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Jacksonville July Weather

Averages and records for weather in Jacksonville, Illinois in the month of July.

Typical Jacksonville July Weather 1991–2020
Average daily high	86.5 °F
Average daily low	63.6 °F
Average monthly precipitation	4.0 inches
Average monthly snow	none
Daily chance of precipitation	28.1%
Daily chance of snow	0%

Jacksonville July Weather Records 1895–2024
Highest temperature	114 °F	July 14, 1954
Lowest temperature	43 °F	July 15, 1930
Highest daily low	81 °F	July 8, 1936
Lowest daily high	61 °F	July 9, 2015
Hottest average high temperature	100.0 °F	1936
Coldest average high temperature	80.9 °F	2009
Most daily precipitation	4.0 inches	July 22, 2013
Most monthly precipitation	10.7 inches	2016
Most daily snow	none	-
Most monthly snow	none	-

Note: Daily averages are a moving average which includes 14 days before and after

Day	Average (°F)		Record (°F)
Day	High	Low	High	Low
July 1	85.8	62.8	105	49
July 2	85.8	62.8	101	48
July 3	86.0	62.9	101	48
July 4	86.1	63.0	106	45
July 5	86.2	63.2	105	48
July 6	86.3	63.3	103	46
July 7	86.3	63.4	104	49
July 8	86.4	63.5	105	46
July 9	86.4	63.6	105	51
July 10	86.5	63.6	106	48
July 11	86.5	63.6	107	48
July 12	86.6	63.6	109	48
July 13	86.6	63.7	108	48
July 14	86.6	63.7	114	45
July 15	86.6	63.8	110	43
July 16	86.6	63.7	106	45
July 17	86.5	63.7	103	48
July 18	86.6	63.7	107	49
July 19	86.6	63.6	109	50
July 20	86.6	63.6	110	51
July 21	86.6	63.6	111	46
July 22	86.6	63.6	109	47
July 23	86.4	63.4	110	48
July 24	86.3	63.3	109	51
July 25	86.2	63.2	108	50
July 26	86.2	63.2	107	43
July 27	86.3	63.2	108	48
July 28	86.3	63.1	107	48
July 29	86.2	63.0	104	47
July 30	86.1	63.0	102	47
July 31	86.0	62.9	101	48

Weather Station Details

Years	Station	Coordinates
1895–2024	Jacksonville 2E	location