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Marshall County, IA

: September 2026 so far brought 6.51 in of precipitation in Marshall County, IA, the wettest 1 to 29 September in the county average since 2018, 5th wettest of 76 (county average from NOAA gridded data, 1951 to 2026).

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

High
75.8°F
Warmest since 2025
23rd warmest of 76
Low
53.7°F
Warmest since 2024
16th warmest of 76

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

Every 29 September low of the county average in Marshall County, IA since 1951: 53.7°F in 2026; the lowest is 26.3°F, in 1984.
2024: 54.2°F1984: 26.3°F2026: 53.7°F 2026 53.7°F 1984 26.3°F since 2024 1951 2026
  • Normal range, 35.9 to 54.4°F
Every year as a table

Every 29 September high of the county average in Marshall County, IA since 1951: 75.8°F in 2026; the highest is 90.3°F, in 1953.

YearHigh, °FLow, °F
202675.853.7
202585.651.5
202483.354.2
20237558
202263.333.1
202185.857.3
20206146.9
201970.252.6
20185139.3
201776.445.7
20166248.7
201583.756.2
201481.854.3
201369.741.8
201274.237.3
201175.952.8
201071.146.4
200961.843.4
20087255
200773.943.2
200659.440.4
200559.636
200469.137.3
200356.432
200273.648.2
200171.541
200076.145.6
199964.139.7
199881.755
199776.952.7
199667.945.9
199580.549.9
199470.241.6
199361.535
199257.831.9
199168.536.9
199072.849.3
198977.643.7
198865.657.5
198773.253.4
198678.257.6
198555.540.7
198452.326.3
198384.157.9
198279.154.6
198167.935.5
19807748.5
197981.452.8
197869.139.7
197772.244
197660.642.3
197565.949.3
197459.934.4
197367.358.9
197269.436.9
197184.652.8
197072.241.1
196973.746.6
196863.846.6
196758.527.9
196666.844.1
196574.953.9
196466.933.9
196370.641.4
196268.636.3
196160.235.9
196064.146.4
195958.238.4
195872.543.7
195770.235.3
195677.744
195574.651.8
195476.557.1
195390.360.5
195284.850.5
195156.333.9

The month

September 2026 so far averaged 68°F in Marshall County, IA, the warmest 1 to 29 September in the county average since 2019, 5th warmest of 76 (county average from NOAA gridded data, 1951 to 2026).

The month in words
  • August 2026 averaged 72°F in Marshall County, IA, the warmest August in the county average since 2023, tied 45th warmest of 132 (with 2022 and 1953) (county average from NOAA's monthly county data, 1895 to 2026).
  • Tuesday 29 September 2026: a high of 75.8°F averaged over Marshall County, IA, 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 53.7°F averaged over Marshall County, IA, the warmest 29 September night in the county average since 2024, 16th warmest of 76 (county average from NOAA gridded data, 1951 to 2026).
Days of the month without a value
0

Nearby

Waterloo, IA 46.2 mi, the nearest city with its own station