– Lat/Long: 47.51° N 121.74° W

Mount Si
Weather Forecast, United States
Issued: 10 pm Sat 04 Jul Local Time
Updates in:
hr min s
Update imminent

Issued: 10 pm Sat 04 Jul Local Time

Updates in:

hr min s

Update imminent

2 Mount Si Elevations: 2 Forecast Elevations:

	Days 1–4 Weather Summary Mostly dry. Warm (max 24°C on Mon afternoon, min 10°C on Sat night). Wind will be generally light.										Days 5–7 Weather Summary Light rain (total 6mm), mostly falling on Wed afternoon. Warm (max 22°C on Fri afternoon, min 9°C on Wed night). Wind will be generally light.
		Sunday 5			Monday 6			Tuesday 7			Wednesday 8			Thursday 9			Friday 10
	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	clear	clear	clear	clear	clear	clear	clear	some clouds	some clouds	light rain	light rain	rain shwrs	rain shwrs	clear	clear	clear	clear	clear	clear
km/h	NNE	NW	NW	E	WNW	WNW	SSE	WSW	W	WSW	SW	SW	SW	W	NW	ESE	W	W	SSE
See all weather maps
cm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
mm	—	—	—	—	—	—	—	—	—	0.5	1.4	3	2	—	—	—	—	—	—
max °C	16	17	21	18	20	24	20	19	22	17	13	16	15	15	20	17	17	22	19
min °C	10	12	20	14	17	22	13	16	22	12	12	15	9	10	18	11	14	20	13
chill °C	10	12	20	14	17	22	13	16	22	12	11	15	8	10	18	11	14	20	13

Freezing level m	3850	3800	4000	4050	4000	4150	4150	4050	3900	2950	2750	3000	3450	3300	3500	3800	3700	3750	3950
Cloud base (m)						8650			7200	750	450	750	900	1550	2200

	—	5:16	—	—	5:16	—	—	5:16	—	—	5:18	—	—	5:18	—	—	5:20	—	—
	—	—	—	9:06	—	—	9:06	—	—	9:05	—	—	9:05	—	—	9:04	—	—	9:02

Mount Si Weather (Days 0-3):

The weather forecast for Mount Si is: Mostly dry. Warm (max 24°C on Mon afternoon, min 10°C on Sat night). Wind will be generally light.

Mount Si Weather (Days 3-6):

Light rain (total 6mm), mostly falling on Wed afternoon. Warm (max 22°C on Fri afternoon, min 9°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
North Bend 3 km SW 134m alt. 57 minutes ago		-	Calm (0 kph at 222).
Harman Heights wx 6 km SSW 251m alt. 47 minutes ago	12° C	Dry	Calm (0 kph at 13).
Snoqualmie Pass 30 km ESE 824m alt. 1 hour ago	8° C	-	Calm (0 kph at 317).
Renton 30 km WSW 160m alt. 1 hour ago	14° C	Dry	Wind obs. (6 kph from 0 degs) was rejected.
Grotto wx 35 km NE 321m alt. 53 minutes ago	13° C	Dry	Light winds from the W (8 kph at 261).
Renton Airport 36 km WSW 218m alt. 3 hours ago	16° C	Clear	Light winds from the N (9 kph at 350).	16 km
Grotto wx 39 km NE 1101m alt. 2 hours ago	7° C	Dry	Calm (0 kph at 9).
Auburn 39 km SW 119m alt. 2 hours ago	21° C	Dry	Calm (0 kph at 86).
Stampede Pass Airport 40 km SE 628m alt. 3 hours ago	9° C	Clear	Wind obs. (6 kph from 1 degs) was rejected.	16 km
SHIP9445 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.