Normal weather for Romeoville in July
It's warm in July in Romeoville with an average temperature of 29°C. Temperatures this month range from a low of 25°C to a high of 32°C. At night, you can expect temperatures between 16°C and 21°C.
In July, there is an average of 141 mm of precipitation, spread over 16 days. The wind speed is around 4 Bft, mostly coming from the South.
Romeoville in July |
New York | ||
|---|---|---|---|
 Average Temperature |
29°C | 31°C | |
 High Temp |
32°C | 33°C | |
| Low Temp |
25°C | 29°C | |
 Total Precipitation |
141 mm | 160 mm | |
| Rainy Days |
16 days | 18 days | |
Start of July
The month of July starts in Romeoville with hot temps, averaging around 29°C during the day and nights around 18°C. There are plenty of days with a good chance of precipitation.
With the temperature difference between day and night, it’s smart to wear layers. For the daytime, light clothing like shorts or a dress, and a hat and sunglasses are perfect. For the evening and morning, a shirt, maybe a light sweater, and thin pants are recommended.
Mid July
By mid-July, daytime temps stay steady at around 29°C, with nights around 20°C. During this part of the month, you might see regular precipitation, but there will also be some sunny days.
Since it cools down at night, it’s a good idea to wear layers. For the daytime, light clothing like shorts or a dress, and a hat and sunglasses are perfect. In the evening and morning, a T-shirt, light pants or skirt, and a light jacket are ideal.
End of July
By the end of July, the average daytime temperature in Romeoville is around 30°C, while nighttime temps are about 19°C. A shower might pop up, but overall, the weather will be dry and sunny.
Because temperatures drop in the evening, wearing layers is recommended. For the daytime, light clothing like shorts or a dress, and a hat and sunglasses are perfect. In the evening and morning, a T-shirt, light pants or skirt, and a light jacket are ideal.
Find affordable trips to Romeoville 
UV index
The UV index is a maximum of 9 this month. That's a very high value on the intensity scale of 1 to 11. Unprotected skin can burn within 10-15 minutes.
Is July a good time to visit Romeoville?
Looking for sun? July isn’t a good month to be in Romeoville. The temperature is nice, but there’s too much chance of rain.
Temperature records for Romeoville in July
Check out the climate of Romeoville for all months and discover the best travel time
June
Plan your next vacation
Don’t miss the best vacation deals for Romeoville and see what our partners have for you.
Daily Temperature in July in Romeoville
This chart shows the average daily high and low temperatures in July for Romeoville, in degrees Celsius. The red line represents the highs, and the blue line shows the lows. The days of the month are displayed at the bottom of the chart. The data, based on historical observations, provide the average temperatures for this month.
Daily Precipitation in July in Romeoville
The chart below shows the average daily precipitation in July for Romeoville, measured in millimeters over the past few years. Precipitation is always measured as water, even if it’s snow or hail. The days of the month are listed at the bottom of the chart.
A low average precipitation means that the chance of rain on that day is usually small, while a higher average suggests that it rained more often. But remember, it’s just an average, and every day can be different. Based on historical weather data for July, you can expect about 16 days of precipitation in Romeoville.
Daily UV Index in July in Romeoville
This chart shows the average daily UV index in July in Romeoville, with the UV index ranging from 0 to a maximum of 11. The bottom of the chart shows the days of the month. Based on historical data, this chart provides an idea of the daily UV radiation levels you can expect.
Temperature in July in Romeoville Over the Years
This chart shows the average temperature in July in Romeoville, measured in degrees Celsius, over the past few years.
Total Precipitation in July in Romeoville Over the Years
This chart shows the average precipitation in July in Romeoville, measured in millimeters over the past years. Precipitation is always measured as water, whether it’s snow or hail.
Daily Climate in July for Romeoville
Click on any day in July to get detailed info about the usual weather on that day in Romeoville. Check out the historical temperatures and precipitation over the past 10 years on this day.
Weather experiences in July in Romeoville
Have you been to Romeoville in July?
Share your weather experience in July in Romeoville.
Average Weather in Romeoville by Month
Click on a month below to see detailed weather info for Romeoville. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.
Or check out the climate of Romeoville for all months at once
