Arlington Heights
Illinois, USA
Long-term weather forecast
Long-term weather forecast

Monthly weather forecast and climate
Arlington Heights, IL

January, like December, is a freezing cold winter month in Arlington Heights, Illinois, with average temperature ranging between min 12.9°F (-10.6°C) and max 28°F (-2.2°C). January is the coldest month, with an average high-temperature of 28°F (-2.2°C) and an average low-temperature of 12.9°F (-10.6°C). Weather in January »
February, the last month of the winter, in Arlington Heights, is a wintry month, with average temperature varying between 33.1°F (0.6°C) and 17.1°F (-8.3°C). In February, the average high-temperature is almost the same as in January - a cold 33.1°F (0.6°C). Weather in February »

The first month of the spring, March, is a chilly month in Arlington Heights, Illinois, with temperature in the range of an average low of 26.1°F (-3.3°C) and an average high of 44.1°F (6.7°C). In Arlington Heights, the average high-temperature rises, from a wintry 33.1°F (0.6°C) in February, to a frosty 44.1°F (6.7°C). Weather in March »

April is a moderate spring month in Arlington Heights, Illinois, with average temperature ranging between max 57°F (13.9°C) and min 37.9°F (3.3°C). In April, the average high-temperature increases, from a frosty 44.1°F (6.7°C) in March, to a mild 57°F (13.9°C). Weather in April »

May, the last month of the spring, in Arlington Heights, is an agreeable month, with temperature in the range of an average high of 68°F (20°C) and an average low of 48°F (8.9°C). In May, the average high-temperature increases, from a mild 57°F (13.9°C) in April, to a pleasant 68°F (20°C). Weather in May »

The first month of the summer, June, is a warm month in Arlington Heights, Illinois, with average temperature varying between 57.9°F (14.4°C) and 78.1°F (25.6°C). In Arlington Heights, the average high-temperature in June increases, from an agreeable 68°F (20°C) in May, to a warm 78.1°F (25.6°C). Weather in June »

July, like June, in Arlington Heights, Illinois, is another warm summer month, with temperature in the range of an average high of 82°F (27.8°C) and an average low of 63°F (17.2°C). The warmest month is July, with an average high-temperature of 82°F (27.8°C) and an average low-temperature of 63°F (17.2°C). Weather in July »

The last month of the summer, August, is also a moderately hot month in Arlington Heights, Illinois, with average temperature fluctuating between 61°F (16.1°C) and 79°F (26.1°C). In Arlington Heights, the average high-temperature in August is essentially the same as in July - a still moderately hot 79°F (26.1°C). Weather in August »

The first month of the autumn, September, is still a pleasant month in Arlington Heights, Illinois, with average temperature ranging between min 52°F (11.1°C) and max 72°F (22.2°C). In Arlington Heights, the average high-temperature in September marginally drops, from a warm 79°F (26.1°C) in August, to a pleasant 72°F (22.2°C). Weather in September »

October, the same as September, in Arlington Heights, Illinois, is another mild autumn month, with average temperature fluctuating between 41°F (5°C) and 60.1°F (15.6°C). In Arlington Heights, the average high-temperature in October drops, from an agreeable 72°F (22.2°C) in September, to a moderate 60.1°F (15.6°C). Weather in October »

November, the last month of the autumn, in Arlington Heights, is also a frosty month, with average temperature fluctuating between 46.9°F (8.3°C) and 30°F (-1.1°C). In November, the average high-temperature decreases, from a mild 60.1°F (15.6°C) in October, to a frosty 46.9°F (8.3°C). Weather in November »

December, the first month of the winter, in Arlington Heights, is also a wintry month, with average temperature fluctuating between 18°F (-7.8°C) and 33.1°F (0.6°C). In December, the average high-temperature decreases, from a chilly 46.9°F (8.3°C) in November, to a cold 33.1°F (0.6°C). Weather in December »

What is the coldest month in Arlington Heights?

The coldest month is January, with an average high-temperature of 28°F (-2.2°C) and an average low-temperature of 12.9°F (-10.6°C).

How much does it rain in Arlington Heights?

Throughout the year, in Arlington Heights, Illinois, 38.2" (971.5mm) of rain is accumulated.

What is the driest month in Arlington Heights?

January is the month with the least rainfall in Arlington Heights, Illinois, with 1.9" (48.3mm) of accumulated precipitation.

When are the longest days in Arlington Heights?

The month with the longest days in Arlington Heights is June, with an average of 15.2h of daylight.

What is the warmest month in Arlington Heights?

July is the warmest month in Arlington Heights, with an average high-temperature of 82°F (27.8°C) and an average low-temperature of 63°F (17.2°C).

What is the rainiest month in Arlington Heights?

The month with the most rainfall is August when 4.9" (123.4mm) of precipitation is typically aggregated.

What is the month with the shortest days in Arlington Heights?

December has the shortest days of the year in Arlington Heights, Illinois, with an average of 9.2h of daylight.
Average rainfall - Arlington Heights, IL
Average daylight - Arlington Heights, IL

The month with the longest days is June (Average daylight: 15.2h).
The month with shortest days is December (Average daylight: 9.2h).