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Portage August Weather

Averages and records for weather in Portage, Wisconsin in the month of August.

Typical Portage August Weather 1991–2020
Average daily high	80.2 °F
Average daily low	59.6 °F
Average monthly precipitation	4.1 inches
Average monthly snow	none
Daily chance of precipitation	33.7%
Daily chance of snow	0%

Portage August Weather Records 1889–2024
Highest temperature	103 °F	August 2, 1988
Lowest temperature	33 °F	August 31, 1967
Highest daily low	78 °F	August 1, 2006
Lowest daily high	57 °F	August 11, 1994
Hottest average high temperature	88.6 °F	1937
Coldest average high temperature	73.6 °F	1903
Most daily precipitation	7.5 inches	August 28, 2020
Most monthly precipitation	16.1 inches	1980
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	81.4	61.1	96	46
August 2	81.2	60.9	103	44
August 3	81.1	60.8	101	43
August 4	81.0	60.7	99	38
August 5	80.9	60.5	99	39
August 6	80.7	60.3	100	39
August 7	80.6	60.2	94	40
August 8	80.6	60.2	97	41
August 9	80.5	60.1	97	41
August 10	80.5	60.0	96	38
August 11	80.4	60.0	97	36
August 12	80.4	59.9	98	36
August 13	80.4	59.9	97	42
August 14	80.4	59.8	95	43
August 15	80.3	59.7	97	37
August 16	80.1	59.6	102	37
August 17	79.9	59.4	101	35
August 18	79.8	59.2	101	39
August 19	79.7	59.0	98	38
August 20	79.6	58.9	98	36
August 21	79.6	58.8	98	38
August 22	79.5	58.6	97	39
August 23	79.4	58.4	96	34
August 24	79.3	58.2	101	39
August 25	79.1	57.9	94	38
August 26	78.9	57.7	95	40
August 27	78.7	57.5	95	34
August 28	78.5	57.2	97	35
August 29	78.3	57.0	96	33
August 30	78.1	56.9	95	36
August 31	77.9	56.6	98	33

Weather Station Details

Years	Station	Coordinates
1889–2024	Portage WWTP	location