Point Forecast: Mount St Helens WA  46.18N 122.18W (Elev. 6204 ft)	Last Update: 6:41 am PDT Jun 2, 2024

[hide menu]

Weather Elements Weather/Precipitation Fire Weather Temperature (°F) Dewpoint (°F) Heat Index (°F) Surface Wind  ktmphkm/hm/s Sky Cover (%) Precipitation Potential (%) Relative Humidity (%) Rain Thunder Fog Mixing Height  x100ftx100m Haines Index Lightning Activity Level Trans. Wind  ktmphkm/hm/s

48-Hour Period Starting: 7am Sun, Jun 2 20248am Sun, Jun 2 20249am Sun, Jun 2 202410am Sun, Jun 2 202411am Sun, Jun 2 202412pm Sun, Jun 2 20241pm Sun, Jun 2 20242pm Sun, Jun 2 20243pm Sun, Jun 2 20244pm Sun, Jun 2 20245pm Sun, Jun 2 20246pm Sun, Jun 2 20247pm Sun, Jun 2 20248pm Sun, Jun 2 20249pm Sun, Jun 2 202410pm Sun, Jun 2 202411pm Sun, Jun 2 202412am Mon, Jun 3 20241am Mon, Jun 3 20242am Mon, Jun 3 20243am Mon, Jun 3 20244am Mon, Jun 3 20245am Mon, Jun 3 20246am Mon, Jun 3 20247am Mon, Jun 3 20248am Mon, Jun 3 20249am Mon, Jun 3 202410am Mon, Jun 3 202411am Mon, Jun 3 202412pm Mon, Jun 3 20241pm Mon, Jun 3 20242pm Mon, Jun 3 20243pm Mon, Jun 3 20244pm Mon, Jun 3 20245pm Mon, Jun 3 20246pm Mon, Jun 3 20247pm Mon, Jun 3 20248pm Mon, Jun 3 20249pm Mon, Jun 3 202410pm Mon, Jun 3 202411pm Mon, Jun 3 202412am Tue, Jun 4 20241am Tue, Jun 4 20242am Tue, Jun 4 20243am Tue, Jun 4 20244am Tue, Jun 4 20245am Tue, Jun 4 20246am Tue, Jun 4 20247am Tue, Jun 4 20248am Tue, Jun 4 20249am Tue, Jun 4 202410am Tue, Jun 4 202411am Tue, Jun 4 202412pm Tue, Jun 4 20241pm Tue, Jun 4 20242pm Tue, Jun 4 20243pm Tue, Jun 4 20244pm Tue, Jun 4 20245pm Tue, Jun 4 20246pm Tue, Jun 4 20247pm Tue, Jun 4 20248pm Tue, Jun 4 20249pm Tue, Jun 4 202410pm Tue, Jun 4 202411pm Tue, Jun 4 202412am Wed, Jun 5 20241am Wed, Jun 5 20242am Wed, Jun 5 20243am Wed, Jun 5 20244am Wed, Jun 5 20245am Wed, Jun 5 20246am Wed, Jun 5 20247am Wed, Jun 5 20248am Wed, Jun 5 20249am Wed, Jun 5 202410am Wed, Jun 5 202411am Wed, Jun 5 202412pm Wed, Jun 5 20241pm Wed, Jun 5 20242pm Wed, Jun 5 20243pm Wed, Jun 5 20244pm Wed, Jun 5 20245pm Wed, Jun 5 20246pm Wed, Jun 5 20247pm Wed, Jun 5 20248pm Wed, Jun 5 20249pm Wed, Jun 5 202410pm Wed, Jun 5 202411pm Wed, Jun 5 202412am Thu, Jun 6 20241am Thu, Jun 6 20242am Thu, Jun 6 20243am Thu, Jun 6 20244am Thu, Jun 6 20245am Thu, Jun 6 20246am Thu, Jun 6 20247am Thu, Jun 6 20248am Thu, Jun 6 20249am Thu, Jun 6 202410am Thu, Jun 6 202411am Thu, Jun 6 202412pm Thu, Jun 6 20241pm Thu, Jun 6 20242pm Thu, Jun 6 20243pm Thu, Jun 6 20244pm Thu, Jun 6 20245pm Thu, Jun 6 20246pm Thu, Jun 6 2024

Date	06/02																	06/03
Hour (PDT)	07	08	09	10	11	12	13	14	15	16	17	18	19	20	21	22	23	00	01	02	03	04	05	06
Temperature (°F)	37	37	36	36	35	35	35	36	36	37	37	37	37	37	37	37	39	40	41	40	41	41	43	40
Dewpoint (°F)	36	36	35	36	35	35	35	36	36	37	37	37	37	37	37	35	35	36	37	35	36	39	41	38
Heat Index (°F)
Surface Wind (mph)	13	15	15	16	24	25	26	28	28	23	23	23	22	22	22	22	18	16	17	20	18	22	25	25
Wind Dir	SSW	SSW	SSW	S	SSW	SSW	SSW	SSW	SW	SW	SW	SW	SW	WSW	SW	WSW	SW	SW	SSW	SSW	SSW	SW	WSW	WSW
Gust		21	21	23	33	36	37	39	39	32	32	32	31	31	31	31	25	23	24	28	25	31	36	36
Sky Cover (%)	85	96	98	98	100	100	100	100	100	100	100	100	100	100	100	99	98	100	100	99	100	97	100	100
Precipitation Potential (%)	77	93	96	97	99	100	100	100	100	100	100	100	99	99	99	98	97	100	100	98	99	95	99	99
Relative Humidity (%)	95	95	95	100	100	100	100	100	100	100	100	100	100	100	100	91	87	86	84	83	83	94	93	93
Rain	Ocnl	Ocnl	Ocnl	Ocnl	Ocnl	Ocnl	Ocnl	Ocnl	Ocnl	Ocnl	Ocnl	Ocnl	Ocnl	Ocnl	Ocnl	Ocnl	Ocnl	Ocnl	Ocnl	Ocnl	Ocnl	Ocnl	Ocnl	Ocnl
Thunder	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Date																		06/04
Hour (PDT)	07	08	09	10	11	12	13	14	15	16	17	18	19	20	21	22	23	00	01	02	03	04	05	06
Temperature (°F)	38	36	36	35	34	34	34	34	33	33	32	32	32	32	32	32	32	32	32	32	32	33	33	34
Dewpoint (°F)	36	34	34	34	33	33	33	33	33	32	31	31	31	30	29	28	27	27	27	27	27	27	28	28
Heat Index (°F)
Surface Wind (mph)	25	26	26	26	21	21	21	21	21	21	20	20	20	17	17	17	14	14	14	17	17	17	18	18
Wind Dir	WSW	WSW	WSW	WSW	WSW	WSW	WSW	WSW	WSW	WSW	WSW	WSW	WSW	WSW	WSW	WSW	SSW	SSW	SSW	SSW	SSW	SSW	S	S
Gust	36	37	37	37	29	29	29	29	29	29	28	28	28	25	25	25	21	21	21	24	24	24	26	26
Sky Cover (%)	100	100	100	100	92	92	92	92	92	92	92	92	92	92	92	92	98	98	98	98	98	98	95	95
Precipitation Potential (%)	99	99	99	99	88	88	88	88	88	88	88	88	88	88	88	88	97	97	97	97	97	97	92	92
Relative Humidity (%)	93	93	93	96	97	97	98	98	98	97	97	96	95	94	90	86	82	82	81	81	81	80	80	80
Rain	Ocnl	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	Ocnl	Ocnl	Ocnl	Ocnl	Ocnl	Ocnl	Ocnl	Ocnl
Thunder	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--

International System of Units Forecast Discussion 7-Day Forecast Hourly Weather Graph PFM (Forecast Matrix) PFM Decoding Guide Current River Levels Weather Planner Mapped Observations Road Conditions Marine Weather Fire Weather User Defined Area Forecast