Live Weather & Forecast
Weather in East Saint Louis
Illinois, United States · Real-time conditions & 3-day outlook
26°C
Feels like 27°C
79°F / Feels 80°F
Sunny
East Saint Louis, Illinois
🌞 Daytime
Updated: 2026-04-12 12:30
Humidity
44%
Wind
29.2 km/h SSW
Wind Gust
33.6 km/h
Pressure
1017 mb
Visibility
16 km
UV Index
7
(High)
Precipitation
0 mm
Cloud Cover
25%
Dew Point
16.3°C
Wind Degree
198°
Air Quality Index
US EPA: Good
UK DEFRA: Low (1)
CO
172.9 μg/m³
NO₂
4.5 μg/m³
O₃
112 μg/m³
SO₂
2.4 μg/m³
PM 2.5
6.3 μg/m³
PM 10
6.9 μg/m³
Today's Hourly Forecast
24-hour breakdown for East Saint Louis, Illinois
12 AM
18°
Clear
1 AM
18°
Clear
2 AM
17°
Clear
3 AM
17°
Clear
4 AM
16°
Clear
5 AM
16°
Clear
6 AM
16°
Clear
7 AM
17°
Sunny
8 AM
19°
Sunny
9 AM
21°
Sunny
10 AM
24°
Sunny
11 AM
27°
Sunny
12 PM
26°
Sunny
1 PM
29°
Sunny
2 PM
29°
Sunny
3 PM
30°
Sunny
4 PM
28°
Sunny
5 PM
27°
Overcast
6 PM
25°
Overcast
7 PM
24°
Overcast
8 PM
23°
Overcast
9 PM
22°
Cloudy
10 PM
22°
Overcast
11 PM
19°
Overcast
3-Day Forecast
Daily overview for East Saint Louis, Illinois
Today
Sunny
31°
/
16°
🌧️ 0% chance of rain
💧 Avg. humidity: 59%
💨 Max wind: 30.6 km/h
🌧️ Total precip: 0 mm
☀️ UV Index: 1.7
🌅 Sunrise: 06:28 AM
🌇 Sunset: 07:35 PM
🌙 Waning Crescent
🌑 Moon: 33% lit
Mon, Apr 13
Thundery outbreaks in nearby
30°
/
17°
🌧️ 0% chance of rain
💧 Avg. humidity: 73%
💨 Max wind: 29.9 km/h
🌧️ Total precip: 0 mm
☀️ UV Index: 2
🌅 Sunrise: 06:27 AM
🌇 Sunset: 07:36 PM
🌙 Waning Crescent
🌑 Moon: 23% lit
Tue, Apr 14
Thundery outbreaks in nearby
27°
/
20°
🌧️ 0% chance of rain
💧 Avg. humidity: 75%
💨 Max wind: 29.9 km/h
🌧️ Total precip: 0 mm
☀️ UV Index: 1.9
🌅 Sunrise: 06:26 AM
🌇 Sunset: 07:37 PM
🌙 Waning Crescent
🌑 Moon: 15% lit
Best Time to Visit East Saint Louis
Plan your trip to East Saint Louis, 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 East Saint Louis?
Current conditions in East Saint Louis: Sunny, temperature 26°C, humidity 44%.
What is the best time to visit East Saint Louis?
The best time to visit East Saint Louis is typically June – September. Warm, dry summers — ideal for outdoor activities.
What is the climate like in East Saint Louis?
East Saint Louis is located at approximately 38.6° latitude. It has a temperate climate with warm summers and cold winters.
Does it rain a lot in East Saint Louis?
The wettest period in East Saint Louis is typically during November – March. Cooler temperatures; some regions may experience rain or snow.
What should I pack for a trip to East Saint Louis?
For visits to East Saint Louis during June – September: light clothing and sun protection. For November – March: layers and a waterproof jacket are recommended.
What country is East Saint Louis in?
East Saint Louis is located in United States, in the state of Illinois.
What are the public holidays in East Saint Louis in 2026?
View the 2026 public holidays for East Saint Louis on our Holidays page.
What are the GPS coordinates used for the weather forecast in East Saint Louis?
The weather forecast for East Saint Louis uses coordinates 38.6269, -90.1597.