– Lat/Long: 47.51° N 121.74° W

Mount Si
Weather Forecast, United States
Issued: 9 am Fri 30 Jan Local Time
Updates in:
hr min s
Update imminent

Issued: 9 am Fri 30 Jan Local Time

Updates in:

hr min s

Update imminent

2 Mount Si Elevations: 2 Forecast Elevations:

	Days 1–3 Weather Summary Moderate rain (total 17mm), heaviest on Fri afternoon. Very mild (max 12°C on Sat morning, min 5°C on Sun night). Wind will be generally light.									Days 4–6 Weather Summary Light rain (total 5mm), mostly falling on Mon morning. Very mild (max 16°C on Wed morning, min 5°C on Mon morning). Wind will be generally light.
	Friday 30			Saturday 31			Sunday 1			Monday 2			Tuesday 3			Wednesday 4
	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	light rain	mod. rain	light rain	light rain	some clouds	light rain	light rain	rain shwrs	rain shwrs	light rain	light rain	rain shwrs	some clouds	some clouds	some clouds	clear	clear	clear
km/h	S	SSW	SSW	SSE	SSE	SE	SSW	SW	SSW	SE	SSW	S	SE	SSE	SE	SSE	W	ESE
See all weather maps
cm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
mm	3	6	0.4	0.5	—	0.6	3	3	0.5	1.7	1.7	1.6	—	—	—	—	—	—
max °C	8	8	9	12	12	8	7	7	5	7	8	8	13	12	10	16	14	11
min °C	8	8	8	10	8	6	6	6	5	5	6	8	11	10	9	13	11	11
chill °C	5	6	7	9	6	5	3	4	4	3	4	8	10	9	8	13	11	11

Freezing level m	1950	2050	2250	2550	2450	2150	1600	1500	1400	1500	2000	2000	2850	2900	3250	3300	3000	3350
Cloud base (m)	2450	550	700	950	5100	3400	600	450	950	2050	650	550	5300	5350	5600			8900

	7:35	—	—	7:33	—	—	7:31	—	—	7:31	—	—	7:30	—	—	7:28	—	—
	—	5:05	—	—	5:07	—	—	5:07	—	—	5:09	—	—	5:10	—	—	5:13	—

Mount Si Weather (Days 0-3):

The weather forecast for Mount Si is: Moderate rain (total 17mm), heaviest on Fri afternoon. Very mild (max 12°C on Sat morning, min 5°C on Sun night). Wind will be generally light.

Mount Si Weather (Days 3-6):

Light rain (total 5mm), mostly falling on Mon morning. Very mild (max 16°C on Wed morning, min 5°C on Mon 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. 33 minutes ago	11° C	Dry	Wind obs. (6 kph from 162 degs) was rejected.
Black Diamond 32 km SSW 192m alt. 55 minutes ago	19° C	Dry	Calm (2 kph at 0).
Renton Airport 36 km WSW 218m alt. 2 hours ago	9° C	Moderate rain .	Light winds from the SSE (7 kph at 160).	8 km Mid: broken High: overcast
Auburn 39 km SW 119m alt. 50 minutes ago	10° C	Dry	Calm (0 kph at 60).
Stampede Pass Airport 40 km SE 628m alt. 2 hours ago	1° C	Moderate rain .	Calm (0 kph at 0).	0 km Mid: few High: overcast
Seattl / oeing Airport 44 km WSW 218m alt. 2 hours ago	9° C	Light rain .	Light winds from the S (9 kph at 180).	10 km Mid: few High: broken
Seattle Tacoma International Airport 44 km WSW 218m alt. 2 hours ago	9° C	Light rain .	Light winds from the ESE (19 kph at 110).	6 km Low: scattered Mid: overcast
Snohomish 49 km NW 196m alt. 51 minutes ago	11° C	Dry	Wind obs. (18 kph from 228 degs) was rejected.
Seattle 49 km WSW 100m alt. 40 minutes ago	13° C	-	Light winds from the S (8 kph at 174).
SHIP7643 54 km W 15m alt. 3 hours ago			Light winds from the ESE (8 kph at 120).	- 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.