– Lat/Long: 47.51° N 121.74° W

Mount Si
Weather Forecast, United States
Issued: 9 pm Mon 02 Feb Local Time
Updates in:
hr min s
Update imminent

Issued: 9 pm Mon 02 Feb Local Time

Updates in:

hr min s

Update imminent

2 Mount Si Elevations: 2 Forecast Elevations:

	Days 1–4 Weather Summary Mostly dry. Very mild (max 17°C on Wed morning, min 8°C on Mon night). Wind will be generally light.										Days 5–7 Weather Summary Heavy rain (total 24mm), heaviest during Sat night. Very mild (max 14°C on Fri morning, min 6°C on Sun afternoon). Wind will be generally light.
		Tuesday 3			Wednesday 4			Thursday 5			Friday 6			Saturday 7			Sunday 8
	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	rain shwrs	some clouds	some clouds	some clouds	some clouds	clear	clear	clear	clear	clear	some clouds	some clouds	light rain	light rain	light rain	heavy rain	light rain	light rain	heavy rain
km/h	SE	SE	SE	SE	SE	SE	ESE	ESE	ESE	SE	SSW	WSW	SSW	SSW	S	SSW	WSW	W	SW
See all weather maps
cm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
mm	0.5	—	—	—	—	—	—	—	—	—	—	—	0.9	1.9	1.5	16	2	1.3	11
max °C	9	13	11	11	17	14	10	17	15	9	14	12	10	10	9	8	7	7	5
min °C	8	11	9	9	13	10	9	13	10	9	13	9	9	8	8	7	7	6	3
chill °C	8	10	8	8	12	9	8	12	9	8	13	8	8	7	6	5	6	6	0

Freezing level m	2700	2950	3050	3000	3600	3500	3700	3800	3800	3200	2700	2150	2050	1950	2000	2150	1500	1400	1200
Cloud base (m)	450	7150	5600	3000	5000	9250			8100	8800	8650	2900	650	500	950	450	450	450	400

	—	7:30	—	—	7:28	—	—	7:26	—	—	7:26	—	—	7:24	—	—	7:22	—	—
	—	—	5:10	—	—	5:13	—	—	5:14	—	—	5:15	—	—	5:17	—	—	5:19	—

Mount Si Weather (Days 0-3):

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

Mount Si Weather (Days 3-6):

Heavy rain (total 24mm), heaviest during Sat night. Very mild (max 14°C on Fri morning, min 6°C on Sun 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	8° C	Dry	Calm (0 kph at 336).
Black Diamond 32 km SSW 192m alt. 49 minutes ago	12° C	Dry	Calm (0 kph at 0).
Renton Airport 36 km WSW 218m alt. 2 hours ago	11° C	Dry and cloudy.	Calm (0 kph at 0).	16 km Low: overcast
Auburn 39 km SW 119m alt. 51 minutes ago	-2° C	-	Calm (0 kph at 114).
Stampede Pass Airport 40 km SE 628m alt. 2 hours ago	4° C	Moderate rain .	Calm (0 kph at 0).	6 km Mid: few High: overcast
SHIP6866 43 km W 15m alt. 2 hours ago			Calm (2 kph at 0).	- km
SHIP7388 43 km W 15m alt. 3 hours ago			Calm (2 kph at 330).	- km
SHIP3454 43 km W 15m alt. 2 hours ago			Calm (2 kph at 220).	- km
SHIP2964 43 km W 15m alt. 3 hours ago			Calm (2 kph at 330).	- km
SHIP4600 43 km W 3m alt. 3 hours ago	13° C		Calm (2 kph at 170).

* 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.