Point Forecast: Mount St Helens WA  46.2N 122.18W (Elev. 1828 m)	Last Update: 2:41 pm PDT May 24, 2024

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Weather Elements Weather/Precipitation Fire Weather Temperature (°C) Dewpoint (°C) Heat Index (°C) 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: 3pm Fri, May 24 20244pm Fri, May 24 20245pm Fri, May 24 20246pm Fri, May 24 20247pm Fri, May 24 20248pm Fri, May 24 20249pm Fri, May 24 202410pm Fri, May 24 202411pm Fri, May 24 202412am Sat, May 25 20241am Sat, May 25 20242am Sat, May 25 20243am Sat, May 25 20244am Sat, May 25 20245am Sat, May 25 20246am Sat, May 25 20247am Sat, May 25 20248am Sat, May 25 20249am Sat, May 25 202410am Sat, May 25 202411am Sat, May 25 202412pm Sat, May 25 20241pm Sat, May 25 20242pm Sat, May 25 20243pm Sat, May 25 20244pm Sat, May 25 20245pm Sat, May 25 20246pm Sat, May 25 20247pm Sat, May 25 20248pm Sat, May 25 20249pm Sat, May 25 202410pm Sat, May 25 202411pm Sat, May 25 202412am Sun, May 26 20241am Sun, May 26 20242am Sun, May 26 20243am Sun, May 26 20244am Sun, May 26 20245am Sun, May 26 20246am Sun, May 26 20247am Sun, May 26 20248am Sun, May 26 20249am Sun, May 26 202410am Sun, May 26 202411am Sun, May 26 202412pm Sun, May 26 20241pm Sun, May 26 20242pm Sun, May 26 20243pm Sun, May 26 20244pm Sun, May 26 20245pm Sun, May 26 20246pm Sun, May 26 20247pm Sun, May 26 20248pm Sun, May 26 20249pm Sun, May 26 202410pm Sun, May 26 202411pm Sun, May 26 202412am Mon, May 27 20241am Mon, May 27 20242am Mon, May 27 20243am Mon, May 27 20244am Mon, May 27 20245am Mon, May 27 20246am Mon, May 27 20247am Mon, May 27 20248am Mon, May 27 20249am Mon, May 27 202410am Mon, May 27 202411am Mon, May 27 202412pm Mon, May 27 20241pm Mon, May 27 20242pm Mon, May 27 20243pm Mon, May 27 20244pm Mon, May 27 20245pm Mon, May 27 20246pm Mon, May 27 20247pm Mon, May 27 20248pm Mon, May 27 20249pm Mon, May 27 202410pm Mon, May 27 202411pm Mon, May 27 202412am Tue, May 28 20241am Tue, May 28 20242am Tue, May 28 20243am Tue, May 28 20244am Tue, May 28 20245am Tue, May 28 20246am Tue, May 28 20247am Tue, May 28 20248am Tue, May 28 20249am Tue, May 28 202410am Tue, May 28 202411am Tue, May 28 202412pm Tue, May 28 20241pm Tue, May 28 20242pm Tue, May 28 20243pm Tue, May 28 20244pm Tue, May 28 20245pm Tue, May 28 20246pm Tue, May 28 20247pm Tue, May 28 20248pm Tue, May 28 20249pm Tue, May 28 202410pm Tue, May 28 202411pm Tue, May 28 202412am Wed, May 29 20241am Wed, May 29 20242am Wed, May 29 2024

Date	05/24									05/25
Hour (PDT)	15	16	17	18	19	20	21	22	23	00	01	02	03	04	05	06	07	08	09	10	11	12	13	14
Temperature (°C)	2	2	1	1	1	1	0	-1	-1	-1	-1	-1	-2	-2	-2	-2	-2	-2	-2	-2	-2	-2	-2	-2
Dewpoint (°C)	1	0	0	0	0	0	-1	-2	-2	-2	-2	-1	-2	-3	-3	-3	-3	-2	-2	-3	-3	-3	-3	-3
Heat Index (°C)
Surface Wind (mph)	13	14	14	14	14	14	15	15	15	15	15	15	16	16	16	17	18	18	20	20	20	20	20	20
Wind Dir	W	W	W	W	W	W	W	W	W	W	W	W	W	W	W	W	W	W	W	W	W	W	W	W
Gust																30	31	31	31	31	31	31	31	31
Sky Cover (%)	86	89	98	99	100	95	79	71	71	73	79	90	99	93	99	99	99	99	99	99	82	82	82	82
Precipitation Potential (%)	64	56	72	74	69	59	49	40	41	49	63	76	79	87	86	83	78	73	64	54	42	40	37	31
Relative Humidity (%)	89	90	91	94	97	98	96	93	91	93	96	99	99	94	92	94	97	100	99	96	94	94	94	94
Rain	Lkly	Lkly	Lkly	Lkly	SChc	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Thunder	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Date										05/26
Hour (PDT)	15	16	17	18	19	20	21	22	23	00	01	02	03	04	05	06	07	08	09	10	11	12	13	14
Temperature (°C)	-1	-1	-1	-1	-2	-2	-2	-2	-2	-2	-2	-2	-2	-2	-2	-1	-1	0	1	1	1	2	3	4
Dewpoint (°C)	-2	-3	-3	-3	-3	-3	-3	-3	-3	-2	-2	-2	-2	-2	-2	-2	-2	-1	-1	-1	-1	0	0	0
Heat Index (°C)
Surface Wind (mph)	18	18	18	18	18	15	15	15	9	9	9	7	7	7	6	6	6	7	7	7	8	8	8	7
Wind Dir	W	W	W	W	W	W	W	W	W	W	W	W	W	W	W	W	W	SSW	SSW	SSW	SSW	SSW	SSW	SW
Gust	31	31
Sky Cover (%)	82	82	81	81	81	81	81	81	68	68	68	69	69	69	65	65	65	59	59	59	67	67	67	70
Precipitation Potential (%)	27	25	40	40	40	40	40	40	12	12	12	12	12	12	22	22	22	22	22	22	25	25	25	25
Relative Humidity (%)	91	88	86	86	87	89	91	93	94	96	97	98	98	98	97	95	94	93	92	92	89	86	81	77
Rain	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	Chc
Thunder	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--

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