Climate and monthly weather forecast
Elwin, IL

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Weather in January

January, the same as December, is another cold winter month in Elwin, Illinois, with temperature in the range of an average low of 21.2°F (-6°C) and an average high of 32.9°F (0.5°C). Elwin's coldest month, January, generally records average temperatures ranging from a high of 32.9°F (0.5°C) to a low of 21.2°F (-6°C). Weather in January »

Weather in February

February, the last month of the winter in Elwin, is also a wintry month, with an average temperature varying between 37.8°F (3.2°C) and 25.2°F (-3.8°C). An average high-temperature of a still icy 37.8°F (3.2°C) marks February, exhibiting a close resemblance to the conditions in January. Weather in February »

Weather in March

The first month of the spring, March, is a cool month in Elwin, Illinois, with an average temperature fluctuating between 35.6°F (2°C) and 50.5°F (10.3°C). The beginning of March marks a shift in the average high-temperature, moving from February's cold 37.8°F (3.2°C) to a fresh 50.5°F (10.3°C). Weather in March »

Weather in April

April in Elwin, Illinois, is a comfortable spring month, with an average temperature fluctuating between 46°F (7.8°C) and 61.9°F (16.6°C). Elwin sees an increase in average high-temperatures during April, moving from a cool 50.5°F (10.3°C) in March to an enjoyable 61.9°F (16.6°C). Weather in April »

Weather in May

The last month of the spring, May, is an agreeable month in Elwin, Illinois, with an average temperature varying between 72.9°F (22.7°C) and 56.7°F (13.7°C). The onset of May marks an increase in the average high-temperature, moving from a refreshing 61.9°F (16.6°C) in April to an agreeable 72.9°F (22.7°C). Weather in May »

Weather in June

June, the first month of the summer in Elwin, is a moderately hot month, with an average temperature varying between 80.6°F (27°C) and 64°F (17.8°C). The shift into June is marked by a modest rise in the average high-temperature, moving from May's pleasant 72.9°F (22.7°C) to a moderately hot 80.6°F (27°C). Weather in June »

Weather in July

July, the same as June, is a moderately hot summer month in Elwin, Illinois, with an average temperature ranging between max 82°F (27.8°C) and min 65.7°F (18.7°C). Temperature readings reach their annual highs in July, averaging 82°F (27.8°C) and a minimum average of 65.7°F (18.7°C). July's average heat index is estimated at a hot 89.6°F (32°C). Weather in July »

Weather in August

The last month of the summer, August, is another warm month in Elwin, Illinois, with an average temperature fluctuating between 81.1°F (27.3°C) and 63.9°F (17.7°C). August's arrival shows an average high-temperature of a still moderately hot 81.1°F (27.3°C), hardly different from the previous month. Weather in August »

Weather in September

The first month of the autumn, September, is still a warm month in Elwin, Illinois, with an average temperature varying between 58.5°F (14.7°C) and 77°F (25°C). With the onset of September, the average high-temperature stands at a still moderately hot 77°F (25°C), closely aligned with August's 81.1°F (27.3°C). Weather in September »

Weather in October

October, like September, in Elwin, Illinois, is another comfortable autumn month, with an average temperature varying between 64°F (17.8°C) and 48°F (8.9°C). With October's arrival, Elwin sees a decrease in average high-temperatures, moving from a warm 77°F (25°C) in September to an enjoyable 64°F (17.8°C). Weather in October »

Weather in November

November, the last month of the autumn in Elwin, is another chilly month, with an average temperature varying between 49.8°F (9.9°C) and 36.1°F (2.3°C). With November's arrival, Elwin sees a decrease in average high-temperatures, moving from a comfortable 64°F (17.8°C) in October to a frosty 49.8°F (9.9°C). Weather in November »

Weather in December

December, the first month of the winter in Elwin, is also a wintry month, with temperature in the range of an average low of 27.9°F (-2.3°C) and an average high of 38.5°F (3.6°C). Arrival of December comes with a reduction in the average high-temperature, falling from a chilly 49.8°F (9.9°C) in November to a wintry 38.5°F (3.6°C). Weather in December »
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the coldest months in Elwin?

January is the coldest month in Elwin, with the temperature often reaching an average high of 32.9°F (0.5°C) and an average low of 21.2°F (-6°C).

How many days does it rain in Elwin?

In Elwin, Illinois, during the entire year, the rain falls for 130.2 days and collects up to 16.34" (415mm) of precipitation.

When does it snow in Elwin?

January through April, November and December are months with snowfall in Elwin, Illinois.

What is the snowiest month in Elwin?

The month with the most snowfall in Elwin, Illinois, is January, when snow falls for 7.2 days and typically aggregates up to 1.85" (47mm) of snow.

How much does it snow in Elwin?

In Elwin, Illinois, during the entire year, snow falls for 23.1 days and aggregates up to 5.67" (144mm) of snow.

What is the month with the least sunshine in Elwin?

January has the least sunshine of the year in Elwin, with an average of 4.1h of sunshine.

When is the lowest UV index in Elwin?

The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2.

What is the driest month in Elwin?

The months with the least rainfall are February and December Rain falls for 5.8 days and accumulates 0.87" (22mm) of rain.

When is Daylight Saving Time (DST) in Elwin?

On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, and the time zone changes from CST to CDT. Daylight Saving Time ends Sunday, November 3. 2024, at 2:00 am, and the time zone reverts from CDT to CST.

What is the wettest month in Elwin?

May is the month with the most rainfall in Elwin. Rain falls for 17 days and accumulates 2.01" (51mm) of precipitation.

When it does not snow in Elwin?

May through October are months without snowfall.

When are the longest days in Elwin?

With an average of 14h and 54min of daylight, June has the longest days of the year in Elwin.

What month has the most sunshine in Elwin?

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

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

June through August, with an average maximum UV index of 6, are months with the highest UV index in Elwin, Illinois.

What is the warmest month in Elwin?

The month of July sees the average highest temperatures, reaching 82°F (27.8°C) at the peak and 65.7°F (18.7°C) at the low.

What is the most humid month in Elwin?

With an average relative humidity of 84%, July is the most humid month.

What is the least humid month in Elwin?

With an average relative humidity of 70%, October is the least humid month.

What is the month with the shortest days in Elwin?

The month with the shortest days is December, with an average of 9h and 24min of daylight.

Average pressure
Elwin, IL

Average pressure - Elwin, IL

The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

Average wind speed
Elwin, IL

Average wind speed - Elwin, IL

The windiest month (with the highest average wind speed) is January (10.7mph).
The calmest months (with the lowest average wind speed) are July and August (6.3mph).

Average rainfall
Elwin, IL

Average rainfall - Elwin, IL

The wettest month (with the highest rainfall) is May (2.01").
The driest months (with the least rainfall) are February and December (0.87").

Average rainfall days
Elwin, IL

Average rainfall days - Elwin, IL

The month with the highest number of rainy days is May (17 days).
The month with the least rainy days is February (5.8 days).

Average snowfall
Elwin, IL

Average snowfall - Elwin, IL

The month with the highest snowfall is January (1.85").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days
Elwin, IL

Average snowfall days - Elwin, IL

The month with the highest number of snowfall days is January (7.2 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

Average daylight / Average sunshine
Elwin, IL

Average daylight / Average sunshine - Elwin, IL

The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 24min).

The month with the most sunshine is June (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 6min).

Average sunshine days
Elwin, IL

Average sunshine days - Elwin, IL

The month with the most sunshine days is October (19.8 days).
The month with the least sunshine days is May (11.5 days).

Average UV index
Elwin, IL

Average UV index - Elwin, IL

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

Average visibility
Elwin, IL

Average visibility - Elwin, IL

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).

Elwin, Illinois, USA

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