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Rantoul September Weather

Averages and records for weather in Rantoul, Illinois in the month of September.

Typical Rantoul September Weather 1991–2020
Average daily high	80.0 °F
Average daily low	53.7 °F
Average monthly precipitation	3.3 inches
Average monthly snow	none
Daily chance of precipitation	21.7%
Daily chance of snow	0%

Rantoul September Weather Records 1893–2023
Highest temperature	103 °F	September 5, 1899
Lowest temperature	24 °F	September 30, 1899
Highest daily low	79 °F	September 22, 2017
Lowest daily high	49 °F	September 29, 1899
Hottest average high temperature	88.3 °F	1897
Coldest average high temperature	72.1 °F	1975
Most daily precipitation	4.0 inches	September 15, 2008
Most monthly precipitation	10.0 inches	2008
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
September 1	83.9	59.0	100	44
September 2	83.6	58.7	101	42
September 3	83.5	58.4	99	44
September 4	83.3	58.1	98	40
September 5	83.2	57.8	103	42
September 6	83.0	57.6	99	41
September 7	82.8	57.4	101	46
September 8	82.5	57.1	98	38
September 9	82.2	56.7	98	45
September 10	81.8	56.3	98	41
September 11	81.5	55.8	99	42
September 12	81.1	55.4	100	42
September 13	80.8	55.0	99	34
September 14	80.4	54.5	96	34
September 15	80.2	54.1	97	40
September 16	79.9	53.7	98	36
September 17	79.7	53.2	92	38
September 18	79.3	52.8	95	34
September 19	78.9	52.4	94	35
September 20	78.5	52.1	95	36
September 21	78.2	51.6	95	34
September 22	77.8	51.2	96	34
September 23	77.4	50.8	96	32
September 24	77.2	50.4	94	33
September 25	76.9	50.0	94	29
September 26	76.6	49.6	93	30
September 27	76.2	49.2	93	31
September 28	75.7	48.8	93	36
September 29	75.3	48.3	99	29
September 30	74.8	47.9	94	24

Weather Station Details

Years	Station	Coordinates
1893–2023	Rantoul	location