Expand
Contents
- Weather in January
- Weather in February
- Weather in March
- Weather in April
- Weather in May
- Weather in June
- Weather in July
- Weather in August
- Weather in September
- Weather in October
- Weather in November
- Weather in December
- Frequently asked questions
- Average temperature
- Average pressure
- Average wind speed
- Average humidity
- Average rainfall
- Average rainfall days
- Average snowfall
- Average snowfall days
- Average daylight
- Average sunshine
- Average sunshine days
- Average UV index
- Average cloud cover
- Average visibility
Weather in January
January, like December, is a freezing cold winter month in Forest City, Illinois, with temperature in the range of an average low of 19.8°F (-6.8°C) and an average high of 31.5°F (-0.3°C). In Forest City, the month of January is known for its lowest average temperatures, reaching a high of 31.5°F (-0.3°C) and a low of 19.8°F (-6.8°C). Weather in January »
Weather in February
February, the last month of the winter in Forest City, is a cold month, with an average temperature ranging between min 23.4°F (-4.8°C) and max 36.7°F (2.6°C). With the onset of February, a modest change to a wintry 36.7°F (2.6°C) from January's 31.5°F (-0.3°C) is noted in high-temperature. Weather in February »
Weather in March
The first month of the spring, March, is a frosty month in Forest City, Illinois, with an average temperature varying between 34.5°F (1.4°C) and 49.6°F (9.8°C). Forest City's March weather brings a rise in high-temperatures, moving from an icy 36.7°F (2.6°C) in February to a chilly 49.6°F (9.8°C). Weather in March »
Weather in April
April in Forest City, Illinois, is a refreshing spring month, with an average temperature varying between 44.8°F (7.1°C) and 61.5°F (16.4°C). The start of April signals an increase in the average high-temperature, moving from a chilly 49.6°F (9.8°C) in March to a comfortable 61.5°F (16.4°C). Weather in April »
Weather in May
The last month of the spring, May, is an agreeable month in Forest City, Illinois, with temperature in the range of an average low of 55.8°F (13.2°C) and an average high of 72.3°F (22.4°C). The start of May brings a rise in the average high-temperature, moving from a comfortable 61.5°F (16.4°C) in April to a pleasant 72.3°F (22.4°C). Weather in May »
Weather in June
June, the first month of the summer in Forest City, is a moderately hot month, with an average temperature varying between 63.9°F (17.7°C) and 80.8°F (27.1°C). June sees a marginal temperature increase, moving from an agreeable 72.3°F (22.4°C) in May to a moderately hot 80.8°F (27.1°C). Weather in June »
Weather in July
July, like June, in Forest City, Illinois, is a moderately hot summer month, with an average temperature ranging between min 65.8°F (18.8°C) and max 82.4°F (28°C). July is the warmest month of the year, registering average temperatures as high as 82.4°F (28°C) and as low as 65.8°F (18.8°C). For July, the heat index is appraised at a hot 91.4°F (33°C). Weather in July »
Weather in August
The last month of the summer, August, is another warm month in Forest City, Illinois, with temperature in the range of an average high of 81.7°F (27.6°C) and an average low of 63.7°F (17.6°C). Forest City's shift into August is marked by a subtle change to a still moderately hot 81.7°F (27.6°C) from July's 82.4°F (28°C) in temperature. Weather in August »
Weather in September
September, the first month of the autumn in Forest City, is also a moderately hot month, with an average temperature ranging between max 76.6°F (24.8°C) and min 58.3°F (14.6°C). The advent of September signifies a minor shift to an average high-temperature of a still moderately hot 76.6°F (24.8°C), aligning closely with August. Weather in September »
Weather in October
October, like September, in Forest City, Illinois, is another refreshing autumn month, with temperature in the range of an average high of 63.3°F (17.4°C) and an average low of 47.1°F (8.4°C). The arrival of October corresponds with a reduction in the average high-temperature, down from September's moderately hot 76.6°F (24.8°C) to an enjoyable 63.3°F (17.4°C). Weather in October »
Weather in November
November, the last month of the autumn in Forest City, is another chilly month, with temperature in the range of an average low of 35.2°F (1.8°C) and an average high of 49.3°F (9.6°C). The average high-temperature decreases in November, shifting from a comfortable 63.3°F (17.4°C) in October to a frosty 49.3°F (9.6°C). Weather in November »
Weather in December
The first month of the winter, December, is still a cold month in Forest City, Illinois, with an average temperature fluctuating between 26.4°F (-3.1°C) and 37.2°F (2.9°C). With the onset of December, Forest City experiences a modest temperature adjustment, with the average high-temperature receding from a chilly 49.3°F (9.6°C) in November to a wintry 37.2°F (2.9°C). Weather in December »
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the coldest time of year in Forest City?
In Forest City, Illinois, the lowest temperatures are generally noted in January, averaging a high of 31.5°F (-0.3°C) and a low of 19.8°F (-6.8°C).
What is the driest month in Forest City?
The month with the least rainfall in Forest City, Illinois, is January, when the rain falls for 7 days and typically collects 1.73" (44mm) of precipitation.
How much does it rain in Forest City?
Throughout the year, in Forest City, there are 162.3 rainfall days, and 32.72" (831mm) of precipitation is accumulated.
When does it snow in Forest City?
January through April, October through December are months with snowfall in Forest City, Illinois.
When does it snow the most in Forest City?
The month with the most snowfall in Forest City, Illinois, is January, when snow falls for 11.3 days and typically aggregates up to 4.25" (108mm) of snow.
How many days does it snow in Forest City?
Throughout the year, in Forest City, Illinois, there are 35.3 snowfall days, and 13.35" (339mm) of snow is accumulated.
What is the month with the least sunshine in Forest City?
With an average of 4.1h of sunshine, January has the least sunshine of the year.
What is the month with the lowest UV index in Forest City?
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index.
When is Daylight Saving Time (DST) in Forest City?
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Forest City, 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 rainiest month in Forest City?
The month with the most rainfall in Forest City is May, when the rain falls for 20.3 days and typically aggregates up to 4.49" (114mm) of precipitation.
When it does not snow in Forest City?
May through September are months without snowfall in Forest City, Illinois.
When are the longest days in Forest City?
The month with the longest days is June, with an average of 15h and 0min of daylight.
What month has the most sunshine in Forest City?
June has the most sunshine of the year, with an average of 10.3h of sunshine.
When is the highest UV index in Forest City?
The months with the highest UV index are June through August, with an average maximum UV index of 6.
What month is the hottest in Forest City?
July is the warmest month of the year in Forest City, Illinois, registering average temperatures as high as 82.4°F (28°C) and as low as 65.8°F (18.8°C).
What is the most humid month in Forest City?
The most humid month in Forest City is July, with an average relative humidity of 83%.
What is the least humid month in Forest City?
With an average relative humidity of 70%, October is the least humid month in Forest City, Illinois.
What is the month with the shortest days in Forest City?
The month with the shortest days is December, with an average of 9h and 18min of daylight.
Average temperature
Forest City, IL
The warmest month (with the highest average high temperature) is July (82.4°F).
The month with the lowest average high temperature is January (31.5°F).
The month with the highest average low temperature is July (65.8°F).
The coldest month (with the lowest average low temperature) is January (19.8°F).
Average pressure
Forest City, IL
- Average pressure in January:
30.14"Hg - Average pressure in February:
30.12"Hg - Average pressure in March:
30.08"Hg - Average pressure in April:
29.94"Hg - Average pressure in May:
29.95"Hg - Average pressure in June:
29.91"Hg
- Average pressure in July:
29.97"Hg - Average pressure in August:
29.97"Hg - Average pressure in September:
30.03"Hg - Average pressure in October:
30.02"Hg - Average pressure in November:
30.11"Hg - Average pressure in December:
30.11"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
Forest City, IL
- Average wind speed in January:
10.3mph - Average wind speed in February:
10.3mph - Average wind speed in March:
10.2mph - Average wind speed in April:
10.4mph - Average wind speed in May:
8.7mph - Average wind speed in June:
7.6mph
- Average wind speed in July:
6.5mph - Average wind speed in August:
6.3mph - Average wind speed in September:
7.4mph - Average wind speed in October:
9.1mph - Average wind speed in November:
9.9mph - Average wind speed in December:
9.7mph
The windiest month (with the highest average wind speed) is April (10.4mph).
The calmest month (with the lowest average wind speed) is August (6.3mph).
Average humidity
Forest City, IL
The month with the highest relative humidity is July (83%).
The month with the lowest relative humidity is October (70%).
Average rainfall
Forest City, IL
- Average rainfall in January:
1.73" - Average rainfall in February:
1.77" - Average rainfall in March:
2.44" - Average rainfall in April:
3.74" - Average rainfall in May:
4.49" - Average rainfall in June:
3.78"
- Average rainfall in July:
2.83" - Average rainfall in August:
2.6" - Average rainfall in September:
2.68" - Average rainfall in October:
2.95" - Average rainfall in November:
1.93" - Average rainfall in December:
1.77"
The wettest month (with the highest rainfall) is May (4.49").
The driest month (with the least rainfall) is January (1.73").
Average rainfall days
Forest City, IL
- Average rainfall days in January:
7 days - Average rainfall days in February:
6.5 days - Average rainfall days in March:
13.8 days - Average rainfall days in April:
16.5 days - Average rainfall days in May:
20.3 days - Average rainfall days in June:
19.7 days
- Average rainfall days in July:
18.9 days - Average rainfall days in August:
15.5 days - Average rainfall days in September:
13 days - Average rainfall days in October:
12.7 days - Average rainfall days in November:
9.5 days - Average rainfall days in December:
8.9 days
The month with the highest number of rainy days is May (20.3 days).
The month with the least rainy days is February (6.5 days).
Average snowfall
Forest City, IL
The month with the highest snowfall is January (4.25").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days
Forest City, IL
- Average snowfall days in January:
11.3 days - Average snowfall days in February:
9.2 days - Average snowfall days in March:
4.1 days - Average snowfall days in April:
1.1 days - Average snowfall days in May:
0 days - Average snowfall days in June:
0 days
- Average snowfall days in July:
0 days - Average snowfall days in August:
0 days - Average snowfall days in September:
0 days - Average snowfall days in October:
0.2 days - Average snowfall days in November:
2.5 days - Average snowfall days in December:
6.9 days
The month with the highest number of snowfall days is January (11.3 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight / Average sunshine
Forest City, IL
- Average daylight in January:
9h and 4min - Average daylight in February:
10h and 4min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 2min - Average daylight in May:
14h and 2min - Average daylight in June:
15h and 0min
- Average daylight in July:
14h and 4min - Average daylight in August:
13h and 4min - Average daylight in September:
12h and 2min - Average daylight in October:
11h and 1min - Average daylight in November:
10h and 0min - Average daylight in December:
9h and 2min
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 January:
4h and 1min - Average sunshine in February:
4h and 2min - Average sunshine in March:
6h and 4min - Average sunshine in April:
8h and 2min - Average sunshine in May:
9h and 1min - Average sunshine in June:
10h and 2min
- Average sunshine in July:
10h and 1min - Average sunshine in August:
10h and 0min - Average sunshine in September:
9h and 2min - Average sunshine in October:
5h and 5min - Average sunshine in November:
5h and 2min - Average sunshine in December:
4h and 3min
The month with the most sunshine is June (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 4h and 6min).
Average sunshine days
Forest City, IL
- Average sunshine days in January:
14.8 days - Average sunshine days in February:
13.3 days - Average sunshine days in March:
13.4 days - Average sunshine days in April:
11.1 days - Average sunshine days in May:
8.7 days - Average sunshine days in June:
8.8 days
- Average sunshine days in July:
8.5 days - Average sunshine days in August:
11.8 days - Average sunshine days in September:
15.2 days - Average sunshine days in October:
16.2 days - Average sunshine days in November:
17.9 days - Average sunshine days in December:
16.9 days
The month with the most sunshine days is November (17.9 days).
The month with the least sunshine days is July (8.5 days).
Average UV index
Forest City, 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 cloud cover
Forest City, IL
The month with the most cloud cover is January (Cloud cover 56).
The month with the least cloud cover is September (Cloud cover 29).
Average visibility
Forest City, 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).
Forest City, Illinois, USA
Weather forecast for your location
1. Click Locate me button
2. Allow the app to use your location
2. Allow the app to use your location