June weather forecast
Edwardsville, IL

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Weather in June

June, the first month of the summer in Edwardsville, is still a warm month, with temperature in the range of an average high of 83.1°F (28.4°C) and an average low of 66.2°F (19°C).

Temperature

As May gives way to June, the average high-temperature displays an increase, moving from 74.1°F (23.4°C) to a still warm 83.1°F (28.4°C). Nighttime temperatures consistently average a refreshing 66.2°F (19°C) during June.

Heat index

June's heat index is appraised at a tropical 91.4°F (33°C). Implement additional safety measures to avoid heat cramps and heat exhaustion. Persistent activity might trigger heatstroke.
Heat index's context suggests values are appropriate for shady areas and slight breezes. Uninterrupted exposure to the sun may boost the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', quantifies the warmth felt when relative humidity is considered. The impact of weather is individual, with diverse individuals experiencing it differently due to variations in body mass, height, and activity levels. Keep it in mind, direct sunlight can augment the heat you experience, possibly pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly meaningful for babies and toddlers. Kids generally face higher risks than adults as they sweat less. Along with their large skin surface compared to their small bodies and higher heat production due to their activities, their vulnerability is increased.

Humidity

In June, the average relative humidity in Edwardsville is 78%.

Rainfall

In Edwardsville, during June, the rain falls for 15.1 days and regularly aggregates up to 2.76" (70mm) of precipitation. In Edwardsville, during the entire year, the rain falls for 138 days and collects up to 23.9" (607mm) of precipitation.

Snowfall

In Edwardsville, snow does not fall in May through October.

Daylight

June has the longest days of the year, with an average of 14h and 48min of daylight.
On the first day of June, sunrise is at 5:36 am and sunset at 8:19 pm. On the last day of the month, sunrise is at 5:38 am and sunset at 8:28 pm CDT.

Sunshine

With an average of 10.4h of sunshine, June has the most sunshine of the year in Edwardsville.

UV index

May through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index value of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV rays for ordinary individuals.
Note: The UV index of 6 during June leads to these advisories:
Shield from overexposure. Defense against sun-related harm is required. Between 10 a.m. and 4 p.m., UV radiation is strongest. Make an effort to avoid direct sunlight during this time, remembering that shade structures may not provide full sun protection. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes.
Updated: Aug 28, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot is June?

During June, Edwardsville experiences an average high-temperature of 83.1°F (28.4°C) and a low-temperature of 66.2°F (19°C). In June, the average heat index (a.k.a. 'feels like', 'real feel'), which calculates the temperature value influenced by the moisture in the air, is appraised at 91.4°F (33°C).

What is the average humidity in June?

In Edwardsville, the average relative humidity in June is 78%.

How many days does it rain in June?

In Edwardsville, in June, during 15.1 rainfall days, 2.76" (70mm) of precipitation is typically accumulated.

When it does not snow?

May through October are months without snowfall.

When are the longest days?

The month with the longest days is June, with an average of 14h and 48min of daylight.

What is the average length of the day in June?

In June, the average day length is 14h and 50min.

What time are sunrise and sunset in June?

On the first day of June, sunrise is at 5:36 am and sunset at 8:19 pm. On the last day of the month, sunrise is at 5:38 am and sunset at 8:28 pm CDT.

What month has the most sunshine?

June has the most sunshine of the year, with an average of 10.4h of sunshine.

How long on average sun shines in June?

The average sunshine duration in June is 10.4h.

What is the month with the highest UV index?

The months with the highest UV index are May through August, with an average maximum UV index of 6.

What is the UV index reading in June?

In June, the average daily maximum UV index is 6. A UV Index value of 6 to 7 symbolizes a high health threat from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in June
Edwardsville, IL

Average temperature in June - Edwardsville, IL
  • Average high temperature in June: 83.1°F

The warmest month (with the highest average high temperature) is July (85.3°F).
The month with the lowest average high temperature is January (36.1°F).

  • Average low temperature in June: 66.2°F

The month with the highest average low temperature is July (67.6°F).
The coldest month (with the lowest average low temperature) is January (23.4°F).

Average pressure in June
Edwardsville, IL

Average pressure in June - Edwardsville, IL
  • Average pressure in June: 29.92"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

Average wind speed in June
Edwardsville, IL

Average wind speed in June - Edwardsville, IL
  • Average wind speed in June: 6.6mph

The windiest months (with the highest average wind speed) are January and February (9.6mph).
The calmest month (with the lowest average wind speed) is July (5.7mph).

Average humidity in June
Edwardsville, IL

Average humidity in June - Edwardsville, IL
  • Average humidity in June: 78%

The month with the highest relative humidity is July (80%).
The month with the lowest relative humidity is October (71%).

Average rainfall in June
Edwardsville, IL

Average rainfall in June - Edwardsville, IL
  • Average rainfall in June: 2.76"

The wettest month (with the highest rainfall) is May (3.07").
The driest month (with the least rainfall) is February (1.14").

Average rainfall days in June
Edwardsville, IL

Average rainfall days in June - Edwardsville, IL
  • Average rainfall days in June: 15.1 days

The month with the highest number of rainy days is May (16.6 days).
The month with the least rainy days is January (5.6 days).

Average snowfall in June
Edwardsville, IL

Average snowfall in June - Edwardsville, IL
  • Average snowfall in June: 0"

The month with the highest snowfall is February (1.61").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in June
Edwardsville, IL

Average snowfall days in June - Edwardsville, IL
  • Average snowfall days in June: 0 days

The month with the highest number of snowfall days is January (6 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

Average daylight in June /
Average sunshine in June
Edwardsville, IL

Average daylight in June / Average sunshine in June - Edwardsville, IL
  • Average daylight in June: 14h and 5min

The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).

  • Average sunshine in June: 10h and 2min

The month with the most sunshine is June (Average sunshine: 10h and 24min).
The months with the least sunshine are January and February (Average sunshine: 4h and 30min).

Average sunshine days in June
Edwardsville, IL

Average sunshine days in June - Edwardsville, IL
  • Average sunshine days in June: 12.5 days

The month with the most sunshine days is December (20.4 days).
The month with the least sunshine days is July (12.3 days).

Average UV index in June
Edwardsville, IL

Average UV index in June - Edwardsville, IL
  • Average UV index in June: 6

The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).

Average cloud cover in June
Edwardsville, IL

Average cloud cover in June - Edwardsville, IL
  • Average cloud cover in June: 29

The month with the most cloud cover is January (Cloud cover 51).
The months with the least cloud cover are June, July and August (Cloud cover 29).

Average visibility in June
Edwardsville, IL

Average visibility in June - Edwardsville, IL
  • Average visibility in June: 6mi

The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).

Edwardsville, Illinois, USA

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