– Lat/Long: 47.51° N 121.74° W

Mount Si
Weather Forecast, United States
Issued: 9 am Wed 04 Feb Local Time
Updates in:
hr min s
Update imminent

Issued: 9 am Wed 04 Feb Local Time

Updates in:

hr min s

Update imminent

2 Mount Si Elevations: 2 Forecast Elevations:

	Days 1–3 Weather Summary Mostly dry. Very mild (max 17°C on Thu morning, min 8°C on Fri night). Wind will be generally light.									Days 4–6 Weather Summary Heavy rain (total 69mm), heaviest during Sat afternoon. Mild temperatures (max 9°C on Sat night, min 3°C on Mon afternoon). Wind will be generally light.
	Wednesday 4			Thursday 5			Friday 6			Saturday 7			Sunday 8			Monday 9
	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	cloudy	clear	clear	some clouds	some clouds	clear	clear	some clouds	some clouds	light rain	heavy rain	heavy rain	mod. rain	light rain	light rain	light rain	mod. rain	light rain
km/h	SE	SE	ESE	ESE	SE	SE	SSW	SSW	S	S	S	SSW	SW	SW	WSW	SW	SW	SSW
See all weather maps
cm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
mm	—	—	—	—	—	—	—	—	—	5	14	26	8	1	3	1.7	6	4
max °C	15	14	10	17	15	9	15	13	9	8	8	9	5	5	4	5	3	3
min °C	13	11	10	14	10	9	13	10	8	8	8	6	5	5	4	4	3	3
chill °C	13	10	9	14	9	8	13	10	7	6	6	4	3	4	2	1	0	1

Freezing level m	3600	3600	3800	3850	3750	3150	2850	2600	2350	2150	2450	2200	1350	1300	1100	1050	1050	1000
Cloud base (m)	4450	7900						6400	3800	1750	400	400	450	400	450	450	500	400

	7:28	—	—	7:26	—	—	7:26	—	—	7:24	—	—	7:22	—	—	7:20	—	—
	—	5:13	—	—	5:14	—	—	5:15	—	—	5:17	—	—	5:19	—	—	5:21	—

Mount Si Weather (Days 0-3):

The weather forecast for Mount Si is: Mostly dry. Very mild (max 17°C on Thu morning, min 8°C on Fri night). Wind will be generally light.

Mount Si Weather (Days 3-6):

Heavy rain (total 69mm), heaviest during Sat afternoon. Mild temperatures (max 9°C on Sat night, min 3°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	13° C	Dry	Calm (0 kph at 340).
Black Diamond 32 km SSW 192m alt. 1 hour ago	24° C	Dry	Wind obs. (13 kph from 55 degs) was rejected.
Renton Airport 36 km WSW 218m alt. 2 hours ago	14° C	Clear	Calm (0 kph at 0).	16 km
Auburn 39 km SW 119m alt. 1 hour ago	13° C	Dry	Calm (2 kph at 30).
Stampede Pass Airport 40 km SE 628m alt. 1 hour ago	1° C	Light rain .	Wind obs. (6 kph from 1 degs) was rejected.	1 km
SHIP4550 43 km W 15m alt. 3 hours ago			Light winds from the SSE (8 kph at 160).	- km
SHIP2583 43 km W 15m alt. 2 hours ago			Light winds from the S (10 kph at 180).	- km
SHIP1824 43 km W 15m alt. 3 hours ago			Calm (6 kph at 180).	- km
SHIP9904 43 km W 3m alt. 3 hours ago	14° C		Light winds from the SSE (8 kph at 160).
SHIP3164 43 km W 15m alt. 3 hours ago			Light winds from the SSE (8 kph at 160).	- 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.