– Lat/Long: 47.51° N 121.74° W

Mount Si
Weather Forecast, United States
Issued: 4 am Tue 14 Jul Local Time
Updates in:
hr min s
Update imminent

Issued: 4 am Tue 14 Jul Local Time

Updates in:

hr min s

Update imminent

2 Mount Si Elevations: 2 Forecast Elevations:

	Days 1–3 Weather Summary Light rain (total 6mm), mostly falling on Thu afternoon. Warm (max 26°C on Wed afternoon, min 11°C on Thu night). Wind will be generally light.									Days 4–6 Weather Summary Mostly dry. Warm (max 26°C on Sun afternoon, min 12°C on Fri night). Wind will be generally light.
	Tuesday 14			Wednesday 15			Thursday 16			Friday 17			Saturday 18			Sunday 19
	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	clear	clear	some clouds	clear	rain shwrs	rain shwrs	light rain	light rain	rain shwrs	some clouds	clear	clear	clear	clear	clear	clear	clear	clear
km/h	W	WNW	SE	NW	N	NE	WSW	WSW	SE	W	WNW	ENE	NW	NW	NE	NW	NW	E
See all weather maps
cm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
mm	—	—	—	—	0.1	0.3	1.6	4	0.3	—	—	—	—	—	—	—	—	—
max °C	22	25	22	23	26	22	17	15	13	16	21	18	19	23	20	22	26	23
min °C	18	24	16	19	25	15	15	15	11	13	20	12	15	22	15	18	25	18
chill °C	18	24	16	19	25	15	15	15	11	13	20	12	15	22	15	18	25	18

Freezing level m	4250	4300	4150	4000	4050	4100	3850	3950	3800	3800	3950	4050	4100	4150	4350	4400	4450	4400
Cloud base (m)					8800		500	550	850	500	2100

	5:22	—	—	5:24	—	—	5:24	—	—	5:26	—	—	5:26	—	—	5:28	—	—
	—	—	9:00	—	—	9:00	—	—	8:59	—	—	8:58	—	—	8:57	—	—	8:55

Mount Si Weather (Days 0-3):

The weather forecast for Mount Si is: Light rain (total 6mm), mostly falling on Thu afternoon. Warm (max 26°C on Wed afternoon, min 11°C on Thu night). Wind will be generally light.

Mount Si Weather (Days 3-6):

Mostly dry. Warm (max 26°C on Sun afternoon, min 12°C on Fri 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. 46 minutes ago	22° C	Dry	Calm (0 kph at 337).
Snoqualmie Pass 30 km ESE 824m alt. 1 hour ago	18° C	-	Calm (0 kph at 62).
Renton 30 km WSW 160m alt. 1 hour ago	18° C	Dry	Calm (0 kph at 82).
Grotto wx 35 km NE 321m alt. 1 hour ago	13° C	Dry	Calm (0 kph at 148).
Renton Airport 36 km WSW 218m alt. 2 hours ago	16° C	Clear	Calm (0 kph at 0).	16 km
Grotto wx 39 km NE 1101m alt. 46 minutes ago	19° C	Dry	Calm (0 kph at 55).
Auburn 39 km SW 119m alt. 1 hour ago		-	Calm (2 kph at 209).
Stampede Pass Airport 40 km SE 628m alt. 2 hours ago	13° C	Dry and partly cloudy.	Calm (0 kph at 0).	16 km Low: broken
SHIP3396 43 km W 15m alt. 3 hours ago				- km
SHIP8672 43 km W 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.