Fort Madison Weather in May
Average highs run from 67°F on May 1 to 77°F on May 31, and lows from 48°F to 59°F. Normal precipitation for the month is 5.11 in over about 13 wet days.
May day by day
The normal high and low for each date, and the record, in °F.
- Normal low
- Normal high
- Record high
- Record low
May at a glance
- Average high
- 72°F
- Average low
- 54°F
- Precipitation
- 5.11 in
- Record high
- 95°FMay 10, 1895
- Record low
- 22°FMay 11, 1966
- Chance of a freeze
- 4%
- Daylight
- 13 h 57 min to 14 h 52 min
- Cloud cover
- 64%
- Humidity
- 76%
- Dew point
- 54°F
- Wind
- 10.3 mph
Every day of the month
A wet day has at least 0.01 inch of precipitation; snow means at least 0.1 inch of snowfall.
| Date | Normal high | Normal low | Record high | Record low | Chance wet | Chance of snow |
|---|---|---|---|---|---|---|
| May 1 | 67°F | 48°F | 89°F 1965 | 31°F 1909 | 42% | 0% |
| May 2 | 68°F | 49°F | 84°F 1968 | 30°F 1976 | 42% | 0% |
| May 3 | 68°F | 49°F | 86°F 1959 | 31°F 2005 | 42% | 0% |
| May 4 | 68°F | 50°F | 86°F 1959 | 33°F 2005 | 42% | 0% |
| May 5 | 69°F | 50°F | 88°F 1959 | 36°F 1957 | 42% | 0% |
| May 6 | 69°F | 50°F | 88°F 1959 | 33°F 1989 | 42% | 0% |
| May 7 | 69°F | 51°F | 86°F 2023 | 34°F 1958 | 42% | 0% |
| May 8 | 70°F | 51°F | 86°F 1895 | 30°F 1980 | 42% | 0% |
| May 9 | 70°F | 51°F | 90°F 1895 | 29°F 1980 | 41% | 0% |
| May 10 | 70°F | 52°F | 95°F 1895 | 36°F 1966 | 41% | 0% |
| May 11 | 71°F | 52°F | 91°F 2007 | 22°F 1966 | 41% | 0% |
| May 12 | 71°F | 52°F | 90°F 1956 | 29°F 1966 | 41% | 0% |
| May 13 | 71°F | 53°F | 91°F 1956 | 36°F 1971 | 41% | 0% |
| May 14 | 72°F | 53°F | 89°F 1894 | 32°F 1971 | 41% | 0% |
| May 15 | 72°F | 54°F | 89°F 1894 | 38°F 1959 | 41% | 0% |
| May 16 | 72°F | 54°F | 87°F 1962 | 35°F 1968 | 40% | 0% |
| May 17 | 73°F | 54°F | 89°F 1894 | 37°F 2014 | 40% | 0% |
| May 18 | 73°F | 55°F | 90°F 1964 | 40°F 2002 | 40% | 0% |
| May 19 | 73°F | 55°F | 90°F 1962 | 39°F 2015 | 40% | 0% |
| May 20 | 74°F | 55°F | 90°F 1893 | 38°F 1981 | 40% | 0% |
| May 21 | 74°F | 56°F | 88°F 1975 | 37°F 2002 | 39% | 0% |
| May 22 | 74°F | 56°F | 90°F 1962 | 37°F 1963 | 39% | 0% |
| May 23 | 75°F | 56°F | 91°F 1962 | 34°F 1963 | 39% | 0% |
| May 24 | 75°F | 57°F | 91°F 2010 | 41°F 1979 | 39% | 0% |
| May 25 | 75°F | 57°F | 90°F 1953 | 39°F 1979 | 39% | 0% |
| May 26 | 76°F | 57°F | 91°F 2018 | 38°F 1961 | 39% | 0% |
| May 27 | 76°F | 58°F | 95°F 2018 | 39°F 1961 | 39% | 0% |
| May 28 | 76°F | 58°F | 93°F 2018 | 42°F 1971 | 38% | 0% |
| May 29 | 77°F | 58°F | 90°F 1953 | 38°F 1984 | 38% | 0% |
| May 30 | 77°F | 59°F | 93°F 1953 | 40°F 1965 | 38% | 0% |
| May 31 | 77°F | 59°F | 92°F 2002 | 42°F 1966 | 38% | 0% |
Chance of rain
- Chance of a wet day
- Chance of snowfall
Sunrise and sunset
Times for 2026, local time (CDT).
- May 1
- sunrise 6:04 AM, sunset 8:01 PM
- May 31
- sunrise 5:37 AM, sunset 8:29 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00133007 (Ft Madison), public domain. Records: NOAA GHCN-Daily, station USC00133007, every year on file, quality-flagged values removed. Cloud, humidity, wind and sunshine: NASA POWER (MERRA-2, CERES and GEWEX SRB), 1991-2020. The data was obtained from the National Aeronautics and Space Administration (NASA) Langley Research Center's Prediction Of Worldwide Energy Resources (POWER) project funded through the NASA Earth Science Division: POWER Daily API v2, accessed 2026-09-24. Sun and moon: computed with the NOAA solar equations and Meeus.