Point Forecast: Olney IL  38.7N 88.1W (Elev. 449 ft)	Last Update: 6:36 pm CDT Jun 9, 2026

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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) 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: 7pm Tue, Jun 9 20268pm Tue, Jun 9 20269pm Tue, Jun 9 202610pm Tue, Jun 9 202611pm Tue, Jun 9 202612am Wed, Jun 10 20261am Wed, Jun 10 20262am Wed, Jun 10 20263am Wed, Jun 10 20264am Wed, Jun 10 20265am Wed, Jun 10 20266am Wed, Jun 10 20267am Wed, Jun 10 20268am Wed, Jun 10 20269am Wed, Jun 10 202610am Wed, Jun 10 202611am Wed, Jun 10 202612pm Wed, Jun 10 20261pm Wed, Jun 10 20262pm Wed, Jun 10 20263pm Wed, Jun 10 20264pm Wed, Jun 10 20265pm Wed, Jun 10 20266pm Wed, Jun 10 20267pm Wed, Jun 10 20268pm Wed, Jun 10 20269pm Wed, Jun 10 202610pm Wed, Jun 10 202611pm Wed, Jun 10 202612am Thu, Jun 11 20261am Thu, Jun 11 20262am Thu, Jun 11 20263am Thu, Jun 11 20264am Thu, Jun 11 20265am Thu, Jun 11 20266am Thu, Jun 11 20267am Thu, Jun 11 20268am Thu, Jun 11 20269am Thu, Jun 11 202610am Thu, Jun 11 202611am Thu, Jun 11 202612pm Thu, Jun 11 20261pm Thu, Jun 11 20262pm Thu, Jun 11 20263pm Thu, Jun 11 20264pm Thu, Jun 11 20265pm Thu, Jun 11 20266pm Thu, Jun 11 20267pm Thu, Jun 11 20268pm Thu, Jun 11 20269pm Thu, Jun 11 202610pm Thu, Jun 11 202611pm Thu, Jun 11 202612am Fri, Jun 12 20261am Fri, Jun 12 20262am Fri, Jun 12 20263am Fri, Jun 12 20264am Fri, Jun 12 20265am Fri, Jun 12 20266am Fri, Jun 12 20267am Fri, Jun 12 20268am Fri, Jun 12 20269am Fri, Jun 12 202610am Fri, Jun 12 202611am Fri, Jun 12 202612pm Fri, Jun 12 20261pm Fri, Jun 12 20262pm Fri, Jun 12 20263pm Fri, Jun 12 20264pm Fri, Jun 12 20265pm Fri, Jun 12 20266pm Fri, Jun 12 20267pm Fri, Jun 12 20268pm Fri, Jun 12 20269pm Fri, Jun 12 202610pm Fri, Jun 12 202611pm Fri, Jun 12 202612am Sat, Jun 13 20261am Sat, Jun 13 20262am Sat, Jun 13 20263am Sat, Jun 13 20264am Sat, Jun 13 20265am Sat, Jun 13 20266am Sat, Jun 13 20267am Sat, Jun 13 20268am Sat, Jun 13 20269am Sat, Jun 13 202610am Sat, Jun 13 202611am Sat, Jun 13 202612pm Sat, Jun 13 20261pm Sat, Jun 13 20262pm Sat, Jun 13 20263pm Sat, Jun 13 20264pm Sat, Jun 13 20265pm Sat, Jun 13 20266pm Sat, Jun 13 20267pm Sat, Jun 13 20268pm Sat, Jun 13 20269pm Sat, Jun 13 202610pm Sat, Jun 13 202611pm Sat, Jun 13 202612am Sun, Jun 14 20261am Sun, Jun 14 20262am Sun, Jun 14 20263am Sun, Jun 14 20264am Sun, Jun 14 20265am Sun, Jun 14 20266am Sun, Jun 14 2026

Date	06/09					06/10
Hour (CDT)	19	20	21	22	23	00	01	02	03	04	05	06	07	08	09	10	11	12	13	14	15	16	17	18
Temperature (°F)	92	89	87	84	79	79	78	77	76	76	76	75	76	78	81	86	88	90	91	92	92	92	91	90
Dewpoint (°F)	74	73	73	73	74	73	73	73	73	72	72	72	72	73	74	75	74	74	74	74	73	73	73	73
Heat Index (°F)	102	97	94	90	79	79	78	77	76	76	76	75	76	78	86	95	97	99	101	102	101	101	100	98
Surface Wind (mph)	7	6	6	6	6	7	7	7	7	8	8	8	8	9	10	11	13	13	14	15	15	15	15	14
Wind Dir	SSW	SSW	S	S	S	S	S	S	S	SSW	S	S	S	SSW	SSW	SSW	SSW	SSW	SSW	SSW	SSW	SSW	SSW	SSW
Gust									15	15	15	15	15	16	17	17	18	20	21	21	22	22	22	22
Sky Cover (%)	54	50	39	38	41	40	38	38	37	19	12	13	14	6	4	2	2	7	6	7	0	5	9	9
Precipitation Potential (%)	36	34	25	16	20	20	28	30	27	18	14	8	2	1	1	1	1	1	1	1	3	3	2	2
Relative Humidity (%)	56	59	63	72	85	82	85	88	90	87	87	90	87	85	79	70	63	60	58	56	54	54	56	58
Rain	Chc	Chc	Chc	SChc	SChc	SChc	Chc	Chc	Chc	SChc	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Thunder	Chc	Chc	Chc	SChc	SChc	SChc	SChc	SChc	SChc	SChc	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Date						06/11
Hour (CDT)	19	20	21	22	23	00	01	02	03	04	05	06	07	08	09	10	11	12	13	14	15	16	17	18
Temperature (°F)	89	86	84	83	82	81	80	79	78	77	77	76	78	79	82	86	88	90	91	92	93	93	92	91
Dewpoint (°F)	74	73	73	72	72	71	71	71	71	71	71	70	71	72	73	73	73	74	74	74	73	73	73	73
Heat Index (°F)	98	93	90	88	87	85	83	79	78	77	77	76	78	79	87	93	96	99	101	102	102	102	101	100
Surface Wind (mph)	13	11	11	11	10	10	10	9	10	9	9	9	9	10	11	11	13	14	15	16	17	17	17	17
Wind Dir	SSW	SSW	SSW	SSW	SSW	SSW	SSW	SSW	SSW	SSW	SSW	SSW	SSW	SSW	SW	SW	SW	SSW	SSW	SSW	SSW	SSW	SSW	SSW
Gust	21	20	20	20	20	18	18	18	20	18	18	17	17	18	18	18	20	21	22	23	24	25	25	25
Sky Cover (%)	0	4	4	20	19	25	19	34	34	26	15	12	5	3	11	19	18	18	17	14	12	9	8	6
Precipitation Potential (%)	1	1	0	0	0	0	4	0	0	0	1	3	6	6	6	6	6	6	5	5	5	5	5	5
Relative Humidity (%)	61	65	70	70	72	72	74	77	79	82	82	82	79	79	74	65	61	60	58	56	52	52	54	56
Rain	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Thunder	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--

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