– Lat/Long: 47.51° N 121.74° W

Mount Si
Weather Forecast, United States
Issued: 4 am Mon 24 Aug Local Time
Updates in:
hr min s
Update imminent

Issued: 4 am Mon 24 Aug Local Time

Updates in:

hr min s

Update imminent

2 Mount Si Elevations: 2 Forecast Elevations:

	Days 1–3 Weather Summary Mostly dry. Warm (max 28°C on Tue afternoon, min 13°C on Wed night). Wind will be generally light.									Days 4–6 Weather Summary Moderate rain (total 15mm), heaviest on Sat morning. Very mild (max 19°C on Thu afternoon, min 10°C on Fri night). Wind will be generally light.
	Monday 24			Tuesday 25			Wednesday 26			Thursday 27			Friday 28			Saturday 29
	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	clear	some clouds	rain shwrs	rain shwrs	clear	rain shwrs	rain shwrs	rain shwrs	mod. rain	light rain	rain shwrs
Cloud base (m)			8550	9550	4150		9200		7200	1800	1800	9300	750	750	750	450	750	600
km/h	N	NNW	ESE	WSW	W	ESE	W	WSW	S	WSW	W	ESE	WSW	W	SW	SW	W	SW
See all weather maps
cm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
mm	—	—	—	—	—	—	—	—	—	0.7	0.9	—	0.1	0.3	4	6	2	0.9
max °C	23	26	21	26	28	22	20	23	18	15	19	17	14	16	13	10	13	11
min °C	17	26	20	22	28	16	17	22	13	14	16	11	12	14	10	10	12	10
chill °C	17	26	20	22	28	16	17	22	13	14	16	11	12	14	8	9	12	9

Freezing level m	4050	4150	4150	4200	4250	4200	4050	4000	3550	3050	3400	3450	3050	2650	2450	2100	2350	2400

	6:13	—	—	6:15	—	—	6:16	—	—	6:18	—	—	6:18	—	—	6:20	—	—
	—	—	8:02	—	—	8:00	—	7:59	—	—	7:57	—	—	7:54	—	—	7:52	—

Mount Si Weather (Days 0-3):

The weather forecast for Mount Si is: Mostly dry. Warm (max 28°C on Tue afternoon, min 13°C on Wed night). Wind will be generally light.

Mount Si Weather (Days 3-6):

Moderate rain (total 15mm), heaviest on Sat morning. Very mild (max 19°C on Thu afternoon, min 10°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
Renton 30 km WSW 160m alt. 2 hours ago	13°C	Dry	Calm (0 kph at 18).
Black Diamond 32 km SSW 192m alt. 1 hour ago		-	Calm (0 kph at 0).
Renton Airport 36 km WSW 218m alt. 2 hours ago	15°C	Dry and partly cloudy.	Light winds from the NNW.(Wind varies from 006 to 009 degs) (13 kph at 340).	16 km Low: broken
Auburn 39 km SW 119m alt. 1 hour ago	17°C	Dry	Calm (0 kph at 80).
Monroe 44 km NW 80m alt. 1 hour ago		-	Calm (0 kph at 80).
Seattl / oeing Airport 44 km WSW 218m alt. 2 hours ago	15°C	Dry and partly cloudy.	Calm (0 kph at 0).	16 km Low: broken
Seattle Tacoma International Airport 44 km WSW 218m alt. 1 hour ago	14°C	Dry and partly cloudy.	Light winds from the N (17 kph at 10).	16 km Low: broken
BUOY-EBSW1 46 km W 3m alt. 1 hour ago
Snohomish 49 km NW 196m alt. 1 hour ago	10°C	Dry	Calm (0 kph at 218).
Seattle 49 km WSW 100m alt. 2 hours ago		-	Calm (5 kph at 286).

* 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.