Live Weather & Forecast

Weather in Westmont

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

Flag of United States
Partly cloudy
16°C
Feels like 16°C
61°F / Feels 61°F
Partly cloudy
Westmont, Illinois
🌙 Nighttime
Updated: 2026-04-12 05:00
💧
Humidity
75%
💨
Wind
17.6 km/h SW
🌬️
Wind Gust
26.2 km/h
🌡️
Pressure
1014 mb
👁️
Visibility
16 km
☀️
UV Index
0 (Low)
🌧️
Precipitation
0 mm
☁️
Cloud Cover
75%
💦
Dew Point
11.3°C
🌐
Wind Degree
215°

Air Quality Index

US EPA: Good UK DEFRA: Low (1)
CO
150.9 μg/m³
NO₂
11.1 μg/m³
O₃
84 μg/m³
SO₂
8.2 μg/m³
PM 2.5
8.5 μg/m³
PM 10
10.4 μg/m³

Weather Alerts 3

Met · Moderate · Expected
Winter Weather Advisory issued April 11 at 12:19PM PDT until April 13 at 11:00AM PDT by NWS Los Angeles/Oxnard CA

* WHAT...Wet snow expected. Total snow accumulations up to around 6 inches above 6000 feet. Winds gusting as high as 45 mph. * WHERE...Eastern San Gabriel Mountains, Interstate 5 Corridor, and Western San Gabriel Mountains and Highway 14 Corridor. * WHEN...From 3 AM Sunday to 11 AM PDT Monday. * IMPACTS...The hazardous conditions could impact the Monday morning commute. Gusty winds could bring...

Slow down and use caution while traveling. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1.

Effective: 2026-04-11T12:19:00-07:00  ·  Expires: 2026-04-12T06:00:00-07:00
Met · Moderate · Expected
Winter Weather Advisory issued April 11 at 8:36PM PDT until April 13 at 11:00AM PDT by NWS Los Angeles/Oxnard CA

* WHAT...Wet snow expected. Total snow accumulations up to around 6 inches above 6000 feet. Winds gusting as high as 45 mph. * WHERE...Eastern San Gabriel Mountains, Interstate 5 Corridor, and Western San Gabriel Mountains and Highway 14 Corridor. * WHEN...From 3 AM Sunday to 11 AM PDT Monday. * IMPACTS...The hazardous conditions could impact the Monday morning commute. Gusty winds could bring...

Slow down and use caution while traveling. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1.

Effective: 2026-04-11T20:36:00-07:00  ·  Expires: 2026-04-12T11:00:00-07:00
Met · Moderate · Expected
Wind Advisory issued April 11 at 7:00PM PDT until April 12 at 10:00PM PDT by NWS Los Angeles/Oxnard CA

* WHAT...Southwest winds 20 to 30 mph with gusts up to 45 mph expected. Isolated gusts to around 55 mph near Lake Palmdale. * WHERE...Antelope Valley Foothills. * WHEN...From 3 AM to 10 PM PDT Sunday. * IMPACTS...Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result.

Winds this strong can make driving difficult, especially for high profile vehicles. Use extra caution.

Effective: 2026-04-11T19:00:00-07:00  ·  Expires: 2026-04-12T07:00:00-07:00

Today's Hourly Forecast

24-hour breakdown for Westmont, Illinois

12 AM
Partly Cloudy
15°
Partly Cloudy
💧 84% 💨 12.2 km/h
1 AM
Patchy light rain
14°
Patchy light rain
💧 89% 💨 13.7 km/h 🌧️ 100%
2 AM
Clear
14°
Clear
💧 90% 💨 15.1 km/h
3 AM
Clear
14°
Clear
💧 89% 💨 15.8 km/h
4 AM
Clear
13°
Clear
💧 89% 💨 16.6 km/h
5 AM
Partly cloudy
16°
Partly cloudy
💧 75% 💨 17.6 km/h
6 AM
Partly Cloudy
14°
Partly Cloudy
💧 91% 💨 18.4 km/h
7 AM
Sunny
14°
Sunny
💧 89% 💨 16.2 km/h
8 AM
Patchy rain nearby
15°
Patchy rain nearby
💧 84% 💨 14 km/h 🌧️ 80%
9 AM
Patchy light drizzle
14°
Patchy light drizzle
💧 86% 💨 13 km/h 🌧️ 100%
10 AM
Moderate rain
15°
Moderate rain
💧 90% 💨 13.7 km/h 🌧️ 100%
11 AM
Patchy rain nearby
16°
Patchy rain nearby
💧 83% 💨 15.5 km/h 🌧️ 78%
12 PM
Patchy rain nearby
17°
Patchy rain nearby
💧 70% 💨 19.8 km/h 🌧️ 89%
1 PM
Patchy rain nearby
17°
Patchy rain nearby
💧 71% 💨 22.7 km/h 🌧️ 67%
2 PM
Sunny
18°
Sunny
💧 67% 💨 23.4 km/h
3 PM
Sunny
18°
Sunny
💧 60% 💨 24.5 km/h
4 PM
Sunny
17°
Sunny
💧 60% 💨 24.5 km/h
5 PM
Sunny
17°
Sunny
💧 66% 💨 22 km/h
6 PM
Sunny
17°
Sunny
💧 66% 💨 20.9 km/h
7 PM
Sunny
15°
Sunny
💧 69% 💨 20.9 km/h
8 PM
Clear
15°
Clear
💧 74% 💨 18.7 km/h
9 PM
Clear
15°
Clear
💧 73% 💨 17.3 km/h
10 PM
Partly Cloudy
15°
Partly Cloudy
💧 74% 💨 16.2 km/h
11 PM
Clear
14°
Clear
💧 59% 💨 15.1 km/h

3-Day Forecast

Daily overview for Westmont, Illinois

Today
Moderate rain
Moderate rain
19° / 13°
🌧️ 89% chance of rain
💧 Avg. humidity: 78%
💨 Max wind: 24.5 km/h
🌧️ Total precip: 8.6 mm
☀️ UV Index: 1.6
🌅 Sunrise: 06:26 AM
🌇 Sunset: 07:23 PM
🌙 Waning Crescent
🌑 Moon: 33% lit
Mon, Apr 13
Cloudy
Cloudy
16° / 13°
🌧️ 0% chance of rain
💧 Avg. humidity: 72%
💨 Max wind: 24.8 km/h
🌧️ Total precip: 0 mm
☀️ UV Index: 1.5
🌅 Sunrise: 06:25 AM
🌇 Sunset: 07:24 PM
🌙 Waning Crescent
🌑 Moon: 23% lit
Tue, Apr 14
Sunny
Sunny
21° / 12°
🌧️ 0% chance of rain
💧 Avg. humidity: 71%
💨 Max wind: 20.2 km/h
🌧️ Total precip: 0 mm
☀️ UV Index: 1.8
🌅 Sunrise: 06:23 AM
🌇 Sunset: 07:24 PM
🌙 Waning Crescent
🌑 Moon: 15% lit

Best Time to Visit Westmont

Plan your trip to Westmont, 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 Westmont 🗓 View Holidays 2026

Frequently Asked Questions

What is the current weather in Westmont?
Current conditions in Westmont: Partly cloudy, temperature 16°C, humidity 75%.
What is the best time to visit Westmont?
The best time to visit Westmont is typically June – September. Warm, dry summers — ideal for outdoor activities.
What is the climate like in Westmont?
Westmont is located at approximately 33.9° latitude. It has a temperate climate with warm summers and cold winters.
Does it rain a lot in Westmont?
The wettest period in Westmont is typically during November – March. Cooler temperatures; some regions may experience rain or snow.
What should I pack for a trip to Westmont?
For visits to Westmont during June – September: light clothing and sun protection. For November – March: layers and a waterproof jacket are recommended.
What country is Westmont in?
Westmont is located in United States, in the state of Illinois.
What are the public holidays in Westmont in 2026?
View the 2026 public holidays for Westmont on our Holidays page.
What are the GPS coordinates used for the weather forecast in Westmont?
The weather forecast for Westmont uses coordinates 33.9414, -118.3023.