Merrillville Weather in August

August in Merrillville brings high temperatures, with highs of 28°C (82°F) and nights dropping to 17°C (63°F). It's the rainiest month of the year, so come prepared with waterproof gear.

Rainfall in Merrillville in August

Being the wettest month, having an umbrella on standby can help you avoid getting caught in the rain. Rain is expected on roughly 11 days, totalling around 146 mm (5.7 in) for the month. Rainfall intensity is on the higher side this month. Expect more substantial showers rather than light, passing rain.

Temperature in Merrillville in August

Merrillville in August gets highs of 28°C (82°F) during the day and drops to 17°C (63°F) at night. August marks the summer season. Overall, the month follows a fairly predictable daily temperature pattern. Nights cool down to 17°C (63°F), so a light jacket or extra layer is useful once the sun goes down. On the plus side, the cooler nights make for comfortable sleeping conditions.

Sunshine in Merrillville in August

With approximately 280 hours of sunshine, the days are filled with clear skies. It makes it a perfect month for being outside.

If you favor pleasant temperatures and minimal rainfall, August is one of the best months to visit Merrillville.

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 Merrillville's climate page.

Merrillville Temperature in August

Min Temperature 17°C (63°F)  

Max Temperature 28°C (82°F)  

Chance of Rain 37%  

Precipitation 146 mm (5.7 in)  

Rainy days 11 days  

Humidity 71% *  

Sunshine 280 hours *  

Percentage Sunshine 66% *  

* Data from: Chicago, the United States of America (72 KM, 45 Miles).

What to Wear in Merrillville 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. And with plenty of sunshine hours, don’t forget sunglasses, sunscreen, and maybe a sun hat.

What To Do in Merrillville 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 Merrillville's climate page.

More climate data for Merrillville

Temperature Rainfall Sunshine Humidity

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