Hot-summer humid continental climate
Climate Fort Madison - Iowa
Annual high62ºF
Annual low44ºF
Precipitation39.62 inch
| Month | HighºF | LowºF | Precipinch | Snowinch |
|---|---|---|---|---|
| Jan | 34 | 18 | 1.41 | 5 |
| Feb | 38 | 22 | 1.79 | 5 |
| Mar | 50 | 32 | 2.94 | 2 |
| Apr | 63 | 44 | 3.84 | 0 |
| May | 73 | 54 | 4.97 | 0 |
| Jun | 82 | 64 | 4.64 | 0 |
| Jul | 86 | 68 | 4.39 | 0 |
| Aug | 84 | 67 | 3.90 | 0 |
| Sep | 77 | 58 | 3.61 | 0 |
| Oct | 65 | 46 | 2.98 | 0 |
| Nov | 50 | 34 | 2.89 | 1 |
| Dec | 37 | 22 | 2.26 | 5 |
- JanHigh 34ºFLow 18ºFPrecip 1.41 inch
- FebHigh 38ºFLow 22ºFPrecip 1.79 inch
- MarHigh 50ºFLow 32ºFPrecip 2.94 inch
- AprHigh 63ºFLow 44ºFPrecip 3.84 inch
- MayHigh 73ºFLow 54ºFPrecip 4.97 inch
- JunHigh 82ºFLow 64ºFPrecip 4.64 inch
- JulHigh 86ºFLow 68ºFPrecip 4.39 inch
- AugHigh 84ºFLow 67ºFPrecip 3.90 inch
- SepHigh 77ºFLow 58ºFPrecip 3.61 inch
- OctHigh 65ºFLow 46ºFPrecip 2.98 inch
- NovHigh 50ºFLow 34ºFPrecip 2.89 inch
- DecHigh 37ºFLow 22ºFPrecip 2.26 inch
Climate summary
What is the average weather in Fort Madison, Iowa?
Fort Madison experiences a humid continental climate, marked by very large seasonal temperature contrasts. Summers are warm and fairly wet, with the most precipitation arriving during this season. Winters are cold, bringing regular snowfall, and are the driest time of year. Precipitation is spread relatively evenly through the year, with winter moisture often arriving as snow.
Fort Madison weather averages
Annual high62ºF
Annual low44ºF
Precipitation39.62 inch
Snowfall18 inch
Daily normals Fort Madison - Iowa - January
| Day | HighºF | LowºF | Prec/ | Prec/ | Snow/ | Snow/ |
|---|---|---|---|---|---|---|
| Jan 1 | 33.6 | 18.7 | 0.06 | 0.06 | 0.20 | 0.20 |
| Jan 2 | 33.5 | 18.5 | 0.11 | 0.11 | 0.40 | 0.40 |
| Jan 3 | 33.3 | 18.3 | 0.17 | 0.17 | 0.60 | 0.60 |
| Jan 4 | 33.2 | 18.1 | 0.23 | 0.23 | 0.90 | 0.90 |
| Jan 5 | 33.1 | 17.9 | 0.29 | 0.29 | 1.10 | 1.10 |
| Jan 6 | 33.0 | 17.7 | 0.35 | 0.35 | 1.30 | 1.30 |
| Jan 7 | 32.9 | 17.6 | 0.40 | 0.40 | 1.50 | 1.50 |
| Jan 8 | 32.8 | 17.4 | 0.46 | 0.46 | 1.80 | 1.80 |
| Jan 9 | 32.7 | 17.2 | 0.52 | 0.52 | 2.00 | 2.00 |
| Jan 10 | 32.6 | 17.1 | 0.58 | 0.58 | 2.20 | 2.20 |
| Jan 11 | 32.5 | 16.9 | 0.63 | 0.63 | 2.40 | 2.40 |
| Jan 12 | 32.5 | 16.8 | 0.69 | 0.69 | 2.60 | 2.60 |
| Jan 13 | 32.4 | 16.7 | 0.74 | 0.74 | 2.90 | 2.90 |
| Jan 14 | 32.4 | 16.6 | 0.79 | 0.79 | 3.10 | 3.10 |
| Jan 15 | 32.4 | 16.5 | 0.85 | 0.85 | 3.30 | 3.30 |
| Jan 16 | 32.4 | 16.4 | 0.90 | 0.90 | 3.50 | 3.50 |
| Jan 17 | 32.4 | 16.3 | 0.96 | 0.96 | 3.70 | 3.70 |
| Jan 18 | 32.4 | 16.3 | 1.01 | 1.01 | 3.90 | 3.90 |
| Jan 19 | 32.4 | 16.2 | 1.06 | 1.06 | 4.10 | 4.10 |
| Jan 20 | 32.4 | 16.2 | 1.12 | 1.12 | 4.20 | 4.20 |
| Jan 21 | 32.5 | 16.2 | 1.17 | 1.17 | 4.40 | 4.40 |
| Jan 22 | 32.5 | 16.2 | 1.22 | 1.22 | 4.60 | 4.60 |
| Jan 23 | 32.6 | 16.2 | 1.28 | 1.28 | 4.80 | 4.80 |
| Jan 24 | 32.7 | 16.2 | 1.33 | 1.33 | 4.90 | 4.90 |
| Jan 25 | 32.8 | 16.3 | 1.38 | 1.38 | 5.10 | 5.10 |
| Jan 26 | 32.9 | 16.3 | 1.43 | 1.43 | 5.30 | 5.30 |
| Jan 27 | 33.0 | 16.4 | 1.48 | 1.48 | 5.50 | 5.50 |
| Jan 28 | 33.1 | 16.5 | 1.54 | 1.54 | 5.60 | 5.60 |
| Jan 29 | 33.2 | 16.6 | 1.59 | 1.59 | 5.80 | 5.80 |
| Jan 30 | 33.4 | 16.7 | 1.64 | 1.64 | 5.90 | 5.90 |
| Jan 31 | 33.5 | 16.9 | 1.69 | 1.69 | 6.10 | 6.10 |
Precipitation and snow add up through the month (/mo) and the year (/yr)
Weather history Fort Madison - September 2026
| Day | HighºF | LowºF | Precip.inch |
|---|---|---|---|
| Sep 1 | 97.0 | 73.9 | 0.00 |
| Sep 2 | 95.0 | 75.9 | 0.00 |
| Sep 3 | – | – | – |
| Sep 4 | – | – | – |
| Sep 5 | – | – | – |
| Sep 6 | – | – | – |
| Sep 7 | – | – | – |
| Sep 8 | – | – | – |
| Sep 9 | – | – | – |
| Sep 10 | – | – | – |
| Sep 11 | – | – | – |
| Sep 12 | – | – | – |
| Sep 13 | – | – | – |
| Sep 14 | – | – | – |
| Sep 15 | – | – | – |
| Sep 16 | – | – | – |
| Sep 17 | – | – | – |
| Sep 18 | – | – | – |
| Sep 19 | – | – | – |
| Sep 20 | 73.9 | 64.0 | 0.50 |
| Sep 21 | 64.0 | 60.1 | 0.02 |
| Sep 22 | – | – | – |
| Sep 23 | – | – | – |
| Sep 24 | – | – | – |
| Sep 25 | – | – | – |
| Sep 26 | 68.0 | 57.9 | 0.00 |
| Sep 27 | 68.0 | 57.0 | 0.00 |
| Sep 28 | – | – | – |
| Sep 29 | – | – | – |
| Sep 30 | – | – | – |
The data for September 2026 is incomplete: some days or values are missing.
- –No data
- –Not yet observed or received
- TTrace, too small to measure
Observed extremes
- Highest max temperature97.0ºF · Sep 1
- Lowest max temperature64.0ºF · Sep 21
- Highest min temperature75.9ºF · Sep 2
- Lowest min temperature57.0ºF · Sep 27
Geo Fort Madison - Iowa
Location
- Country
- United States
- State
- Iowa
- County
- Lee
- City
- Fort Madison
- Zip Code
- 52627
- Elevation
- 719 ft
- Longitude
- -91.33
- Latitude
- 40.66
- ICAO
- –
- IATA
- –