Point Forecast: Grand Blanc MI  42.91N 83.62W (Elev. 846 ft)	Last Update: 4:24 pm EDT Jun 18, 2025

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Weather Elements Fire Weather Probabilistic Forecasts (Experimental) Description | Survey Temperature (°F) Dewpoint (°F) Heat Index (°F) Surface Wind  ktmphkm/hm/s Sky Cover (%) Precipitation Potential (%) Relative Humidity (%) Rain Thunder Fog Mixing Height  x100ftx100m Trans. Wind  ktmphkm/hm/s 20ft Wind  ktmphkm/hm/s Vent Rate (x1000 mph-ft) Red Flag Threat 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: 6pm Wed, Jun 18 20257pm Wed, Jun 18 20258pm Wed, Jun 18 20259pm Wed, Jun 18 202510pm Wed, Jun 18 202511pm Wed, Jun 18 202512am Thu, Jun 19 20251am Thu, Jun 19 20252am Thu, Jun 19 20253am Thu, Jun 19 20254am Thu, Jun 19 20255am Thu, Jun 19 20256am Thu, Jun 19 20257am Thu, Jun 19 20258am Thu, Jun 19 20259am Thu, Jun 19 202510am Thu, Jun 19 202511am Thu, Jun 19 202512pm Thu, Jun 19 20251pm Thu, Jun 19 20252pm Thu, Jun 19 20253pm Thu, Jun 19 20254pm Thu, Jun 19 20255pm Thu, Jun 19 20256pm Thu, Jun 19 20257pm Thu, Jun 19 20258pm Thu, Jun 19 20259pm Thu, Jun 19 202510pm Thu, Jun 19 202511pm Thu, Jun 19 202512am Fri, Jun 20 20251am Fri, Jun 20 20252am Fri, Jun 20 20253am Fri, Jun 20 20254am Fri, Jun 20 20255am Fri, Jun 20 20256am Fri, Jun 20 20257am Fri, Jun 20 20258am Fri, Jun 20 20259am Fri, Jun 20 202510am Fri, Jun 20 202511am Fri, Jun 20 202512pm Fri, Jun 20 20251pm Fri, Jun 20 20252pm Fri, Jun 20 20253pm Fri, Jun 20 20254pm Fri, Jun 20 20255pm Fri, Jun 20 20256pm Fri, Jun 20 20257pm Fri, Jun 20 20258pm Fri, Jun 20 20259pm Fri, Jun 20 202510pm Fri, Jun 20 202511pm Fri, Jun 20 202512am Sat, Jun 21 20251am Sat, Jun 21 20252am Sat, Jun 21 20253am Sat, Jun 21 20254am Sat, Jun 21 20255am Sat, Jun 21 20256am Sat, Jun 21 20257am Sat, Jun 21 20258am Sat, Jun 21 20259am Sat, Jun 21 202510am Sat, Jun 21 202511am Sat, Jun 21 202512pm Sat, Jun 21 20251pm Sat, Jun 21 20252pm Sat, Jun 21 20253pm Sat, Jun 21 20254pm Sat, Jun 21 20255pm Sat, Jun 21 20256pm Sat, Jun 21 20257pm Sat, Jun 21 20258pm Sat, Jun 21 20259pm Sat, Jun 21 202510pm Sat, Jun 21 202511pm Sat, Jun 21 202512am Sun, Jun 22 20251am Sun, Jun 22 20252am Sun, Jun 22 20253am Sun, Jun 22 20254am Sun, Jun 22 20255am Sun, Jun 22 20256am Sun, Jun 22 20257am Sun, Jun 22 20258am Sun, Jun 22 20259am Sun, Jun 22 202510am Sun, Jun 22 202511am Sun, Jun 22 202512pm Sun, Jun 22 20251pm Sun, Jun 22 20252pm Sun, Jun 22 20253pm Sun, Jun 22 20254pm Sun, Jun 22 20255pm Sun, Jun 22 20256pm Sun, Jun 22 20257pm Sun, Jun 22 20258pm Sun, Jun 22 20259pm Sun, Jun 22 202510pm Sun, Jun 22 202511pm Sun, Jun 22 202512am Mon, Jun 23 20251am Mon, Jun 23 20252am Mon, Jun 23 20253am Mon, Jun 23 20254am Mon, Jun 23 20255am Mon, Jun 23 2025

Date	06/18						06/19
Hour (EDT)	18	19	20	21	22	23	00	01	02	03	04	05	06	07	08	09	10	11	12	13	14	15	16	17
Temperature (°F)	77	76	73	71	70	69	68	68	69	66	65	64	62	63	62	63	64	65	68	69	70	73	73	74
Dewpoint (°F)	69	70	69	69	68	68	67	67	67	66	65	64	62	62	61	61	61	61	61	61	61	62	62	61
Heat Index (°F)	77	76
Surface Wind (mph)	7	8	8	9	9	10	11	13	14	14	14	14	14	14	14	14	14	13	13	11	11	11	10	10
Wind Dir	SSE	SSE	SE	SSE	SSE	S	S	SSW	SW	SW	WSW	W	W	WNW	WNW	WNW	WNW	WNW	WNW	WNW	WNW	WNW	WNW	WNW
Gust					18	21	22	24	25	25	24	24	23	23	22	22	21	21	21	20	20	18	18	18
Sky Cover (%)	95	97	100	99	98	97	96	95	94	93	93	93	93	93	93	89	86	82	79	75	72	66	60	54
Precipitation Potential (%)	41	55	85	100	96	88	79	71	67	67	67	67	67	67	57	57	57	57	57	57	30	30	30	30
Relative Humidity (%)	76	81	87	92	94	95	96	95	93	100	99	99	100	96	97	94	90	86	81	76	74	68	69	65
Rain	Chc	Lkly	Ocnl	Ocnl	Ocnl	Ocnl	Ocnl	Lkly	Lkly	Lkly	Lkly	Lkly	Lkly	Lkly	Lkly	Lkly	Lkly	Lkly	Lkly	Lkly	Chc	Chc	Chc	Chc
Thunder	Chc	Lkly	Lkly	Lkly	Lkly	Lkly	Lkly	Lkly	SChc	SChc	SChc	--	--	--	SChc	SChc	SChc	SChc	SChc	SChc	Chc	Chc	Chc	Chc
Date							06/20
Hour (EDT)	18	19	20	21	22	23	00	01	02	03	04	05	06	07	08	09	10	11	12	13	14	15	16	17
Temperature (°F)	73	73	73	70	67	66	64	63	62	61	60	59	60	62	63	67	72	75	77	78	79	80	81	81
Dewpoint (°F)	62	62	61	62	61	61	60	60	59	59	58	58	59	60	62	63	64	65	65	66	66	66	66	66
Heat Index (°F)																		75	77	78	79	82	83	83
Surface Wind (mph)	9	8	8	7	7	6	6	6	6	5	5	5	6	6	6	7	7	8	9	9	10	10	10	10
Wind Dir	W	W	W	W	W	W	W	WSW	WSW	WSW	WSW	WSW	WSW	WSW	WSW	WSW	WSW	WSW	WSW	WSW	WSW	WSW	WSW	WSW
Gust																				18	20	20	20	18
Sky Cover (%)	48	42	36	32	28	24	19	15	11	14	16	19	21	24	26	28	29	31	38	46	53	54	54	55
Precipitation Potential (%)	30	30	7	7	7	7	7	7	7	7	7	7	7	7	11	11	11	11	11	11	18	18	18	18
Relative Humidity (%)	68	67	68	76	81	85	87	90	93	94	95	96	95	95	95	85	76	71	68	65	64	62	61	61
Rain	Chc	Chc	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	SChc	SChc	SChc	SChc
Thunder	Chc	Chc	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	SChc	SChc	SChc	SChc

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