– Lat/Long: 47.51° N 121.74° W

Mount Si
Weather Forecast, United States
Issued: 4 am Fri 26 Jun Local Time
Updates in:
hr min s
Update imminent

Issued: 4 am Fri 26 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. Very mild (max 14°C on Sat afternoon, min 9°C on Fri night). Wind will be generally light.									Days 4–6 Weather Summary Some drizzle, heaviest during Wed morning. Very mild (max 14°C on Mon afternoon, min 7°C on Wed night). Wind will be generally light.
	Friday 26			Saturday 27			Sunday 28			Monday 29			Tuesday 30			Wednesday 1
	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	light rain	rain shwrs	rain shwrs	light rain	rain shwrs	rain shwrs	light rain	light rain	light rain	light rain	rain shwrs	cloudy	light rain	light rain	light rain	light rain	light rain	rain shwrs
km/h	SW	SW	SW	WSW	NW	WSW	WSW	WSW	W	W	WNW	WSW	SW	WSW	SW	SSW	SW	S
See all weather maps
cm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
mm	4	4	5	1.6	1	0.3	0.1	0.2	0.4	0.2	0.2	—	0.2	0.2	0.2	0.4	0.2	0.1
max °C	12	12	12	10	14	13	11	12	11	11	14	14	11	12	12	8	10	10
min °C	11	12	9	9	13	10	10	12	10	10	12	10	10	12	8	8	9	7
chill °C	10	11	8	8	13	10	9	11	10	10	12	10	10	12	6	6	8	6

Freezing level m	2450	2450	2050	1950	2350	2600	3100	2950	3550	3500	3400	3300	3300	3150	2650	1800	2100	2200
Cloud base (m)	400	450	700	850	1700	2000	700	800	450	400	600	600	450	650	700	400	450	1750

	5:11	—	—	5:11	—	—	5:11	—	—	5:11	—	—	5:11	—	—	5:13	—	—
	—	—	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. Very mild (max 14°C on Sat afternoon, min 9°C on Fri night). Wind will be generally light.

Mount Si Weather (Days 3-6):

Some drizzle, heaviest during Wed morning. Very mild (max 14°C on Mon afternoon, min 7°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
Harman Heights wx 6 km SSW 251m alt. 2 hours ago	14° C	Dry	Calm (0 kph at 165).
Snoqualmie Pass 30 km ESE 824m alt. 45 minutes ago	12° C	-	Calm (0 kph at 41).
Renton 30 km WSW 160m alt. 1 hour ago	13° C	Dry	Calm (0 kph at 167).
Grotto wx 35 km NE 321m alt. 1 hour ago	12° C	Dry	Calm (2 kph at 258).
Renton Airport 36 km WSW 218m alt. 1 hour ago	15° C	Dry and cloudy.	Light winds from the S (11 kph at 180).	16 km Low: scattered Mid: overcast
Grotto wx 39 km NE 1101m alt. 1 hour ago	8° C	Dry	Calm (0 kph at 216).
Auburn 39 km SW 119m alt. 1 hour ago	19° C	Dry	Calm (0 kph at 243).
Stampede Pass Airport 40 km SE 628m alt. 2 hours ago	8° C	Light rain .	Calm (0 kph at 0).	0 km
SHIP5164 42 km WSW 15m alt. 3 hours ago				- km
SHIP6321 42 km WSW 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.