Portage Average Weather by Day

Data and chart of the the average high and low temperature for every day of the year in Portage, Wisconsin, based on NOAA data.

Also see:

What's the hottest day of the year in Portage?

On average, July 19 is the hottest day of the year Portage, Wisconsin. From 1991–2020, the average high temperature on July 19 was 82.2 °F and the average low was 61.9 °F.

What's the coldest day of the year in Portage?

On average, January 19 is the coldest day of the year Portage, Wisconsin. From 1991–2020, the average high temperature on January 19 was 26.4 °F, and the average low was 9.8 °F.

Average Temperature by Day

Average temperatures from 1991–2020. Daily averages are a mean of the period from 14 days before to 14 days after, inclusive.

Day	Average (°F)
Day	High	Low
January 1	28.7	13.4
January 2	28.6	13.2
January 3	28.5	13.0
January 4	28.2	12.8
January 5	28.0	12.3
January 6	27.8	11.9
January 7	27.5	11.5
January 8	27.4	11.4
January 9	27.4	11.4
January 10	27.3	11.3
January 11	27.1	11.1
January 12	26.9	10.8
January 13	26.7	10.6
January 14	26.7	10.5
January 15	26.6	10.3
January 16	26.5	10.1
January 17	26.4	10.0
January 18	26.4	9.9
January 19	26.4	9.8
January 20	26.5	9.9
January 21	26.6	9.9
January 22	26.6	9.9
January 23	26.7	9.9
January 24	26.8	10.0
January 25	26.8	10.1
January 26	26.8	10.0
January 27	26.8	9.8
January 28	26.7	9.7
January 29	26.9	9.7
January 30	27.0	9.7
January 31	27.1	9.9
February 1	27.3	9.9
February 2	27.4	10.2
February 3	27.6	10.4
February 4	27.9	10.7
February 5	28.3	11.1
February 6	28.6	11.3
February 7	28.9	11.5
February 8	29.2	11.8
February 9	29.5	12.0
February 10	29.8	12.4
February 11	30.0	12.6
February 12	30.2	12.7
February 13	30.4	12.9
February 14	30.7	13.3
February 15	31.0	13.6
February 16	31.3	13.8
February 17	31.5	14.0
February 18	31.6	14.0
February 19	31.8	14.4
February 20	32.2	14.7
February 21	32.5	15.0
February 22	32.8	15.3
February 23	33.1	15.7
February 24	33.5	16.0
February 25	33.8	16.3
February 26	34.3	16.7
February 27	34.8	17.2
February 28	35.3	17.7
March 1	35.9	18.1
March 2	36.3	18.4
March 3	36.8	18.8
March 4	37.4	19.3
March 5	37.8	19.7
March 6	38.2	20.2
March 7	38.5	20.5
March 8	38.9	20.8
March 9	39.3	21.1
March 10	39.7	21.5
March 11	40.2	21.9
March 12	40.5	22.3
March 13	41.1	22.8
March 14	41.7	23.3
March 15	42.2	23.8
March 16	42.7	24.3
March 17	43.3	24.8
March 18	43.9	25.4
March 19	44.5	25.9
March 20	45.1	26.4
March 21	45.6	26.8
March 22	46.0	27.2
March 23	46.5	27.5
March 24	47.0	27.9
March 25	47.5	28.4
March 26	47.9	28.7
March 27	48.2	29.1
March 28	48.7	29.5
March 29	49.0	29.8
March 30	49.2	30.2
March 31	49.6	30.6
April 1	50.0	31.1
April 2	50.5	31.5
April 3	50.9	31.8
April 4	51.3	32.2
April 5	51.9	32.7
April 6	52.3	33.0
April 7	52.7	33.4
April 8	53.1	33.8
April 9	53.6	34.0
April 10	54.1	34.4
April 11	54.6	34.8
April 12	55.0	35.0
April 13	55.3	35.3
April 14	55.6	35.5
April 15	55.9	35.8
April 16	56.3	36.2
April 17	56.6	36.6
April 18	57.0	36.9
April 19	57.4	37.3
April 20	57.9	37.8
April 21	58.3	38.3
April 22	58.7	38.6
April 23	59.3	39.1
April 24	59.8	39.6
April 25	60.3	40.1
April 26	60.8	40.5
April 27	61.3	40.9
April 28	61.8	41.3
April 29	62.1	41.7
April 30	62.4	41.9
May 1	62.6	42.3
May 2	63.0	42.7
May 3	63.5	43.0
May 4	63.8	43.2
May 5	64.1	43.5
May 6	64.5	43.8
May 7	64.9	44.2
May 8	65.3	44.6
May 9	65.8	45.1
May 10	66.1	45.4
May 11	66.4	45.8
May 12	66.7	46.2
May 13	67.2	46.7
May 14	67.7	47.1
May 15	68.1	47.5
May 16	68.6	47.9
May 17	69.1	48.2
May 18	69.5	48.6
May 19	69.9	48.9
May 20	70.1	49.1
May 21	70.4	49.5
May 22	70.6	49.7
May 23	70.9	49.9
May 24	71.2	50.2
May 25	71.5	50.6
May 26	71.8	50.9
May 27	72.2	51.3
May 28	72.7	51.8
May 29	73.1	52.2
May 30	73.5	52.5
May 31	73.9	52.8
June 1	74.1	53.2
June 2	74.4	53.6
June 3	74.9	54.0
June 4	75.2	54.5
June 5	75.5	54.8
June 6	75.8	55.2
June 7	76.0	55.5
June 8	76.3	55.8
June 9	76.6	56.2
June 10	77.0	56.5
June 11	77.3	56.8
June 12	77.6	57.1
June 13	77.8	57.4
June 14	78.0	57.6
June 15	78.2	57.8
June 16	78.4	58.1
June 17	78.6	58.4
June 18	78.8	58.6
June 19	79.1	58.8
June 20	79.3	59.1
June 21	79.6	59.4
June 22	79.8	59.6
June 23	80.0	59.7
June 24	80.2	59.9
June 25	80.4	60.0
June 26	80.5	60.1
June 27	80.7	60.2
June 28	80.8	60.4
June 29	80.9	60.5
June 30	81.0	60.6
July 1	81.1	60.7
July 2	81.3	60.9
July 3	81.4	61.0
July 4	81.5	61.2
July 5	81.7	61.3
July 6	81.7	61.4
July 7	81.8	61.5
July 8	81.9	61.6
July 9	82.0	61.7
July 10	82.0	61.7
July 11	82.0	61.7
July 12	82.0	61.7
July 13	82.0	61.7
July 14	82.0	61.8
July 15	82.0	61.8
July 16	82.0	61.8
July 17	82.0	61.9
July 18	82.1	61.9
July 19	82.2	61.9
July 20	82.2	61.9
July 21	82.2	61.9
July 22	82.1	61.8
July 23	82.1	61.7
July 24	82.0	61.6
July 25	81.9	61.6
July 26	81.9	61.7
July 27	81.9	61.7
July 28	81.8	61.7
July 29	81.7	61.6
July 30	81.6	61.5
July 31	81.5	61.3
August 1	81.4	61.1
August 2	81.2	60.9
August 3	81.1	60.8
August 4	81.0	60.7
August 5	80.9	60.5
August 6	80.7	60.3
August 7	80.6	60.2
August 8	80.6	60.2
August 9	80.5	60.1
August 10	80.5	60.0
August 11	80.4	60.0
August 12	80.4	59.9
August 13	80.4	59.9
August 14	80.4	59.8
August 15	80.3	59.7
August 16	80.1	59.6
August 17	79.9	59.4
August 18	79.8	59.2
August 19	79.7	59.0
August 20	79.6	58.9
August 21	79.6	58.8
August 22	79.5	58.6
August 23	79.4	58.4
August 24	79.3	58.2
August 25	79.1	57.9
August 26	78.9	57.7
August 27	78.7	57.5
August 28	78.5	57.2
August 29	78.3	57.0
August 30	78.1	56.9
August 31	77.9	56.6
September 1	77.6	56.3
September 2	77.4	56.0
September 3	77.2	55.7
September 4	77.1	55.5
September 5	76.8	55.2
September 6	76.5	54.9
September 7	76.3	54.6
September 8	75.9	54.2
September 9	75.5	53.8
September 10	75.1	53.3
September 11	74.7	52.9
September 12	74.4	52.5
September 13	74.1	52.1
September 14	73.6	51.7
September 15	73.2	51.2
September 16	72.8	50.8
September 17	72.3	50.4
September 18	71.9	49.9
September 19	71.4	49.5
September 20	71.1	49.2
September 21	70.5	48.7
September 22	70.0	48.2
September 23	69.6	47.9
September 24	69.3	47.6
September 25	69.0	47.2
September 26	68.7	46.8
September 27	68.3	46.4
September 28	68.0	46.0
September 29	67.6	45.6
September 30	67.2	45.2
October 1	66.6	44.8
October 2	66.1	44.4
October 3	65.6	44.0
October 4	65.1	43.6
October 5	64.6	43.1
October 6	64.1	42.7
October 7	63.7	42.3
October 8	63.3	41.9
October 9	62.8	41.5
October 10	62.4	41.2
October 11	61.9	40.8
October 12	61.4	40.5
October 13	60.9	40.2
October 14	60.5	39.9
October 15	60.0	39.6
October 16	59.6	39.2
October 17	59.1	39.0
October 18	58.6	38.7
October 19	58.1	38.3
October 20	57.7	38.0
October 21	57.3	37.6
October 22	56.8	37.3
October 23	56.3	36.9
October 24	55.7	36.5
October 25	55.1	36.2
October 26	54.5	35.9
October 27	54.0	35.5
October 28	53.5	35.1
October 29	53.0	34.7
October 30	52.5	34.3
October 31	52.1	33.9
November 1	51.6	33.5
November 2	51.0	33.2
November 3	50.5	32.9
November 4	50.1	32.6
November 5	49.6	32.3
November 6	49.1	32.1
November 7	48.6	31.7
November 8	48.1	31.3
November 9	47.6	30.9
November 10	47.2	30.5
November 11	46.7	30.1
November 12	46.3	29.8
November 13	45.8	29.4
November 14	45.2	29.0
November 15	44.7	28.6
November 16	44.3	28.3
November 17	43.9	28.0
November 18	43.4	27.7
November 19	43.0	27.3
November 20	42.6	26.9
November 21	42.1	26.5
November 22	41.6	26.0
November 23	41.0	25.5
November 24	40.4	25.1
November 25	39.8	24.6
November 26	39.3	24.3
November 27	38.9	23.9
November 28	38.5	23.5
November 29	38.1	23.1
November 30	37.7	22.8
December 1	37.4	22.5
December 2	37.0	22.1
December 3	36.6	21.7
December 4	36.0	21.2
December 5	35.6	20.7
December 6	35.2	20.3
December 7	34.9	20.0
December 8	34.5	19.8
December 9	34.1	19.5
December 10	33.8	19.1
December 11	33.4	18.6
December 12	33.0	18.3
December 13	32.8	18.0
December 14	32.5	17.7
December 15	32.3	17.4
December 16	32.0	17.2
December 17	31.8	16.9
December 18	31.4	16.6
December 19	31.1	16.2
December 20	30.8	15.9
December 21	30.6	15.7
December 22	30.4	15.5
December 23	30.3	15.3
December 24	30.1	15.0
December 25	29.9	14.8
December 26	29.7	14.6
December 27	29.6	14.4
December 28	29.5	14.2
December 29	29.4	14.1
December 30	29.2	13.9
December 31	28.9	13.6

Weather Station Details

Years	Station	Coordinates
1889–2024	Portage WWTP	location