O'Fallon weather in July (Illinois, United States of America)
Thinking of visiting O'Fallon in July? Check the weather first! This guide provides the necessary weather information for your travel plans.
Temperatures
Typically, July in O'Fallon includes very high temperatures and high rainfall. July is part of summer. Expect daytime highs to reach approximately 31°C, with nighttime lows dipping to around 20°C. This month features high temperatures, marking it as the warmest. Prepare with summer clothes and essentials to enjoy the sun to the fullest.
Precipitation
O'Fallon in July usually receives high rainfall, averaging around 102 mm for the month. The climate data from previous years indicates that there are typically about 10 days days of rain.Average sunshine
The days are predominantly sunny, with an estimated total of around 311 hours of sunshine. These sun-filled days are perfect for spending time outside. Whether it's playing sports, visiting a park, or going for a bike ride.If you prefer dry days with pleasant temperatures, October typically offers the best circumstances. While January, February and December tend to showcase less optimal conditions.
For an in-depth look at the yearly conditions, visit our specialized O'Fallon climate page with graphs.
O'Fallon, monthly averages in July
Min Temperature
20°C
Max Temperature
31°C
Chance of Rain
33%
Precipitation
102 mm
Rainy days
10 days
Humidity
68% *
Sunshine
311 hours *
Percentage Sunshine
68% *
Where to go in the United States of America in July
Find out more about the weather in the United States of America and which places have the best travel conditions in this month.
perfect weather
pleasant
tolerable
unpleasant
poor
So, what should you wear in this month?
It's going to be warm! Consider airy clothing, t-shirts, and other summer clothes. Shorts for men made of cotton or linen are good options for staying cool. However, there's a good chance of rain, so bring a raincoat just in case.What To Do
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Interested in more climate information?
This site provides you with all the information you need about the climate in O'Fallon.
Our site offers climate and forecast data for every country in the world. Are you going to the United States of America? On this website you can find historical weather averages for many cities in the United States of America. Not sure yet where to go? We now have a tool which recommends destinations that suit your ideal travel conditions. Find out where to go with our weather planner.
