Prospect Heights Weather in August

August in Prospect Heights averages 28°C (82°F) during the day and 18°C (64°F) at night. Quite a bit of rainfall is typical this month, with around 119 mm (4.7 in) on average. An umbrella is a good idea.

Rainfall in Prospect Heights in August

Based on our climate data of the past 30 years, about 11 days of rain are anticipated, with 119 mm (4.7 in) on average. When showers do arrive, they tend to be on the heavier side. Worth being prepared even if rain days are not that numerous.

Temperature in Prospect Heights in August

August in Prospect Heights sees highs of 28°C (82°F) and lows of 18°C (64°F) overnight. During August, you'll experience the summer season. Overall, the month follows a fairly predictable daily temperature pattern. At 18°C (64°F) overnight, it can feel quite a bit cooler after dark. Worth packing something warmer for evenings, but the cooler temperatures are ideal for sleeping.

Sunshine in Prospect Heights in August

There are approximately 280 hours of sunshine this month, resulting in mostly clear days.

Wind Speed in Prospect Heights in August

August 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.

Should you favor a climate that's both dry and comfortably warm, September typically offers the most agreeable circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.

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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 Prospect Heights's climate page.

Prospect Heights Temperature in August

Min Temperature 18°C (64°F)  

Max Temperature 28°C (82°F)  

Chance of Rain 37%  

Precipitation 119 mm (4.7 in)  

Rainy days 11 days  

Humidity 71% *  

Windspeed 4 m/s (8 knots) *  

Sunshine 280 hours *  

Percentage Sunshine 66% *  

* Data from: Chicago, the United States of America (12 KM, 7 Miles).

What to Wear in Prospect Heights in August

Warm temperatures in August make for comfortable sightseeing weather. Pack breathable fabrics like cotton shirts, knee-length shorts or skirts, and comfortable walking shoes. A thin long sleeve for indoor spaces is handy. Prepare for significant rainfall with proper waterproof clothing and shoes. Don't forget sun protection, sunglasses, sunscreen, and a hat. These are all good ideas with this much sunshine.

What To Do in Prospect Heights in August

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 Prospect Heights's climate page.

More climate data for Prospect Heights

Temperature Rainfall Sunshine Humidity Wind Speed

See the full Prospect Heights climate overview or explore weather in the United States of America.