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Henry County, IA

: September 2026 so far averaged 71.3°F in Henry County, IA, 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
19th warmest of 76
Low
50.2°F
Warmest since 2025
30th warmest of 76

No measurable precipitation in the county average of Henry County, IA 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 Henry County, IA since 1951: 78°F in 2026; the highest is 97.4°F, in 1953.
2025: 86.4°F1953: 97.4°F2026: 78°F 2026 78°F 1953 97.4°F since 2025 1951 2026
  • Normal range, 59.3 to 80.4°F
Every year as a table

Every 29 September low of the county average in Henry County, IA since 1951: 50.2°F in 2026; the lowest is 31.6°F, in 1984.

YearHigh, °FLow, °F
20267850.2
202586.455.7
202481.856
202375.358.2
202262.237.2
202184.258.5
202062.446.5
201964.855.9
201853.942.1
201774.144.1
201663.448.1
201581.258
201481.654.1
201373.744.7
201271.239
201170.152
201073.947.8
20096346.9
200876.656.6
200777.449.4
200662.842.9
200565.439.9
200469.740.9
20035734.8
200280.352.2
200167.743.1
200074.449.6
199957.844.9
199881.560.1
199776.153.9
199667.845.8
199579.450.6
199472.144.1
199365.638
199259.537.8
199171.242.2
199073.752.1
198975.240.9
198875.360.5
198775.455.1
198682.264.3
198567.749.4
198454.131.6
198383.756.9
198278.956.7
198168.341.8
198075.946.4
197984.553.8
197867.943.3
197771.648.1
197662.250.7
197565.447
197466.941.7
197374.661.5
197273.941.7
197187.662.5
197071.741.1
196975.948.5
196869.348.7
196757.433
196668.648.4
196576.154
196465.435.5
196377.646.2
196268.937.6
196163.236.5
196070.846
195965.845.2
195870.542.9
195768.433.8
195682.553.4
195578.154.8
195480.461.6
195397.460.4
195286.553.7
195159.134.6

The month

August 2026 averaged 73.5°F in Henry County, IA, the warmest August in the county average since 2022, tied 54th warmest of 132 (with 2022 and 1911) (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 Henry County, IA, the warmest 29 September in the county average since 2025, 19th warmest of 76 (county average from NOAA gridded data, 1951 to 2026).
  • Tuesday 29 September 2026: a low of 50.2°F averaged over Henry County, IA, the warmest 29 September night in the county average since 2025, 30th warmest of 76 (county average from NOAA gridded data, 1951 to 2026).
Days of the month without a value
0

Nearby

Burlington, IA 26.5 mi, the nearest city with its own station