– Lat/Long: 47.51° N 121.74° W

Mount Si
Weather Forecast, United States
Issued: 4 am Sat 22 Aug Local Time
Updates in:
hr min s
Update imminent

Issued: 4 am Sat 22 Aug Local Time

Updates in:

hr min s

Update imminent

2 Mount Si Elevations: 2 Forecast Elevations:

	Days 1–3 Weather Summary Some drizzle, heaviest during Sun morning. Warm (max 25°C on Mon afternoon, min 13°C on Sat night). Wind will be generally light.									Days 4–6 Weather Summary Mostly dry. Warm (max 28°C on Tue afternoon, min 11°C on Thu night). Wind will be generally light.
	Saturday 22			Sunday 23			Monday 24			Tuesday 25			Wednesday 26			Thursday 27
	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	some clouds	rain shwrs	rain shwrs	light rain	rain shwrs	clear	clear	clear	clear	clear	clear	clear	clear	clear	clear	some clouds	rain shwrs	rain shwrs
Cloud base (m)	600	600	700	700	950						4400		9600	9350		900	1750	1650
km/h	WSW	W	SW	WSW	NW	NE	NNW	NW	ESE	WNW	WNW	SSW	W	WSW	SSE	WSW	W	SE
See all weather maps
cm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
mm	—	0.1	0.2	1	0.1	—	—	—	—	—	—	—	—	—	—	—	0.2	0.2
max °C	17	20	17	14	19	16	21	25	20	26	28	24	20	23	19	17	18	16
min °C	16	19	13	13	17	14	16	25	19	21	28	15	16	22	12	14	18	11
chill °C	16	19	13	13	17	14	16	25	19	21	28	15	16	22	12	14	18	11

Freezing level m	4050	3550	3250	3300	3600	4100	4050	4150	4150	4200	4350	4200	4150	4050	3800	3250	3400	3450

	6:11	—	—	6:13	—	—	6:13	—	—	6:15	—	—	6:16	—	—	6:18	—	—
	—	—	8:07	—	—	8:05	—	—	8:02	—	—	8:00	—	7:59	—	—	7:57	—

Mount Si Weather (Days 0-3):

The weather forecast for Mount Si is: Some drizzle, heaviest during Sun morning. Warm (max 25°C on Mon afternoon, min 13°C on Sat night). Wind will be generally light.

Mount Si Weather (Days 3-6):

Mostly dry. Warm (max 28°C on Tue afternoon, min 11°C on Thu 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
Renton 30 km WSW 160m alt. 3 hours ago	15°C	Dry	Calm (2 kph at 235).
Black Diamond 32 km SSW 192m alt. 2 hours ago		-	Calm (0 kph at 0).
Renton Airport 36 km WSW 218m alt. 2 hours ago	17°C	Dry and cloudy.	Light winds from the S (9 kph at 180).	16 km Low: overcast
Auburn 39 km SW 119m alt. 1 hour ago	16°C	Dry	Calm (0 kph at 232).
SHIP10236 43 km W 15m alt. 57 minutes ago				- km
Seattl / oeing Airport 44 km WSW 218m alt. 2 hours ago	16°C	Dry and cloudy.	Light winds from the SSW (9 kph at 210).	16 km Low: overcast
Seattle Tacoma International Airport 44 km WSW 218m alt. 2 hours ago	15°C	Dry and cloudy.	Light winds from the SSW (11 kph at 200).	16 km Low: overcast
BUOY-EBSW1 46 km W 3m alt. 1 hour ago
Snohomish 49 km NW 196m alt. 1 hour ago	16°C	Dry	Calm (5 kph at 256).
Seattle 49 km WSW 100m alt. 48 minutes ago	26°C	-	Calm (0 kph at 343).

* 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.