– Lat/Long: 47.51° N 121.74° W

Mount Si
Weather Forecast, United States
Issued: 4 pm Thu 25 Jun Local Time
Updates in:
hr min s
Update imminent

Issued: 4 pm Thu 25 Jun Local Time

Updates in:

hr min s

Update imminent

2 Mount Si Elevations: 2 Forecast Elevations:

	Days 1–4 Weather Summary Heavy rain (total 20mm), heaviest during Fri morning. Very mild (max 18°C on Thu afternoon, min 9°C on Fri night). Wind will be generally light.											Days 5–7 Weather Summary Light rain (total 2mm), mostly falling on Tue afternoon. Very mild (max 13°C on Tue afternoon, min 8°C on Tue night). Wind will be generally light.
	Thu 25		Friday 26			Saturday 27			Sunday 28			Monday 29			Tuesday 30
	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	cloudy	light rain	mod. rain	rain shwrs	rain shwrs	rain shwrs	rain shwrs	rain shwrs	light rain	light rain	light rain	light rain	light rain	rain shwrs	light rain	rain shwrs	rain shwrs
km/h	SW	SW	SW	SW	SW	WNW	NNW	WSW	WSW	W	WSW	WSW	SW	W	SW	WSW	WSW
See all weather maps
cm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
mm	—	3	5	4	6	2	0.9	0.2	0.1	0.2	0.4	0.2	0.1	0.2	0.1	0.3	0.4
max °C	18	14	12	13	12	10	13	13	10	12	11	10	12	12	10	13	13
min °C	17	11	11	12	9	9	12	10	9	11	10	10	11	10	10	11	8
chill °C	17	10	9	11	8	9	12	10	8	10	10	10	11	10	10	11	8

Freezing level m	2700	2850	2450	2500	2050	1950	2450	2850	3200	3300	3550	3450	3400	3400	3150	2950	2650
Cloud base (m)	2600	400	400	500	700	600	1500	1800	650	600	400	400	450	400	800	700	750

	—	—	5:11	—	—	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: Heavy rain (total 20mm), heaviest during Fri morning. Very mild (max 18°C on Thu afternoon, min 9°C on Fri night). Wind will be generally light.

Mount Si Weather (Days 3-6):

Light rain (total 2mm), mostly falling on Tue afternoon. Very mild (max 13°C on Tue afternoon, min 8°C on Tue 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. 1 hour ago	18° C	Dry	Calm (0 kph at 322).
Snoqualmie Pass 30 km ESE 824m alt. 1 hour ago	16° C	-	Calm (0 kph at 245).
Renton 30 km WSW 160m alt. 2 hours ago	17° C	Dry	Calm (5 kph at 222).
Grotto wx 35 km NE 321m alt. 37 minutes ago	18° C	Dry	Light winds from the WSW (13 kph at 258).
Renton Airport 36 km WSW 218m alt. 2 hours ago	19° C	Dry and cloudy.	Light winds from the SW (9 kph at 230).	16 km Low: overcast
Grotto wx 39 km NE 1101m alt. 46 minutes ago	12° C	Dry	Calm (2 kph at 123).
Auburn 39 km SW 119m alt. 3 hours ago	19° C	Dry	Calm (0 kph at 166).
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: few Mid: broken High: broken
Woodinville 43 km WNW 137.2m alt. 1 hour ago	18° C	Dry	Wind obs. (8 kph from 283 degs) was rejected.
Seattl / oeing Airport 44 km WSW 218m alt. 2 hours ago	18° C	Dry and cloudy.	Wind obs. (15 kph from 170 degs) was rejected.	16 km Low: overcast

* 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.