June weather forecast
Eureka, IL

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Weather in June

The first month of the summer, June, is a moderately hot month in Eureka, Illinois, with temperature in the range of an average high of 79.5°F (26.4°C) and an average low of 63°F (17.2°C).

Temperature

The start of June brings a subtle rise in the average high-temperature, moving from a pleasant 71.4°F (21.9°C) in May to a warm 79.5°F (26.4°C). During the month of June, the nighttime temperature falls to an average of 63°F (17.2°C).

Humidity

The average relative humidity in June is 81%.

Rainfall

In Eureka, Illinois, in June, during 17.1 rainfall days, 2.64" (67mm) of precipitation is typically accumulated. In Eureka, during the entire year, the rain falls for 147.1 days and collects up to 24.17" (614mm) of precipitation.

Snowfall

In Eureka, snow does not fall in May through September.

Daylight

The month with the longest days in Eureka is June, with an average of 15h and 0min of daylight.
On the first day of June, sunrise is at 5:27 am and sunset at 8:22 pm. On the last day of the month, sunrise is at 5:29 am and sunset at 8:32 pm CDT.

Sunshine

The month with the most sunshine in Eureka, Illinois, is June, with an average of 10.1h of sunshine.

UV index

June and July, with an average maximum UV index of 6, are months with the highest UV index in Eureka. A UV Index of 6 to 7 symbolizes a high health vulnerability from unsafe exposure to UV radiation for average individuals.
Note: The maximum daily UV index of 6 in June converts into the following recommendations:
Incorporate safeguards and honour sun safety principles. Protection from skin and eye damage is obligatory. Make an effort to avoid direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation, and note that objects like parasols or canopies might not offer full sun protection. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays.
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the average June temperature in Eureka?

The average high-temperature, in June, in Eureka, is 79.5°F (26.4°C), while the average low-temperature is 63°F (17.2°C).

What is the average humidity in June in Eureka?

In Eureka, the average relative humidity in June is 81%.

How much does it rain in Eureka in June?

In Eureka, in June, it is raining for 17.1 days, with typically 2.64" (67mm) of accumulated precipitation.

When it does not snow in Eureka?

In Eureka, snow does not fall in May through September.

When are the longest days in Eureka?

June has the longest days of the year in Eureka, with an average of 15h and 0min of daylight.

How many hours of daylight does Eureka have in June?

The average day length in June in Eureka is 15h and 3min.

When is the sunrise / sunset in June in Eureka?

In June, on the first day of the month, sunrise is at 5:27 am and sunset at 8:22 pm. On the last day of the month, sunrise is at 5:29 am and sunset at 8:32 pm CDT.

What month has the most sunshine in Eureka?

June has the most sunshine of the year in Eureka, with an average of 10.1h of sunshine.

How long on average sun shines in June in Eureka?

In June, the average sunshine duration in Eureka, Illinois, is 10.1h.

What are the months with the highest UV index in Eureka?

June and July, with an average maximum UV index of 6, are months with the highest UV index.

What is the UV index reading in June in Eureka?

In June, the average daily maximum UV index is 6. A UV Index value of 6 to 7 symbolizes a high hazard to health from exposure to the Sun's 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
Eureka, IL

Average temperature in June - Eureka, IL
  • Average high temperature in June: 79.5°F

The warmest month (with the highest average high temperature) is July (81.1°F).
The month with the lowest average high temperature is January (30.4°F).

  • Average low temperature in June: 63°F

The month with the highest average low temperature is July (64.9°F).
The coldest month (with the lowest average low temperature) is January (18.5°F).

Average pressure in June
Eureka, IL

Average pressure in June - Eureka, IL
  • Average pressure in June: 29.91"Hg

The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).

Average wind speed in June
Eureka, IL

Average wind speed in June - Eureka, IL
  • Average wind speed in June: 7.9mph

The windiest month (with the highest average wind speed) is April (10.7mph).
The calmest month (with the lowest average wind speed) is August (6.5mph).

Average humidity in June
Eureka, IL

Average humidity in June - Eureka, IL
  • Average humidity in June: 81%

The month with the highest relative humidity is July (85%).
The month with the lowest relative humidity is October (72%).

Average rainfall in June
Eureka, IL

Average rainfall in June - Eureka, IL
  • Average rainfall in June: 2.64"

The wettest month (with the highest rainfall) is May (3.11").
The driest month (with the least rainfall) is December (1.22").

Average rainfall days in June
Eureka, IL

Average rainfall days in June - Eureka, IL
  • Average rainfall days in June: 17.1 days

The month with the highest number of rainy days is May (17.9 days).
The month with the least rainy days is January (5.8 days).

Average snowfall in June
Eureka, IL

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

The months with the highest snowfall are January and February (2.8").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in June
Eureka, IL

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

The month with the highest number of snowfall days is January (11 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
Eureka, IL

Average daylight in June / Average sunshine in June - Eureka, IL
  • Average daylight in June: 15h and 0min

The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 18min).

  • Average sunshine in June: 10h and 1min

The month with the most sunshine is June (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).

Average sunshine days in June
Eureka, IL

Average sunshine days in June - Eureka, IL
  • Average sunshine days in June: 10.3 days

The month with the most sunshine days is November (18.4 days).
The month with the least sunshine days is July (9 days).

Average UV index in June
Eureka, IL

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

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

Average cloud cover in June
Eureka, IL

Average cloud cover in June - Eureka, IL
  • Average cloud cover in June: 32

The month with the most cloud cover is January (Cloud cover 58).
The month with the least cloud cover is September (Cloud cover 30).

Average visibility in June
Eureka, IL

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

The months with the highest visibility are January, February, March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are July and August (5mi).

Eureka, Illinois, USA

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