O'Fallon weather in August (Illinois, United States of America)
Curious about the climate in O'Fallon this August? Here's what you need to know about the weather for the month.
Temperatures
The month of August in O'Fallon typically includes very high temperatures and moderate rainfall. The month of August belongs to the summer season. Daytime temperatures generally settle around 31°C, while nighttime can see a dip to about 20°C.Keep in mind that while these are the average temperatures, there can be days that are even hotter. It's essential to be prepared for such heat. Wearing light, breathable fabrics and protecting yourself from the sun's intensity with hats or shades can make a difference. Hydration is key, so remember to drink plenty of water. Especially if you find yourself outdoors for a longer period.
Precipitation
O'Fallon in August usually receives moderate rainfall, averaging around 89 mm for the month. Looking at the last 30 years, the data shows about 9 days with rain.Average sunshine
The days are predominantly sunny, with an estimated total of around 268 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 your ideal day consists of dry skies and moderate temperatures October generally stands out with 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 August
Min Temperature
20°C
Max Temperature
31°C
Chance of Rain
30%
Precipitation
89 mm
Rainy days
9 days
Humidity
70% *
Sunshine
268 hours *
Percentage Sunshine
64% *
Where to go in the United States of America in August
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.
