– Lat/Long: 47.51° N 121.74° W

Mount Si
Weather Forecast, United States
Issued: 10 am Thu 02 May Local Time
Updates in:
hr min s
Update imminent

Issued: 10 am Thu 02 May Local Time

Updates in:

hr min s

Update imminent

2 Mount Si Elevations: 2 Forecast Elevations:

	Days 1–3 Weather Summary Light rain (total 2mm), mostly falling on Sat afternoon. Very mild (max 16°C on Fri afternoon, min 5°C on Sat afternoon). Wind will be generally light.									Days 4–6 Weather Summary Heavy rain (total 35mm), heaviest during Sun afternoon. Mild temperatures (max 7°C on Tue afternoon, min 2°C on Tue night). Wind will be generally light.
	Thursday 2			Friday 3			Saturday 4			Sunday 5			Monday 6			Tuesday 7
	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	clear	rain shwrs	clear	cloudy	cloudy	cloudy	light rain	light rain	light rain	light rain	mod. rain	mod. rain	light rain	light rain	rain shwrs	rain shwrs	rain shwrs	rain shwrs
km/h	NW	NW	ESE	SE	SSE	ESE	ESE	WSW	WSW	SW	SW	WSW	WSW	W	WSW	WSW	W	SSW
Wave Height Map See all maps
cm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
mm	—	0.3	—	—	—	—	0.4	1.1	0.6	2.0	8	7	3	4	8	0.5	1.3	1.0
max°C	11	13	10	15	16	12	11	6	5	6	6	5	5	6	3	6	7	6
min°C	7	13	6	10	15	10	9	5	5	5	6	5	5	4	3	3	7	2
chill°C	7	12	4	9	14	8	9	5	5	4	4	1	1	2	1	3	6	2

Freezing level (m)	1750	2050	2050	2300	2250	2450	1950	1400	1350	1550	1500	1350	1200	1200	950	1150	1350	1000
Cloud base (m)	2750	2450		6450	2600	2100	1450	400	400	400	400	400	450	400	400	500	850	950

	5:47	—	—	5:45	—	—	5:43	—	—	5:41	—	—	5:41	—	—	5:39	—	—
	—	—	8:21	—	—	8:22	—	—	8:22	—	—	8:24	—	—	8:25	—	—	8:27

Mount Si Weather (Days 0-3):

The weather forecast for Mount Si is: Light rain (total 2mm), mostly falling on Sat afternoon. Very mild (max 16°C on Fri afternoon, min 5°C on Sat afternoon). Wind will be generally light.

Mount Si Weather (Days 3-6):

Heavy rain (total 35mm), heaviest during Sun afternoon. Mild temperatures (max 7°C on Tue afternoon, min 2°C on Tue 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 5 closest weather stations

Weather Station	Temp.	Weather	Wind	Cloud Visibility Cloud / Visibility
Snoqualmie Pass 30 km ESE 824m alt. 35 minutes ago	16° C	-	Calm (0 kph at 104).
Renton Airport 36 km WSW 218m alt. 2 hours ago	13° C	Clear	Light winds from the N (11 kph at 350).	16 km
Auburn 39 km SW 119m alt. 1 hour ago	24° C	Dry	Calm (0 kph at 257).
Stampede Pass Airport 40 km SE 628m alt. 2 hours ago	9° C	Clear	Calm (0 kph at 0).	16 km
Woodinville 43 km WNW 137.2m alt. 1 hour ago	13° C	Dry	Calm (5 kph at 89).

* 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.