Saint Peter, Illinois | 10-Day Weather Forecasts & Weekend Weather | WeatherBug
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10 Day Forecast
  • Forecast day icon
    Thursday
    Sunny
    59°
    Forecast night icon
    Night
    Mostly Clear
    42°
    Thursday 3/28
    Day
    59°
    Sunny
    Forecast day icon
    Night
    42°
    Mostly Clear
    Forecast night icon
    Hourly
    Day Details
    Sunny. Not as cool with highs around 60. South winds 5 to 10 mph becoming southwest 10 to 15 mph this afternoon.
    Night Details
    Mostly clear. Not as cool with lows in the lower 40s. Southwest winds 5 to 10 mph.
  • Forecast day icon
    Friday
    Mostly Sunny
    68°
    Forecast night icon
    Night
    50% Chance Rain Showers
    57°
    Friday 3/29
    Day
    68°
    Mostly Sunny
    Forecast day icon
    Night
    57°
    50% Chance Rain Showers
    Forecast night icon
    Hourly
    Day Details
    Mostly sunny. Highs in the upper 60s. Southwest winds 5 to 10 mph increasing to south 15 to 20 mph in the afternoon.
    Night Details
    Mostly cloudy with a 50 percent chance of showers. Not as cool with lows in the mid 50s. South winds 15 to 20 mph with gusts up to 30 mph.
  • Forecast day icon
    Saturday
    Partly Sunny
    70°
    Forecast night icon
    Night
    40% Chance of Storms
    54°
    Saturday 3/30
    Day
    70°
    Partly Sunny
    Forecast day icon
    Night
    54°
    40% Chance of Storms
    Forecast night icon
    Hourly
    Day Details
    Partly sunny. A slight chance of showers in the afternoon. Highs in the lower 70s. West winds 10 to 15 mph with gusts up to 25 mph. Chance of rain 20 percent.
    Night Details
    A slight chance of thunderstorms in the evening. Mostly cloudy with a chance of showers. Lows around 50. Chance of rain 40 percent.
  • Forecast day icon
    Sunday
    50% Chance of Storms
    67°
    Forecast night icon
    Night
    60% Chance of Storms
    61°
    Sunday 3/31
    Day
    67°
    50% Chance of Storms
    Forecast day icon
    Night
    61°
    60% Chance of Storms
    Forecast night icon
    Hourly
    Day Details
    Partly sunny in the morning then becoming mostly cloudy. A chance of showers and thunderstorms. Highs around 70. Chance of rain 50 percent.
    Night Details
    Mostly cloudy with a chance of thunderstorms. Showers likely mainly in the evening. Lows in the upper 50s. Chance of rain 60 percent.
  • Forecast day icon
    Monday
    80% Chance of Storms
    72°
    Forecast night icon
    Night
    80% Chance of Storms
    55°
    Monday 4/1
    Day
    72°
    80% Chance of Storms
    Forecast day icon
    Night
    55°
    80% Chance of Storms
    Forecast night icon
    Hourly
    Day Details
    Showers with a chance of thunderstorms. Highs in the mid 70s. Lows in the upper 40s. Chance of rain 80 percent.
    Night Details
    Showers with a chance of thunderstorms. Highs in the mid 70s. Lows in the upper 40s. Chance of rain 80 percent.
  • Forecast day icon
    Tuesday
    50% Chance of Storms
    58°
    Forecast night icon
    Night
    Partly Cloudy
    39°
    Tuesday 4/2
    Day
    58°
    50% Chance of Storms
    Forecast day icon
    Night
    39°
    Partly Cloudy
    Forecast night icon
    Hourly
    Day Details
    Partly sunny. A chance of showers and thunderstorms mainly in the morning. Much cooler with highs in the upper 50s. Chance of rain 50 percent.
    Night Details
    Partly cloudy. Cooler with lows in the mid 30s.
  • Forecast day icon
    Wednesday
    Sunny
    55°
    Forecast night icon
    Night
    Clear
    38°
    Wednesday 4/3
    Day
    55°
    Sunny
    Forecast day icon
    Night
    38°
    Clear
    Forecast night icon
    Day Details
    Sunny. Highs in the mid 50s.
    Night Details
    Clear. Low temperature around 38F. Dew point will be around 34F with an average humidity of 67%. Winds will be 9 mph from the NW.
  • Forecast day icon
    Thursday
    Sunny
    64°
    Forecast night icon
    Night
    Clear
    43°
    Thursday 4/4
    Day
    64°
    Sunny
    Forecast day icon
    Night
    43°
    Clear
    Forecast night icon
    Day Details
    Sunny. High temperature around 64F. Dew point will be around 37F with an average humidity of 56%. Winds will be 6 mph from the SW.
    Night Details
    Clear. Low temperature around 43F. Dew point will be around 40F with an average humidity of 67%. Winds will be 4 mph from the SW.
  • Forecast day icon
    Friday
    Sunny
    66°
    Forecast night icon
    Night
    Mostly Clear
    48°
    Friday 4/5
    Day
    66°
    Sunny
    Forecast day icon
    Night
    48°
    Mostly Clear
    Forecast night icon
    Day Details
    Sunny. High temperature around 66F. Dew point will be around 43F with an average humidity of 61%. Winds will be 6 mph from the S.
    Night Details
    Mostly clear. Low temperature around 48F. Dew point will be around 45F with an average humidity of 70%. Winds will be 6 mph from the S.
  • Forecast day icon
    Saturday
    Partly Cloudy
    67°
    Forecast night icon
    Night
    30% Chance of Rain
    47°
    Saturday 4/6
    Day
    67°
    Partly Cloudy
    Forecast day icon
    Night
    47°
    30% Chance of Rain
    Forecast night icon
    Day Details
    Partly cloudy. High temperature around 67F. Dew point will be around 48F with an average humidity of 67%. Winds will be 9 mph from the S.
    Night Details
    Partly cloudy with a slight chance of rain. Chance of precipitation 25%. Low temperature around 47F. Dew point will be around 48F with an average humidity of 75%. Winds will be 4 mph from the S.