Live Weather & Forecast

Weather in Chicago Heights

Illinois, United States · Real-time conditions & 3-day outlook

Flag of United States
Overcast
18°C
Feels like 18°C
64°F / Feels 64°F
Overcast
Chicago Heights, Illinois
🌙 Nighttime
Updated: 2026-04-13 04:15
💧
Humidity
88%
💨
Wind
19.8 km/h SW
🌬️
Wind Gust
31.3 km/h
🌡️
Pressure
1011 mb
👁️
Visibility
16 km
☀️
UV Index
0 (Low)
🌧️
Precipitation
0.11 mm
☁️
Cloud Cover
100%
💦
Dew Point
15.5°C
🌐
Wind Degree
231°

Air Quality Index

US EPA: Good UK DEFRA: Low (1)
CO
165.9 μg/m³
NO₂
8.9 μg/m³
O₃
63 μg/m³
SO₂
2.8 μg/m³
PM 2.5
6 μg/m³
PM 10
6.4 μg/m³

Weather Alerts 3

Met · Severe · Immediate
Flood Warning issued April 12 at 10:22AM CDT until April 14 at 1:00AM CDT by NWS Chicago IL

...The Flood Warning continues for the following rivers in Indiana... Kankakee River at Dunns Bridge affecting Porter and Jasper Counties. Kankakee River at Shelby affecting Newton and Lake IN Counties. For the Kankakee River...including Dunns Bridge...Minor flooding is occurring. * WHAT...Minor flooding is occurring and minor flooding is forecast. * WHERE...Kankakee River from Near I-65 and...

A Flood Warning means water levels above flood stage are imminent or may already be occurring. Persons along rivers and streams in the warned area should take immediate precautions to protect life and property. These forecasts are based on observed precipitation as well as forecast precipitation...

Met · Severe · Immediate
Flood Warning issued April 12 at 9:04PM CDT until April 13 at 7:00PM CDT by NWS Chicago IL

...The Flood Warning continues for the following rivers in Indiana... Illinois... Kankakee River at Shelby affecting Lake IN and Newton Counties. Fox River at Algonquin Lock & Dam tailwater affecting Kane, McHenry and Lake IL Counties. * WHAT...Minor flooding is occurring and minor flooding is forecast. * WHERE...Kankakee River from Near I-65 and De Motte downstream to IL/IN state line, includ...

A Flood Warning means water levels above flood stage are imminent or may already be occurring. Persons along rivers and streams in the warned area should take immediate precautions to protect life and property. These forecasts are based on observed precipitation as well as forecast precipitation...

Met · Moderate · Expected
Special Weather Statement issued April 13 at 12:06AM EDT by NWS Northern Indiana

Gusty south winds could briefly gust as high as 50 mph for a short time during the early morning hours through around 3 AM EDT. A band of showers moving across northwest Indiana and southwest Lower Michigan will likely aid in producing some stronger wind gusts of 40 to 50 mph. If travelling, be prepared for brief periods of these stronger wind gusts, particularly for high profile vehicles.

Today's Hourly Forecast

24-hour breakdown for Chicago Heights, Illinois

12 AM
Patchy light drizzle
18°
Patchy light drizzle
💧 75% 💨 31.7 km/h 🌧️ 100%
1 AM
Cloudy
17°
Cloudy
💧 82% 💨 28.1 km/h
2 AM
Clear
17°
Clear
💧 89% 💨 25.6 km/h
3 AM
Light drizzle
17°
Light drizzle
💧 90% 💨 23.8 km/h 🌧️ 100%
4 AM
Overcast
18°
Overcast
💧 88% 💨 19.8 km/h 🌧️ 100%
5 AM
Clear
17°
Clear
💧 87% 💨 20.2 km/h
6 AM
Partly Cloudy
17°
Partly Cloudy
💧 89% 💨 18.7 km/h
7 AM
Sunny
18°
Sunny
💧 91% 💨 18 km/h
8 AM
Overcast
19°
Overcast
💧 90% 💨 16.6 km/h
9 AM
Overcast
19°
Overcast
💧 91% 💨 15.5 km/h
10 AM
Overcast
20°
Overcast
💧 91% 💨 16.2 km/h
11 AM
Overcast
21°
Overcast
💧 89% 💨 18 km/h
12 PM
Overcast
22°
Overcast
💧 85% 💨 21.6 km/h
1 PM
Cloudy
23°
Cloudy
💧 80% 💨 21.2 km/h
2 PM
Overcast
23°
Overcast
💧 82% 💨 17.3 km/h
3 PM
Cloudy
23°
Cloudy
💧 77% 💨 20.5 km/h
4 PM
Patchy rain nearby
20°
Patchy rain nearby
💧 82% 💨 22.3 km/h 🌧️ 100%
5 PM
Moderate rain at times
21°
Moderate rain at times
💧 92% 💨 21.6 km/h 🌧️ 100%
6 PM
Thundery outbreaks in nearby
22°
Thundery outbreaks in nearby
💧 83% 💨 23 km/h
7 PM
Thundery outbreaks in nearby
22°
Thundery outbreaks in nearby
💧 85% 💨 24.5 km/h
8 PM
Thundery outbreaks in nearby
21°
Thundery outbreaks in nearby
💧 89% 💨 26.3 km/h
9 PM
Thundery outbreaks in nearby
22°
Thundery outbreaks in nearby
💧 90% 💨 25.6 km/h
10 PM
Thundery outbreaks in nearby
21°
Thundery outbreaks in nearby
💧 82% 💨 26.6 km/h
11 PM
Overcast
21°
Overcast
💧 93% 💨 25.2 km/h

3-Day Forecast

Daily overview for Chicago Heights, Illinois

Today
Moderate rain
Moderate rain
23° / 17°
🌧️ 88% chance of rain
💧 Avg. humidity: 86%
💨 Max wind: 31.7 km/h
🌧️ Total precip: 5.63 mm
☀️ UV Index: 1
🌅 Sunrise: 06:14 AM
🌇 Sunset: 07:29 PM
🌙 Waning Crescent
🌑 Moon: 23% lit
Tue, Apr 14
Patchy rain nearby
Patchy rain nearby
23° / 19°
🌧️ 77% chance of rain
💧 Avg. humidity: 88%
💨 Max wind: 31.3 km/h
🌧️ Total precip: 2.38 mm
☀️ UV Index: 1.4
🌅 Sunrise: 06:12 AM
🌇 Sunset: 07:31 PM
🌙 Waning Crescent
🌑 Moon: 15% lit
Wed, Apr 15
Heavy rain
Heavy rain
22° / 19°
🌧️ 88% chance of rain
💧 Avg. humidity: 89%
💨 Max wind: 27 km/h
🌧️ Total precip: 27.53 mm
☀️ UV Index: 0.6
🌅 Sunrise: 06:11 AM
🌇 Sunset: 07:32 PM
🌙 Waning Crescent
🌑 Moon: 8% lit

Best Time to Visit Chicago Heights

Plan your trip to Chicago Heights, 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.
← Back to Chicago Heights 🗓 View Holidays 2026

Frequently Asked Questions

What is the current weather in Chicago Heights?
Current conditions in Chicago Heights: Overcast, temperature 18°C, humidity 88%.
What is the best time to visit Chicago Heights?
The best time to visit Chicago Heights is typically June – September. Warm, dry summers — ideal for outdoor activities.
What is the climate like in Chicago Heights?
Chicago Heights is located at approximately 41.5° latitude. It has a temperate climate with warm summers and cold winters.
Does it rain a lot in Chicago Heights?
The wettest period in Chicago Heights is typically during November – March. Cooler temperatures; some regions may experience rain or snow.
What should I pack for a trip to Chicago Heights?
For visits to Chicago Heights during June – September: light clothing and sun protection. For November – March: layers and a waterproof jacket are recommended.
What country is Chicago Heights in?
Chicago Heights is located in United States, in the state of Illinois.
What are the public holidays in Chicago Heights in 2026?
View the 2026 public holidays for Chicago Heights on our Holidays page.
What are the GPS coordinates used for the weather forecast in Chicago Heights?
The weather forecast for Chicago Heights uses coordinates 41.5063, -87.6357.