Oak Brook Weather in July

July in Oak Brook brings high temperatures, with highs of 29°C (84°F) and nights dropping to 18°C (64°F). Rainfall is on the higher side this month, averaging around 109 mm (4.3 in), so keep a rain jacket handy.

Rainfall in Oak Brook in July

You can expect rain on around 11 days based on historical patterns, with 109 mm (4.3 in) average for the month. Individual showers can be quite heavy this month. A proper umbrella or rain jacket is worth having.

Temperature in Oak Brook in July

Oak Brook in July gets highs of 29°C (84°F) during the day and drops to 18°C (64°F) at night. This kind of day-to-night contrast is typical for this time of year. With lows of 18°C (64°F), nights are cool. If you're out after dark, an extra layer will keep you comfortable. The cooler air at night is also great for getting a good rest. This is typically the warmest month of the year, so light summer clothing is a good idea.

Sunshine in Oak Brook in July

Enjoy a sunny month with about 319 hours of sunshine, the clear skies make Oak Brook even more beautiful.

Wind Speed in Oak Brook in July

July sees wind speeds averaging 4 m/s (8 knots). You'll experience variable conditions with moderate winds that create small waves on water and keep branches moving. Conditions range from light winds to moderate breezes throughout the month.

Our weather planner can help you find worldwide destinations with pleasant weather during this period. September typically offers the best weather for Oak Brook.

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For a detailed overview over the year and the best time to visit the United States of America, check out our Oak Brook's climate page.

Oak Brook Temperature in July

Min Temperature 18°C (64°F)  

Max Temperature 29°C (84°F)  

Chance of Rain 36%  

Precipitation 109 mm (4.3 in)  

Rainy days 11 days  

Humidity 68% *  

Windspeed 4 m/s (8 knots) *  

Sunshine 319 hours *  

Percentage Sunshine 69% *  

* Data from: Chicago, the United States of America (16 KM, 10 Miles).

What to Wear in Oak Brook in July

Warm but pleasant conditions in Oak Brook in July. Focus on lightweight, maybe with natural fabrics, cotton blend shirts, comfortable shorts, and breathable footwear. A light cover-up for sun protection is smart too. Expect heavy rainfall, so bring good rain protection and waterproof bags. Don't forget sun protection, sunglasses, sunscreen, and a hat. These are all good ideas with this much sunshine.

What To Do in Oak Brook in July

We rated the following activities from 1 (least suitable) to 10 (best) to do.

Swimming

9/10

Cycling

7/10

Walking

7/10

Camping

6/10

Outdoor sports

7/10

Select a Month

Check the conditions for any month of the year.

• January
• February
• March
• April

• May
• June
• July
• August

• September
• October
• November
• December

For a detailed overview over the year and the best time to visit the United States of America, check out our Oak Brook's climate page.

More climate data for Oak Brook

Temperature Rainfall Sunshine Humidity Wind Speed

See the full Oak Brook climate overview or explore weather in the United States of America.