Historical weather data, all-time temperature records, and monthly climate averages for Fort Madison, IA. Explore typical weather conditions by week for trip planning, and see how today compares to the historical record.
April 4 in Fort Madison splits the difference between winter and spring — 93 years of data put the average high at 57° and the low at 37°. The date has seen some wild swings though, from a balmy 85° in 1981 down to a bitter 13° in 1975. There's a 37% chance of rain today, but snow is essentially off the table.
Fort Madison's weather has real teeth on both ends — the thermometer has hit 107° in July and plunged to -23° in January, a range of 130 degrees over its recorded history. A single August day in 1959 dropped 8.5 inches of rain, and a February 2011 snowstorm buried the city under 18 inches in one shot.
Summer is the main event here, with highs averaging 86-87° in mid-July and a stretch of 80s+ running from June through August. Winter is legitimately cold, with January and February highs hovering around freezing. If you're watching for rain, pack an umbrella in late June — it's the wettest week of the year, averaging over an inch of precipitation.