Point Forecast: Iona SD  43.54N 99.44W (Elev. 1923 ft)	Last Update: 4:14 am CDT May 15, 2025

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Weather Elements Fire Weather Probabilistic Forecasts (Experimental) Description | Survey Temperature (°F) Dewpoint (°F) Wind Chill (°F) Surface Wind  ktmphkm/hm/s Sky Cover (%) Precipitation Potential (%) Relative Humidity (%) Rain Thunder Snow Freezing Rain Sleet Fog Mixing Height  x100ftx100m Trans. Wind  ktmphkm/hm/s 20ft Wind  ktmphkm/hm/s Vent Rate (x1000 mph-ft) Grassland Fire Danger Index Quantitative Precipitation  3-hr6-hr12-hr24-hr   info     0.100.250.501.00 Snowfall  3-hr6-hr12-hr24-hr   info     0.1in1in3in6in12in

48-Hour Period Starting: 4am Thu, May 15 20255am Thu, May 15 20256am Thu, May 15 20257am Thu, May 15 20258am Thu, May 15 20259am Thu, May 15 202510am Thu, May 15 202511am Thu, May 15 202512pm Thu, May 15 20251pm Thu, May 15 20252pm Thu, May 15 20253pm Thu, May 15 20254pm Thu, May 15 20255pm Thu, May 15 20256pm Thu, May 15 20257pm Thu, May 15 20258pm Thu, May 15 20259pm Thu, May 15 202510pm Thu, May 15 202511pm Thu, May 15 202512am Fri, May 16 20251am Fri, May 16 20252am Fri, May 16 20253am Fri, May 16 20254am Fri, May 16 20255am Fri, May 16 20256am Fri, May 16 20257am Fri, May 16 20258am Fri, May 16 20259am Fri, May 16 202510am Fri, May 16 202511am Fri, May 16 202512pm Fri, May 16 20251pm Fri, May 16 20252pm Fri, May 16 20253pm Fri, May 16 20254pm Fri, May 16 20255pm Fri, May 16 20256pm Fri, May 16 20257pm Fri, May 16 20258pm Fri, May 16 20259pm Fri, May 16 202510pm Fri, May 16 202511pm Fri, May 16 202512am Sat, May 17 20251am Sat, May 17 20252am Sat, May 17 20253am Sat, May 17 20254am Sat, May 17 20255am Sat, May 17 20256am Sat, May 17 20257am Sat, May 17 20258am Sat, May 17 20259am Sat, May 17 202510am Sat, May 17 202511am Sat, May 17 202512pm Sat, May 17 20251pm Sat, May 17 20252pm Sat, May 17 20253pm Sat, May 17 20254pm Sat, May 17 20255pm Sat, May 17 20256pm Sat, May 17 20257pm Sat, May 17 20258pm Sat, May 17 20259pm Sat, May 17 202510pm Sat, May 17 202511pm Sat, May 17 202512am Sun, May 18 20251am Sun, May 18 20252am Sun, May 18 20253am Sun, May 18 20254am Sun, May 18 20255am Sun, May 18 20256am Sun, May 18 20257am Sun, May 18 20258am Sun, May 18 20259am Sun, May 18 202510am Sun, May 18 202511am Sun, May 18 202512pm Sun, May 18 20251pm Sun, May 18 20252pm Sun, May 18 20253pm Sun, May 18 20254pm Sun, May 18 20255pm Sun, May 18 20256pm Sun, May 18 20257pm Sun, May 18 20258pm Sun, May 18 20259pm Sun, May 18 202510pm Sun, May 18 202511pm Sun, May 18 202512am Mon, May 19 20251am Mon, May 19 20252am Mon, May 19 20253am Mon, May 19 20254am Mon, May 19 20255am Mon, May 19 20256am Mon, May 19 20257am Mon, May 19 20258am Mon, May 19 20259am Mon, May 19 202510am Mon, May 19 202511am Mon, May 19 202512pm Mon, May 19 20251pm Mon, May 19 20252pm Mon, May 19 20253pm Mon, May 19 2025

Date	05/15																				05/16
Hour (CDT)	04	05	06	07	08	09	10	11	12	13	14	15	16	17	18	19	20	21	22	23	00	01	02	03
Temperature (°F)	56	56	55	54	54	52	52	53	54	55	59	58	59	60	59	58	57	55	54	53	53	53	52	52
Dewpoint (°F)	55	54	54	54	54	52	51	50	48	48	47	46	45	44	43	44	43	42	42	41	41	41	41	41
Wind Chill (°F)
Surface Wind (mph)	18	21	23	25	29	32	34	38	38	38	39	40	38	38	34	31	34	34	32	33	32	32	31	32
Wind Dir	NNW	NW	WNW	W	W	W	W	WNW	W	W	W	W	W	W	W	W	W	W	W	W	W	W	W	W
Gust	28	29	33	37	41	46	49	53	54	54	55	56	55	54	49	46	45	45	43	43	40	44	46	45
Sky Cover (%)	87	87	90	98	98	88	85	88	87	82	73	77	51	45	52	63	74	81	81	76	57	69	79	79
Precipitation Potential (%)	19	16	25	63	90	76	41	20	27	63	44	18	17	14	12	28	29	28	24	23	29	14	15	21
Relative Humidity (%)	96	93	96	99	100	100	96	89	80	77	64	64	60	55	55	60	59	61	64	64	64	64	66	66
Rain	SChc	SChc	Chc	Lkly	Ocnl	Ocnl	Chc	SChc	Chc	Lkly	Chc	SChc	SChc	--	--	Chc	Chc	Chc	SChc	SChc	Chc	--	SChc	SChc
Thunder	SChc	SChc	Chc	Chc	Chc	Chc	--	--	--	SChc	SChc	SChc	--	--	--	--	--	--	--	--	--	--	--	--
Snow	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Freezing Rain	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Sleet	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Date																					05/17
Hour (CDT)	04	05	06	07	08	09	10	11	12	13	14	15	16	17	18	19	20	21	22	23	00	01	02	03
Temperature (°F)	51	50	49	49	48	47	48	48	49	50	50	51	51	51	50	50	49	48	47	47	46	46	45	45
Dewpoint (°F)	41	41	41	41	41	42	42	43	43	43	43	42	42	42	42	42	42	41	41	40	40	39	39	39
Wind Chill (°F)		42	40	40	39	37	39	39	40	41	42				42	42	41	40	39	39	38	38	37	37
Surface Wind (mph)	32	33	33	33	36	37	37	37	38	38	37	38	37	36	32	30	29	26	25	24	22	21	20	18
Wind Dir	W	W	W	W	WNW	WNW	WNW	WNW	WNW	WNW	WNW	WNW	WNW	WNW	NW	NW	NW	NW	NW	NW	NW	NW	NW	NW
Gust	41	41	41	43	45	47	48	48	48	48	49	51	49	48	45	41	39	38	36	33	31	29	28	26
Sky Cover (%)	81	88	84	94	92	89	90	93	92	90	89	89	88	88	88	88	85	83	80	75	71	66	66	66
Precipitation Potential (%)	33	40	41	66	66	66	66	66	66	63	63	63	63	63	63	21	21	21	21	21	21	7	7	7
Relative Humidity (%)	68	71	74	74	77	83	80	83	80	77	76	72	71	72	73	74	77	77	79	76	79	76	79	79
Rain	Chc	Chc	Chc	Lkly	Lkly	Lkly	Lkly	Lkly	Lkly	Lkly	Lkly	Lkly	Lkly	Lkly	Lkly	SChc	SChc	SChc	SChc	SChc	SChc	--	--	--
Thunder	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Snow	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Freezing Rain	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Sleet	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--

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