– Lat/Long: 47.51° N 121.74° W

Mount Si
Weather Forecast, United States
Issued: 10 am Tue 09 Jun Local Time
Updates in:
hr min s
Update imminent

Issued: 10 am Tue 09 Jun Local Time

Updates in:

hr min s

Update imminent

2 Mount Si Elevations: 2 Forecast Elevations:

	Days 1–3 Weather Summary Heavy rain (total 34mm), heaviest during Tue morning. Very mild (max 18°C on Thu afternoon, min 7°C on Tue night). Wind will be generally light.									Days 4–6 Weather Summary Mostly dry. Warm (max 28°C on Sun afternoon, min 11°C on Fri night). Wind will be generally light.
	Tuesday 9			Wednesday 10			Thursday 11			Friday 12			Saturday 13			Sunday 14
	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	rain shwrs	rain shwrs	light rain	rain shwrs	rain shwrs	clear	clear	clear	clear	some clouds	clear	clear	clear	clear	clear	clear	clear	clear
km/h	WSW	SW	WSW	NW	NNW	ENE	NW	NW	NE	NW	NW	NE	NW	NNW	ESE	SE	NW	ESE
See all weather maps
cm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
mm	20	6	5	2	0.8	—	—	—	—	—	—	—	—	—	—	—	—	—
max °C	10	10	8	9	13	12	15	18	15	16	19	16	20	23	20	26	28	24
min °C	9	10	7	7	11	7	11	18	9	13	18	11	16	23	17	21	28	19
chill °C	6	7	4	5	10	7	11	18	9	13	18	11	16	23	17	21	28	19

Freezing level m	1950	1900	1550	1700	2800	3350	3150	3250	3450	3500	3500	3450	3700	3850	3950	4050	4250	4400
Cloud base (m)	400	550	400	450	900		8600				8450				8700	9500		9100

	5:09	—	—	5:09	—	—	5:09	—	—	5:09	—	—	5:09	—	—	5:09	—	—
	—	—	9:01	—	—	9:02	—	—	9:02	—	—	9:04	—	—	9:04	—	—	9:05

Mount Si Weather (Days 0-3):

The weather forecast for Mount Si is: Heavy rain (total 34mm), heaviest during Tue morning. Very mild (max 18°C on Thu afternoon, min 7°C on Tue night). Wind will be generally light.

Mount Si Weather (Days 3-6):

Mostly dry. Warm (max 28°C on Sun afternoon, min 11°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
Harman Heights wx 6 km SSW 251m alt. 1 hour ago	14° C	Dry	Calm (0 kph at 335).
Snoqualmie Pass 30 km ESE 824m alt. 1 hour ago	11° C	-	Calm (0 kph at 169).
Renton 30 km WSW 160m alt. 51 minutes ago	16° C	Dry	Light winds from the SW (18 kph at 230).
Black Diamond 32 km SSW 192m alt. 40 minutes ago		-	Calm (5 kph at 282).
Grotto wx 35 km NE 321m alt. 3 hours ago	11° C	Dry	Light winds from the WNW (6 kph at 291).
Renton Airport 36 km WSW 218m alt. 2 hours ago	17° C	Light rain .	Fresh winds from the SSW (30 kph at 200).	16 km Low: few
Grotto wx 39 km NE 1101m alt. 58 minutes ago	6° C	Dry	Calm (3 kph at 202).
Auburn 39 km SW 119m alt. 1 hour ago		-	Calm (2 kph at 224).
Stampede Pass Airport 40 km SE 628m alt. 1 hour ago	5° C	Light rain .	Moderate winds from the W.(Wind varies from 006 to 009 degs) (20 kph at 270).	13 km Low: scattered Mid: broken High: overcast
SHIP4395 43 km W 3m alt. 3 hours ago	17° C

* 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.