– Lat/Long: 47.51° N 121.74° W

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

Issued: 4 am Wed 24 Jun Local Time

Updates in:

hr min s

Update imminent

2 Mount Si Elevations: 2 Forecast Elevations:

	Days 1–3 Weather Summary Moderate rain (total 16mm), heaviest on Fri morning. Warm (max 27°C on Wed afternoon, min 8°C on Fri night). Wind will be generally light.									Days 4–6 Weather Summary Light rain (total 4mm), mostly falling on Sat afternoon. Very mild (max 14°C on Mon afternoon, min 8°C on Sat morning). Wind will be generally light.
	Wednesday 24			Thursday 25			Friday 26			Saturday 27			Sunday 28			Monday 29
	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	some clouds	clear	clear	cloudy	cloudy	light rain	mod. rain	rain shwrs	rain shwrs	rain shwrs	rain shwrs	rain shwrs	cloudy	light rain	some clouds	rain shwrs	rain shwrs	light rain
km/h	WNW	WSW	S	SW	WSW	SW	SW	SW	SW	WSW	NW	W	WSW	WSW	W	W	W	W
See all weather maps
cm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
mm	—	—	—	—	—	3	5	4	5	1	1.4	0.5	—	0.1	—	0.1	0.2	0.2
max °C	24	27	21	15	19	13	11	13	11	10	13	13	10	12	12	12	14	13
min °C	21	26	12	14	17	10	10	12	8	8	12	9	9	11	10	11	14	10
chill °C	21	26	11	13	17	9	8	10	6	7	12	9	8	11	10	11	14	10

Freezing level m	3550	3400	3550	3300	2750	2700	2200	2300	1850	1950	2250	2600	2450	2900	3600	3550	3300	3300
Cloud base (m)			9200	6000	2350	400	400	750	1700	700	1450	1800	1550	800	600	500	750	550

	5:09	—	—	5:09	—	—	5:11	—	—	5:11	—	—	5:11	—	—	5:11	—	—
	—	—	9:07	—	—	9:07	—	—	9:07	—	—	9:07	—	—	9:07	—	—	9:07

Mount Si Weather (Days 0-3):

The weather forecast for Mount Si is: Moderate rain (total 16mm), heaviest on Fri morning. Warm (max 27°C on Wed afternoon, min 8°C on Fri night). Wind will be generally light.

Mount Si Weather (Days 3-6):

Light rain (total 4mm), mostly falling on Sat afternoon. Very mild (max 14°C on Mon afternoon, min 8°C on Sat morning). 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. 39 minutes ago	23° C	Dry	Calm (0 kph at 351).
Snoqualmie Pass 30 km ESE 824m alt. 44 minutes ago	20° C	-	Calm (0 kph at 58).
Renton 30 km WSW 160m alt. 1 hour ago	22° C	Dry	Calm (0 kph at 224).
Black Diamond 32 km SSW 192m alt. 2 hours ago		-	Calm (0 kph at 0).
Grotto wx 35 km NE 321m alt. 1 hour ago	18° C	Dry	Calm (2 kph at 288).
Renton Airport 36 km WSW 218m alt. 2 hours ago	21° C	Clear	Light winds from the S (11 kph at 180).	16 km
Grotto wx 39 km NE 1101m alt. 1 hour ago	18° C	Dry	Calm (0 kph at 99).
Auburn 39 km SW 119m alt. 41 minutes ago		-	Calm (0 kph at 105).
Stampede Pass Airport 40 km SE 628m alt. 2 hours ago	16° C	Clear	Wind obs. (6 kph from 220 degs) was rejected.	16 km
Seattl / oeing Airport 44 km WSW 218m alt. 2 hours ago	20° C	Clear	Light winds from the S (6 kph at 170).	16 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.