Point Forecast: Naperville IL  41.77N 88.15W	Last Update: 1:26 pm CDT Jul 3, 2025

[hide menu]

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) 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: 1pm Thu, Jul 3 20252pm Thu, Jul 3 20253pm Thu, Jul 3 20254pm Thu, Jul 3 20255pm Thu, Jul 3 20256pm Thu, Jul 3 20257pm Thu, Jul 3 20258pm Thu, Jul 3 20259pm Thu, Jul 3 202510pm Thu, Jul 3 202511pm Thu, Jul 3 202512am Fri, Jul 4 20251am Fri, Jul 4 20252am Fri, Jul 4 20253am Fri, Jul 4 20254am Fri, Jul 4 20255am Fri, Jul 4 20256am Fri, Jul 4 20257am Fri, Jul 4 20258am Fri, Jul 4 20259am Fri, Jul 4 202510am Fri, Jul 4 202511am Fri, Jul 4 202512pm Fri, Jul 4 20251pm Fri, Jul 4 20252pm Fri, Jul 4 20253pm Fri, Jul 4 20254pm Fri, Jul 4 20255pm Fri, Jul 4 20256pm Fri, Jul 4 20257pm Fri, Jul 4 20258pm Fri, Jul 4 20259pm Fri, Jul 4 202510pm Fri, Jul 4 202511pm Fri, Jul 4 202512am Sat, Jul 5 20251am Sat, Jul 5 20252am Sat, Jul 5 20253am Sat, Jul 5 20254am Sat, Jul 5 20255am Sat, Jul 5 20256am Sat, Jul 5 20257am Sat, Jul 5 20258am Sat, Jul 5 20259am Sat, Jul 5 202510am Sat, Jul 5 202511am Sat, Jul 5 202512pm Sat, Jul 5 20251pm Sat, Jul 5 20252pm Sat, Jul 5 20253pm Sat, Jul 5 20254pm Sat, Jul 5 20255pm Sat, Jul 5 20256pm Sat, Jul 5 20257pm Sat, Jul 5 20258pm Sat, Jul 5 20259pm Sat, Jul 5 202510pm Sat, Jul 5 202511pm Sat, Jul 5 202512am Sun, Jul 6 20251am Sun, Jul 6 20252am Sun, Jul 6 20253am Sun, Jul 6 20254am Sun, Jul 6 20255am Sun, Jul 6 20256am Sun, Jul 6 20257am Sun, Jul 6 20258am Sun, Jul 6 20259am Sun, Jul 6 202510am Sun, Jul 6 202511am Sun, Jul 6 202512pm Sun, Jul 6 20251pm Sun, Jul 6 20252pm Sun, Jul 6 20253pm Sun, Jul 6 20254pm Sun, Jul 6 20255pm Sun, Jul 6 20256pm Sun, Jul 6 20257pm Sun, Jul 6 20258pm Sun, Jul 6 20259pm Sun, Jul 6 202510pm Sun, Jul 6 202511pm Sun, Jul 6 202512am Mon, Jul 7 20251am Mon, Jul 7 20252am Mon, Jul 7 20253am Mon, Jul 7 20254am Mon, Jul 7 20255am Mon, Jul 7 20256am Mon, Jul 7 20257am Mon, Jul 7 20258am Mon, Jul 7 20259am Mon, Jul 7 202510am Mon, Jul 7 202511am Mon, Jul 7 202512pm Mon, Jul 7 20251pm Mon, Jul 7 20252pm Mon, Jul 7 20253pm Mon, Jul 7 20254pm Mon, Jul 7 20255pm Mon, Jul 7 20256pm Mon, Jul 7 20257pm Mon, Jul 7 20258pm Mon, Jul 7 20259pm Mon, Jul 7 202510pm Mon, Jul 7 202511pm Mon, Jul 7 202512am Tue, Jul 8 2025

Date	07/03											07/04
Hour (CDT)	13	14	15	16	17	18	19	20	21	22	23	00	01	02	03	04	05	06	07	08	09	10	11	12
Temperature (°F)	91	92	93	93	92	90	88	87	83	80	77	75	74	73	72	70	70	70	72	76	80	84	86	88
Dewpoint (°F)	62	62	61	61	62	63	64	65	64	65	66	66	66	66	66	66	66	67	68	69	70	71	70	69
Heat Index (°F)	92	93	93	93	92	91	90	89	84	81	77	75								76	83	89	92	93
Surface Wind (mph)	6	7	7	7	7	7	7	7	6	6	5	5	5	3	3	3	3	3	5	6	7	7	8	8
Wind Dir	W	W	W	WSW	WSW	W	WSW	SW	S	SE	SE	SE	SSE	SSE	S	S	S	SSW	SSW	SW	SW	SSW	S	SSW
Gust																								13
Sky Cover (%)	45	48	51	54	51	48	45	30	24	20	20	19	19	23	26	30	35	41	46	56	51	48	48	48
Precipitation Potential (%)	6	9	12	15	17	19	18	16	12	8	8	8	10	10	10	10	10	10	15	15	15	15	15	15
Relative Humidity (%)	38	36	35	35	37	40	45	47	54	61	68	73	75	79	83	88	90	91	85	79	73	66	59	54
Rain	--	--	--	SChc	SChc	SChc	SChc	SChc	--	--	--	--	--	--	--	--	--	--	SChc	SChc	SChc	SChc	SChc	SChc
Thunder	--	--	--	SChc	SChc	SChc	SChc	SChc	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Date												07/05
Hour (CDT)	13	14	15	16	17	18	19	20	21	22	23	00	01	02	03	04	05	06	07	08	09	10	11	12
Temperature (°F)	90	91	92	93	93	92	90	87	84	81	78	76	75	74	73	73	72	72	75	79	83	87	90	92
Dewpoint (°F)	69	68	67	67	67	68	69	68	68	68	68	68	68	68	67	67	67	68	68	68	68	67	67	66
Heat Index (°F)	94	95	96	97	97	96	94	91	87	84	78	77	75						75	82	86	90	93	95
Surface Wind (mph)	9	9	10	10	9	9	8	7	6	6	6	6	6	7	7	7	7	7	7	9	10	11	13	14
Wind Dir	SSW	SSW	SSW	SSW	SSW	SSW	SSW	SSW	SSW	S	S	S	S	S	S	S	S	SSW	S	SSW	SSW	SSW	SSW	SSW
Gust	14	14	15	15	15	14	13	13	11			11	11		13	13	13	13	14	15	16	18	20	21
Sky Cover (%)	48	41	35	28	28	27	27	26	24	23	24	25	26	25	24	23	20	17	14	14	14	14	18	23
Precipitation Potential (%)	11	11	11	11	11	11	3	3	3	3	3	3	3	3	3	3	3	3	4	4	4	4	4	4
Relative Humidity (%)	50	46	44	43	43	46	50	55	60	65	70	75	78	80	81	82	84	85	78	68	59	51	46	42
Rain	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Thunder	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--

International System of Units Forecast Discussion 7-Day Forecast Hourly Weather Graph Graphical Hazardous Weather Outlook Hazardous Weather Regional Weather Conditions Past Weather Information