Petersburg, Illinois | 10-Day Weather Forecasts & Weekend Weather | WeatherBug
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10 Day Forecast
  • Forecast day icon
    Thursday
    Thunderstorms
    73°
    Forecast night icon
    Night
    Thunderstorms
    42°
    Thursday 4/18
    Day
    73°
    Thunderstorms
    Forecast day icon
    Night
    42°
    Thunderstorms
    Forecast night icon
    Hourly
    Day Details
    Partly sunny with a chance of showers with a slight chance of thunderstorms this morning then showers and thunderstorms this afternoon. Highs in the mid 70s. Southeast winds 10 to 15 mph with gusts up to 25 mph. Chance of rain near 100 percent.
    Night Details
    Showers and thunderstorms in the evening then partly cloudy after midnight. Lows in the lower 40s. North winds 15 to 20 mph with gusts up to 30 mph. Chance of rain near 100 percent.
  • Forecast day icon
    Friday
    Partly Sunny
    58°
    Forecast night icon
    Night
    Mostly Cloudy
    41°
    Friday 4/19
    Day
    58°
    Partly Sunny
    Forecast day icon
    Night
    41°
    Mostly Cloudy
    Forecast night icon
    Hourly
    Day Details
    Partly sunny. Much cooler with highs in the upper 50s. Northwest winds 10 to 15 mph.
    Night Details
    Mostly cloudy. Lows in the lower 40s. Northwest winds 5 to 10 mph.
  • Forecast day icon
    Saturday
    Mostly Sunny
    55°
    Forecast night icon
    Night
    Partly Cloudy
    36°
    Saturday 4/20
    Day
    55°
    Mostly Sunny
    Forecast day icon
    Night
    36°
    Partly Cloudy
    Forecast night icon
    Hourly
    Day Details
    Mostly sunny. Highs in the mid 50s. Northwest winds 10 to 15 mph.
    Night Details
    Partly cloudy. Lows in the mid 30s.
  • Forecast day icon
    Sunday
    Sunny
    58°
    Forecast night icon
    Night
    Mostly Clear
    38°
    Sunday 4/21
    Day
    58°
    Sunny
    Forecast day icon
    Night
    38°
    Mostly Clear
    Forecast night icon
    Hourly
    Day Details
    Areas of frost in the morning. Sunny. Highs in the upper 50s.
    Night Details
    Mostly clear. Lows in the upper 30s. Highs in the mid 60s.
  • Forecast day icon
    Monday
    Mostly Sunny
    65°
    Forecast night icon
    Night
    50% Chance Rain Showers
    53°
    Monday 4/22
    Day
    65°
    Mostly Sunny
    Forecast day icon
    Night
    53°
    50% Chance Rain Showers
    Forecast night icon
    Hourly
    Day Details
    Mostly clear. Lows in the upper 30s. Highs in the mid 60s.
    Night Details
    Mostly cloudy with a chance of showers. Not as cool with lows around 50. Chance of rain 50 percent.
  • Forecast day icon
    Tuesday
    50% Chance Rain Showers
    65°
    Forecast night icon
    Night
    Partly Cloudy
    44°
    Tuesday 4/23
    Day
    65°
    50% Chance Rain Showers
    Forecast day icon
    Night
    44°
    Partly Cloudy
    Forecast night icon
    Hourly
    Day Details
    Partly sunny with a 50 percent chance of showers. Highs in the upper 60s.
    Night Details
    Partly cloudy in the evening then becoming mostly clear. Lows in the lower 40s.
  • Forecast day icon
    Wednesday
    Mostly Sunny
    63°
    Forecast night icon
    Night
    Mostly Clear
    49°
    Wednesday 4/24
    Day
    63°
    Mostly Sunny
    Forecast day icon
    Night
    49°
    Mostly Clear
    Forecast night icon
    Day Details
    Mostly sunny. Highs in the mid 60s.
    Night Details
    Mostly clear. Low temperature around 49F. Dew point will be around 43F with an average humidity of 71%. Winds will be 8 mph from the E.
  • Forecast day icon
    Thursday
    30% Chance of Rain
    70°
    Forecast night icon
    Night
    40% Chance of Rain
    53°
    Thursday 4/25
    Day
    70°
    30% Chance of Rain
    Forecast day icon
    Night
    53°
    40% Chance of Rain
    Forecast night icon
    Day Details
    Mostly cloudy with a slight chance of rain. Chance of precipitation 30%. High temperature around 70F. Dew point will be around 51F with an average humidity of 65%. Winds will be 5 mph from the SW.
    Night Details
    Partly cloudy with a chance of rain. Chance of precipitation 40%. Low temperature around 53F. Dew point will be around 50F with an average humidity of 75%. Winds will be 3 mph from the SW.
  • Forecast day icon
    Friday
    50% Chance of Rain
    70°
    Forecast night icon
    Night
    60% Chance of Rain
    52°
    Friday 4/26
    Day
    70°
    50% Chance of Rain
    Forecast day icon
    Night
    52°
    60% Chance of Rain
    Forecast night icon
    Day Details
    Mostly sunny with a chance of rain. Chance of precipitation 50%. High temperature around 70F. Dew point will be around 50F with an average humidity of 63%. Winds will be 6 mph from the W.
    Night Details
    Mostly clear with a chance of rain. Chance of precipitation 60%. Low temperature around 52F. Dew point will be around 48F with an average humidity of 72%. Winds will be 3 mph from the SW.
  • Forecast day icon
    Saturday
    50% Chance of Rain
    70°
    Forecast night icon
    Night
    50% Chance of Rain
    51°
    Saturday 4/27
    Day
    70°
    50% Chance of Rain
    Forecast day icon
    Night
    51°
    50% Chance of Rain
    Forecast night icon
    Day Details
    Partly cloudy with a chance of rain. Chance of precipitation 50%. High temperature around 70F. Dew point will be around 49F with an average humidity of 62%. Winds will be 3 mph from the W.
    Night Details
    Partly cloudy with a chance of rain. Chance of precipitation 50%. Low temperature around 51F. Dew point will be around 47F with an average humidity of 70%. Winds will be 2 mph from the NW.