Weather forecast for tomorrow
Grafton, IL

Weather forecast for tomorrow

Sunday, May 18.

Mostly Sunny
5:44 am

8:11 pm
CDT
Mostly Sunny
77°F / 59°F
  • Wind: 7mph E
  • Humidity: 47%
  • Precip. probability: 13%
  • Precipitation: 0.28"
  • UV index: 9
On Sunday, in Grafton, a bright and mostly cloud-free sky is in store.
The chance of rainfall for tomorrow is low, and light precipitation is forecasted. Temperature is anticipated to swing from a high of a moderately hot 77°F to a low of a mild 59°F.
Tomorrow's top temperature is set to align with the common May high of 74.1°F.
Sunrise will be at 5:44 am and sunset at 8:11 pm; tomorrow's daylight will last for 14h and 28min.

Frequently asked questions

What is the weather forecast for Grafton for tomorrow?
On Sunday, in Grafton, a pleasant, mostly sunny outlook is in place.
Will it rain tomorrow?
Light precipitation of 0.28" is expected. The chance of rainfall is low at 13%.
What will be the highest temperature tomorrow?
Tomorrow, the highest temperature will be 77°F, while the lowest temperature will be 59°F.
Tomorrow, the highest temperature will be in line with the average maximum temperature in May. The lowest temperature tomorrow will be also in line with the average low temperature.
When is the sunrise / sunset tomorrow?
On Sunday, in Grafton, sunrise will be at 5:44 am and sunset at 8:11 pm (CDT).
How many hours of daylight will Grafton have tomorrow?
Tomorrow, the daylight will last for 14h and 28min.

Hourly weather forecast

12 am
  • 59°F
  • Feels like:
    59°F
Partly Cloudy
Partly Cloudy
  • Wind: 4mph NNW
  • Pressure: 29.88"Hg
  • Humidity: 67%
  • Precip. probability: 3%
  • Precipitation: 0"
  • Visibility: 10mi
2 am
  • 57°F
  • Feels like:
    55°F
Mostly Cloudy
Mostly Cloudy
  • Wind: 4mph N
  • Pressure: 29.91"Hg
  • Humidity: 73%
  • Precip. probability: 4%
  • Precipitation: 0"
  • Visibility: 10mi
4 am
  • 55°F
  • Feels like:
    54°F
Mostly Cloudy
Mostly Cloudy
  • Wind: 4mph N
  • Pressure: 29.94"Hg
  • Humidity: 74%
  • Precip. probability: 4%
  • Precipitation: 0"
  • Visibility: 10mi
Sunrise: 5:44 am
6 am
  • 54°F
  • Feels like:
    54°F
Mostly Cloudy
Mostly Cloudy
  • Wind: 4mph N
  • Pressure: 29.97"Hg
  • Humidity: 74%
  • Precip. probability: 16%
  • Precipitation: 0"
  • Visibility: 10mi
8 am
  • 59°F
  • Feels like:
    59°F
Partly Cloudy
Partly Cloudy
  • Wind: 4mph NE
  • Pressure: 29.97"Hg
  • Humidity: 65%
  • Precip. probability: 2%
  • Precipitation: 0"
  • Visibility: 10mi
10 am
  • 64°F
  • Feels like:
    64°F
Sunny
Sunny
  • Wind: 6mph ENE
  • Pressure: 29.97"Hg
  • Humidity: 51%
  • Precip. probability: 0%
  • Precipitation: 0"
  • Visibility: 10mi
12 pm
  • 70°F
  • Feels like:
    70°F
Mostly Sunny
Mostly Sunny
  • Wind: 4mph ENE
  • Pressure: 29.97"Hg
  • Humidity: 43%
  • Precip. probability: 0%
  • Precipitation: 0"
  • Visibility: 10mi
2 pm
  • 73°F
  • Feels like:
    73°F
Sunny
Sunny
  • Wind: 5mph ESE
  • Pressure: 29.94"Hg
  • Humidity: 39%
  • Precip. probability: 0%
  • Precipitation: 0"
  • Visibility: 10mi
4 pm
  • 75°F
  • Feels like:
    75°F
Mostly Sunny
Mostly Sunny
  • Wind: 6mph ESE
  • Pressure: 29.88"Hg
  • Humidity: 38%
  • Precip. probability: 0%
  • Precipitation: 0"
  • Visibility: 10mi
6 pm
  • 77°F
  • Feels like:
    77°F
Partly Cloudy
Partly Cloudy
  • Wind: 7mph ESE
  • Pressure: 29.85"Hg
  • Humidity: 39%
  • Precip. probability: 0%
  • Precipitation: 0"
  • Visibility: 10mi
8 pm
  • 72°F
  • Feels like:
    72°F
Partly Cloudy
Partly Cloudy
  • Wind: 7mph ESE
  • Pressure: 29.85"Hg
  • Humidity: 48%
  • Precip. probability: 3%
  • Precipitation: 0"
  • Visibility: 10mi
Sunset: 8:11 pm
10 pm
  • 68°F
  • Feels like:
    68°F
Cloudy
Cloudy
  • Wind: 7mph E
  • Pressure: 29.85"Hg
  • Humidity: 56%
  • Precip. probability: 2%
  • Precipitation: 0"
  • Visibility: 10mi
Tomorrow, on Sunday, a combination of cloudy, bright and rain-soaked weather is predicted.
With a 32% probability, minimal rainfall is expected around 11 pm.
The temperature will vary between the lowest temperature of 53.6°F and the highest temperature of 77°F. The warmest part of the day will be at 5 pm and 6 pm.
Tomorrow, the high temperature will be alike with May's average. Tomorrow, the temperature will drop to a level also consistent with May's average minimum of 56.8°F.
Updated: May 17, 2025 @ 12:14:25 UTC
Published by: Weather Atlas | About Us
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