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Montgomery County, IA

: September 2026 so far averaged 71.2°F in Montgomery 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
75.3°F
Warmest since 2025
30th warmest of 76
Low
59.5°F
Warmest since 1998
6th warmest of 76

No measurable precipitation in the county average of Montgomery County, IA for 2 days to Tuesday 29 September 2026 (county average from NOAA gridded data, 1951 to 2026).

Every 29 September low of the county average in Montgomery County, IA since 1951: 59.5°F in 2026; the lowest is 25.4°F, in 1984.
1998: 61.4°F1984: 25.4°F2026: 59.5°F 2026 59.5°F 1984 25.4°F since 1998 1951 2026
  • Normal range, 35.2 to 54.4°F
Every year as a table

Every 29 September high of the county average in Montgomery County, IA since 1951: 75.3°F in 2026; the highest is 91.3°F, in 2021.

YearHigh, °FLow, °F
202675.359.5
202586.551
20248551.7
202382.751.8
202267.937.9
202191.355.4
202061.841.3
201967.850.6
201849.143.7
201776.446.9
201664.545.9
20158455.2
20148154.7
201367.643.2
201274.140.8
201182.747.5
201074.747.9
200965.638.9
200879.754.4
20077844.3
200659.740.7
20056232.8
20047237.8
200360.230.6
200279.452.1
200174.442.4
200080.547.5
199964.738.3
199883.461.4
199775.648.7
199669.743.6
199581.853.8
199475.844.1
199366.935.3
199258.934.3
199173.240.7
199074.151
19897843.8
198867.459.5
198774.450.8
198684.259.8
198555.837.3
198453.125.4
198382.662.8
198278.760.6
198174.845.8
198076.449.4
197979.144.9
19787247.2
197773.650
197660.338.9
197567.843.1
197462.932.2
197368.550.9
197269.337.3
197185.958
197079.742.5
196974.453.5
196876.553.1
19676131.2
196665.246.1
196578.355.4
19647237.2
196371.342.3
196267.742.1
196165.241.9
196067.549.2
195957.137.4
19587347.7
195773.639.8
195680.143.1
19557458.5
195474.856.3
19539165.2
195283.252.2
195162.341.9

The month

August 2026 averaged 73.7°F in Montgomery County, IA, the warmest August in the county average since 2022, tied 48th warmest of 132 (with 2005 and 1973) (county average from NOAA's monthly county data, 1895 to 2026).

The month in words
  • Tuesday 29 September 2026: a high of 75.3°F averaged over Montgomery County, IA, the warmest 29 September in the county average since 2025, 30th warmest of 76 (county average from NOAA gridded data, 1951 to 2026).
  • Tuesday 29 September 2026: a low of 59.5°F averaged over Montgomery County, IA, the warmest 29 September night in the county average since 1998, tied 6th warmest of 76 (with 1988) (county average from NOAA gridded data, 1951 to 2026).
Days of the month without a value
0

Nearby

Omaha, NE 43.6 mi, the nearest city with its own station