– Lat/Long: 47.51° N 121.74° W

Mount Si
Weather Forecast, United States
Issued: 10 pm Sun 07 Jun Local Time
Updates in:
hr min s
Update imminent

Issued: 10 pm Sun 07 Jun Local Time

Updates in:

hr min s

Update imminent

2 Mount Si Elevations: 2 Forecast Elevations:

	Days 1–4 Weather Summary Heavy rain (total 60mm), heaviest during Tue morning. Very mild (max 15°C on Mon afternoon, min 6°C on Tue night). Wind will be generally light.										Days 5–7 Weather Summary Mostly dry. Warm (max 24°C on Sat afternoon, min 6°C on Wed night). Wind will be generally light.
		Monday 8			Tuesday 9			Wednesday 10			Thursday 11			Friday 12			Saturday 13
	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	some clouds	cloudy	light rain	heavy rain	heavy rain	rain shwrs	light rain	rain shwrs	rain shwrs	clear	clear	clear	clear	clear	clear	clear	clear	clear	clear
km/h	ESE	ESE	SE	S	WSW	SW	SW	W	NNW	E	WNW	NW	NE	NW	NW	NE	NW	NNW	ESE
See all weather maps
cm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
mm	—	—	1.2	26	21	6	3	2	1.9	—	—	—	—	—	—	—	—	—	—
max °C	11	14	15	10	9	10	9	8	12	11	15	19	16	18	21	18	21	24	21
min °C	8	12	12	9	9	10	6	7	9	6	11	18	11	15	20	12	17	23	18
chill °C	8	12	11	8	8	8	3	5	8	6	11	18	11	15	20	12	17	23	18

Freezing level m	2250	2350	2400	2300	1950	2000	1550	1600	2050	3100	3350	3450	3650	3900	4000	4150	3850	4050	3900
Cloud base (m)	6150	2600	2250	350	400	450	450	450	700					9000

	—	5:09	—	—	5:09	—	—	5:09	—	—	5:09	—	—	5:09	—	—	5:09	—	—
	—	—	—	9:00	—	—	9:01	—	—	9:02	—	—	9:02	—	—	9:04	—	—	9:04

Mount Si Weather (Days 0-3):

The weather forecast for Mount Si is: Heavy rain (total 60mm), heaviest during Tue morning. Very mild (max 15°C on Mon afternoon, min 6°C on Tue night). Wind will be generally light.

Mount Si Weather (Days 3-6):

Mostly dry. Warm (max 24°C on Sat afternoon, min 6°C on Wed 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 10 closest weather stations

Weather Station	Temp.	Weather	Wind	Cloud Visibility Cloud / Visibility
Harman Heights wx 6 km SSW 251m alt. 41 minutes ago	8° C	Dry	Calm (0 kph at 79).
Snoqualmie Pass 30 km ESE 824m alt. 34 minutes ago	2° C	-	Calm (0 kph at 31).
Renton 30 km WSW 160m alt. 37 minutes ago	9° C	Dry	Calm (0 kph at 33).
Black Diamond 32 km SSW 192m alt. 1 hour ago		-	Calm (0 kph at 0).
Grotto wx 35 km NE 321m alt. 2 hours ago	8° C	Dry	Calm (3 kph at 28).
Renton Airport 36 km WSW 218m alt. 2 hours ago	12° C	Clear	Light winds from the S (6 kph at 190).	16 km
Grotto wx 39 km NE 1101m alt. 1 hour ago	2° C	-	Calm (0 kph at 16).
Auburn 39 km SW 119m alt. 39 minutes ago		-	Calm (0 kph at 51).
Stampede Pass Airport 40 km SE 628m alt. 2 hours ago	4° C	Clear	Calm (0 kph at 0).	16 km
SHIP7716 42 km WSW 3m alt. 2 hours ago

* 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.