Weather forecast for todayPort Byron, IL
Weather forecast for today
Current condition 7:37 am CDT
- 43°F
- Feels like:43°F
Sunny
- Precipitation: 0"
- Wind: 3mphE 100°
- Humidity: 81%
- Dewpoint: 37°F
- Pressure: 30.39"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
Currently, the sun is shining brightly, creating a warm atmosphere.
The temperature is a chilly 42.8°F. The current temperature is almost at the minimum-predicted 41°F for today.
The temperature is a chilly 42.8°F. The current temperature is almost at the minimum-predicted 41°F for today.
Monday Oct 19, 2026
- 70°F
- 41°F
Mostly Sunny
- Precip. probability: 2%
- Precipitation: 0"
- Wind: 4mphSSE 165°
- Humidity: 55%
- UV index: 4
- Sunrise: 7:18 am CDT
- Sunset: 6:14 pm CDT
- details ▼
On Monday, in Port Byron, predominantly sunny weather will make for pleasant outdoor conditions.
A notable disparity in temperature is predicted, reaching up to a maximum of a pleasant 69.8°F and falling to a minimum of a cold 41°F.
The expected high of 69.8°F appears seasonally off, better matching September's typical values.
Sunrise was at 7:18 am and sunset will be at 6:14 pm; the daylight will last for 10h and 56min.
A notable disparity in temperature is predicted, reaching up to a maximum of a pleasant 69.8°F and falling to a minimum of a cold 41°F.
The expected high of 69.8°F appears seasonally off, better matching September's typical values.
Sunrise was at 7:18 am and sunset will be at 6:14 pm; the daylight will last for 10h and 56min.
Hourly overview
Hourly temperatures
Warmest period: 2 pm - 4 pm 68°C.
Coldest hour: 8 am 43°C.
Coldest hour: 8 am 43°C.
Chance of precipitation
Highest chance: 10 pm - 12 am 3%.
Hourly weather forecast
- 8 am
- 43°F
- Feels like:43°F
Sunny
- Precip. probability: 2%
- Precipitation: 0"
- Wind: 3mphS 176°
- Humidity: 82%
- Pressure: 30.39"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 9 am
- 48°F
- Feels like:48°F
Sunny
- Precip. probability: 2%
- Precipitation: 0"
- Wind: 3mphS 171°
- Humidity: 74%
- Pressure: 30.39"Hg
- Visibility: 10mi
- UV index: 1
- details ▼
- 10 am
- 54°F
- Feels like:54°F
Sunny
- Precip. probability: 1%
- Precipitation: 0"
- Wind: 4mphS 170°
- Humidity: 61%
- Pressure: 30.39"Hg
- Visibility: 10mi
- UV index: 2
- details ▼
- 11 am
- 59°F
- Feels like:59°F
Mostly Sunny
- Precip. probability: 1%
- Precipitation: 0"
- Wind: 4mphS 172°
- Humidity: 55%
- Pressure: 30.36"Hg
- Visibility: 10mi
- UV index: 3
- details ▼
- 12 pm
- 63°F
- Feels like:63°F
Partly Cloudy
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 4mphS 173°
- Humidity: 47%
- Pressure: 30.36"Hg
- Visibility: 10mi
- UV index: 4
- details ▼
- 1 pm
- 66°F
- Feels like:66°F
Partly Cloudy
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 4mphSSE 161°
- Humidity: 43%
- Pressure: 30.33"Hg
- Visibility: 10mi
- UV index: 4
- details ▼
- 2 pm
- 68°F
- Feels like:68°F
Partly Cloudy
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 4mphSSE 166°
- Humidity: 39%
- Pressure: 30.33"Hg
- Visibility: 10mi
- UV index: 3
- details ▼
- 3 pm
- 68°F
- Feels like:68°F
Partly Cloudy
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 4mphSSE 166°
- Humidity: 38%
- Pressure: 30.3"Hg
- Visibility: 10mi
- UV index: 2
- details ▼
- 4 pm
- 68°F
- Feels like:68°F
Mostly Cloudy
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 4mphSSE 164°
- Humidity: 38%
- Pressure: 30.3"Hg
- Visibility: 10mi
- UV index: 1
- details ▼
- 5 pm
- 66°F
- Feels like:66°F
Mostly Cloudy
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 4mphSSE 156°
- Humidity: 41%
- Pressure: 30.3"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 6 pm
- 63°F
- Feels like:63°F
Partly Cloudy
- Precip. probability: 1%
- Precipitation: 0"
- Wind: 3mphSE 135°
- Humidity: 50%
- Pressure: 30.3"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
Sunset: 6:14 pm
- 7 pm
- 57°F
- Feels like:57°F
Partly Cloudy
- Precip. probability: 1%
- Precipitation: 0"
- Wind: 2mphSE 126°
- Humidity: 60%
- Pressure: 30.3"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 8 pm
- 54°F
- Feels like:54°F
Partly Cloudy
- Precip. probability: 2%
- Precipitation: 0"
- Wind: 2mphESE 120°
- Humidity: 69%
- Pressure: 30.3"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 9 pm
- 52°F
- Feels like:52°F
Mostly Cloudy
- Precip. probability: 2%
- Precipitation: 0"
- Wind: 2mphESE 122°
- Humidity: 72%
- Pressure: 30.33"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 10 pm
- 50°F
- Feels like:50°F
Mostly Cloudy
- Precip. probability: 3%
- Precipitation: 0"
- Wind: 2mphESE 118°
- Humidity: 77%
- Pressure: 30.33"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 11 pm
- 50°F
- Feels like:50°F
Partly Cloudy
- Precip. probability: 3%
- Precipitation: 0"
- Wind: 2mphESE 117°
- Humidity: 78%
- Pressure: 30.33"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
Today, in Port Byron, primarily dull and occasionally sunny weather is forecasted.
The temperature will be between a minimum of 42.8°F and a maximum of 68°F. The warmest part of the day will be from 2 pm to 4 pm.
The temperature will feel more consistent with September's average high than the expected maximum for October. The lowest temperature is expected to be a couple of degrees lower than the average minimum in October, typically 45°F.
The temperature will be between a minimum of 42.8°F and a maximum of 68°F. The warmest part of the day will be from 2 pm to 4 pm.
The temperature will feel more consistent with September's average high than the expected maximum for October. The lowest temperature is expected to be a couple of degrees lower than the average minimum in October, typically 45°F.
Updated: Oct 19, 2026 @ 12:37:20 UTC
Published by: Weather Atlas | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate
Published by: Weather Atlas | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate
Frequently asked questions
At 7:37 am CDT, the temperature is 42.8°F.
Today, expect brilliant sunshine under mostly clear skies.
Today, the maximum temperature will be 69.8°F, while the minimum temperature will be 41°F.
The highest temperature will be relatively higher than the average maximum of 61.3°F in October. The lowest temperature will be also relatively lower than the average low of 45°F.
The highest temperature will be relatively higher than the average maximum of 61.3°F in October. The lowest temperature will be also relatively lower than the average low of 45°F.
On Monday, in Port Byron, sunrise was at 7:18 am and sunset will be at 6:14 pm (CDT).
In Port Byron, today, there will be 10h and 56min of daylight.
Port Byron, Illinois, USA
- en: Port Byron, Illinois, USA
- es: Port Byron, Illinois, EE.UU.
- hr: Port Bajron, Ilinois, SAD
- mk: Port Bajron, Ilinois, SAD
- sr: Port Bajron, Ilinois, SAD
- zh: 拜伦港, 伊利诺伊, 美国
- Latitude: 41.606422°
- Longitude: -90.335406°
- Elevation: 610 ft
- Current time: 7:37am CDT
- Sunrise: 7:18 am CDT
- Sunset: 6:14 pm CDT
- Timezone: America/Chicago
Nearby Port Byron, Illinois, USA
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