Live Weather & Forecast

Weather in Mundelein

Q: What is the current weather in Mundelein?

Current conditions in Mundelein: Overcast, temperature 18°C, humidity 90%.

Q: What is the best time to visit Mundelein?

The best time to visit Mundelein is typically June – September. Warm, dry summers — ideal for outdoor activities.

Q: What are the GPS coordinates used for the weather forecast in Mundelein?

The weather forecast for Mundelein uses coordinates 42.2631, -88.004.

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

18^°C

Feels like 18°C

65°F / Feels 65°F

Overcast

Mundelein, Illinois

🌞 Daytime

Updated: 2026-04-13 07:15

💧

Humidity

90%

💨

Wind

17.6 km/h SW

🌬️

Wind Gust

28 km/h

🌡️

Pressure

1012 mb

👁️

Visibility

16 km

☀️

UV Index

0.1 (Low)

🌧️

Precipitation

0 mm

☁️

Cloud Cover

100%

💦

Dew Point

16.1°C

🌐

Wind Degree

227°

Air Quality Index

US EPA: Good UK DEFRA: Low (1)

166.9 μg/m³

NO₂

9.7 μg/m³

O₃

67 μg/m³

SO₂

2 μg/m³

PM 2.5

10.5 μg/m³

PM 10

11.1 μg/m³

Weather Alerts 2

Met · Severe · Immediate

Flood Warning issued April 12 at 10:46AM CDT until April 14 at 7:00PM CDT by NWS Chicago IL

...The Flood Warning continues for the following rivers in Illinois... Fox River at Algonquin Lock & Dam tailwater affecting Kane, McHenry and Lake IL Counties. For the Fox River (Illinois)...including Algonquin Lock & Dam tailwater...Minor flooding is occurring. * WHAT...Minor flooding is occurring and minor flooding is forecast. * WHERE...Fox River from Johnsburg downstream to Red Gate Road...

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...

Effective: 2026-04-12T10:46:00-05:00 · Expires: 2026-04-13T05:00:00-05:00

Met · Severe · Immediate

Flood Warning issued April 12 at 9:04PM CDT until April 14 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...Fox River from Johnsburg downstream to Red Gate Road in St. Charles, including th...

Effective: 2026-04-12T21:04:00-05:00 · Expires: 2026-04-13T15:15:00-05:00

Today's Hourly Forecast

24-hour breakdown for Mundelein, Illinois

12 AM

17°

Patchy light rain

💧 89% 💨 25.9 km/h 🌧️ 100%

1 AM

17°

Overcast

💧 88% 💨 23.8 km/h

2 AM

17°

Partly Cloudy

💧 90% 💨 23.8 km/h

3 AM

17°

Patchy rain nearby

💧 92% 💨 23 km/h 🌧️ 85%

4 AM

17°

Patchy rain nearby

💧 93% 💨 21.6 km/h 🌧️ 85%

5 AM

17°

Cloudy

💧 92% 💨 22.3 km/h

6 AM

17°

Cloudy

💧 91% 💨 20.9 km/h

7 AM

18°

Overcast

💧 90% 💨 17.6 km/h

8 AM

19°

Partly Cloudy

💧 90% 💨 17.3 km/h

9 AM

19°

Overcast

💧 90% 💨 18.7 km/h

10 AM

20°

Overcast

💧 90% 💨 21.2 km/h

11 AM

21°

Overcast

💧 90% 💨 20.5 km/h

12 PM

22°

Partly Cloudy

💧 86% 💨 20.2 km/h

1 PM

22°

Overcast

💧 83% 💨 20.9 km/h

2 PM

23°

Overcast

💧 87% 💨 19.4 km/h

3 PM

21°

Patchy rain nearby

💧 81% 💨 22.7 km/h 🌧️ 79%

4 PM

21°

Patchy light drizzle

💧 79% 💨 20.9 km/h 🌧️ 100%

5 PM

21°

Patchy rain nearby

💧 76% 💨 20.9 km/h 🌧️ 100%

6 PM

21°

Thundery outbreaks in nearby

💧 89% 💨 21.2 km/h

7 PM

21°

Thundery outbreaks in nearby

💧 92% 💨 24.8 km/h

8 PM

21°

Thundery outbreaks in nearby

💧 88% 💨 26.6 km/h

9 PM

21°

Thundery outbreaks in nearby

💧 89% 💨 26.6 km/h

10 PM

21°

Thundery outbreaks in nearby

💧 92% 💨 25.2 km/h

11 PM

20°

Overcast

💧 93% 💨 25.9 km/h

3-Day Forecast

Daily overview for Mundelein, Illinois

Today

Patchy rain nearby

24° / 16°

🌧️ 88% chance of rain

💧 Avg. humidity: 88%

💨 Max wind: 26.6 km/h

🌧️ Total precip: 2.51 mm

☀️ UV Index: 0.9

🌅 Sunrise: 06:14 AM

🌇 Sunset: 07:32 PM

🌙 Waning Crescent

🌑 Moon: 23% lit

Tue, Apr 14

Patchy rain nearby

26° / 20°

🌧️ 82% chance of rain

💧 Avg. humidity: 89%

💨 Max wind: 30.2 km/h

🌧️ Total precip: 2.13 mm

☀️ UV Index: 1.2

🌅 Sunrise: 06:12 AM

🌇 Sunset: 07:33 PM

🌙 Waning Crescent

🌑 Moon: 15% lit

Wed, Apr 15

Moderate rain

24° / 19°

🌧️ 84% chance of rain

💧 Avg. humidity: 86%

💨 Max wind: 27.7 km/h

🌧️ Total precip: 11.27 mm

☀️ UV Index: 0.5

🌅 Sunrise: 06:11 AM

🌇 Sunset: 07:34 PM

🌙 Waning Crescent

🌑 Moon: 8% lit

Best Time to Visit Mundelein

Plan your trip to Mundelein, 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 Mundelein 🗓 View Holidays 2026

Frequently Asked Questions

What is the current weather in Mundelein?

Current conditions in Mundelein: Overcast, temperature 18°C, humidity 90%.

What is the best time to visit Mundelein?

The best time to visit Mundelein is typically June – September. Warm, dry summers — ideal for outdoor activities.

What is the climate like in Mundelein?

Mundelein is located at approximately 42.3° latitude. It has a temperate climate with warm summers and cold winters.

Does it rain a lot in Mundelein?

The wettest period in Mundelein is typically during November – March. Cooler temperatures; some regions may experience rain or snow.

What should I pack for a trip to Mundelein?

For visits to Mundelein during June – September: light clothing and sun protection. For November – March: layers and a waterproof jacket are recommended.

What country is Mundelein in?

Mundelein is located in United States, in the state of Illinois.

What are the public holidays in Mundelein in 2026?

View the 2026 public holidays for Mundelein on our Holidays page.

What are the GPS coordinates used for the weather forecast in Mundelein?

The weather forecast for Mundelein uses coordinates 42.2631, -88.004.