– Lat/Long: 46.20° N 122.18° W

Mount Saint Helens
Weather Forecast, United States
Issued: 10 am Mon 20 May Local Time
Updates in:
hr min s
Update imminent

Issued: 10 am Mon 20 May Local Time

Updates in:

hr min s

Update imminent

3 Mount Saint Helens Elevations: 3 Forecast Elevations:

	Days 1–3 Weather Summary A heavy fall of snow, heaviest during Tue afternoon. Temperatures will be below freezing (max -1°C on Mon night, min -10°C on Wed morning). Winds increasing (moderate winds from the N on Mon morning, strong winds from the WNW by Wed morning).									Days 4–6 Weather Summary A moderate fall of snow, heaviest on Sat morning. Temperatures will be below freezing (max 0°C on Thu night, min -10°C on Sat morning). Winds increasing (light winds from the NNW on Thu afternoon, strong winds from the W by Fri night).									Days 7–9 Weather Summary Mostly dry. Freeze-thaw conditions (max 9°C on Tue afternoon, min -1°C on Sun morning). Winds increasing (light winds from the W on Sun night, fresh winds from the SSW by Mon night).									Days 10–12 Weather Summary A light covering of new snow mostly falling on Wed night. Freeze-thaw conditions (max 5°C on Wed morning, min -6°C on Wed night). Winds decreasing (gales from the SW on Wed night, light winds from the W by Fri morning).
	Monday 20			Tuesday 21			Wednesday 22			Thursday 23			Friday 24			Saturday 25			Sunday 26			Monday 27			Tuesday 28			Wednesday 29			Thursday 30			Friday 31
	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	some clouds	clear	some clouds	light snow	heavy snow	mod. snow	light snow	light snow	some clouds	cloudy	clear	some clouds	light snow	light snow	snow shwrs	snow shwrs	snow shwrs	some clouds	clear	clear	some clouds	some clouds	clear	some clouds	clear	clear	rain shwrs	rain shwrs	rain shwrs	light snow	some clouds	snow shwrs	clear	clear	clear	some clouds
km/h	NNW	NNW	NW	WNW	W	W	NW	NNW	NNW	NNW	NW	WNW	W	WSW	W	NW	NNW	NW	NW	NW	WSW	SSW	SSW	SSW	S	SSW	S	SSW	SW	WSW	WNW	WNW	NW	W	WSW	WSW
Wave Height Map See all maps
cm	—	—	—	2.0	12	9	4	2.0	—	—	—	—	1.0	2.0	3	6	2.0	—	—	—	—	—	—	—	—	—	—	—	—	3	—	2.0	—	—	—	—
mm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	0.1	0.8	0.1	—	—	—	—	—	—	—
max°C	-4	-2	-1	-2	-2	-2	-8	-4	-3	-3	-1	0	-2	-3	-4	-8	-6	-2	0	3	5	5	7	8	8	9	9	5	4	0	-6	-5	-2	-1	0	1
min°C	-4	-3	-2	-2	-2	-9	-10	-5	-3	-3	-2	-2	-2	-3	-9	-10	-8	-3	-1	2	3	5	7	8	8	9	7	4	2	-6	-6	-5	-4	-2	0	-1
chill°C	-11	-10	-9	-10	-10	-20	-22	-14	-11	-9	-7	-9	-9	-12	-19	-20	-17	-12	-7	-2	1	2	4	5	5	6	4	-1	-5	-15	-15	-12	-11	-7	-4	-7

Freezing level (m)	1700	2250	1850	2100	2150	1550	1250	1750	1600	1600	2400	2450	2000	1850	1100	1150	1550	1450	2500	3100	3350	3450	3500	3750	3800	3700	3800	3450	2800	1600	1700	1850	1650	2250	2550	2550
Cloud base (m)	800	1550	800	700	700	700	700	750	750	750	850	6150	1500	650	700	700	700	750	850	1750	6450	6750	6350			9550	4350	850	1600	750	850	1600	750	900	2300	2050

	5:28	—	—	5:28	—	—	5:26	—	—	5:26	—	—	5:26	—	—	5:24	—	—	5:24	—	—	5:22	—	—	5:22	—	—	5:22	—	—	5:20	—	—	5:20	—	—
	—	—	8:40	—	—	8:42	—	—	8:43	—	—	8:44	—	—	8:45	—	—	8:45	—	—	8:46	—	—	8:47	—	—	8:49	—	—	8:50	—	—	8:51	—	—	8:52

Mount Saint Helens Weather (Days 0-3):

The weather forecast for Mount Saint Helens is: A heavy fall of snow, heaviest during Tue afternoon. Temperatures will be below freezing (max -1°C on Mon night, min -10°C on Wed morning). Winds increasing (moderate winds from the N on Mon morning, strong winds from the WNW by Wed morning).

Mount Saint Helens Weather (Days 3-6):

A moderate fall of snow, heaviest on Sat morning. Temperatures will be below freezing (max 0°C on Thu night, min -10°C on Sat morning). Winds increasing (light winds from the NNW on Thu afternoon, strong winds from the W by Fri night).

Mount Saint Helens Weather (Days 6-9):

Mostly dry. Freeze-thaw conditions (max 9°C on Tue afternoon, min -1°C on Sun morning). Winds increasing (light winds from the W on Sun night, fresh winds from the SSW by Mon night).

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 5 closest weather stations

Weather Station	Temp.	Weather	Wind
Yacolt 41 km S 213m alt. 22 minutes ago	17° C	Dry	Wind obs. (16 kph from 277 degs) was rejected.
View wx 47 km SSW 248m alt. 39 minutes ago	17° C	Dry	Light winds from the NW (8 kph at 317).
Heisson 48 km S 229m alt. 1 hour ago	16° C	Dry	Wind obs. (8 kph from 255 degs) was rejected.
Lewisville wx 51 km S 127m alt. 1 hour ago	17° C	Dry	Calm (3 kph at 5).
Kalama 53 km SW 270m alt. 35 minutes ago	18° C	Dry	Calm (3 kph at 333).

* 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.