– Lat/Long: 47.51° N 121.74° W

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

Issued: 3 pm Sun 01 Feb Local Time

Updates in:

hr min s

Update imminent

2 Mount Si Elevations: 2 Forecast Elevations:

	Days 1–4 Weather Summary Light rain (total 9mm), mostly falling on Sun afternoon. Very mild (max 15°C on Wed morning, min 4°C on Sun night). Wind will be generally light.											Days 5–7 Weather Summary Mostly dry. Very mild (max 16°C on Thu morning, min 7°C on Fri night). Wind will be generally light.
	Sun 1		Monday 2			Tuesday 3			Wednesday 4			Thursday 5			Friday 6
	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	light rain	rain shwrs	light rain	light rain	light rain	cloudy	some clouds	some clouds	clear	clear	clear	clear	clear	clear	clear	clear	clear
km/h	SW	S	SE	SW	SE	SE	SE	SE	SE	SE	ESE	ESE	ESE	SE	S	W	E
See all weather maps
cm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
mm	3	0.2	3	1.9	0.4	—	—	—	—	—	—	—	—	—	—	—	—
max °C	7	5	6	7	9	12	11	8	15	14	9	16	14	9	13	11	8
min °C	6	4	5	7	8	10	8	8	12	10	9	13	9	8	11	8	7
chill °C	4	3	3	7	8	9	7	7	12	9	8	12	8	7	11	8	7

Freezing level m	1550	1400	1300	2100	2400	3000	3200	3300	3250	3500	3600	3850	3800	3300	3100	2900	2900
Cloud base (m)	500	2000	1650	450	600		6400	5100	5750	8950	8250		7150		8700

	—	—	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: Light rain (total 9mm), mostly falling on Sun afternoon. Very mild (max 15°C on Wed morning, min 4°C on Sun night). Wind will be generally light.

Mount Si Weather (Days 3-6):

Mostly dry. Very mild (max 16°C on Thu morning, 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. 2 hours ago	9° C	Dry	Calm (0 kph at 71).
Black Diamond 32 km SSW 192m alt. 1 hour ago	18° C	Dry	Calm (0 kph at 0).
Renton Airport 36 km WSW 218m alt. 2 hours ago	10° C	Dry and partly cloudy.	Calm (0 kph at 0).	16 km Low: few Mid: scattered
Auburn 39 km SW 119m alt. 1 hour ago	1° C	-	Calm (0 kph at 201).
Stampede Pass Airport 40 km SE 628m alt. 1 hour ago	2° C	Moderate rain .	Wind obs. (11 kph from 1 degs) was rejected.	16 km Low: few Mid: overcast
SHIP3573 43 km W 3m alt. 3 hours ago	10° C		Light winds from the S (11 kph at 170).
SHIP2604 43 km W 15m alt. 2 hours ago			Light winds from the S (8 kph at 180).	- km
SHIP5829 43 km W 3m alt. 3 hours ago	10° C		Light winds from the S (11 kph at 170).
SHIP7300 43 km W 3m alt. 3 hours ago	10° C		Light winds from the S (11 kph at 170).
SHIP6728 43 km W 15m alt. 3 hours ago			Light winds from the S (12 kph at 170).	- 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.