Collinsville
Weather by month
Current –

Collinsville Weather in July

Collinsville in July averages 31°C (88°F) during the day and 21°C (70°F) at night. Keep in mind that quite a bit of rainfall is expected this month.

Rainfall in Collinsville in July

Historically, approximately 11 days this month are expected to have rain, averaging 105 mm (4.1 in). When it rains this month, it tends to come down fairly heavily. Showers can be substantial even if they don't last all day.

Temperature in Collinsville in July

July in Collinsville brings typical temperatures with highs around 31°C (88°F) and lows of 21°C (70°F). Mornings and evenings are often more comfortable than the peak afternoon hours. At 21°C (70°F) overnight, nights are warm enough to sit outside comfortably in light clothing. Remember, these are typical temperatures, and certain days could be even hotter. Ensure you wear appropriate clothing to handle the warmth.

Sunshine in Collinsville in July

The month enjoys around 311 hours of sunshine, creating mostly sunny days with good weather conditions.

Should you favor a climate that's both dry and comfortably warm, September and October typically offer 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.

Collinsville Temperature in July

Min Temperature
21°C (70°F)
Max Temperature
31°C (88°F)
Chance of Rain
37%
Precipitation
105 mm (4.1 in)
Rainy days
11 days
Humidity
68% *
Sunshine
311 hours *
Percentage Sunshine
68% *
* Data from: St. Louis, the United States of America (19 KM, 11 Miles).

Collinsville Weather by Month

Pick a month to see the average temperature, rainfall and sunshine in Collinsville - and find the best time to visit.

Best Places in the United States of America in July

Find out more about the weather in the United States of America and which places have the best travel conditions in this month. See all of the United States of America in July →

perfect weather
pleasant
tolerable
unpleasant
poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).

What to Wear in Collinsville in July

Warm but pleasant conditions in Collinsville 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. And with plenty of sunshine hours, don’t forget sunglasses, sunscreen, and maybe a sun hat.

What To Do in Collinsville 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

Collinsville 3-Day Forecast

Popular in July

Where to go in July - average daytime high across popular destinations.

Bucket list

Need travel inspiration? Check out our bucket list articles and be inspired.