– Lat/Long: 46.20° N 122.18° W

Mount Saint Helens Weather Forecast

Cascade Range · United States

Issued: 10 pm Sat 19 Sep Local Time

Updates in:

hr min s

Update imminent

Issued: 10 pm Sat 19 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. Very mild (max 15°C on Sun afternoon, min 6°C on Tue morning). Wind will be generally light.										Days 5–7 Weather Summary Light rain (total 9mm) at first, then becoming colder with a dusting of snow on Thu night. Freeze-thaw conditions (max 8°C on Thu afternoon, min -1°C on Fri morning). Winds increasing (light winds from the WSW on Wed night, fresh winds from the WNW by Fri afternoon).
		Sunday 20			Monday 21			Tuesday 22			Wednesday 23			Thursday 24
	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	clear	clear	some clouds	some clouds	clear	some clouds	some clouds	cloudy	light snow
Cloud base (m)						8100	7200	7900		6900	8550	8650	6350	3550	3000	700
km/h	S	SSE	SW	SW	WSW	W	WNW	WNW	WNW	W	WSW	W	SW	SSW	SW	W
See all weather maps
cm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	2
mm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	9
max °C	13	13	15	14	11	11	9	6	7	4	5	7	7	7	8	3
min °C	13	13	14	12	11	10	7	6	6	4	5	7	6	7	6	0
chill °C	13	13	14	10	10	8	4	2	2	-1	2	4	4	5	3	-5

Freezing level m	4050	4250	4200	4050	3900	3900	3800	3400	3150	2800	3250	3250	3300	3250	3050	2200

	—	6:52	—	—	6:52	—	—	6:54	—	—	6:56	—	—	6:56	—	—
	—	—	7:09	—	—	7:07	—	—	7:06	—	—	7:04	—	—	7:02	—

Mount Saint Helens Weather (Days 0-3):

The weather forecast for Mount Saint Helens is: Mostly dry. Very mild (max 15°C on Sun afternoon, min 6°C on Tue morning). Wind will be generally light.

Mount Saint Helens Weather (Days 3-6):

Light rain (total 9mm) at first, then becoming colder with a dusting of snow on Thu night. Freeze-thaw conditions (max 8°C on Thu afternoon, min -1°C on Fri morning). Winds increasing (light winds from the WSW on Wed night, fresh winds from the WNW by Fri afternoon).

This table gives the weather forecast for Mount Saint Helens at the specific elevation of 2000 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	10°C	Clear	Light winds from the NW (7 kph at 320).	16 km
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	11°C	Clear	Calm (0 kph at 0).	16 km
Vancouver Airport 74 km S 218m alt. 2 hours ago	12°C	Clear	Calm (0 kph at 0).	16 km
Troutdale Airport 75 km S 218m alt. 2 hours ago	11°C	Clear	Wind obs. (6 kph from 90 degs) was rejected.	16 km
Portland Airport 76 km S 218m alt. 2 hours ago	15°C	Clear	Calm (0 kph at 0).	16 km
Ken Jernstedt Airfield - Hood River (Oregon) 78 km SE 195m alt. 1 hour ago	11°C	Clear	Light winds from the S (6 kph at 190).	16 km
Chehalis Central Airport 82 km WNW 54m alt. 1 hour ago	9°C	Fog -.	Calm (0 kph at 0).	0 km Low: overcast
Johnsons Corner wx 88 km N 215m alt. 1 hour ago	9°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.