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Hancock County, IL

: September 2026 so far averaged 72.7°F in Hancock County, IL, the warmest 1 to 29 September in the county average since the data begin in 1951 (county average from NOAA gridded data, 1951 to 2026).

Last updated . This page normally updates every day; the latest update is late.

High
78°F
Warmest since 2025
23rd warmest of 76
Low
50.5°F
Warmest since 2025
32nd warmest of 76

No measurable precipitation in the county average of Hancock County, IL for 1 day to Tuesday 29 September 2026 (county average from NOAA gridded data, 1951 to 2026).

Every 29 September high of the county average in Hancock County, IL since 1951: 78°F in 2026; the highest is 98.7°F, in 1953.
2025: 88.2°F1953: 98.7°F2026: 78°F 2026 78°F 1953 98.7°F since 2025 1951 2026
  • Normal range, 61.1 to 81.1°F
Every year as a table

Every 29 September low of the county average in Hancock County, IL since 1951: 50.5°F in 2026; the lowest is 32.4°F, in 1984.

YearHigh, °FLow, °F
20267850.5
202588.256.6
202479.660.1
202376.257.8
202262.641.3
202186.359.4
202064.147
201972.362.3
201860.946.6
20177447.6
201663.651.3
201581.660.3
201482.757.3
201376.748.5
201270.843.7
201171.652.6
201074.548.1
20096447.5
200877.858
200779.150.7
200663.442.9
200568.541.5
200470.442.8
200358.636
200281.154.3
20016745.1
200073.949.3
199956.346.6
199881.862.8
199776.353.2
199668.245.6
199578.651.6
199471.346
199366.439.1
199261.139.4
199173.446.3
199075.855.2
198975.141.6
198880.160.4
198779.357
198685.566.1
198570.949.9
198453.932.4
198384.356.1
198279.657.3
198169.644.6
198075.845.8
197985.754.7
197868.644.1
197771.748.7
197664.550.1
197567.347
197469.242.5
197378.461.6
197275.344.4
197188.865.3
197073.643
196977.950.5
196872.849.9
196757.534.4
196668.851.6
196577.553.6
196467.438.3
196377.946.2
196269.937.9
196166.539
196072.549.1
195968.448
195870.343.5
195769.635.9
19568455.7
19558057.9
195482.463.3
195398.763.9
195287.856.8
19516136.3

The month

August 2026 averaged 74.3°F in Hancock County, IL, the warmest August in the county average since 2022, tied 60th warmest of 132 (with 1990, 1973 and 1921) (county average from NOAA's monthly county data, 1895 to 2026).

The month in words
  • Tuesday 29 September 2026: a high of 78°F averaged over Hancock County, IL, the warmest 29 September in the county average since 2025, 23rd warmest of 76 (county average from NOAA gridded data, 1951 to 2026).
  • Tuesday 29 September 2026: a low of 50.5°F averaged over Hancock County, IL, the warmest 29 September night in the county average since 2025, tied 32nd warmest of 76 (with 1969) (county average from NOAA gridded data, 1951 to 2026).
Days of the month without a value
0

Nearby

Burlington, IA 25.8 mi, the nearest city with its own station