Belleville Average Weather by Day

Data and chart of the the average high and low temperature for every day of the year in Belleville, Illinois, based on NOAA data.
Also see:
What's the hottest day of the year in Belleville?
On average, July 15 is the hottest day of the year Belleville, Illinois. From 1991–2020, the average high temperature on July 15 was 90.0 °F and the average low was 68.2 °F.
What's the coldest day of the year in Belleville?
On average, January 17 is the coldest day of the year Belleville, Illinois. From 1991–2020, the average high temperature on January 17 was 42.6 °F, and the average low was 24.3 °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)
High Low
January 1 43.3 25.8
January 2 43.1 25.7
January 3 43.0 25.7
January 4 42.9 25.5
January 5 42.7 25.3
January 6 42.5 25.1
January 7 42.4 24.9
January 8 42.4 25.0
January 9 42.5 25.0
January 10 42.6 24.9
January 11 42.5 24.8
January 12 42.4 24.7
January 13 42.5 24.6
January 14 42.5 24.6
January 15 42.6 24.5
January 16 42.6 24.4
January 17 42.6 24.3
January 18 42.7 24.4
January 19 42.8 24.4
January 20 43.0 24.4
January 21 43.2 24.4
January 22 43.2 24.5
January 23 43.4 24.5
January 24 43.5 24.6
January 25 43.6 24.7
January 26 43.6 24.6
January 27 43.6 24.6
January 28 43.8 24.7
January 29 43.9 24.8
January 30 44.1 24.9
January 31 44.4 25.0
February 1 44.6 25.1
February 2 44.8 25.3
February 3 45.0 25.5
February 4 45.3 25.7
February 5 45.6 26.0
February 6 46.0 26.2
February 7 46.3 26.4
February 8 46.6 26.7
February 9 46.9 27.0
February 10 47.1 27.2
February 11 47.3 27.4
February 12 47.4 27.6
February 13 47.7 27.6
February 14 48.0 27.9
February 15 48.4 28.2
February 16 48.6 28.4
February 17 48.6 28.5
February 18 48.8 28.7
February 19 49.1 28.9
February 20 49.6 29.2
February 21 50.0 29.4
February 22 50.3 29.7
February 23 50.7 29.9
February 24 51.0 30.1
February 25 51.4 30.4
February 26 51.8 30.6
February 27 52.4 31.0
February 28 52.8 31.4
March 1 53.2 31.6
March 2 53.7 31.9
March 3 54.2 32.3
March 4 54.7 32.7
March 5 55.0 33.1
March 6 55.4 33.4
March 7 55.7 33.6
March 8 55.9 33.8
March 9 56.3 34.1
March 10 56.7 34.4
March 11 57.0 34.7
March 12 57.3 35.0
March 13 57.8 35.4
March 14 58.1 35.8
March 15 58.5 36.2
March 16 58.8 36.5
March 17 59.3 36.8
March 18 59.9 37.2
March 19 60.4 37.7
March 20 60.9 38.1
March 21 61.2 38.4
March 22 61.5 38.5
March 23 61.8 38.9
March 24 62.3 39.3
March 25 62.7 39.8
March 26 63.1 40.1
March 27 63.5 40.5
March 28 63.9 40.9
March 29 64.3 41.2
March 30 64.5 41.5
March 31 64.8 41.7
April 1 65.2 42.0
April 2 65.6 42.3
April 3 66.0 42.6
April 4 66.5 42.9
April 5 66.9 43.3
April 6 67.2 43.7
April 7 67.6 43.9
April 8 67.9 44.2
April 9 68.2 44.4
April 10 68.6 44.7
April 11 69.0 45.0
April 12 69.3 45.3
April 13 69.6 45.5
April 14 69.8 45.8
April 15 70.1 46.1
April 16 70.4 46.4
April 17 70.7 46.8
April 18 70.8 47.0
April 19 71.1 47.4
April 20 71.3 47.8
April 21 71.7 48.0
April 22 72.0 48.3
April 23 72.3 48.6
April 24 72.7 49.0
April 25 72.9 49.4
April 26 73.1 49.7
April 27 73.5 50.1
April 28 73.8 50.5
April 29 74.0 50.8
April 30 74.2 51.1
May 1 74.5 51.3
May 2 74.6 51.7
May 3 74.8 51.9
May 4 75.0 52.2
May 5 75.2 52.4
May 6 75.5 52.7
May 7 75.7 53.1
May 8 76.0 53.4
May 9 76.4 53.7
May 10 76.7 54.0
May 11 77.0 54.4
May 12 77.4 54.8
May 13 77.8 55.3
May 14 78.1 55.7
May 15 78.4 56.0
May 16 78.7 56.4
May 17 79.1 56.7
May 18 79.4 57.1
May 19 79.9 57.5
May 20 80.0 57.8
May 21 80.2 58.1
May 22 80.4 58.3
May 23 80.5 58.4
May 24 80.8 58.6
May 25 81.0 58.9
May 26 81.3 59.1
May 27 81.6 59.5
May 28 82.0 59.9
May 29 82.4 60.3
May 30 82.7 60.6
May 31 83.0 60.9
June 1 83.3 61.2
June 2 83.7 61.5
June 3 83.9 61.9
June 4 84.3 62.2
June 5 84.6 62.6
June 6 85.0 62.9
June 7 85.2 63.2
June 8 85.4 63.4
June 9 85.6 63.7
June 10 85.9 63.9
June 11 86.2 64.1
June 12 86.4 64.3
June 13 86.6 64.4
June 14 86.8 64.6
June 15 86.9 64.7
June 16 87.1 64.8
June 17 87.2 65.0
June 18 87.5 65.2
June 19 87.7 65.4
June 20 87.9 65.6
June 21 88.1 65.9
June 22 88.2 66.1
June 23 88.4 66.2
June 24 88.6 66.4
June 25 88.7 66.6
June 26 88.8 66.7
June 27 88.9 66.8
June 28 89.0 66.9
June 29 89.1 67.0
June 30 89.2 67.1
July 1 89.3 67.2
July 2 89.4 67.2
July 3 89.5 67.3
July 4 89.6 67.4
July 5 89.6 67.5
July 6 89.7 67.6
July 7 89.8 67.7
July 8 89.9 67.8
July 9 89.9 67.9
July 10 89.9 67.9
July 11 89.9 68.0
July 12 90.0 68.1
July 13 90.0 68.1
July 14 90.0 68.2
July 15 90.0 68.2
July 16 90.0 68.2
July 17 89.9 68.2
July 18 89.9 68.1
July 19 90.0 68.0
July 20 90.1 68.0
July 21 90.1 68.0
July 22 90.0 67.9
July 23 89.9 67.9
July 24 89.8 67.7
July 25 89.7 67.7
July 26 89.7 67.6
July 27 89.8 67.5
July 28 89.8 67.4
July 29 89.7 67.3
July 30 89.6 67.2
July 31 89.5 67.1
August 1 89.3 66.9
August 2 89.2 66.8
August 3 89.1 66.7
August 4 89.1 66.5
August 5 89.0 66.4
August 6 88.9 66.2
August 7 88.8 66.1
August 8 88.8 66.0
August 9 88.8 65.9
August 10 88.7 65.7
August 11 88.7 65.6
August 12 88.7 65.5
August 13 88.7 65.5
August 14 88.8 65.5
August 15 88.8 65.5
August 16 88.8 65.4
August 17 88.7 65.4
August 18 88.5 65.3
August 19 88.4 65.1
August 20 88.3 65.0
August 21 88.3 64.9
August 22 88.2 64.7
August 23 88.2 64.5
August 24 88.0 64.3
August 25 87.9 64.1
August 26 87.7 63.9
August 27 87.6 63.7
August 28 87.5 63.5
August 29 87.4 63.3
August 30 87.3 63.1
August 31 87.2 62.9
September 1 87.0 62.5
September 2 86.7 62.3
September 3 86.4 62.0
September 4 86.2 61.7
September 5 86.1 61.4
September 6 85.9 61.2
September 7 85.6 60.9
September 8 85.3 60.6
September 9 85.0 60.2
September 10 84.6 59.8
September 11 84.3 59.4
September 12 84.0 59.0
September 13 83.7 58.5
September 14 83.5 58.1
September 15 83.2 57.6
September 16 82.9 57.0
September 17 82.7 56.6
September 18 82.4 56.2
September 19 82.1 55.9
September 20 81.9 55.6
September 21 81.6 55.2
September 22 81.2 54.8
September 23 80.9 54.3
September 24 80.6 53.9
September 25 80.3 53.6
September 26 80.0 53.3
September 27 79.6 52.9
September 28 79.2 52.6
September 29 78.8 52.2
September 30 78.5 51.9
October 1 78.2 51.4
October 2 77.8 51.0
October 3 77.5 50.6
October 4 77.1 50.2
October 5 76.7 49.7
October 6 76.3 49.3
October 7 75.9 48.9
October 8 75.7 48.7
October 9 75.4 48.5
October 10 75.0 48.1
October 11 74.6 47.8
October 12 74.2 47.6
October 13 73.6 47.3
October 14 73.1 47.0
October 15 72.7 46.8
October 16 72.3 46.6
October 17 71.8 46.3
October 18 71.3 45.9
October 19 70.8 45.5
October 20 70.2 45.1
October 21 69.7 44.8
October 22 69.2 44.6
October 23 68.6 44.4
October 24 68.0 43.9
October 25 67.6 43.5
October 26 67.1 43.2
October 27 66.7 42.8
October 28 66.3 42.5
October 29 65.8 42.2
October 30 65.2 41.7
October 31 64.7 41.4
November 1 64.2 41.1
November 2 63.7 40.9
November 3 63.3 40.7
November 4 62.9 40.4
November 5 62.5 40.2
November 6 61.9 39.8
November 7 61.4 39.4
November 8 60.9 39.1
November 9 60.5 38.9
November 10 60.0 38.5
November 11 59.7 38.1
November 12 59.3 37.9
November 13 58.8 37.6
November 14 58.4 37.3
November 15 57.9 37.0
November 16 57.6 36.7
November 17 57.2 36.3
November 18 56.8 36.1
November 19 56.5 35.9
November 20 56.1 35.7
November 21 55.7 35.3
November 22 55.2 35.0
November 23 54.7 34.7
November 24 54.1 34.4
November 25 53.5 34.0
November 26 53.0 33.6
November 27 52.7 33.3
November 28 52.4 33.1
November 29 52.0 32.9
November 30 51.7 32.7
December 1 51.4 32.4
December 2 51.0 32.2
December 3 50.5 31.9
December 4 50.1 31.6
December 5 49.6 31.3
December 6 49.3 30.9
December 7 48.9 30.7
December 8 48.6 30.4
December 9 48.3 30.1
December 10 47.9 29.8
December 11 47.4 29.4
December 12 47.0 29.1
December 13 46.7 28.9
December 14 46.5 28.6
December 15 46.2 28.4
December 16 45.9 28.3
December 17 45.6 28.2
December 18 45.3 27.9
December 19 45.0 27.7
December 20 44.8 27.5
December 21 44.8 27.3
December 22 44.6 27.2
December 23 44.5 27.0
December 24 44.3 26.9
December 25 44.2 26.9
December 26 44.1 26.8
December 27 44.0 26.6
December 28 43.9 26.6
December 29 43.9 26.4
December 30 43.7 26.2
December 31 43.5 26.0
Weather Station Details
Years Station Coordinates
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