June weather forecastEast Saint Louis, IL
June
Weather in June
June, the first month of the summer in East Saint Louis, is still a warm month, with temperature in the range of an average high of 83.8°F (28.8°C) and an average low of 66.9°F (19.4°C).Temperature
June sees a temperature increase, moving from 74.7°F (23.7°C) in May to a still moderately hot 83.8°F (28.8°C). June's average low-temperature reading settles at a refreshing 66.9°F (19.4°C).Heat index
The heat index for June is calculated to be a tropical 93.2°F (34°C). Adopt enhanced safety measures, heat exhaustion and heat cramps could occur. Continuous activity may induce heatstroke.When considering the heat index, it's pivotal to note it is for shade and mild wind conditions. The heat index has the potential to rise by 15 Fahrenheit (8 Celsius) degrees with direct sunshine exposure.
Note: The heat index, also known as 'apparent temperature' or 'feels like', embodies the combination of air temperature and moisture content to illustrate perceived heat. This effect is personal, influenced by the individual's physical activity and heat sensitivity, shaped by factors including wind, attire, and metabolic variations. Consider the sun's direct rays and their impact; they can potentially increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially vital to children. Children frequently underestimate the importance of resting and drinking fluids. Thirst is a symptom of advanced dehydration - hence the need to hydrate regularly, especially during protracted physical exercises.
Humidity
In June, the average relative humidity is 77%.Rainfall
In East Saint Louis, in June, during 16.1 rainfall days, 4.13" (105mm) of precipitation is typically accumulated. In East Saint Louis, during the entire year, the rain falls for 154.5 days and collects up to 35.51" (902mm) of precipitation.Snowfall
In East Saint Louis, Illinois, snow does not fall in April 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 the month, sunrise is at 5:37 am and sunset at 8:19 pm. On the last day of June, sunrise is at 5:39 am and sunset at 8:29 pm CDT.
Sunshine
June and July, with an average of 10.4h of sunshine, are months with the most sunshine.UV index
The months with the highest UV index are May through August, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high threat to health from exposure to the Sun's UV rays for the average person.Note: In June, the average maximum UV index of 6 translates into the following recommendations:
Inhibit overexposure. Warding off sun damage is of utmost importance. The Sun's UV radiation is most intense from 10 a.m. to 4 p.m. Try to avoid direct sun exposure during these hours. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in June
East Saint Louis, IL
- Average high temperature in June: 83.8°F
The warmest month (with the highest average high temperature) is July (86.4°F).
The month with the lowest average high temperature is January (37.8°F).
- Average low temperature in June: 66.9°F
The month with the highest average low temperature is July (68.5°F).
The coldest month (with the lowest average low temperature) is January (24.4°F).
Average pressure in June
East Saint Louis, 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
East Saint Louis, IL
- Average wind speed in June: 6.5mph
The windiest month (with the highest average wind speed) is January (9.3mph).
The calmest month (with the lowest average wind speed) is July (5.5mph).
Average humidity in June
East Saint Louis, IL
- Average humidity in June: 77%
The months with the highest relative humidity are May and July (78%).
The month with the lowest relative humidity is October (71%).
Average rainfall in June
East Saint Louis, IL
- Average rainfall in June: 4.13"
The wettest month (with the highest rainfall) is May (4.25").
The driest month (with the least rainfall) is February (1.89").
Average rainfall days in June
East Saint Louis, IL
- Average rainfall days in June: 16.1 days
The months with the highest number of rainy days are May and July (17.5 days).
The month with the least rainy days is January (8 days).
Average snowfall in June
East Saint Louis, IL
- Average snowfall in June: 0"
The month with the highest snowfall is February (2.64").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in June
East Saint Louis, IL
- Average snowfall days in June: 0 days
The month with the highest number of snowfall days is January (7.3 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
East Saint Louis, IL
- Average daylight in June: 14h and 48min
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 24min
The months with the most sunshine are June and July (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 36min).
Average sunshine days in June
East Saint Louis, IL
- Average sunshine days in June: 11.4 days
The month with the most sunshine days is December (18.8 days).
The month with the least sunshine days is May (11.2 days).
Average UV index in June
East Saint Louis, 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 and December (UV index 2).
Average cloud cover in June
East Saint Louis, IL
- Average cloud cover in June: 28
The month with the most cloud cover is January (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 27).
Average visibility in June
East Saint Louis, 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).





