– Lat/Long: 47.51° N 121.74° W

Mount Si
Weather Forecast, United States
Issued: 3 am Sun 01 Feb Local Time
Updates in:
hr min s
Update imminent

Issued: 3 am Sun 01 Feb Local Time

Updates in:

hr min s

Update imminent

2 Mount Si Elevations: 2 Forecast Elevations:

	Days 1–3 Weather Summary Moderate rain (total 13mm), heaviest on Sun morning. Very mild (max 13°C on Tue morning, min 5°C on Sun night). Wind will be generally light.									Days 4–6 Weather Summary Mostly dry. Very mild (max 17°C on Thu morning, min 7°C on Thu night). Wind will be generally light.
	Sunday 1			Monday 2			Tuesday 3			Wednesday 4			Thursday 5			Friday 6
	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	mod. rain	rain shwrs	rain shwrs	light rain	light rain	light rain	some clouds	some clouds	some clouds	some clouds	some clouds	clear	clear	clear	some clouds	some clouds	some clouds	rain shwrs
km/h	SSW	SW	S	SSE	SSW	SE	ESE	SE	SE	SE	S	ESE	ESE	ESE	SE	SW	SW	SW
See all weather maps
cm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
mm	8	1.7	0.6	1	0.9	0.8	—	—	—	—	—	—	—	—	—	—	—	0.7
max °C	7	7	6	7	7	9	13	11	8	16	15	10	17	15	10	13	11	9
min °C	6	6	5	6	6	7	10	9	8	12	10	9	13	10	7	11	9	8
chill °C	3	4	4	4	5	7	10	8	7	12	10	8	13	9	6	10	8	7

Freezing level m	1600	1500	1400	1750	1950	2250	3000	3250	3300	3250	3250	3500	3650	3700	3300	2650	2000	2200
Cloud base (m)	800	450	900	2450	800	450	8750	5900	5100	4350	4750			8200	7100	6600		450

	7:31	—	—	7:31	—	—	7:30	—	—	7:28	—	—	7:26	—	—	7:26	—	—
	—	5:07	—	—	5:09	—	—	5:10	—	—	5:13	—	—	5:14	—	—	5:15	—

Mount Si Weather (Days 0-3):

The weather forecast for Mount Si is: Moderate rain (total 13mm), heaviest on Sun morning. Very mild (max 13°C on Tue morning, min 5°C on Sun night). Wind will be generally light.

Mount Si Weather (Days 3-6):

Mostly dry. Very mild (max 17°C on Thu morning, min 7°C on Thu 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	8° C	Light rain.	Calm (0 kph at 339).
Black Diamond 32 km SSW 192m alt. 55 minutes ago	19° C	Dry	Wind obs. (8 kph from 360 degs) was rejected.
Renton Airport 36 km WSW 218m alt. 2 hours ago	8° C	Light rain .	Light winds from the S (9 kph at 190).	14 km Low: scattered Mid: overcast
Auburn 39 km SW 119m alt. 1 hour ago	4° C	Dry	Calm (0 kph at 199).
Stampede Pass Airport 40 km SE 628m alt. 2 hours ago	-1° C	Moderate rain .	Calm (0 kph at 0).	5 km Mid: broken High: broken
SHIP2872 43 km W 15m alt. 2 hours ago			Calm (6 kph at 180).	- km
SHIP5597 43 km W 15m alt. 3 hours ago			Light winds from the SSE (12 kph at 160).	- km
SHIP2140 43 km W 3m alt. 3 hours ago	9° C		Light winds from the SSE (11 kph at 160).
SHIP4539 43 km W 3m alt. 3 hours ago	9° C		Light winds from the SSE (11 kph at 160).
SHIP3641 43 km W 15m alt. 3 hours ago			Light winds from the SSE (12 kph at 160).	- 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.