– Lat/Long: 47.51° N 121.74° W

Mount Si
Weather Forecast, United States
Issued: 10 pm Thu 23 Jul Local Time
Updates in:
hr min s
Update imminent

Issued: 10 pm Thu 23 Jul Local Time

Updates in:

hr min s

Update imminent

2 Mount Si Elevations: 2 Forecast Elevations:

	Days 1–4 Weather Summary Mostly dry. Warm (max 26°C on Fri afternoon, min 14°C on Fri night). Wind will be generally light.										Days 5–7 Weather Summary Light rain (total 3mm), mostly falling on Tue night. Warm (max 22°C on Mon afternoon, min 11°C on Tue night). Wind will be generally light.
		Friday 24			Saturday 25			Sunday 26			Monday 27			Tuesday 28			Wednesday 29
	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	clear	clear	clear	clear	clear	some clouds	some clouds	rain shwrs	rain shwrs	some clouds	clear	some clouds	clear	clear	some clouds	rain shwrs	rain shwrs	clear	clear
Cloud base (m)						1900	1850	800	1550	1950	850	2250			2150	750	9350
km/h	S	W	W	S	W	WSW	SW	WSW	W	SW	W	W	ESE	WSW	WSW	WSW	W	NW	NE
See all weather maps
cm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
mm	—	—	—	—	—	—	—	0.2	0.1	—	—	—	—	—	—	3	0.1	—	—
max °C	20	21	26	22	19	20	17	18	21	19	18	22	19	18	21	17	15	20	17
min °C	16	18	24	14	16	19	14	15	20	13	14	20	13	15	20	11	12	19	12
chill °C	16	18	24	14	16	19	14	15	20	13	14	20	13	15	20	11	12	19	12

Freezing level m	4300	4300	4150	3850	3500	3300	3800	3600	3650	3250	3150	3400	4000	3750	3350	3450	3850	4100	4400

	—	5:33	—	—	5:35	—	—	5:35	—	—	5:37	—	—	5:39	—	—	5:39	—	—
	—	—	—	8:51	—	—	8:50	—	—	8:49	—	—	8:47	—	—	8:45	—	—	8:45

Mount Si Weather (Days 0-3):

The weather forecast for Mount Si is: Mostly dry. Warm (max 26°C on Fri afternoon, min 14°C on Fri night). Wind will be generally light.

Mount Si Weather (Days 3-6):

Light rain (total 3mm), mostly falling on Tue night. Warm (max 22°C on Mon afternoon, min 11°C on Tue 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
Renton 30 km WSW 160m alt. 2 hours ago	18° C	Dry	Calm (0 kph at 14).
Renton Airport 36 km WSW 218m alt. 2 hours ago	21° C	Clear	Light winds from the SSW (9 kph at 210).	16 km
Auburn 39 km SW 119m alt. 1 hour ago	22° C	Dry	Calm (0 kph at 88).
Stampede Pass Airport 40 km SE 628m alt. 1 hour ago	13° C	Fog -.	Wind obs. (7 kph from 1 degs) was rejected.	0 km
Seattl / oeing Airport 44 km WSW 218m alt. 2 hours ago	19° C	Clear	Calm (0 kph at 0).	16 km
Seattle Tacoma International Airport 44 km WSW 218m alt. 2 hours ago	18° C	Clear	Light winds from the N (9 kph at 1).	16 km
BUOY-EBSW1 46 km W 3m alt. 58 minutes ago
Snohomish 49 km NW 196m alt. 1 hour ago	16° C	Dry	Calm (2 kph at 119).
Seattle 49 km WSW 100m alt. 34 minutes ago	28° C	-
BUOY-WPOW1 55 km W 3m alt. 46 minutes ago	15° C		Light winds from the NNE (9 kph at 30).

* 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.