– Lat/Long: 46.20° N 122.18° W

Mount Saint Helens Weather Forecast

Cascade Range · United States

Issued: 4 pm Mon 21 Sep Local Time

Updates in:

hr min s

Update imminent

Issued: 4 pm Mon 21 Sep Local Time

Updates in:

hr min s

Update imminent

3 Mount Saint Helens Elevations: 3 Forecast Elevations:

	Days 1–4 Weather Summary Mostly dry. Mild temperatures (max 9°C on Mon afternoon, min 3°C on Tue night). Winds increasing (light winds from the W on Mon night, strong winds from the SSW by Thu morning).											Days 5–7 Weather Summary A moderate fall of snow, heaviest on Thu night. Freeze-thaw conditions (max 4°C on Thu afternoon, min -5°C on Thu night). Winds decreasing (near gales from the SSW on Thu afternoon, calm by Sat morning).
	Mon 21		Tuesday 22			Wednesday 23			Thursday 24			Friday 25			Saturday 26
	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	some clouds	some clouds	clear	clear	some clouds	cloudy	clear	some clouds	light rain	light rain	snow shwrs	snow shwrs	snow shwrs	some clouds	clear	some clouds	cloudy
Cloud base (m)	5950	700		9450	7100	5650	8600	6150	2600	2600	700	750	950	6650	8950		2600
km/h	WSW	W	W	W	W	WSW	WSW	SW	SSW	SSW	WSW	WNW	NW	NW	SSW	SSW	SW
See all weather maps
cm	—	—	—	—	—	—	—	—	—	—	10	2	2	—	—	—	—
mm	—	—	—	—	—	—	—	—	0.1	0.2	—	—	—	—	—	—	—
max °C	9	8	5	5	3	3	4	5	3	4	1	-5	-3	2	3	4	3
min °C	8	5	4	4	3	3	4	4	3	3	-5	-5	-4	-2	2	4	-1
chill °C	5	0	-1	-1	-3	-3	-1	-1	-3	-4	-15	-14	-13	-10	2	0	-7

Freezing level m	3900	3800	3550	3300	3150	3250	3350	3400	3000	3150	2000	1750	2100	2750	3200	3200	2650

	—	—	6:54	—	—	6:56	—	—	6:56	—	—	6:58	—	—	7:00	—	—
	7:07	—	—	7:06	—	—	7:04	—	—	7:02	—	—	7:00	—	—	6:59	—

Mount Saint Helens Weather (Days 0-3):

The weather forecast for Mount Saint Helens is: Mostly dry. Mild temperatures (max 9°C on Mon afternoon, min 3°C on Tue night). Winds increasing (light winds from the W on Mon night, strong winds from the SSW by Thu morning).

Mount Saint Helens Weather (Days 3-6):

A moderate fall of snow, heaviest on Thu night. Freeze-thaw conditions (max 4°C on Thu afternoon, min -5°C on Thu night). Winds decreasing (near gales from the SSW on Thu afternoon, calm by Sat morning).

This table gives the weather forecast for Mount Saint Helens at the specific elevation of 2549 m. Our advanced weather models allow us to provide distinct weather forecasts for several elevations of Mount Saint Helens. 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
Kelso Longveiw Airport 56 km WSW 220m alt. 2 hours ago	19°C	Dry and partly cloudy.	Light winds from the WNW (13 kph at 300).	16 km Low: broken Mid: broken
BUOY-KLMW1 57 km SW 3m alt. 1 hour ago
BUOY-LOPW1 60 km WSW 3m alt. 1 hour ago
Scappoose Airport 72 km SSW 219m alt. 2 hours ago	21°C	Clear	Light winds from the NNW (15 kph at 340).	16 km
Vancouver Airport 74 km S 218m alt. 2 hours ago	21°C	Clear	Light winds from the NNW (6 kph at 330).	16 km
Troutdale Airport 75 km S 218m alt. 2 hours ago	20°C	Clear	Wind obs. (6 kph from 120 degs) was rejected.	16 km
Portland Airport 76 km S 218m alt. 2 hours ago	21°C	Dry and partly cloudy.	Light winds from the NNW (9 kph at 330).	16 km Low: broken
Ken Jernstedt Airfield - Hood River (Oregon) 78 km SE 195m alt. 2 hours ago	17°C	Clear	Wind obs. (7 kph from 330 degs) was rejected.	16 km
Chehalis Central Airport 82 km WNW 54m alt. 2 hours ago	17°C	Clear	Wind obs. (9 kph from 1 degs) was rejected.	16 km
Johnsons Corner wx 88 km N 215m alt. 2 hours ago	13°C	Dry	Calm (0 kph at —).

* 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.