Petersburg, Illinois | 10-Day Weather Forecasts & Weekend Weather | WeatherBug
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10 Day Forecast
  • Forecast day icon
    Wednesday
    Mostly Sunny
    76°
    Forecast night icon
    Night
    30% Chance of Storms
    59°
    Wednesday 5/1
    Day
    76°
    Mostly Sunny
    Forecast day icon
    Night
    59°
    30% Chance of Storms
    Forecast night icon
    Hourly
    Day Details
    Mostly sunny. Near steady temperature in the mid 70s. North winds around 5 mph.
    Night Details
    Partly cloudy in the evening then mostly cloudy with a chance of showers and thunderstorms after midnight. Lows in the upper 50s. Northeast winds 5 to 10 mph becoming east with gusts up to 20 mph after midnight. Chance of rain 30 percent.
  • Forecast day icon
    Thursday
    40% Chance of Storms
    85°
    Forecast night icon
    Night
    80% Chance of Storms
    63°
    Thursday 5/2
    Day
    85°
    40% Chance of Storms
    Forecast day icon
    Night
    63°
    80% Chance of Storms
    Forecast night icon
    Hourly
    Day Details
    Partly sunny. A chance of showers and thunderstorms in the afternoon. Highs in the mid 80s. Southeast winds 10 to 15 mph becoming south 15 to 20 mph in the afternoon. Chance of rain 40 percent.
    Night Details
    A chance of thunderstorms. Showers. Lows in the lower 60s. Southwest winds 10 to 15 mph. Chance of rain 80 percent.
  • Forecast day icon
    Friday
    50% Chance Rain Showers
    73°
    Forecast night icon
    Night
    Partly Cloudy
    55°
    Friday 5/3
    Day
    73°
    50% Chance Rain Showers
    Forecast day icon
    Night
    55°
    Partly Cloudy
    Forecast night icon
    Hourly
    Day Details
    Mostly cloudy in the morning then becoming partly sunny. A chance of showers. Cooler with highs in the mid 70s. North winds 5 to 10 mph. Chance of rain 50 percent.
    Night Details
    Partly cloudy in the evening then becoming mostly clear. Lows in the upper 50s.
  • Forecast day icon
    Saturday
    40% Chance of Storms
    73°
    Forecast night icon
    Night
    40% Chance of Storms
    55°
    Saturday 5/4
    Day
    73°
    40% Chance of Storms
    Forecast day icon
    Night
    55°
    40% Chance of Storms
    Forecast night icon
    Hourly
    Day Details
    Mostly cloudy. A chance of showers and thunderstorms. Highs in the upper 70s. Lows in the mid 50s. Chance of rain 40 percent.
    Night Details
    Mostly cloudy. A chance of showers and thunderstorms. Highs in the upper 70s. Lows in the mid 50s. Chance of rain 40 percent.
  • Forecast day icon
    Sunday
    30% Chance Rain Showers
    74°
    Forecast night icon
    Night
    50% Chance of Storms
    59°
    Sunday 5/5
    Day
    74°
    30% Chance Rain Showers
    Forecast day icon
    Night
    59°
    50% Chance of Storms
    Forecast night icon
    Hourly
    Day Details
    Partly sunny. A chance of showers in the afternoon. Highs in the mid 70s. Chance of rain 30 percent.
    Night Details
    Mostly cloudy with a chance of showers and thunderstorms. Lows in the upper 50s. Chance of rain 50 percent.
  • Forecast day icon
    Monday
    70% Chance of Storms
    75°
    Forecast night icon
    Night
    70% Chance of Storms
    66°
    Monday 5/6
    Day
    75°
    70% Chance of Storms
    Forecast day icon
    Night
    66°
    70% Chance of Storms
    Forecast night icon
    Hourly
    Day Details
    Showers likely with a chance of thunderstorms. Highs in the upper 70s. Lows in the mid 60s. Chance of rain 70 percent.
    Night Details
    Showers likely with a chance of thunderstorms. Highs in the upper 70s. Lows in the mid 60s. Chance of rain 70 percent.
  • Forecast day icon
    Tuesday
    60% Chance of Storms
    82°
    Forecast night icon
    Night
    60% Chance of Rain
    62°
    Tuesday 5/7
    Day
    82°
    60% Chance of Storms
    Forecast day icon
    Night
    62°
    60% Chance of Rain
    Forecast night icon
    Day Details
    A chance of thunderstorms. A chance of showers in the morning then showers likely in the afternoon. Highs in the lower 80s. Chance of rain 60 percent.
    Night Details
    Mostly clear with a chance of rain. Chance of precipitation 55%. Low temperature around 62F. Dew point will be around 60F with an average humidity of 76%. Winds will be 10 mph from the SW.
  • Forecast day icon
    Wednesday
    40% Chance of Rain
    78°
    Forecast night icon
    Night
    50% Chance of Rain
    58°
    Wednesday 5/8
    Day
    78°
    40% Chance of Rain
    Forecast day icon
    Night
    58°
    50% Chance of Rain
    Forecast night icon
    Day Details
    Sunny with a 35% chance for rain and thunderstorms. High temperature around 78F. Dew point will be around 60F with an average humidity of 67%. Winds will be 11 mph from the SW.
    Night Details
    Clear with a chance of rain. Chance of precipitation 45%. Low temperature around 58F. Dew point will be around 57F with an average humidity of 75%. Winds will be 7 mph from the SW.
  • Forecast day icon
    Thursday
    40% Chance of Rain
    74°
    Forecast night icon
    Night
    50% Chance of Rain
    57°
    Thursday 5/9
    Day
    74°
    40% Chance of Rain
    Forecast day icon
    Night
    57°
    50% Chance of Rain
    Forecast night icon
    Day Details
    Sunny with a chance of rain. Chance of precipitation 35%. High temperature around 74F. Dew point will be around 56F with an average humidity of 66%. Winds will be 5 mph from the SW.
    Night Details
    Mostly clear with a chance of rain. Chance of precipitation 45%. Low temperature around 57F. Dew point will be around 56F with an average humidity of 76%. Winds will be 3 mph from the W.
  • Forecast day icon
    Friday
    30% Chance of Rain
    73°
    Forecast night icon
    Night
    40% Chance of Rain
    55°
    Friday 5/10
    Day
    73°
    30% Chance of Rain
    Forecast day icon
    Night
    55°
    40% Chance of Rain
    Forecast night icon
    Day Details
    Sunny with a 30% chance for rain and thunderstorms. High temperature around 73F. Dew point will be around 55F with an average humidity of 68%. Winds will be 2 mph from the W.
    Night Details
    Mostly clear with a 40% chance for rain and thunderstorms. Low temperature around 55F. Dew point will be around 53F with an average humidity of 73%. Winds will be 1 mph from the E.