– Lat/Long: 47.51° N 121.74° W

Mount Si
Weather Forecast, United States
Issued: 9 am Tue 27 Jan Local Time
Updates in:
hr min s
Update imminent

Issued: 9 am Tue 27 Jan Local Time

Updates in:

hr min s

Update imminent

2 Mount Si Elevations: 2 Forecast Elevations:

	Days 1–3 Weather Summary Heavy rain (total 29mm), heaviest during Tue night. Very mild (max 10°C on Tue morning, min 3°C on Tue night). Wind will be generally light.									Days 4–6 Weather Summary Moderate rain (total 16mm), heaviest on Fri afternoon. Very mild (max 11°C on Sat morning, min 5°C on Sun night). Wind will be generally light.
	Tuesday 27			Wednesday 28			Thursday 29			Friday 30			Saturday 31			Sunday 1
	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	cloudy	cloudy	mod. rain	rain shwrs	light rain	mod. rain	mod. rain	light rain	light rain	light rain	mod. rain	rain shwrs	cloudy	cloudy	some clouds	cloudy	light rain	light rain
km/h	ESE	SE	SSE	SSW	S	SSE	SE	S	SE	SSE	S	SE	SE	SE	ESE	SSE	WSW	SW
See all weather maps
cm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
mm	—	—	7	0.4	4	9	7	1	2	3	6	0.7	—	—	—	—	1.3	4
max °C	10	7	5	6	5	6	6	7	7	8	7	8	11	10	8	10	8	6
min °C	8	5	3	6	5	5	5	6	7	7	6	7	9	9	7	9	7	5
chill °C	6	3	0	4	3	3	2	4	6	5	4	6	8	7	5	8	6	3

Freezing level m	2350	2200	1350	1350	1350	1750	1700	1900	2250	2050	1900	2150	2750	2600	2600	2350	1600	1400
Cloud base (m)	4650	5500	2250	550	650	450	450	450	950	1650	700	550	6700	2700	4950		2050	450

	7:39	—	—	7:37	—	—	7:35	—	—	7:35	—	—	7:33	—	—	7:31	—	—
	—	5:00	—	—	5:01	—	—	5:04	—	—	5:05	—	—	5:07	—	—	5:07	—

Mount Si Weather (Days 0-3):

The weather forecast for Mount Si is: Heavy rain (total 29mm), heaviest during Tue night. Very mild (max 10°C on Tue morning, min 3°C on Tue night). Wind will be generally light.

Mount Si Weather (Days 3-6):

Moderate rain (total 16mm), heaviest on Fri afternoon. Very mild (max 11°C on Sat morning, min 5°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
Harman Heights wx 6 km SSW 251m alt. 3 hours ago	6° C	Dry	Calm (0 kph at 102).
Renton Airport 36 km WSW 218m alt. 3 hours ago	7° C	Clear	Wind obs. (6 kph from 170 degs) was rejected.	16 km
Auburn 39 km SW 119m alt. 1 hour ago	7° C	Dry	Calm (0 kph at 216).
Stampede Pass Airport 40 km SE 628m alt. 3 hours ago	-5° C	Clear	Wind obs. (6 kph from 1 degs) was rejected.	11 km
Seattl / oeing Airport 44 km WSW 218m alt. 3 hours ago	8° C	Dry and partly cloudy.	Wind obs. (6 kph from 320 degs) was rejected.	16 km Low: broken
Seattle Tacoma International Airport 44 km WSW 218m alt. 3 hours ago	8° C	Dry and cloudy.	Calm (0 kph at 0).	16 km Low: few Mid: broken High: overcast
Snohomish 49 km NW 196m alt. 48 minutes ago	9° C	Dry	Wind obs. (10 kph from 11 degs) was rejected.
Seattle 49 km WSW 100m alt. 2 hours ago	8° C	-	Wind obs. (14 kph from 311 degs) was rejected.
SHIP3667 51 km W 15m alt. 1 hour ago				- km
SHIP4228 54 km W 15m alt. 3 hours ago			Light winds from the W (8 kph at 270).	- 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.