Weather forecast for tomorrow
Port Byron, IL

Weather forecast for tomorrow

Monday, May 12.

Partly Cloudy
5:42 am

8:12 pm
CDT
Partly Cloudy
84°F / 61°F
  • Wind: 11mph E
  • Humidity: 44%
  • Precip. probability: 4%
  • Precipitation: 0"
  • UV index: 7
Tomorrow, moderate cloud cover will mix with sunshine throughout the day.
The temperature scale will run from a maximum of a warm 84.2°F to a minimum of a breezy 60.8°F.
The maximum heat index, which reflects the perceived temperature due to humidity levels, is evaluated at 84.2°F.
The forecast high of 84.2°F is more in line with June's average of 79°F than May's 70.3°F.
Sunrise will be at 5:42 am and sunset at 8:12 pm; tomorrow's daylight will last for 14h and 30min.

Frequently asked questions

What is the weather forecast for Port Byron for tomorrow?
On Monday, the sky will feature a blend of clouds and sunshine.
What will be the highest temperature tomorrow?
Tomorrow, the maximum temperature will be 84.2°F, while the minimum temperature will be 60.8°F. The maximum heat index, which calculates the temperature value influenced by the moisture in the air, is appraised at 84.2°F.
The maximum temperature will be uncommonly higher than the average highest temperature of 70.3°F in May. The lowest temperature will be slightly warmer than the average low of 53.4°F.
What time are sunrise and sunset tomorrow?
On Monday, in Port Byron, sunrise will be at 5:42 am and sunset at 8:12 pm (CDT).
How long will the day be tomorrow?
In Port Byron, tomorrow, there will be 14h and 30min of daylight.

Hourly weather forecast

12 am
  • 59°F
  • Feels like:
    59°F
Clear
Clear
  • Wind: 6mph ESE
  • Pressure: 30.09"Hg
  • Humidity: 56%
  • Precip. probability: 2%
  • Precipitation: 0"
  • Visibility: 10mi
2 am
  • 55°F
  • Feels like:
    55°F
Clear
Clear
  • Wind: 6mph ESE
  • Pressure: 30.06"Hg
  • Humidity: 63%
  • Precip. probability: 3%
  • Precipitation: 0"
  • Visibility: 10mi
4 am
  • 54°F
  • Feels like:
    54°F
Clear
Clear
  • Wind: 5mph ESE
  • Pressure: 30.06"Hg
  • Humidity: 69%
  • Precip. probability: 4%
  • Precipitation: 0"
  • Visibility: 10mi
Sunrise: 5:42 am
6 am
  • 54°F
  • Feels like:
    52°F
Partly Cloudy
Partly Cloudy
  • Wind: 6mph E
  • Pressure: 30.06"Hg
  • Humidity: 75%
  • Precip. probability: 6%
  • Precipitation: 0"
  • Visibility: 10mi
8 am
  • 61°F
  • Feels like:
    59°F
Partly Cloudy
Partly Cloudy
  • Wind: 6mph E
  • Pressure: 30.03"Hg
  • Humidity: 70%
  • Precip. probability: 3%
  • Precipitation: 0"
  • Visibility: 10mi
10 am
  • 70°F
  • Feels like:
    70°F
Partly Cloudy
Partly Cloudy
  • Wind: 7mph E
  • Pressure: 30"Hg
  • Humidity: 51%
  • Precip. probability: 0%
  • Precipitation: 0"
  • Visibility: 10mi
12 pm
  • 79°F
  • Feels like:
    79°F
Partly Cloudy
Partly Cloudy
  • Wind: 9mph E
  • Pressure: 29.94"Hg
  • Humidity: 38%
  • Precip. probability: 0%
  • Precipitation: 0"
  • Visibility: 10mi
2 pm
  • 82°F
  • Feels like:
    82°F
Partly Cloudy
Partly Cloudy
  • Wind: 11mph ESE
  • Pressure: 29.88"Hg
  • Humidity: 32%
  • Precip. probability: 0%
  • Precipitation: 0"
  • Visibility: 10mi
4 pm
  • 82°F
  • Feels like:
    82°F
Partly Cloudy
Partly Cloudy
  • Wind: 11mph ESE
  • Pressure: 29.83"Hg
  • Humidity: 29%
  • Precip. probability: 2%
  • Precipitation: 0"
  • Visibility: 10mi
6 pm
  • 81°F
  • Feels like:
    81°F
Mostly Cloudy
Mostly Cloudy
  • Wind: 11mph ESE
  • Pressure: 29.8"Hg
  • Humidity: 31%
  • Precip. probability: 0%
  • Precipitation: 0"
  • Visibility: 10mi
8 pm
  • 75°F
  • Feels like:
    75°F
Mostly Cloudy
Mostly Cloudy
  • Wind: 8mph ESE
  • Pressure: 29.8"Hg
  • Humidity: 45%
  • Precip. probability: 1%
  • Precipitation: 0"
  • Visibility: 10mi
Sunset: 8:12 pm
10 pm
  • 68°F
  • Feels like:
    68°F
Mostly Cloudy
Mostly Cloudy
  • Wind: 6mph ESE
  • Pressure: 29.83"Hg
  • Humidity: 61%
  • Precip. probability: 7%
  • Precipitation: 0"
  • Visibility: 10mi
Tomorrow, a combination of gloomy and clear weather is predicted.
The temperature will be between the lowest temperature of 53.6°F and the highest temperature of 82.4°F. The warmest part of the day will be from 2 pm to 5 pm.
The maximum temperature will be more close to June's average high of 79°F than May's 70.3°F. Forecast models suggest a low also more in line with June's typical minimum of 61.9°F than May's usual 53.4°F.
Updated: May 11, 2025 @ 10:41:53 UTC
Published by: Weather Atlas | About Us
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