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Belleville July Weather

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

Typical Belleville July Weather 1991–2020
Average daily high	89.8 °F
Average daily low	68.1 °F
Average monthly precipitation	4.0 inches
Average monthly snow	none
Daily chance of precipitation	24.0%
Daily chance of snow	0%

Belleville July Weather Records 1948–2024
Highest temperature	110 °F	July 14, 1954
Lowest temperature	43 °F	July 6, 1972
Highest daily low	88 °F	July 18, 1993
Lowest daily high	66 °F	July 14, 1990
Hottest average high temperature	99.2 °F	2012
Coldest average high temperature	82.7 °F	1960
Most daily precipitation	3.9 inches	July 28, 1979
Most monthly precipitation	9.5 inches	2010
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	89.3	67.2	104	53
July 2	89.4	67.2	102	53
July 3	89.5	67.3	100	52
July 4	89.6	67.4	102	47
July 5	89.6	67.5	104	47
July 6	89.7	67.6	105	43
July 7	89.8	67.7	105	47
July 8	89.9	67.8	105	50
July 9	89.9	67.9	106	52
July 10	89.9	67.9	108	52
July 11	89.9	68.0	100	53
July 12	90.0	68.1	106	53
July 13	90.0	68.1	104	52
July 14	90.0	68.2	110	49
July 15	90.0	68.2	104	51
July 16	90.0	68.2	105	50
July 17	89.9	68.2	102	50
July 18	89.9	68.1	104	49
July 19	90.0	68.0	105	50
July 20	90.1	68.0	104	56
July 21	90.1	68.0	101	47
July 22	90.0	67.9	102	47
July 23	89.9	67.9	102	56
July 24	89.8	67.7	105	53
July 25	89.7	67.7	105	55
July 26	89.7	67.6	105	52
July 27	89.8	67.5	104	46
July 28	89.8	67.4	103	53
July 29	89.7	67.3	103	49
July 30	89.6	67.2	102	50
July 31	89.5	67.1	102	49

Weather Station Details

Years	Station	Coordinates
1948–2024	Belleville SIU Research	location