Live Weather & Forecast
Weather in Trenton
Illinois, United States · Real-time conditions & 3-day outlook
14°C
Feels like 14°C
58°F / Feels 57°F
Moderate rain
Trenton, Illinois
🌞 Daytime
Updated: 2026-04-12 12:45
Humidity
38%
Wind
9.4 km/h S
Wind Gust
10.8 km/h
Pressure
1033 mb
Visibility
16 km
UV Index
6.3
(High)
Precipitation
0 mm
Cloud Cover
25%
Dew Point
0.7°C
Wind Degree
168°
Air Quality Index
US EPA: Good
UK DEFRA: Low (1)
CO
178.9 μg/m³
NO₂
5 μg/m³
O₃
104 μg/m³
SO₂
3.5 μg/m³
PM 2.5
7.7 μg/m³
PM 10
8.5 μg/m³
Today's Hourly Forecast
24-hour breakdown for Trenton, Illinois
12 AM
9°
Clear
1 AM
8°
Clear
2 AM
7°
Clear
3 AM
7°
Clear
4 AM
6°
Clear
5 AM
5°
Clear
6 AM
4°
Clear
7 AM
5°
Sunny
8 AM
7°
Sunny
9 AM
9°
Sunny
10 AM
12°
Sunny
11 AM
14°
Sunny
12 PM
14°
Moderate rain
1 PM
18°
Sunny
2 PM
19°
Sunny
3 PM
19°
Sunny
4 PM
19°
Sunny
5 PM
18°
Sunny
6 PM
17°
Sunny
7 PM
15°
Sunny
8 PM
13°
Partly Cloudy
9 PM
12°
Partly Cloudy
10 PM
11°
Clear
11 PM
10°
Partly Cloudy
3-Day Forecast
Daily overview for Trenton, Illinois
Today
Sunny
20°
/
4°
🌧️ 0% chance of rain
💧 Avg. humidity: 51%
💨 Max wind: 17.6 km/h
🌧️ Total precip: 0 mm
☀️ UV Index: 1.7
🌅 Sunrise: 06:25 AM
🌇 Sunset: 07:35 PM
🌙 Waning Crescent
🌑 Moon: 33% lit
Mon, Apr 13
Partly Cloudy
23°
/
8°
🌧️ 0% chance of rain
💧 Avg. humidity: 78%
💨 Max wind: 26.3 km/h
🌧️ Total precip: 0.01 mm
☀️ UV Index: 1.5
🌅 Sunrise: 06:24 AM
🌇 Sunset: 07:36 PM
🌙 Waning Crescent
🌑 Moon: 23% lit
Tue, Apr 14
Partly Cloudy
27°
/
17°
🌧️ 0% chance of rain
💧 Avg. humidity: 66%
💨 Max wind: 20.2 km/h
🌧️ Total precip: 0 mm
☀️ UV Index: 1.9
🌅 Sunrise: 06:22 AM
🌇 Sunset: 07:37 PM
🌙 Waning Crescent
🌑 Moon: 15% lit
Best Time to Visit Trenton
Plan your trip to Trenton, 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
What is the current weather in Trenton?
Current conditions in Trenton: Moderate rain, temperature 14°C, humidity 38%.
What is the best time to visit Trenton?
The best time to visit Trenton is typically June – September. Warm, dry summers — ideal for outdoor activities.
What is the climate like in Trenton?
Trenton is located at approximately 40.2° latitude. It has a temperate climate with warm summers and cold winters.
Does it rain a lot in Trenton?
The wettest period in Trenton is typically during November – March. Cooler temperatures; some regions may experience rain or snow.
What should I pack for a trip to Trenton?
For visits to Trenton during June – September: light clothing and sun protection. For November – March: layers and a waterproof jacket are recommended.
What country is Trenton in?
Trenton is located in United States, in the state of Illinois.
What are the public holidays in Trenton in 2026?
View the 2026 public holidays for Trenton on our Holidays page.
What are the GPS coordinates used for the weather forecast in Trenton?
The weather forecast for Trenton uses coordinates 40.2203, -74.7659.