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Galesburg August Weather

Averages and records for weather in Galesburg, Illinois in the month of August.

Typical Galesburg August Weather 1991–2020
Average daily high	82.5 °F
Average daily low	63.6 °F
Average monthly precipitation	3.9 inches
Average monthly snow	none
Daily chance of precipitation	27.4%
Daily chance of snow	0%

Galesburg August Weather Records 1895–2024
Highest temperature	102 °F	August 18, 1936
Lowest temperature	41 °F	August 24, 1908
Highest daily low	82 °F	August 24, 1947
Lowest daily high	60 °F	August 24, 1940
Hottest average high temperature	92.1 °F	1947
Coldest average high temperature	76.9 °F	1992
Most daily precipitation	5.4 inches	August 16, 1898
Most monthly precipitation	10.7 inches	1977
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
August 1	83.6	64.8	99	51
August 2	83.5	64.6	99	50
August 3	83.3	64.5	99	50
August 4	83.1	64.4	99	48
August 5	83.0	64.2	100	50
August 6	82.9	64.1	98	50
August 7	82.8	64.0	97	48
August 8	82.8	63.9	100	43
August 9	82.7	63.9	98	48
August 10	82.7	63.8	98	50
August 11	82.7	63.7	99	45
August 12	82.7	63.7	96	46
August 13	82.7	63.7	100	46
August 14	82.7	63.7	98	49
August 15	82.6	63.7	100	47
August 16	82.5	63.6	100	48
August 17	82.4	63.4	101	48
August 18	82.2	63.2	102	50
August 19	82.2	63.1	98	51
August 20	82.2	63.0	100	44
August 21	82.1	62.9	96	45
August 22	82.1	62.8	100	52
August 23	82.0	62.6	99	45
August 24	81.9	62.4	96	41
August 25	81.7	62.2	96	44
August 26	81.5	62.0	96	47
August 27	81.4	61.8	97	44
August 28	81.3	61.6	95	42
August 29	81.2	61.4	96	46
August 30	81.0	61.3	97	45
August 31	80.8	61.0	100	43

Weather Station Details

Years	Station	Coordinates
1895–2024	Galesburg	location