Point Forecast: 2 Miles SSE Marietta, Cobb County-McCollum Field Airport GA  33.99N 84.57W (Elev. 1129 ft)	Last Update: 8:36 pm EDT Aug 14, 2026

[hide menu]

Weather Elements Fire Weather Aviation Weather 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) Dispersion Index Low Visibility Occurrence Risk Index Turner Stability Index Ceiling Height Visibility

48-Hour Period Starting: 9pm Fri, Aug 14 202610pm Fri, Aug 14 202611pm Fri, Aug 14 202612am Sat, Aug 15 20261am Sat, Aug 15 20262am Sat, Aug 15 20263am Sat, Aug 15 20264am Sat, Aug 15 20265am Sat, Aug 15 20266am Sat, Aug 15 20267am Sat, Aug 15 20268am Sat, Aug 15 20269am Sat, Aug 15 202610am Sat, Aug 15 202611am Sat, Aug 15 202612pm Sat, Aug 15 20261pm Sat, Aug 15 20262pm Sat, Aug 15 20263pm Sat, Aug 15 20264pm Sat, Aug 15 20265pm Sat, Aug 15 20266pm Sat, Aug 15 20267pm Sat, Aug 15 20268pm Sat, Aug 15 20269pm Sat, Aug 15 202610pm Sat, Aug 15 202611pm Sat, Aug 15 202612am Sun, Aug 16 20261am Sun, Aug 16 20262am Sun, Aug 16 20263am Sun, Aug 16 20264am Sun, Aug 16 20265am Sun, Aug 16 20266am Sun, Aug 16 20267am Sun, Aug 16 20268am Sun, Aug 16 20269am Sun, Aug 16 202610am Sun, Aug 16 202611am Sun, Aug 16 202612pm Sun, Aug 16 20261pm Sun, Aug 16 20262pm Sun, Aug 16 20263pm Sun, Aug 16 20264pm Sun, Aug 16 20265pm Sun, Aug 16 20266pm Sun, Aug 16 20267pm Sun, Aug 16 20268pm Sun, Aug 16 20269pm Sun, Aug 16 202610pm Sun, Aug 16 202611pm Sun, Aug 16 202612am Mon, Aug 17 20261am Mon, Aug 17 20262am Mon, Aug 17 20263am Mon, Aug 17 20264am Mon, Aug 17 20265am Mon, Aug 17 20266am Mon, Aug 17 20267am Mon, Aug 17 20268am Mon, Aug 17 20269am Mon, Aug 17 202610am Mon, Aug 17 202611am Mon, Aug 17 202612pm Mon, Aug 17 20261pm Mon, Aug 17 20262pm Mon, Aug 17 20263pm Mon, Aug 17 20264pm Mon, Aug 17 20265pm Mon, Aug 17 20266pm Mon, Aug 17 20267pm Mon, Aug 17 20268pm Mon, Aug 17 20269pm Mon, Aug 17 202610pm Mon, Aug 17 202611pm Mon, Aug 17 202612am Tue, Aug 18 20261am Tue, Aug 18 20262am Tue, Aug 18 20263am Tue, Aug 18 20264am Tue, Aug 18 20265am Tue, Aug 18 20266am Tue, Aug 18 20267am Tue, Aug 18 20268am Tue, Aug 18 20269am Tue, Aug 18 202610am Tue, Aug 18 202611am Tue, Aug 18 202612pm Tue, Aug 18 20261pm Tue, Aug 18 20262pm Tue, Aug 18 20263pm Tue, Aug 18 20264pm Tue, Aug 18 20265pm Tue, Aug 18 20266pm Tue, Aug 18 20267pm Tue, Aug 18 20268pm Tue, Aug 18 20269pm Tue, Aug 18 202610pm Tue, Aug 18 202611pm Tue, Aug 18 202612am Wed, Aug 19 20261am Wed, Aug 19 20262am Wed, Aug 19 20263am Wed, Aug 19 20264am Wed, Aug 19 20265am Wed, Aug 19 20266am Wed, Aug 19 20267am Wed, Aug 19 20268am Wed, Aug 19 2026

Date	08/14			08/15
Hour (EDT)	21	22	23	00	01	02	03	04	05	06	07	08	09	10	11	12	13	14	15	16	17	18	19	20
Temperature (°F)	83	81	80	78	77	77	76	75	75	75	75	76	78	83	86	89	91	92	92	93	92	91	90	86
Dewpoint (°F)	74	74	74	73	73	72	72	72	72	72	72	72	73	74	74	75	74	74	74	73	73	73	74	74
Heat Index (°F)	89	86	84	78	77	77	76	75	75	75	75	76	78	90	95	98	101	102	102	103	101	100	99	94
Surface Wind (mph)	2	2	2	1	1	1	1	1	2	2	2	2	3	5	6	7	7	8	8	7	7	6	5	3
Wind Dir	W	W	W	W	W	W	W	W	W	W	W	W	NW	NW	NW	NW	NW	NW	NW	NW	NW	NW	NW	NW
Gust
Sky Cover (%)	28	19	21	21	15	15	22	19	20	13	19	20	17	11	8	12	15	23	29	35	33	32	32	35
Precipitation Potential (%)	5	6	4	1	1	2	2	2	2	2	2	3	3	3	3	3	5	16	18	19	18	17	12	7
Relative Humidity (%)	75	78	82	84	86	87	88	89	90	90	90	90	85	74	68	63	58	56	54	53	54	55	59	67
Rain	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	SChc	SChc	SChc	SChc	SChc	--	--
Thunder	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	SChc	SChc	SChc	SChc	SChc	--	--
Date				08/16
Hour (EDT)	21	22	23	00	01	02	03	04	05	06	07	08	09	10	11	12	13	14	15	16	17	18	19	20
Temperature (°F)	83	81	80	79	78	77	77	76	76	75	75	76	78	82	86	89	91	92	94	94	94	93	91	88
Dewpoint (°F)	74	74	73	73	72	72	72	72	72	72	72	72	73	74	74	74	74	73	73	72	72	72	73	73
Heat Index (°F)	90	87	84	79	78	77	77	76	76	75	75	76	78	88	94	98	100	101	103	103	102	101	99	96
Surface Wind (mph)	3	2	1	1	1	1	1	1	2	2	2	2	2	3	5	5	6	7	7	7	7	6	5	5
Wind Dir	NW	NW	W	W	W	W	W	W	W	NW	NW	NW	NW	NW	W	NW	NW	NW	NW	NW	NW	NW	W	W
Gust
Sky Cover (%)	25	29	43	42	40	34	18	11	21	12	17	22	3	10	18	20	21	23	21	20	18	18	17	16
Precipitation Potential (%)	7	2	4	3	7	1	0	0	0	0	2	4	4	4	4	4	4	13	13	13	13	13	13	2
Relative Humidity (%)	73	77	80	82	84	85	86	87	88	89	89	90	85	77	69	62	57	54	51	49	49	52	56	61
Rain	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Thunder	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--

International System of Units Forecast Discussion 7-Day Forecast Hourly Weather Graph Climate Report (hi/lo) 7-day Graphical Fcst Hazardous Weather Outlook Georgia's Current Weather Build Your Own Page Weather Maps Computer Models All Forecast Products Past Weather Information NWS Peachtree City Home