– Lat/Long: 47.51° N 121.74° W

Mount Si
Weather Forecast, United States
Issued: 4 am Thu 23 Jul Local Time
Updates in:
hr min s
Update imminent

Issued: 4 am Thu 23 Jul Local Time

Updates in:

hr min s

Update imminent

2 Mount Si Elevations: 2 Forecast Elevations:

	Days 1–3 Weather Summary Some drizzle, heaviest during Thu morning. Warm (max 26°C on Fri afternoon, min 12°C on Sat night). Wind will be generally light.									Days 4–6 Weather Summary Mostly dry. Warm (max 22°C on Sun afternoon, min 12°C on Sun night). Wind will be generally light.
	Thursday 23			Friday 24			Saturday 25			Sunday 26			Monday 27			Tuesday 28
	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	light rain	rain shwrs	clear	clear	clear	clear	clear	some clouds	rain shwrs	clear	some clouds	rain shwrs	rain shwrs	clear	clear	clear	clear	clear
Cloud base (m)	400	550						1800		850	2000	2900	850
km/h	W	W	SSE	W	WNW	S	W	WSW	SSE	W	WSW	S	W	W	SE	W	W	E
See all weather maps
cm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
mm	1.6	0.2	—	—	—	—	—	—	0.1	—	—	0.1	0.1	—	—	—	—	—
max °C	18	22	21	22	26	22	18	20	17	19	22	18	18	22	20	18	22	19
min °C	17	19	16	18	25	14	16	19	12	15	21	12	14	21	13	16	20	13
chill °C	17	19	16	18	25	14	16	19	12	15	21	12	14	21	13	16	20	13

Freezing level m	4450	4400	4450	4300	4200	3800	3450	3200	3750	3600	3650	3450	3900	3950	3900	3900	3850	4150

	5:33	—	—	5:33	—	—	5:35	—	—	5:35	—	—	5:37	—	—	5:39	—	—
	—	—	8:52	—	—	8:51	—	—	8:50	—	—	8:49	—	—	8:47	—	—	8:45

Mount Si Weather (Days 0-3):

The weather forecast for Mount Si is: Some drizzle, heaviest during Thu morning. Warm (max 26°C on Fri afternoon, min 12°C on Sat night). Wind will be generally light.

Mount Si Weather (Days 3-6):

Mostly dry. Warm (max 22°C on Sun afternoon, min 12°C on Sun 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. 3 hours ago	17° C	Dry	Calm (5 kph at 196).
Renton Airport 36 km WSW 218m alt. 2 hours ago	20° C	-	Light winds from the S (13 kph at 190).	16 km Low: few
Auburn 39 km SW 119m alt. 3 hours ago	21° C	Dry	Calm (0 kph at 0).
Stampede Pass Airport 40 km SE 628m alt. 2 hours ago	15° C	Fog -.	Light winds from the W (6 kph at 270).	0 km
SHIP2320 43 km W 15m alt. 2 hours ago				- km
SHIP1406 43 km W 15m alt. 1 hour ago				- km
SHIP7591 43 km W 3m alt. 1 hour ago	18° C
SHIP6661 43 km W 15m alt. 2 hours ago				- km
SHIP1753 43 km W 15m alt. 2 hours ago				- km
SHIP5502 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.