Port Byron, Illinois | 10-Day Weather Forecasts & Weekend Weather | WeatherBug
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10 Day Forecast
  • Forecast day icon
    Tuesday
    50% Chance Rain Showers
    70°
    Forecast night icon
    Night
    Mostly Clear
    46°
    Tuesday 4/23
    Day
    70°
    50% Chance Rain Showers
    Forecast day icon
    Night
    46°
    Mostly Clear
    Forecast night icon
    Hourly
    Day Details
    Cloudy with a chance of showers this morning then mostly sunny with a slight chance of showers this afternoon. Highs in the upper 60s. West winds 15 to 20 mph. Gusts up to 35 mph this afternoon. Chance of rain 50 percent.
    Night Details
    Mostly clear. Cooler with lows in the lower 40s. Northwest winds 15 to 20 mph with gusts up to 30 mph becoming north around 10 mph with gusts up to 20 mph after midnight.
  • Forecast day icon
    Wednesday
    Sunny
    56°
    Forecast night icon
    Night
    Partly Cloudy
    40°
    Wednesday 4/24
    Day
    56°
    Sunny
    Forecast day icon
    Night
    40°
    Partly Cloudy
    Forecast night icon
    Hourly
    Day Details
    Sunny. Highs in the upper 50s. Northeast winds 5 to 10 mph.
    Night Details
    Mostly clear in the evening then becoming partly cloudy. Lows in the upper 30s. East winds 5 to 10 mph.
  • Forecast day icon
    Thursday
    Sunny
    64°
    Forecast night icon
    Night
    70% Chance Rain Showers
    53°
    Thursday 4/25
    Day
    64°
    Sunny
    Forecast day icon
    Night
    53°
    70% Chance Rain Showers
    Forecast night icon
    Hourly
    Day Details
    Sunny. Highs in the mid 60s. Southeast winds 10 to 15 mph.
    Night Details
    Partly cloudy in the evening then mostly cloudy with showers likely after midnight. Breezy and not as cool with lows around 50. Chance of rain 70 percent.
  • Forecast day icon
    Friday
    Thunderstorms
    63°
    Forecast night icon
    Night
    Thunderstorms
    64°
    Friday 4/26
    Day
    63°
    Thunderstorms
    Forecast day icon
    Night
    64°
    Thunderstorms
    Forecast night icon
    Hourly
    Day Details
    Showers with a chance of thunderstorms. Breezy with highs in the upper 60s. Chance of rain near 100 percent.
    Night Details
    Showers with thunderstorms likely in the evening then showers likely with a chance of thunderstorms after midnight. Breezy and not as cool. Near steady temperature in the mid 60s. Chance of rain near 100 percent.
  • Forecast day icon
    Saturday
    70% Chance of Storms
    78°
    Forecast night icon
    Night
    Thunderstorms
    64°
    Saturday 4/27
    Day
    78°
    70% Chance of Storms
    Forecast day icon
    Night
    64°
    Thunderstorms
    Forecast night icon
    Hourly
    Day Details
    A chance of showers in the morning then showers likely with a chance of thunderstorms in the afternoon. Breezy warmer with highs in the upper 70s. Chance of rain 70 percent.
    Night Details
    Showers with a chance of thunderstorms. Breezy. Lows in the lower 60s. Highs in the lower 70s. Chance of rain 90 percent.
  • Forecast day icon
    Sunday
    Thunderstorms
    69°
    Forecast night icon
    Night
    50% Chance of Storms
    65°
    Sunday 4/28
    Day
    69°
    Thunderstorms
    Forecast day icon
    Night
    65°
    50% Chance of Storms
    Forecast night icon
    Hourly
    Day Details
    Showers with a chance of thunderstorms. Breezy. Lows in the lower 60s. Highs in the lower 70s. Chance of rain 90 percent.
    Night Details
    Mostly cloudy. A chance of showers and thunderstorms in the evening then a chance of showers after midnight. Breezy cooler with lows in the lower 50s. Chance of rain 50 percent.
  • Forecast day icon
    Monday
    40% Chance Rain Showers
    64°
    Forecast night icon
    Night
    Mostly Clear
    55°
    Monday 4/29
    Day
    64°
    40% Chance Rain Showers
    Forecast day icon
    Night
    55°
    Mostly Clear
    Forecast night icon
    Day Details
    Partly sunny. A chance of showers in the afternoon. Highs in the mid 60s. Chance of rain 40 percent.
    Night Details
    Mostly clear. Low temperature around 55F. Dew point will be around 46F with an average humidity of 67%. Winds will be 9 mph from the W.
  • Forecast day icon
    Tuesday
    Sunny
    68°
    Forecast night icon
    Night
    Clear
    58°
    Tuesday 4/30
    Day
    68°
    Sunny
    Forecast day icon
    Night
    58°
    Clear
    Forecast night icon
    Day Details
    Sunny. High temperature around 68F. Dew point will be around 47F with an average humidity of 60%. Winds will be 4 mph from the W.
    Night Details
    Clear. Low temperature around 58F. Dew point will be around 48F with an average humidity of 61%. Winds will be 6 mph from the S.
  • Forecast day icon
    Wednesday
    30% Chance of Rain
    69°
    Forecast night icon
    Night
    40% Chance of Rain
    60°
    Wednesday 5/1
    Day
    69°
    30% Chance of Rain
    Forecast day icon
    Night
    60°
    40% Chance of Rain
    Forecast night icon
    Day Details
    Mostly sunny with a slight chance of rain. Chance of precipitation 30%. High temperature around 69F. Dew point will be around 52F with an average humidity of 65%. Winds will be 8 mph from the S.
    Night Details
    Partly cloudy with a chance of rain. Chance of precipitation 40%. Low temperature around 60F. Dew point will be around 53F with an average humidity of 66%. Winds will be 4 mph from the SW.
  • Forecast day icon
    Thursday
    30% Chance of Rain
    69°
    Forecast night icon
    Night
    30% Chance of Rain
    58°
    Thursday 5/2
    Day
    69°
    30% Chance of Rain
    Forecast day icon
    Night
    58°
    30% Chance of Rain
    Forecast night icon
    Day Details
    Partly cloudy with a slight chance of rain. Chance of precipitation 25%. High temperature around 69F. Dew point will be around 51F with an average humidity of 62%. Winds will be 2 mph from the S.
    Night Details
    Mostly cloudy with a slight chance of rain. Chance of precipitation 30%. Low temperature around 58F. Dew point will be around 49F with an average humidity of 61%. Winds will be 3 mph from the SE.