July weather forecast
Iowa, USA

July is the zenith of summer in Iowa, where temperatures, humidity, and sunshine reach their peak. Daytime temperatures frequently find themselves in the 85°F (29.4°C) to 95°F (35°C) range, with occasional surges pushing them closer to the 100°F (37.8°C) mark. As for the nights, they retain a warm quality, usually oscillating between 65°F (18.3°C) and 75°F (23.9°C).

The combination of intense heat and substantial humidity can lead to formidable thunderstorms. These storms, while potentially powerful, bring much-needed relief from the relentless summer heat. It's not uncommon for these storms to be accompanied by dramatic displays of lightning and, in some cases, gusty winds.

When contrasted with June, July generally experiences a slight uptick in temperatures. The state basks in the generous sunlight, with the sun often blazing down from clear, cloudless skies. These conditions, while ideal for sun-seekers, demand precautions like hydration and sun protection for those venturing outdoors.

Cities proximate to water bodies, such as Clinton along the Mississippi River, might enjoy a modicum of relief from the extreme heat due to the cooling effects of the water. Still, there's no escaping the fact that July stands as Iowa's hottest month. The sheer intensity of the sun, interspersed with periodic rainstorms, encapsulates the heart of the Iowan summer.

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• Des Moines - July »
  July, marked by an average high-temperature of 83.1°F (28.4°C) and a low-temperature of 65.5°F (18.6°C), is the warmest month in Des Moines, Iowa. Des Moines's July weather reaches an average high of 83.1°F (28.4°C) and an average low of 65.5°F (18.6°C), making it the warmest month.
• Cedar Rapids - July »
  July, having an average high-temperature of 80.8°F (27.1°C) and an average low-temperature of 64.6°F (18.1°C), is the warmest month in Cedar Rapids, Iowa. In Cedar Rapids, during July, the rain falls for 14.8 days and regularly aggregates up to 2.24" (57mm) of precipitation.
• Davenport - July »
  The months with the highest humidity in Davenport are January and July, with an average relative humidity of 83%. January and July, with an average relative humidity of 83%, are most humid months in Davenport, Iowa.
• Sioux City - July »
  July's distinctive weather pattern sets it up as Sioux City's warmest month, with high temperatures averaging at 83.8°F (28.8°C) and low temperatures at 64.9°F (18.3°C). July is when summer hits its peak in Sioux City, supported by the increase in daily sunshine and longer days.
• Iowa City - July »
  January and July, with an average relative humidity of 83%, are the most humid months in Iowa City, Iowa. In Iowa City, July registers the highest temperatures, averaging 81.5°F (27.5°C) at the peak and 64.6°F (18.1°C) at the lowest.
• Waterloo - July »
  In Waterloo during July, the rain falls for 15.3 days and regularly aggregates up to 2.95" (75mm) of precipitation. In Waterloo, July is the month with the highest recorded average temperatures, measuring a high of 80.1°F (26.7°C) and a low of 63.1°F (17.3°C).
• Ames - July »
  July takes the baton of summer from June and runs with it, making Ames, Iowa a warm city with plenty of sun-soaked days. The months with the highest UV index in Ames are June and July, with an average maximum UV index of 6.
• West Des Moines - July »
  In West Des Moines the average sunshine duration in July is 10.4h. How many hours of sunshine does West Des Moines have in July?
• Council Bluffs - July »
  In Council Bluffs in July, it is raining for 13.2 days, with typically 2.05" (52mm) of accumulated precipitation. July has the most sunshine of the year in Council Bluffs, Iowa, with an average of 10.6h of sunshine.
• Dubuque - July »
  In Dubuque, July is the month with the highest recorded average temperatures, measuring a high of 79.7°F (26.5°C) and a low of 62.8°F (17.1°C). The months with the most sunshine in Dubuque are July and August, with an average of 9.7h of sunshine.
• Ankeny - July »
  The warmest time of the year in Ankeny is July, with temperatures averaging a high of 82.2°F (27.9°C) and a low of 65.1°F (18.4°C). In Ankeny in July, it is raining for 14.5 days, with typically 2.13" (54mm) of accumulated precipitation.
• Urbandale - July »
  In Urbandale, the month of July registers the highest temperatures, averaging 82.4°F (28°C) at the peak and 65.1°F (18.4°C) at the lowest. The month with the most sunshine in Urbandale is July, with an average of 10.4h of sunshine.