Live Weather & Forecast

Weather in Mendota

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

Flag of United States
Partly cloudy
26°C
Feels like 26°C
79°F / Feels 80°F
Partly cloudy
Mendota, Illinois
🌞 Daytime
Updated: 2026-04-12 14:15
💧
Humidity
47%
💨
Wind
32.8 km/h SW
🌬️
Wind Gust
45.1 km/h
🌡️
Pressure
1012 mb
👁️
Visibility
16 km
☀️
UV Index
2.4 (Low)
🌧️
Precipitation
0 mm
☁️
Cloud Cover
50%
💦
Dew Point
16°C
🌐
Wind Degree
218°

Air Quality Index

US EPA: Good UK DEFRA: Low (1)
CO
159.9 μg/m³
NO₂
3.8 μg/m³
O₃
85 μg/m³
SO₂
1.4 μg/m³
PM 2.5
4.3 μg/m³
PM 10
4.5 μg/m³

Weather Alerts 3

Met · Moderate · Expected
Special Weather Statement issued April 12 at 1:25PM CDT by NWS Quad Cities IA IL

Strong south-southwesterly winds will continue this afternoon through the early evening hours, with occasional gusts as high as 45 mph. There are also some developing showers and a few isolated thunderstorms this afternoon that could help generate stronger wind gusts up to 50 mph. If traveling on east-to-west oriented roads, be prepared for gusty crosswinds, especially in high profile vehicles. S...

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...

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...

Today's Hourly Forecast

24-hour breakdown for Mendota, Illinois

12 AM
Clear
11°
Clear
💧 62% 💨 16.6 km/h
1 AM
Clear
10°
Clear
💧 68% 💨 16.2 km/h
2 AM
Clear
10°
Clear
💧 73% 💨 16.9 km/h
3 AM
Clear
10°
Clear
💧 75% 💨 18 km/h
4 AM
Clear
10°
Clear
💧 79% 💨 19.4 km/h
5 AM
Clear
10°
Clear
💧 85% 💨 22.3 km/h
6 AM
Clear
11°
Clear
💧 87% 💨 24.5 km/h
7 AM
Sunny
13°
Sunny
💧 89% 💨 24.8 km/h
8 AM
Sunny
15°
Sunny
💧 88% 💨 24.8 km/h
9 AM
Sunny
18°
Sunny
💧 80% 💨 26.6 km/h
10 AM
Sunny
21°
Sunny
💧 74% 💨 29.2 km/h
11 AM
Sunny
24°
Sunny
💧 66% 💨 31.3 km/h
12 PM
Sunny
26°
Sunny
💧 55% 💨 32.8 km/h
1 PM
Sunny
28°
Sunny
💧 47% 💨 34.6 km/h
2 PM
Partly cloudy
26°
Partly cloudy
💧 47% 💨 32.8 km/h
3 PM
Sunny
26°
Sunny
💧 47% 💨 27.7 km/h
4 PM
Overcast
24°
Overcast
💧 50% 💨 20.5 km/h
5 PM
Overcast
23°
Overcast
💧 70% 💨 11.5 km/h
6 PM
Overcast
20°
Overcast
💧 76% 💨 13 km/h
7 PM
Moderate rain
19°
Moderate rain
💧 96% 💨 22 km/h 🌧️ 100%
8 PM
Overcast
18°
Overcast
💧 97% 💨 29.5 km/h
9 PM
Overcast
18°
Overcast
💧 97% 💨 32 km/h
10 PM
Moderate rain
17°
Moderate rain
💧 91% 💨 31 km/h 🌧️ 100%
11 PM
Overcast
17°
Overcast
💧 97% 💨 25.9 km/h

3-Day Forecast

Daily overview for Mendota, Illinois

Today
Moderate rain
Moderate rain
29° / 10°
🌧️ 80% chance of rain
💧 Avg. humidity: 75%
💨 Max wind: 34.6 km/h
🌧️ Total precip: 8.74 mm
☀️ UV Index: 0.9
🌅 Sunrise: 06:21 AM
🌇 Sunset: 07:34 PM
🌙 Waning Crescent
🌑 Moon: 33% lit
Mon, Apr 13
Moderate rain
Moderate rain
24° / 16°
🌧️ 69% chance of rain
💧 Avg. humidity: 91%
💨 Max wind: 28.1 km/h
🌧️ Total precip: 14.98 mm
☀️ UV Index: 1
🌅 Sunrise: 06:19 AM
🌇 Sunset: 07:35 PM
🌙 Waning Crescent
🌑 Moon: 23% lit
Tue, Apr 14
Thundery outbreaks in nearby
Thundery outbreaks in nearby
25° / 19°
🌧️ 0% chance of rain
💧 Avg. humidity: 89%
💨 Max wind: 36.7 km/h
🌧️ Total precip: 0 mm
☀️ UV Index: 0.9
🌅 Sunrise: 06:18 AM
🌇 Sunset: 07:36 PM
🌙 Waning Crescent
🌑 Moon: 15% lit

Best Time to Visit Mendota

Plan your trip to Mendota, 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 Mendota 🗓 View Holidays 2026

Frequently Asked Questions

What is the current weather in Mendota?
Current conditions in Mendota: Partly cloudy, temperature 26°C, humidity 47%.
What is the best time to visit Mendota?
The best time to visit Mendota is typically June – September. Warm, dry summers — ideal for outdoor activities.
What is the climate like in Mendota?
Mendota is located at approximately 41.5° latitude. It has a temperate climate with warm summers and cold winters.
Does it rain a lot in Mendota?
The wettest period in Mendota is typically during November – March. Cooler temperatures; some regions may experience rain or snow.
What should I pack for a trip to Mendota?
For visits to Mendota during June – September: light clothing and sun protection. For November – March: layers and a waterproof jacket are recommended.
What country is Mendota in?
Mendota is located in United States, in the state of Illinois.
What are the public holidays in Mendota in 2026?
View the 2026 public holidays for Mendota on our Holidays page.
What are the GPS coordinates used for the weather forecast in Mendota?
The weather forecast for Mendota uses coordinates 41.5473, -89.1176.