June weather forecast
Forreston, IL

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Weather in June

The first month of the summer, June, is a moderately hot month in Forreston, Illinois, with temperature in the range of an average low of 60.1°F (15.6°C) and an average high of 77.2°F (25.1°C).

Temperature

As May transitions into June, Forreston notices a gentle rise in the average high-temperature, transitioning from a pleasant 68.5°F (20.3°C) to a warm 77.2°F (25.1°C). Forreston, during the month of June, experiences an average low-temperature of 60.1°F (15.6°C).

Humidity

In Forreston, the average relative humidity in June is 82%.

Rainfall

The month with the most rainfall is June, when the rain falls for 17.7 days and typically aggregates up to 3.39" (86mm) of precipitation.

Snowfall

May through September are months without snowfall.

Daylight

The month with the longest days is June, with an average of 15h and 12min of daylight.
On the first day of June, sunrise is at 5:24 am and sunset at 8:28 pm. On the last day of the month, sunrise is at 5:26 am and sunset at 8:38 pm CDT.

Sunshine

The average sunshine in June is 9.5h.

UV index

May through August, with an average maximum UV index of 5, are months with the highest UV index. A UV Index value of 3 to 5 symbolizes a medium health hazard from unprotected exposure to Sun's UV rays for the average person.
Note: The maximum UV index of 5 during June leads to these instructions:
Be vigilant - Suggestions to stave off sun damage are provided. To guard against the harmful effects of the Sun, minimize exposure during midday. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection.
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 Forreston?

In June, in Forreston, the average high-temperature is 77.2°F (25.1°C), and the average low-temperature is 60.1°F (15.6°C).

What is the average humidity in June in Forreston?

The average relative humidity in June in Forreston is 82%.

What is the rainiest month in Forreston?

June is the month with the most rainfall in Forreston. Rain falls for 17.7 days and accumulates 3.39" (86mm) of precipitation.

How much does it rain in Forreston in June?

In Forreston, in June, during 17.7 rainfall days, 3.39" (86mm) of precipitation is typically accumulated.

When it does not snow in Forreston?

May through September are months without snowfall in Forreston, Illinois.

When are the longest days in Forreston?

With an average of 15h and 12min of daylight, June has the longest days of the year in Forreston, Illinois.

What is the average length of the day in June in Forreston?

In June, the average day length in Forreston, Illinois, is 15h and 12min.

When are sunrise and sunset in June in Forreston?

In June, on the first day of the month, sunrise is at 5:24 am and sunset at 8:28 pm. On the last day of the month, in Forreston, sunrise is at 5:26 am and sunset at 8:38 pm CDT.

How many hours of sunshine does Forreston have in June?

In Forreston, the average sunshine duration in June is 9.5h.

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

The months with the highest UV index in Forreston, Illinois, are May through August, with an average maximum UV index of 5.

How high is the UV index in June in Forreston?

In Forreston, Illinois, the average daily maximum UV index in June is 5. A UV Index estimate of 3 to 5 represents a medium health risk 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
Forreston, IL

Average temperature in June - Forreston, IL
  • Average high temperature in June: 77.2°F

The warmest month (with the highest average high temperature) is July (79.7°F).
The month with the lowest average high temperature is January (26.1°F).

  • Average low temperature in June: 60.1°F

The month with the highest average low temperature is July (63.5°F).
The coldest month (with the lowest average low temperature) is January (13.5°F).

Average pressure in June
Forreston, IL

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

The month with the highest atmospheric pressure is January (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).

Average wind speed in June
Forreston, IL

Average wind speed in June - Forreston, IL
  • Average wind speed in June: 7.6mph

The windiest month (with the highest average wind speed) is April (10.3mph).
The calmest month (with the lowest average wind speed) is August (6.5mph).

Average humidity in June
Forreston, IL

Average humidity in June - Forreston, IL
  • Average humidity in June: 82%

The month with the highest relative humidity is January (87%).
The months with the lowest relative humidity are April and October (75%).

Average rainfall in June
Forreston, IL

Average rainfall in June - Forreston, IL
  • Average rainfall in June: 3.39"

The wettest month (with the highest rainfall) is June (3.39").
The driest months (with the least rainfall) are February and December (1.06").

Average rainfall days in June
Forreston, IL

Average rainfall days in June - Forreston, IL
  • Average rainfall days in June: 17.7 days

The month with the highest number of rainy days is May (18.3 days).
The month with the least rainy days is February (5 days).

Average snowfall in June
Forreston, IL

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

The month with the highest snowfall is January (3.54").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in June
Forreston, IL

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

The month with the highest number of snowfall days is January (12.4 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
Forreston, IL

Average daylight in June / Average sunshine in June - Forreston, IL
  • Average daylight in June: 15h and 1min

The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).

  • Average sunshine in June: 9h and 3min

The month with the most sunshine is July (Average sunshine: 9h and 42min).
The month with the least sunshine is January (Average sunshine: 3h and 36min).

Average sunshine days in June
Forreston, IL

Average sunshine days in June - Forreston, IL
  • Average sunshine days in June: 9.7 days

The month with the most sunshine days is November (17.2 days).
The month with the least sunshine days is June (9.7 days).

Average UV index in June
Forreston, IL

Average UV index in June - Forreston, IL
  • Average UV index in June: 5

The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January and December (UV index 1).

Average cloud cover in June
Forreston, IL

Average cloud cover in June - Forreston, IL
  • Average cloud cover in June: 37

The month with the most cloud cover is January (Cloud cover 62).
The month with the least cloud cover is September (Cloud cover 33).

Average visibility in June
Forreston, IL

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

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

Forreston, Illinois, USA

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