Climate and monthly weather forecastOglesby, IL
Climate and monthly weather forecast
Weather in January
January, like December, is a freezing cold winter month in Oglesby, Illinois, with an average temperature fluctuating between 28.9°F (-1.7°C) and 16.9°F (-8.4°C). January stands out as Oglesby's coldest month, with an average high-temperature of 28.9°F (-1.7°C) and a low-temperature of 16.9°F (-8.4°C). Weather in January »Weather in February
February, the last month of the winter in Oglesby, is a cold month, with an average temperature ranging between max 33.4°F (0.8°C) and min 20.5°F (-6.4°C). The start of February marks an average high-temperature of an icy 33.4°F (0.8°C), hardly distinguishable from the conditions in January. Weather in February »Weather in March
The first month of the spring, March, is a frosty month in Oglesby, Illinois, with temperature in the range of an average high of 46.8°F (8.2°C) and an average low of 32.4°F (0.2°C). The arrival of March brings a temperature shift, with the average high-temperature escalating from an icy 33.4°F (0.8°C) in February to a chilly 46.8°F (8.2°C). Weather in March »Weather in April
April is a refreshing spring month in Oglesby, Illinois, with an average temperature fluctuating between 42.4°F (5.8°C) and 58.8°F (14.9°C). April's onset is marked by a temperature increase, moving from a frosty 46.8°F (8.2°C) in March to a mild 58.8°F (14.9°C). Weather in April »Weather in May
May, the last month of the spring in Oglesby, is a pleasant month, with temperature in the range of an average high of 70.5°F (21.4°C) and an average low of 53.6°F (12°C). With the beginning of May, Oglesby's average high-temperature sees an increase, transitioning from a moderate 58.8°F (14.9°C) in April to a pleasant 70.5°F (21.4°C). Weather in May »Weather in June
June, the first month of the summer in Oglesby, is a warm month, with an average temperature fluctuating between 78.8°F (26°C) and 61.5°F (16.4°C). With the transition into June, Oglesby experiences a subtle uplift in average high-temperatures, adjusting from a pleasant 70.5°F (21.4°C) in May to a moderately hot 78.8°F (26°C). Weather in June »Weather in July
July, the same as June, is another warm summer month in Oglesby, Illinois, with an average temperature varying between 80.6°F (27°C) and 64.2°F (17.9°C). July is the month when Oglesby's temperatures reach their peak, with averages of 80.6°F (27°C) and lows of 64.2°F (17.9°C). In July, the average heat index is calculated to be a tropical 86°F (30°C). Weather in July »Weather in August
August, the last month of the summer in Oglesby, is another warm month, with an average temperature ranging between min 62.1°F (16.7°C) and max 79.5°F (26.4°C). During August, the average high-temperature is a still warm 79.5°F (26.4°C), maintaining a close resemblance to that of the preceding month. Weather in August »Weather in September
September, the first month of the autumn in Oglesby, is also a moderately hot month, with an average temperature fluctuating between 74.5°F (23.6°C) and 56.1°F (13.4°C). September notes an average high-temperature of a still moderately hot 74.5°F (23.6°C), subtly differing from August's 79.5°F (26.4°C). Weather in September »Weather in October
October, the same as September, is another refreshing autumn month in Oglesby, Illinois, with temperature in the range of an average low of 45.7°F (7.6°C) and an average high of 61.7°F (16.5°C). The arrival of October signals a shift in temperature, down from a moderately hot 74.5°F (23.6°C) in September to a comfortable 61.7°F (16.5°C). Weather in October »Weather in November
November, the last month of the autumn in Oglesby, is also a frosty month, with an average temperature varying between 33.8°F (1°C) and 46.8°F (8.2°C). In Oglesby, the average high-temperature in November significantly decreases from a comfortable 61.7°F (16.5°C) in October to a frosty 46.8°F (8.2°C). Weather in November »Weather in December
December, the first month of the winter in Oglesby, is also an icy month, with an average temperature varying between 24.6°F (-4.1°C) and 34.9°F (1.6°C). Start of December brings a shift in the average high-temperature, falling from November's frosty 46.8°F (8.2°C) to an icy 34.9°F (1.6°C). Weather in December »Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature
Oglesby, IL
The warmest month (with the highest average high temperature) is July (80.6°F).
The month with the lowest average high temperature is January (28.9°F).
The month with the highest average low temperature is July (64.2°F).
The coldest month (with the lowest average low temperature) is January (16.9°F).
Average pressure
Oglesby, IL
- Average pressure in January:
30.13"Hg - Average pressure in February:
30.11"Hg - Average pressure in March:
30.08"Hg - Average pressure in April:
29.94"Hg - Average pressure in May:
29.96"Hg - Average pressure in June:
29.91"Hg
- Average pressure in July:
29.97"Hg - Average pressure in August:
29.98"Hg - Average pressure in September:
30.03"Hg - Average pressure in October:
30.01"Hg - Average pressure in November:
30.1"Hg - Average pressure in December:
30.1"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed
Oglesby, IL
- Average wind speed in January:
10.3mph - Average wind speed in February:
10.2mph - Average wind speed in March:
9.9mph - Average wind speed in April:
10.3mph - Average wind speed in May:
8.8mph - Average wind speed in June:
7.6mph
- Average wind speed in July:
6.5mph - Average wind speed in August:
6.2mph - Average wind speed in September:
7.4mph - Average wind speed in October:
9.2mph - Average wind speed in November:
9.9mph - Average wind speed in December:
9.6mph
The windiest months (with the highest average wind speed) are January and April (10.3mph).
The calmest month (with the lowest average wind speed) is August (6.2mph).
Average humidity
Oglesby, IL
The month with the highest relative humidity is July (85%).
The month with the lowest relative humidity is October (72%).
Average rainfall
Oglesby, IL
- Average rainfall in January:
1.65" - Average rainfall in February:
1.57" - Average rainfall in March:
2.13" - Average rainfall in April:
3.78" - Average rainfall in May:
4.65" - Average rainfall in June:
3.31"
- Average rainfall in July:
2.8" - Average rainfall in August:
2.28" - Average rainfall in September:
2.28" - Average rainfall in October:
2.83" - Average rainfall in November:
1.77" - Average rainfall in December:
1.61"
The wettest month (with the highest rainfall) is May (4.65").
The driest month (with the least rainfall) is February (1.57").
Average rainfall days
Oglesby, IL
- Average rainfall days in January:
5.5 days - Average rainfall days in February:
6.1 days - Average rainfall days in March:
12.8 days - Average rainfall days in April:
16.7 days - Average rainfall days in May:
18.5 days - Average rainfall days in June:
17.8 days
- Average rainfall days in July:
17.1 days - Average rainfall days in August:
15 days - Average rainfall days in September:
11.5 days - Average rainfall days in October:
12.5 days - Average rainfall days in November:
10.1 days - Average rainfall days in December:
7.8 days
The month with the highest number of rainy days is May (18.5 days).
The month with the least rainy days is January (5.5 days).
Average snowfall
Oglesby, IL
The month with the highest snowfall is January (4.37").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days
Oglesby, IL
- Average snowfall days in January:
12.1 days - Average snowfall days in February:
9.8 days - Average snowfall days in March:
5.8 days - Average snowfall days in April:
1.8 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:
0.4 days - Average snowfall days in November:
3.1 days - Average snowfall days in December:
7.5 days
The month with the highest number of snowfall days is January (12.1 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight / Average sunshine
Oglesby, IL
- Average daylight in January:
9h and 36min - Average daylight in February:
10h and 36min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 24min - Average daylight in May:
14h and 30min - Average daylight in June:
15h and 6min
- Average daylight in July:
14h and 48min - Average daylight in August:
13h and 48min - Average daylight in September:
12h and 30min - Average daylight in October:
11h and 6min - Average daylight in November:
9h and 54min - Average daylight in December:
9h and 18min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in January:
3h and 54min - Average sunshine in February:
4h and 0min - Average sunshine in March:
6h and 18min - Average sunshine in April:
7h and 48min - Average sunshine in May:
8h and 42min - Average sunshine in June:
9h and 48min
- Average sunshine in July:
9h and 42min - Average sunshine in August:
9h and 42min - Average sunshine in September:
8h and 48min - Average sunshine in October:
5h and 42min - Average sunshine in November:
5h and 12min - Average sunshine in December:
4h and 12min
The month with the most sunshine is June (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).
Average sunshine days
Oglesby, IL
- Average sunshine days in January:
13.8 days - Average sunshine days in February:
12.9 days - Average sunshine days in March:
13.2 days - Average sunshine days in April:
10.8 days - Average sunshine days in May:
10.4 days - Average sunshine days in June:
10.7 days
- Average sunshine days in July:
11.3 days - Average sunshine days in August:
13.8 days - Average sunshine days in September:
15.2 days - Average sunshine days in October:
16.1 days - Average sunshine days in November:
17.4 days - Average sunshine days in December:
16.3 days
The month with the most sunshine days is November (17.4 days).
The month with the least sunshine days is May (10.4 days).
Average UV index
Oglesby, IL
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover
Oglesby, IL
The month with the most cloud cover is January (Cloud cover 59).
The month with the least cloud cover is September (Cloud cover 32).
Average visibility
Oglesby, IL
The months with the highest visibility are February, March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are January, July and August (5mi).





