Olney, IL weather
Today, hourly and 7-day forecast, sunrise and sunset, and the normal climate month by month
Weather in Olney now
Loading the National Weather Service forecast…
Olney weather by the hour
Olney weather for the next 7 days
Source: National Weather Service (NOAA) · forecast for the coordinates of Olney.
This week in Olney
Sunrise, sunset and moon in Olney
What is the weather usually like in Olney?
Köppen climate classification, calculated from the 1991–2020 normals
- Julywarmest month · 87°F average high
- Januarycoldest month · 21°F average low
- 48.8 inprecipitation per year · 1,239 mm
- 10.5 insnowfall per year · 27 cm
Average high and low temperature (°F)
Average precipitation (inches)
Best time to visit Olney: May and August to October, with mild temperatures and fewer rainy days.
Source: NOAA NCEI U.S. Climate Normals 1991–2020, station OLNEY 2S, IL US (USC00116446), adjusted for the elevation of Olney.
Olney weather month by month
Sunrise and sunset in Olney through the year
| Month | Sunrise | Sunset | Daylight |
|---|---|---|---|
| January | 7:07 AM | 4:56 PM | 9 h 49 min |
| February | 6:41 AM | 5:31 PM | 10 h 49 min |
| March | 7:01 AM | 7:00 PM | 11 h 58 min |
| April | 6:14 AM | 7:30 PM | 13 h 16 min |
| May | 5:38 AM | 7:59 PM | 14 h 20 min |
| June | 5:25 AM | 8:20 PM | 14 h 54 min |
| July | 5:38 AM | 8:18 PM | 14 h 39 min |
| August | 6:05 AM | 7:48 PM | 13 h 43 min |
| September | 6:32 AM | 7:02 PM | 12 h 29 min |
| October | 7:00 AM | 6:15 PM | 11 h 15 min |
| November | 6:33 AM | 4:40 PM | 10 h 6 min |
| December | 7:01 AM | 4:33 PM | 9 h 31 min |
Times for the 15th of each month, local time (America/Chicago).
What is the weather like in Olney?
Olney has a hot-summer humid continental climate. The warmest month is July, with an average high of 87°F (30°C), and the coldest is January, with average lows of 21°F (-6°C).
It gets about 48.8 inches (1,239 mm) of precipitation a year. The wettest month is May and the driest is February. Snow is common: about 10 inches fall in an average year.
The best time to visit Olney is May and August to October. At 489 ft of elevation, nights are mild most of the year. The live forecast on this page comes from the National Weather Service and the climate averages from NOAA’s 1991–2020 U.S. Climate Normals.
More about Olney
Weather in towns near Olney
Questions about the weather in Olney
What is the hottest month in Olney?
July, with an average high of 87°F (30°C).
What is the coldest month in Olney?
January, with an average low of 21°F (-6°C).
How much does it rain in Olney?
About 48.8 inches (1,239 mm) a year; the wettest month is May.
Does it snow in Olney?
Yes, about 10 inches of snow fall in an average year.
When is the best time to visit Olney?
May and August to October, when temperatures are most pleasant and rainy days are fewer.
What climate does Olney have?
Hot-summer humid continental (Köppen Dfa).
What is the weather like in Olney in November?
Highs average 54°F and lows 33°F, with about 4.3 inches of precipitation.
What time is sunrise in Olney?
Around 6:33 AM in mid-November, and sunset around 4:40 PM. Today’s exact times are shown above.
Where does this Olney weather forecast come from?
From the National Weather Service (NOAA), the official U.S. weather agency, for the exact coordinates of Olney.
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