Live Weather & Forecast
Weather in Olney
Illinois, United States · Real-time conditions & 3-day outlook
22°C
Feels like 22°C
71°F / Feels 71°F
Clear
Olney, Illinois
🌙 Nighttime
Updated: 2026-04-11 21:30
Humidity
81%
Wind
23 km/h SSE
Wind Gust
39.8 km/h
Pressure
1016 mb
Visibility
16 km
UV Index
0
(Low)
Precipitation
0 mm
Cloud Cover
0%
Dew Point
18°C
Wind Degree
154°
Air Quality Index
US EPA: Good
UK DEFRA: Low (1)
CO
139.9 μg/m³
NO₂
2.7 μg/m³
O₃
75 μg/m³
SO₂
1.2 μg/m³
PM 2.5
3.6 μg/m³
PM 10
3.8 μg/m³
Today's Hourly Forecast
24-hour breakdown for Olney, Illinois
12 AM
20°
Clear
1 AM
19°
Clear
2 AM
19°
Clear
3 AM
18°
Clear
4 AM
18°
Clear
5 AM
18°
Clear
6 AM
19°
Overcast
7 AM
19°
Overcast
8 AM
20°
Overcast
9 AM
20°
Overcast
10 AM
21°
Cloudy
11 AM
23°
Overcast
12 PM
23°
Partly Cloudy
1 PM
24°
Sunny
2 PM
25°
Sunny
3 PM
24°
Partly Cloudy
4 PM
24°
Patchy rain nearby
5 PM
24°
Patchy rain nearby
6 PM
24°
Sunny
7 PM
23°
Sunny
8 PM
21°
Sunny
9 PM
22°
Clear
10 PM
20°
Clear
11 PM
20°
Clear
3-Day Forecast
Daily overview for Olney, Illinois
Today
Patchy rain nearby
26°
/
18°
🌧️ 79% chance of rain
💧 Avg. humidity: 81%
💨 Max wind: 27 km/h
🌧️ Total precip: 1.21 mm
☀️ UV Index: 1.2
🌅 Sunrise: 07:10 AM
🌇 Sunset: 08:03 PM
🌙 Waning Crescent
🌑 Moon: 42% lit
Sun, Apr 12
Heavy rain
28°
/
17°
🌧️ 87% chance of rain
💧 Avg. humidity: 82%
💨 Max wind: 36.7 km/h
🌧️ Total precip: 43.58 mm
☀️ UV Index: 1.7
🌅 Sunrise: 07:08 AM
🌇 Sunset: 08:04 PM
🌙 Waning Crescent
🌑 Moon: 33% lit
Mon, Apr 13
Overcast
31°
/
21°
🌧️ 0% chance of rain
💧 Avg. humidity: 74%
💨 Max wind: 33.8 km/h
🌧️ Total precip: 0 mm
☀️ UV Index: 2.2
🌅 Sunrise: 07:07 AM
🌇 Sunset: 08:04 PM
🌙 Waning Crescent
🌑 Moon: 23% lit
Best Time to Visit Olney
Plan your trip to Olney, United States around the most favorable weather conditions.
Peak Season
June – September
Warm, dry summers — ideal for outdoor activities.
Shoulder Season
April – May, October
Fewer crowds, moderate prices, mild weather.
Off Season
November – March
Cooler temperatures; some regions may experience rain or snow.
Frequently Asked Questions
People also ask — answers optimized for search engines and voice queries.
What is the current weather in Olney?
Current conditions in Olney: Clear, temperature 22°C, humidity 81%.
What is the best time to visit Olney?
The best time to visit Olney is typically June – September. Warm, dry summers — ideal for outdoor activities.
What is the climate like in Olney?
Olney is located at approximately 33.4° latitude. It has a temperate climate with warm summers and cold winters.
Does it rain a lot in Olney?
The wettest period in Olney is typically during November – March. Cooler temperatures; some regions may experience rain or snow.
What should I pack for a trip to Olney?
For visits to Olney during June – September: light clothing and sun protection. For November – March: layers and a waterproof jacket are recommended.
What country is Olney in?
Olney is located in United States, in the state of Illinois.
What are the public holidays in Olney in 2026?
View the 2026 public holidays for Olney on our Holidays page.
What are the GPS coordinates used for the weather forecast in Olney?
The weather forecast for Olney uses coordinates 33.3711, -98.7567.