– Lat/Long: 47.51° N 121.74° W

Mount Si
Weather Forecast, United States
Issued: 10 pm Mon 06 Apr Local Time
Updates in:
hr min s
Update imminent

Issued: 10 pm Mon 06 Apr 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 15°C on Thu afternoon, min 3°C on Tue morning). Wind will be generally light.										Days 5–7 Weather Summary Moderate rain (total 16mm), heaviest on Sat morning. Very mild (max 17°C on Fri afternoon, min 7°C on Sat morning). Wind will be generally light.
		Tuesday 7			Wednesday 8			Thursday 9			Friday 10			Saturday 11			Sunday 12
	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	rain shwrs	clear	clear	clear	clear	clear	clear	clear	clear	clear	clear	clear	rain shwrs	heavy rain	light rain	some clouds	some clouds	rain shwrs	light rain
km/h	SW	WSW	W	ESE	WNW	WNW	ENE	NNW	NW	ESE	W	W	WSW	WSW	NNW	NE	W	WSW	SW
See all weather maps
cm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
mm	0.3	—	—	—	—	—	—	—	—	—	—	—	0.5	13	1.8	—	—	0.3	3
max °C	12	5	9	7	9	11	8	12	15	11	15	17	13	8	9	9	11	11	8
min °C	4	3	8	4	5	11	6	8	14	9	11	16	9	7	8	8	9	11	6
chill °C	1	0	7	4	5	10	6	8	14	9	11	16	9	6	8	8	9	10	4

Freezing level m	2000	1000	1600	1500	1850	2150	2450	2650	2800	2900	2900	2800	2650	2000	2150	2450	2300	2100	1400
Cloud base (m)		600	750	1600	750		9250	9100	9250	8500		2850	2550	450	500	500	700	750	400

	—	6:33	—	—	6:31	—	—	6:30	—	—	6:28	—	—	6:26	—	—	6:24	—	—
	—	—	7:44	—	—	7:45	—	—	7:46	—	—	7:49	—	—	7:50	—	—	7:51	—

Mount Si Weather (Days 0-3):

The weather forecast for Mount Si is: Mostly dry. Very mild (max 15°C on Thu afternoon, min 3°C on Tue morning). Wind will be generally light.

Mount Si Weather (Days 3-6):

Moderate rain (total 16mm), heaviest on Sat morning. Very mild (max 17°C on Fri afternoon, min 7°C on Sat morning). 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	11° C	Dry	Calm (0 kph at 331).
Snoqualmie Pass 30 km ESE 824m alt. 34 minutes ago	1° C	-	Calm (0 kph at 149).
Renton 30 km WSW 160m alt. 2 hours ago	9° C	Dry	Calm (2 kph at 30).
Black Diamond 32 km SSW 192m alt. 1 hour ago	19° C	Dry	Calm (3 kph at 0).
Grotto wx 35 km NE 321m alt. 1 hour ago	11° C	Dry	Light winds from the W (14 kph at 264).
Renton Airport 36 km WSW 218m alt. 2 hours ago	11° C	Clear	Light winds from the NNW (17 kph at 340).	16 km
Grotto wx 39 km NE 1101m alt. 40 minutes ago	4° C	Dry	Calm (0 kph at 306).
Auburn 39 km SW 119m alt. 41 minutes ago	12° C	Dry	Calm (3 kph at 202).
Stampede Pass Airport 40 km SE 628m alt. 2 hours ago	6° C	Clear	Wind obs. (11 kph from 1 degs) was rejected.	16 km
SHIP6002 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.