Point Forecast: Pentwater MI  43.78N 86.43W (Elev. 183 m)	Last Update: 12:03 pm EDT Jul 20, 2026

[hide menu]

Weather Elements Fire Weather Probabilistic Forecasts (Experimental) Description | Survey Temperature (°C) Dewpoint (°C) Heat Index (°C) Surface Wind  ktmphkm/hm/s Sky Cover (%) Precipitation Potential (%) Relative Humidity (%) Rain Thunder Fog Mixing Height  x100ftx100m Trans. Wind  ktmphkm/hm/s Vent Rate (x1000 mph-m) 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: 12pm Mon, Jul 20 20261pm Mon, Jul 20 20262pm Mon, Jul 20 20263pm Mon, Jul 20 20264pm Mon, Jul 20 20265pm Mon, Jul 20 20266pm Mon, Jul 20 20267pm Mon, Jul 20 20268pm Mon, Jul 20 20269pm Mon, Jul 20 202610pm Mon, Jul 20 202611pm Mon, Jul 20 202612am Tue, Jul 21 20261am Tue, Jul 21 20262am Tue, Jul 21 20263am Tue, Jul 21 20264am Tue, Jul 21 20265am Tue, Jul 21 20266am Tue, Jul 21 20267am Tue, Jul 21 20268am Tue, Jul 21 20269am Tue, Jul 21 202610am Tue, Jul 21 202611am Tue, Jul 21 202612pm Tue, Jul 21 20261pm Tue, Jul 21 20262pm Tue, Jul 21 20263pm Tue, Jul 21 20264pm Tue, Jul 21 20265pm Tue, Jul 21 20266pm Tue, Jul 21 20267pm Tue, Jul 21 20268pm Tue, Jul 21 20269pm Tue, Jul 21 202610pm Tue, Jul 21 202611pm Tue, Jul 21 202612am Wed, Jul 22 20261am Wed, Jul 22 20262am Wed, Jul 22 20263am Wed, Jul 22 20264am Wed, Jul 22 20265am Wed, Jul 22 20266am Wed, Jul 22 20267am Wed, Jul 22 20268am Wed, Jul 22 20269am Wed, Jul 22 202610am Wed, Jul 22 202611am Wed, Jul 22 202612pm Wed, Jul 22 20261pm Wed, Jul 22 20262pm Wed, Jul 22 20263pm Wed, Jul 22 20264pm Wed, Jul 22 20265pm Wed, Jul 22 20266pm Wed, Jul 22 20267pm Wed, Jul 22 20268pm Wed, Jul 22 20269pm Wed, Jul 22 202610pm Wed, Jul 22 202611pm Wed, Jul 22 202612am Thu, Jul 23 20261am Thu, Jul 23 20262am Thu, Jul 23 20263am Thu, Jul 23 20264am Thu, Jul 23 20265am Thu, Jul 23 20266am Thu, Jul 23 20267am Thu, Jul 23 20268am Thu, Jul 23 20269am Thu, Jul 23 202610am Thu, Jul 23 202611am Thu, Jul 23 202612pm Thu, Jul 23 20261pm Thu, Jul 23 20262pm Thu, Jul 23 20263pm Thu, Jul 23 20264pm Thu, Jul 23 20265pm Thu, Jul 23 20266pm Thu, Jul 23 20267pm Thu, Jul 23 20268pm Thu, Jul 23 20269pm Thu, Jul 23 202610pm Thu, Jul 23 202611pm Thu, Jul 23 202612am Fri, Jul 24 20261am Fri, Jul 24 20262am Fri, Jul 24 20263am Fri, Jul 24 20264am Fri, Jul 24 20265am Fri, Jul 24 20266am Fri, Jul 24 20267am Fri, Jul 24 20268am Fri, Jul 24 20269am Fri, Jul 24 202610am Fri, Jul 24 202611am Fri, Jul 24 202612pm Fri, Jul 24 20261pm Fri, Jul 24 20262pm Fri, Jul 24 20263pm Fri, Jul 24 20264pm Fri, Jul 24 20265pm Fri, Jul 24 20266pm Fri, Jul 24 20267pm Fri, Jul 24 20268pm Fri, Jul 24 20269pm Fri, Jul 24 202610pm Fri, Jul 24 202611pm Fri, Jul 24 2026

Date	07/20												07/21
Hour (EDT)	12	13	14	15	16	17	18	19	20	21	22	23	00	01	02	03	04	05	06	07	08	09	10	11
Temperature (°C)	27	27	27	28	28	28	28	27	27	25	24	24	23	23	23	23	23	23	22	22	23	24	25	26
Dewpoint (°C)	20	21	21	21	21	21	21	21	21	21	21	22	22	22	22	22	21	21	21	20	21	21	21	21
Heat Index (°C)	29	29	29	30	29	29	31	29	28	25	24	24										24	25	26
Surface Wind (mph)	14	15	16	16	17	17	17	17	16	17	16	16	15	14	14	14	14	13	14	14	14	14	14	15
Wind Dir	SSW	SSW	SSW	SSW	SSW	S	S	S	S	SSW	SSW	S	SSW	SSW	SW	SW	WSW	W	W	W	WNW	WNW	WNW	WNW
Gust				29	31	31	32	32	32	33	32	30	29
Sky Cover (%)	73	70	68	47	39	35	39	56	67	89	84	67	50	45	31	32	34	37	38	36	37	36	32	31
Precipitation Potential (%)	2	3	4	4	8	11	16	17	68	85	86	85	85	44	13	10	6	6	4	4	2	2	0	4
Relative Humidity (%)	65	67	67	67	65	65	63	67	69	76	79	87	90	90	90	90	90	90	90	90	87	84	79	76
Rain	--	--	--	--	--	--	SChc	SChc	Lkly	Ocnl	Ocnl	Ocnl	Ocnl	Chc	--	--	--	--	--	--	--	--	--	--
Thunder	--	--	--	--	--	--	--	--	Chc	Chc	Chc	Chc	Chc	Chc	--	--	--	--	--	--	--	--	--	--
Date													07/22
Hour (EDT)	12	13	14	15	16	17	18	19	20	21	22	23	00	01	02	03	04	05	06	07	08	09	10	11
Temperature (°C)	26	26	26	27	26	26	26	24	23	22	21	19	18	18	17	17	17	17	17	17	18	19	21	22
Dewpoint (°C)	21	21	21	21	20	19	19	18	17	16	15	14	14	13	13	12	12	12	12	13	13	13	13	13
Heat Index (°C)	26	26	26	28	26	26	26	24
Surface Wind (mph)	15	15	15	16	17	17	18	20	18	20	18	17	16	16	16	16	16	16	16	16	16	16	16	16
Wind Dir	NW	NW	NW	NW	NNW	NNW	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	N	NNW	NNW
Gust				29	31	31	32	33	34	33	32	31	30	29
Sky Cover (%)	34	40	43	30	47	40	46	43	58	56	54	51	51	50	50	48	46	44	39	33	28	23	18	13
Precipitation Potential (%)	4	5	32	35	21	16	1	12	7	7	7	7	7	7	3	3	3	3	3	3	0	0	0	0
Relative Humidity (%)	76	74	74	69	69	67	67	69	68	68	70	73	75	75	75	75	75	75	75	75	73	68	63	59
Rain	--	--	Chc	Chc	SChc	SChc	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Thunder	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--

English Units Forecast Discussion 7-Day Forecast Hourly Weather Graph Area Forecast Matrices Local Climatology Daily Climate (Grand Rapids) Tabular State Forecast Daily Climate (Lansing) Hazardous Weather Outlook Daily Climate (Muskegon) 7 Day Forecast Lakes & Rivers (AHPS) Nearshore Forecast Regional Weather Roundup Regional Temp/Precip Table