6° C	Dry	Calm (0 kph at 218).
Black Diamond 32 km SSW 192m alt. 1 hour ago	13° C	Dry	Calm (2 kph at 267).
Renton Airport 36 km WSW 218m alt. 2 hours ago	8° C	Dry and cloudy.	Calm (0 kph at 0).	16 km Low: few Mid: overcast
Auburn 39 km SW 119m alt. 32 minutes ago	4° C	Dry	Calm (0 kph at 43).
Stampede Pass Airport 40 km SE 628m alt. 1 hour ago	-2° C	Dry and cloudy.	Calm (0 kph at 0).	13 km Low: scattered Mid: broken High: overcast
SHIP5074 42 km WSW 15m alt. 3 hours ago				- km
SHIP3640 42 km WSW 15m alt. 3 hours ago				- km
SHIP8999 42 km WSW 15m alt. 3 hours ago				- km
SHIP9767 42 km WSW 3m alt. 3 hours ago
Seattl / oeing Airport 44 km WSW 218m alt. 2 hours ago	8° C	Dry and partly cloudy.	Light winds from the S (9 kph at 170).	16 km Low: broken

* 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.