Live Weather & Forecast

Weather in Buffalo Grove

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

Flag of United States
Partly cloudy
26°C
Feels like 27°C
79°F / Feels 80°F
Partly cloudy
Buffalo Grove, Illinois
🌞 Daytime
Updated: 2026-04-12 14:15
💧
Humidity
47%
💨
Wind
27.4 km/h SW
🌬️
Wind Gust
37.5 km/h
🌡️
Pressure
1012 mb
👁️
Visibility
16 km
☀️
UV Index
2.6 (Low)
🌧️
Precipitation
0 mm
☁️
Cloud Cover
50%
💦
Dew Point
15.3°C
🌐
Wind Degree
220°

Air Quality Index

US EPA: Good UK DEFRA: Low (1)
CO
196.9 μg/m³
NO₂
13.6 μg/m³
O₃
91 μg/m³
SO₂
3.5 μg/m³
PM 2.5
8.3 μg/m³
PM 10
8.5 μg/m³

Weather Alerts 3

Met · Severe · Immediate
Flood Warning issued April 11 at 9:24PM CDT until April 14 at 7:00PM CDT by NWS Chicago IL

...The Flood Warning continues for the following rivers in Illinois...Indiana... Fox River at Algonquin Lock & Dam tailwater affecting Lake IL, McHenry and Kane Counties. Kankakee River at Dunns Bridge affecting Jasper and Porter Counties. Kankakee River at Shelby affecting Newton and Lake IN Counties. ...The Flood Warning is extended for the following rivers in Illinois... Des Plaines River...

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: 2026-04-11T21:24:00-05:00  ·  Expires: 2026-04-12T15:30:00-05:00
Met · Severe · Immediate
Flood Warning issued April 11 at 9:24PM CDT until April 14 at 7:00PM CDT by NWS Chicago IL

...The Flood Warning continues for the following rivers in Illinois...Indiana... Fox River at Algonquin Lock & Dam tailwater affecting Lake IL, McHenry and Kane Counties. Kankakee River at Dunns Bridge affecting Jasper and Porter Counties. Kankakee River at Shelby affecting Newton and Lake IN Counties. ...The Flood Warning is extended for the following rivers in Illinois... Des Plaines River...

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: 2026-04-11T21:24:00-05:00  ·  Expires: 2026-04-12T15:30:00-05:00
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

Today's Hourly Forecast

24-hour breakdown for Buffalo Grove, Illinois

12 AM
Clear
10°
Clear
💧 64% 💨 14.8 km/h
1 AM
Clear
10°
Clear
💧 64% 💨 13.7 km/h
2 AM
Clear
10°
Clear
💧 65% 💨 13.3 km/h
3 AM
Clear
10°
Clear
💧 66% 💨 13.3 km/h
4 AM
Clear
11°
Clear
💧 67% 💨 14.8 km/h
5 AM
Clear
11°
Clear
💧 76% 💨 16.2 km/h
6 AM
Clear
12°
Clear
💧 82% 💨 16.6 km/h
7 AM
Sunny
14°
Sunny
💧 83% 💨 19.4 km/h
8 AM
Sunny
16°
Sunny
💧 76% 💨 20.5 km/h
9 AM
Sunny
18°
Sunny
💧 70% 💨 21.2 km/h
10 AM
Sunny
22°
Sunny
💧 63% 💨 20.5 km/h
11 AM
Sunny
25°
Sunny
💧 59% 💨 24.5 km/h
12 PM
Sunny
27°
Sunny
💧 55% 💨 24.8 km/h
1 PM
Sunny
27°
Sunny
💧 50% 💨 27 km/h
2 PM
Partly cloudy
26°
Partly cloudy
💧 47% 💨 27.4 km/h
3 PM
Sunny
28°
Sunny
💧 45% 💨 27.4 km/h
4 PM
Sunny
26°
Sunny
💧 49% 💨 28.4 km/h
5 PM
Overcast
24°
Overcast
💧 64% 💨 24.1 km/h
6 PM
Overcast
21°
Overcast
💧 67% 💨 19.1 km/h
7 PM
Light rain
20°
Light rain
💧 95% 💨 15.1 km/h 🌧️ 100%
8 PM
Overcast
19°
Overcast
💧 86% 💨 16.6 km/h
9 PM
Overcast
19°
Overcast
💧 94% 💨 22.3 km/h
10 PM
Heavy rain
18°
Heavy rain
💧 92% 💨 24.5 km/h 🌧️ 100%
11 PM
Overcast
17°
Overcast
💧 95% 💨 28.4 km/h

3-Day Forecast

Daily overview for Buffalo Grove, Illinois

Today
Moderate rain
Moderate rain
29° / 10°
🌧️ 82% chance of rain
💧 Avg. humidity: 70%
💨 Max wind: 28.4 km/h
🌧️ Total precip: 10.76 mm
☀️ UV Index: 1
🌅 Sunrise: 06:16 AM
🌇 Sunset: 07:30 PM
🌙 Waning Crescent
🌑 Moon: 33% lit
Mon, Apr 13
Moderate rain
Moderate rain
23° / 16°
🌧️ 73% chance of rain
💧 Avg. humidity: 87%
💨 Max wind: 27 km/h
🌧️ Total precip: 14.74 mm
☀️ UV Index: 1.2
🌅 Sunrise: 06:14 AM
🌇 Sunset: 07:31 PM
🌙 Waning Crescent
🌑 Moon: 23% lit
Tue, Apr 14
Thundery outbreaks in nearby
Thundery outbreaks in nearby
26° / 19°
🌧️ 0% chance of rain
💧 Avg. humidity: 86%
💨 Max wind: 27.4 km/h
🌧️ Total precip: 0 mm
☀️ UV Index: 0.9
🌅 Sunrise: 06:12 AM
🌇 Sunset: 07:33 PM
🌙 Waning Crescent
🌑 Moon: 15% lit

Best Time to Visit Buffalo Grove

Plan your trip to Buffalo Grove, 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 Buffalo Grove 🗓 View Holidays 2026

Frequently Asked Questions

What is the current weather in Buffalo Grove?
Current conditions in Buffalo Grove: Partly cloudy, temperature 26°C, humidity 47%.
What is the best time to visit Buffalo Grove?
The best time to visit Buffalo Grove is typically June – September. Warm, dry summers — ideal for outdoor activities.
What is the climate like in Buffalo Grove?
Buffalo Grove is located at approximately 42.2° latitude. It has a temperate climate with warm summers and cold winters.
Does it rain a lot in Buffalo Grove?
The wettest period in Buffalo Grove is typically during November – March. Cooler temperatures; some regions may experience rain or snow.
What should I pack for a trip to Buffalo Grove?
For visits to Buffalo Grove during June – September: light clothing and sun protection. For November – March: layers and a waterproof jacket are recommended.
What country is Buffalo Grove in?
Buffalo Grove is located in United States, in the state of Illinois.
What are the public holidays in Buffalo Grove in 2026?
View the 2026 public holidays for Buffalo Grove on our Holidays page.
What are the GPS coordinates used for the weather forecast in Buffalo Grove?
The weather forecast for Buffalo Grove uses coordinates 42.1544, -87.959.