Point Forecast: 16 Miles SW Union Center SD  44.39N 102.9W (Elev. 2707 ft)	Last Update: 12:32 am MDT Apr 17, 2026

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Weather Elements Fire Weather Aviation Weather 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) Dispersion Index Ceiling Height Visibility Thunder Potential

48-Hour Period Starting: 1am Fri, Apr 17 20262am Fri, Apr 17 20263am Fri, Apr 17 20264am Fri, Apr 17 20265am Fri, Apr 17 20266am Fri, Apr 17 20267am Fri, Apr 17 20268am Fri, Apr 17 20269am Fri, Apr 17 202610am Fri, Apr 17 202611am Fri, Apr 17 202612pm Fri, Apr 17 20261pm Fri, Apr 17 20262pm Fri, Apr 17 20263pm Fri, Apr 17 20264pm Fri, Apr 17 20265pm Fri, Apr 17 20266pm Fri, Apr 17 20267pm Fri, Apr 17 20268pm Fri, Apr 17 20269pm Fri, Apr 17 202610pm Fri, Apr 17 202611pm Fri, Apr 17 202612am Sat, Apr 18 20261am Sat, Apr 18 20262am Sat, Apr 18 20263am Sat, Apr 18 20264am Sat, Apr 18 20265am Sat, Apr 18 20266am Sat, Apr 18 20267am Sat, Apr 18 20268am Sat, Apr 18 20269am Sat, Apr 18 202610am Sat, Apr 18 202611am Sat, Apr 18 202612pm Sat, Apr 18 20261pm Sat, Apr 18 20262pm Sat, Apr 18 20263pm Sat, Apr 18 20264pm Sat, Apr 18 20265pm Sat, Apr 18 20266pm Sat, Apr 18 20267pm Sat, Apr 18 20268pm Sat, Apr 18 20269pm Sat, Apr 18 202610pm Sat, Apr 18 202611pm Sat, Apr 18 202612am Sun, Apr 19 20261am Sun, Apr 19 20262am Sun, Apr 19 20263am Sun, Apr 19 20264am Sun, Apr 19 20265am Sun, Apr 19 20266am Sun, Apr 19 20267am Sun, Apr 19 20268am Sun, Apr 19 20269am Sun, Apr 19 202610am Sun, Apr 19 202611am Sun, Apr 19 202612pm Sun, Apr 19 20261pm Sun, Apr 19 20262pm Sun, Apr 19 20263pm Sun, Apr 19 20264pm Sun, Apr 19 20265pm Sun, Apr 19 20266pm Sun, Apr 19 20267pm Sun, Apr 19 20268pm Sun, Apr 19 20269pm Sun, Apr 19 202610pm Sun, Apr 19 202611pm Sun, Apr 19 202612am Mon, Apr 20 20261am Mon, Apr 20 20262am Mon, Apr 20 20263am Mon, Apr 20 20264am Mon, Apr 20 20265am Mon, Apr 20 20266am Mon, Apr 20 20267am Mon, Apr 20 20268am Mon, Apr 20 20269am Mon, Apr 20 202610am Mon, Apr 20 202611am Mon, Apr 20 202612pm Mon, Apr 20 20261pm Mon, Apr 20 20262pm Mon, Apr 20 20263pm Mon, Apr 20 20264pm Mon, Apr 20 20265pm Mon, Apr 20 20266pm Mon, Apr 20 20267pm Mon, Apr 20 20268pm Mon, Apr 20 20269pm Mon, Apr 20 202610pm Mon, Apr 20 202611pm Mon, Apr 20 202612am Tue, Apr 21 20261am Tue, Apr 21 20262am Tue, Apr 21 20263am Tue, Apr 21 20264am Tue, Apr 21 20265am Tue, Apr 21 20266am Tue, Apr 21 20267am Tue, Apr 21 20268am Tue, Apr 21 20269am Tue, Apr 21 202610am Tue, Apr 21 202611am Tue, Apr 21 202612pm Tue, Apr 21 2026

Date	04/17																							04/18
Hour (MDT)	01	02	03	04	05	06	07	08	09	10	11	12	13	14	15	16	17	18	19	20	21	22	23	00
Temperature (°F)	32	32	32	32	32	32	32	34	36	37	38	39	42	44	45	44	43	42	39	36	33	31	30	29
Dewpoint (°F)	31	30	28	28	26	25	25	24	23	21	19	18	17	16	14	13	12	11	10	11	12	12	13	12
Wind Chill (°F)	18	17	18	18	19	19	18	20	22	23	25	26	30	33	34	33	32	31	27	24	21	20	19	19
Surface Wind (mph)	29	32	30	26	24	25	28	30	33	36	36	37	38	39	39	38	36	32	29	24	20	16	14	11
Wind Dir	NW	NW	NW	NW	NW	NW	NW	NW	NW	NW	NW	NW	NW	NW	NW	NW	NW	NW	NW	NW	NW	NW	NW	NW
Gust	44	46	45	37	34	34	38	41	46	49	49	51	53	54	54	53	49	45	40	33	26	22	20	17
Sky Cover (%)	100	94	93	91	91	89	92	89	86	84	81	71	68	64	64	52	36	30	25	14	15	14	18	20
Precipitation Potential (%)	91	38	38	22	22	7	7	7	9	9	9	4	4	4	1	1	1	0	0	0	0	0	0	4
Relative Humidity (%)	96	92	85	85	78	75	75	66	59	52	46	42	36	32	28	28	28	28	30	35	41	45	49	48
Rain	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Thunder	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Snow	Ocnl	Chc	Chc	SChc	SChc	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Freezing Rain	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Sleet	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Date																								04/19
Hour (MDT)	01	02	03	04	05	06	07	08	09	10	11	12	13	14	15	16	17	18	19	20	21	22	23	00
Temperature (°F)	27	26	25	24	24	26	29	33	37	40	43	46	50	52	53	53	52	51	47	44	40	38	36	35
Dewpoint (°F)	13	13	13	14	14	14	17	19	19	18	17	17	16	16	16	17	17	19	20	21	22	22	21	21
Wind Chill (°F)	17	16	15	14	14	15	18	22	26	30	33	37	42						40	38	35	34	32	31
Surface Wind (mph)	10	10	10	10	10	11	14	18	22	24	26	29	30	30	30	29	26	23	17	13	8	6	5	5
Wind Dir	NW	NW	NW	NW	NW	NW	NW	NW	NW	NW	NW	NW	NW	NW	NW	NW	NW	NW	NW	NW	NW	W	SW	SW
Gust	16	16	17	16	17	18	22	28	33	36	38	40	41	41	41	40	37	33	25	18
Sky Cover (%)	23	28	32	33	33	29	30	31	33	36	40	43	44	44	44	45	46	47	38	28	18	15	11	8
Precipitation Potential (%)	4	4	4	4	4	8	8	8	8	8	8	7	7	7	7	7	7	0	0	0	0	0	0	0
Relative Humidity (%)	55	57	60	65	65	60	60	56	48	41	35	31	25	24	23	24	25	28	34	40	48	52	54	56
Rain	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Thunder	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Snow	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Freezing Rain	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Sleet	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--

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