Live Weather & Forecast
Weather in Grafton
Wisconsin, United States · Real-time conditions & 3-day outlook
18°C
Feels like 18°C
65°F / Feels 65°F
Light rain
Grafton, Wisconsin
🌞 Daytime
Updated: 2026-04-12 19:15
Humidity
100%
Wind
27.4 km/h SW
Wind Gust
49.8 km/h
Pressure
1008 mb
Visibility
16 km
UV Index
0
(Low)
Precipitation
0.25 mm
Cloud Cover
100%
Dew Point
19.2°C
Wind Degree
228°
Air Quality Index
US EPA: Good
UK DEFRA: Low (1)
CO
150.9 μg/m³
NO₂
4.9 μg/m³
O₃
77 μg/m³
SO₂
1.3 μg/m³
PM 2.5
3.2 μg/m³
PM 10
3.2 μg/m³
Today's Hourly Forecast
24-hour breakdown for Grafton, Wisconsin
12 AM
6°
Patchy rain nearby
1 AM
7°
Moderate rain at times
2 AM
7°
Moderate or heavy rain shower
3 AM
6°
Patchy rain nearby
4 AM
6°
Patchy rain nearby
5 AM
6°
Clear
6 AM
7°
Clear
7 AM
10°
Sunny
8 AM
12°
Patchy rain nearby
9 AM
14°
Sunny
10 AM
16°
Patchy rain nearby
11 AM
19°
Patchy rain nearby
12 PM
20°
Moderate rain at times
1 PM
22°
Sunny
2 PM
23°
Sunny
3 PM
24°
Sunny
4 PM
24°
Sunny
5 PM
24°
Sunny
6 PM
23°
Sunny
7 PM
18°
Light rain
8 PM
19°
Moderate rain at times
9 PM
18°
Moderate or heavy rain shower
10 PM
17°
Patchy rain nearby
11 PM
16°
Patchy rain nearby
3-Day Forecast
Daily overview for Grafton, Wisconsin
Today
Moderate rain
25°
/
6°
🌧️ 89% chance of rain
💧 Avg. humidity: 83%
💨 Max wind: 37.4 km/h
🌧️ Total precip: 19.76 mm
☀️ UV Index: 0.8
🌅 Sunrise: 06:14 AM
🌇 Sunset: 07:32 PM
🌙 Waning Crescent
🌑 Moon: 33% lit
Mon, Apr 13
Patchy rain nearby
23°
/
15°
🌧️ 87% chance of rain
💧 Avg. humidity: 89%
💨 Max wind: 29.9 km/h
🌧️ Total precip: 4.12 mm
☀️ UV Index: 1.6
🌅 Sunrise: 06:12 AM
🌇 Sunset: 07:33 PM
🌙 Waning Crescent
🌑 Moon: 23% lit
Tue, Apr 14
Moderate rain
20°
/
6°
🌧️ 86% chance of rain
💧 Avg. humidity: 94%
💨 Max wind: 32 km/h
🌧️ Total precip: 17.23 mm
☀️ UV Index: 1.1
🌅 Sunrise: 06:11 AM
🌇 Sunset: 07:34 PM
🌙 Waning Crescent
🌑 Moon: 15% lit
Best Time to Visit Grafton
Plan your trip to Grafton, 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.
Frequently Asked Questions
What is the current weather in Grafton?
Current conditions in Grafton: Light rain, temperature 18°C, humidity 100%.
What is the best time to visit Grafton?
The best time to visit Grafton is typically June – September. Warm, dry summers — ideal for outdoor activities.
What is the climate like in Grafton?
Grafton is located at approximately 43.3° latitude. It has a temperate climate with warm summers and cold winters.
Does it rain a lot in Grafton?
The wettest period in Grafton is typically during November – March. Cooler temperatures; some regions may experience rain or snow.
What should I pack for a trip to Grafton?
For visits to Grafton during June – September: light clothing and sun protection. For November – March: layers and a waterproof jacket are recommended.
What country is Grafton in?
Grafton is located in United States, in the state of Wisconsin.
What are the public holidays in Grafton in 2026?
View the 2026 public holidays for Grafton on our Holidays page.
What are the GPS coordinates used for the weather forecast in Grafton?
The weather forecast for Grafton uses coordinates 43.3195, -87.9518.