Port Byron, Illinois | 10-Day Weather Forecasts & Weekend Weather | WeatherBug
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10 Day Forecast
  • Forecast night icon
    Night
    Rain
    43°
    Thursday 4/18
    Forecast night icon
    43°
    Rain
    Hourly
    Night Details
    Mostly clear with likely rain. Chance of precipitation 95%. Low temperature around 43F. Dew point will be around 43F with an average humidity of 95%. Winds will be 10 mph from the NW.
  • Forecast day icon
    Friday
    Mostly Sunny
    55°
    Forecast night icon
    Night
    Partly Cloudy
    39°
    Friday 4/19
    Day
    55°
    Mostly Sunny
    Forecast day icon
    Night
    39°
    Partly Cloudy
    Forecast night icon
    Hourly
    Day Details
    Mostly sunny. Areas of frost this morning. Highs in the upper 50s. Northwest winds 15 to 20 mph.
    Night Details
    Partly cloudy in the evening then clearing. Lows in the mid 30s. Northwest winds 10 to 15 mph. Gusts up to 30 mph in the evening.
  • Forecast day icon
    Saturday
    Mostly Sunny
    48°
    Forecast night icon
    Night
    Partly Cloudy
    37°
    Saturday 4/20
    Day
    48°
    Mostly Sunny
    Forecast day icon
    Night
    37°
    Partly Cloudy
    Forecast night icon
    Hourly
    Day Details
    Mostly sunny. Highs in the lower 50s. Northwest winds 10 to 15 mph with gusts up to 25 mph.
    Night Details
    Partly cloudy in the evening then clearing. Widespread frost after midnight. Lows in the lower 30s. Northwest winds 10 to 15 mph.
  • Forecast day icon
    Sunday
    Sunny
    57°
    Forecast night icon
    Night
    Clear
    41°
    Sunday 4/21
    Day
    57°
    Sunny
    Forecast day icon
    Night
    41°
    Clear
    Forecast night icon
    Hourly
    Day Details
    Widespread frost in the morning. Sunny. Highs in the upper 50s. West winds 10 to 15 mph.
    Night Details
    Clear. Lows in the upper 30s.
  • Forecast day icon
    Monday
    Partly Sunny
    62°
    Forecast night icon
    Night
    70% Chance Rain Showers
    56°
    Monday 4/22
    Day
    62°
    Partly Sunny
    Forecast day icon
    Night
    56°
    70% Chance Rain Showers
    Forecast night icon
    Hourly
    Day Details
    Sunny in the morning then becoming partly sunny. Areas of frost in the morning. Highs in the mid 60s.
    Night Details
    Showers likely mainly in the evening. Not as cool with lows in the lower 50s. Chance of rain 70 percent.
  • Forecast day icon
    Tuesday
    50% Chance Rain Showers
    60°
    Forecast night icon
    Night
    Mostly Clear
    46°
    Tuesday 4/23
    Day
    60°
    50% Chance Rain Showers
    Forecast day icon
    Night
    46°
    Mostly Clear
    Forecast night icon
    Hourly
    Day Details
    Partly sunny with a chance of showers. Highs in the mid 60s. Chance of rain 50 percent.
    Night Details
    Mostly clear. Lows in the upper 30s. Highs in the upper 50s.
  • Forecast day icon
    Wednesday
    Mostly Sunny
    57°
    Forecast night icon
    Night
    Partly Cloudy
    45°
    Wednesday 4/24
    Day
    57°
    Mostly Sunny
    Forecast day icon
    Night
    45°
    Partly Cloudy
    Forecast night icon
    Hourly
    Day Details
    Mostly clear. Lows in the upper 30s. Highs in the upper 50s.
    Night Details
    Partly cloudy. Lows in the upper 30s.
  • Forecast day icon
    Thursday
    30% Chance Rain Showers
    58°
    Forecast night icon
    Night
    40% Chance of Rain
    49°
    Thursday 4/25
    Day
    58°
    30% Chance Rain Showers
    Forecast day icon
    Night
    49°
    40% Chance of Rain
    Forecast night icon
    Day Details
    Mostly sunny. A chance of showers in the afternoon. Highs in the lower 60s. Chance of rain 30 percent.
    Night Details
    Cloudy with a chance of rain. Chance of precipitation 40%. Low temperature around 49F. Dew point will be around 43F with an average humidity of 72%. Winds will be 11 mph from the E.
  • Forecast day icon
    Friday
    70% Chance of Rain
    58°
    Forecast night icon
    Night
    70% Chance of Rain
    54°
    Friday 4/26
    Day
    58°
    70% Chance of Rain
    Forecast day icon
    Night
    54°
    70% Chance of Rain
    Forecast night icon
    Day Details
    Cloudy with probable rain. Chance of precipitation 70%. High temperature around 58F. Dew point will be around 49F with an average humidity of 86%. Winds will be 10 mph from the SE.
    Night Details
    Cloudy with probable rain. Chance of precipitation 70%. Low temperature around 54F. Dew point will be around 50F with an average humidity of 83%. Winds will be 10 mph from the SE.
  • Forecast day icon
    Saturday
    60% Chance of Rain
    65°
    Forecast night icon
    Night
    60% Chance of Rain
    59°
    Saturday 4/27
    Day
    65°
    60% Chance of Rain
    Forecast day icon
    Night
    59°
    60% Chance of Rain
    Forecast night icon
    Day Details
    Cloudy with a chance of rain. Chance of precipitation 60%. High temperature around 65F. Dew point will be around 56F with an average humidity of 88%. Winds will be 8 mph from the SE.
    Night Details
    Cloudy with a chance of rain. Chance of precipitation 60%. Low temperature around 59F. Dew point will be around 56F with an average humidity of 84%. Winds will be 8 mph from the SE.