– Lat/Long: 47.51° N 121.74° W

Mount Si
Weather Forecast, United States
Issued: 10 am Tue 23 Jun Local Time
Updates in:
hr min s
Update imminent

Issued: 10 am Tue 23 Jun 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 27°C on Tue afternoon, min 10°C on Thu night). Wind will be generally light.									Days 4–6 Weather Summary Moderate rain (total 12mm), heaviest on Fri afternoon. Very mild (max 13°C on Sat afternoon, min 7°C on Fri night). Wind will be generally light.
	Tuesday 23			Wednesday 24			Thursday 25			Friday 26			Saturday 27			Sunday 28
	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	some clouds	some clouds	some clouds	some clouds	clear	clear	some clouds	cloudy	light rain	light rain	light rain	light rain	rain shwrs	light rain	light rain	light rain	light rain	rain shwrs
km/h	WSW	NW	E	W	WSW	S	SW	WSW	SW	SSW	WSW	SSW	W	WNW	W	WSW	WSW	SW
See all weather maps
cm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
mm	—	—	—	—	—	—	—	—	0.9	3	4	3	0.8	0.6	0.4	0.3	0.1	0.1
max °C	26	27	24	23	25	20	15	18	15	11	12	9	9	13	12	10	12	11
min °C	23	26	18	20	25	11	13	17	10	11	11	7	8	13	9	9	11	10
chill °C	23	26	18	20	25	10	12	17	9	10	9	7	8	13	9	9	11	10

Freezing level m	3500	3750	3600	3400	3350	3450	3400	3050	2850	2400	2250	1700	1900	2300	2550	2800	3150	3550
Cloud base (m)	3500	6500	9300		6900	9000	6000		500	400	400	850	500	1550	1550	450	500	600

	5:09	—	—	5:09	—	—	5:09	—	—	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: Mostly dry. Warm (max 27°C on Tue afternoon, min 10°C on Thu night). Wind will be generally light.

Mount Si Weather (Days 3-6):

Moderate rain (total 12mm), heaviest on Fri afternoon. Very mild (max 13°C on Sat afternoon, min 7°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. 44 minutes ago	31° C	Dry	Calm (0 kph at 344).
Snoqualmie Pass 30 km ESE 824m alt. 48 minutes ago	30° C	-	Calm (2 kph at 20).
Renton 30 km WSW 160m alt. 1 hour ago	29° C	Dry	Calm (2 kph at 19).
Grotto wx 35 km NE 321m alt. 1 hour ago	30° C	Dry	Light winds from the W (18 kph at 269).
Renton Airport 36 km WSW 218m alt. 2 hours ago	27° C	Clear	Light winds from the NNW (15 kph at 330).	16 km
Grotto wx 39 km NE 1101m alt. 1 hour ago	27° C	Dry	Calm (2 kph at 87).
Auburn 39 km SW 119m alt. 56 minutes ago	40° C	Dry	Calm (2 kph at 355).
Stampede Pass Airport 40 km SE 628m alt. 2 hours ago	24° C	Clear	Calm (0 kph at 0).	16 km
SHIP4520 43 km W 15m alt. 3 hours ago				- km
SHIP5355 43 km W 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.