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Fort Madison August Weather

Averages and records for weather in Fort Madison, Iowa in the month of August.

Typical Fort Madison August Weather 1991–2020
Average daily high	84.3 °F
Average daily low	66.4 °F
Average monthly precipitation	3.8 inches
Average monthly snow	none
Daily chance of precipitation	27.5%
Daily chance of snow	0%

Fort Madison August Weather Records 1893–2024
Highest temperature	104 °F	August 30, 2013
Lowest temperature	42 °F	August 13, 1977
Highest daily low	83 °F	August 2, 2006
Lowest daily high	63 °F	August 19, 1963
Hottest average high temperature	93.0 °F	1983
Coldest average high temperature	79.1 °F	1992
Most daily precipitation	8.5 inches	August 6, 1959
Most monthly precipitation	14.1 inches	1970
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	85.2	67.6	103	48
August 2	85.1	67.4	103	54
August 3	84.9	67.3	100	50
August 4	84.8	67.1	100	46
August 5	84.7	67.0	96	48
August 6	84.6	66.8	98	50
August 7	84.5	66.7	99	50
August 8	84.5	66.7	101	50
August 9	84.5	66.6	98	47
August 10	84.5	66.6	96	47
August 11	84.4	66.5	100	47
August 12	84.4	66.5	98	48
August 13	84.4	66.6	100	42
August 14	84.5	66.6	100	51
August 15	84.4	66.6	102	50
August 16	84.3	66.4	100	54
August 17	84.1	66.3	103	53
August 18	83.9	66.1	104	48
August 19	83.9	66.1	103	55
August 20	83.9	66.0	100	49
August 21	83.9	65.8	102	46
August 22	83.8	65.7	98	53
August 23	83.7	65.5	95	49
August 24	83.5	65.3	101	49
August 25	83.3	65.1	98	45
August 26	83.1	64.9	99	48
August 27	83.0	64.7	98	50
August 28	82.9	64.5	100	45
August 29	82.7	64.3	95	48
August 30	82.5	64.1	104	51
August 31	82.3	63.8	99	45

Weather Station Details

Years	Station	Coordinates
1893–2024	Fort Madison	location