Saint Peter, Illinois | 10-Day Weather Forecasts & Weekend Weather | WeatherBug
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10 Day Forecast
  • Forecast day icon
    Monday
    80% Chance of Storms
    70°
    Forecast night icon
    Night
    80% Chance of Storms
    61°
    Monday 5/13
    Day
    70°
    80% Chance of Storms
    Forecast day icon
    Night
    61°
    80% Chance of Storms
    Forecast night icon
    Hourly
    Day Details
    Mostly cloudy. Isolated showers and thunderstorms this morning then showers and scattered thunderstorms this afternoon. Highs in the lower 70s. Temperature falling into the upper 60s this afternoon. South winds 10 to 15 mph. Chance of rain 80 percent.
    Night Details
    Scattered thunderstorms. Showers. Patchy fog after midnight. Lows in the lower 60s. Southeast winds 5 to 10 mph. Chance of rain 80 percent.
  • Forecast day icon
    Tuesday
    Scattered Thunderstorms
    67°
    Forecast night icon
    Night
    50% Chance of Storms
    56°
    Tuesday 5/14
    Day
    67°
    Scattered Thunderstorms
    Forecast day icon
    Night
    56°
    50% Chance of Storms
    Forecast night icon
    Hourly
    Day Details
    Patchy fog in the morning. Scattered thunderstorms. Showers. Highs in the lower 70s. East winds around 5 mph becoming northeast with gusts up to 20 mph in the afternoon. Chance of rain 90 percent.
    Night Details
    Mostly cloudy. Scattered showers and thunderstorms in the evening. Lows in the mid 50s. North winds 10 to 15 mph. Chance of rain 50 percent.
  • Forecast day icon
    Wednesday
    Mostly Sunny
    70°
    Forecast night icon
    Night
    Partly Cloudy
    58°
    Wednesday 5/15
    Day
    70°
    Mostly Sunny
    Forecast day icon
    Night
    58°
    Partly Cloudy
    Forecast night icon
    Hourly
    Day Details
    Mostly sunny. Highs in the mid 70s. North winds around 10 mph.
    Night Details
    Partly cloudy. Lows in the mid 50s.
  • Forecast day icon
    Thursday
    60% Chance of Storms
    72°
    Forecast night icon
    Night
    50% Chance of Storms
    60°
    Thursday 5/16
    Day
    72°
    60% Chance of Storms
    Forecast day icon
    Night
    60°
    50% Chance of Storms
    Forecast night icon
    Hourly
    Day Details
    Partly sunny with a chance of showers in the morning then mostly cloudy with showers likely with a chance of thunderstorms in the afternoon. Highs in the mid 70s. Chance of rain 60 percent.
    Night Details
    Mostly cloudy with a chance of showers and thunderstorms. Lows around 60. Chance of rain 50 percent.
  • Forecast day icon
    Friday
    50% Chance of Storms
    75°
    Forecast night icon
    Night
    Partly Cloudy
    58°
    Friday 5/17
    Day
    75°
    50% Chance of Storms
    Forecast day icon
    Night
    58°
    Partly Cloudy
    Forecast night icon
    Hourly
    Day Details
    Mostly sunny with a chance of showers. A slight chance of thunderstorms in the morning then a chance of thunderstorms in the afternoon. Highs in the mid 70s. Chance of rain 50 percent.
    Night Details
    Partly cloudy in the evening then clearing. A slight chance of showers and thunderstorms. Lows in the upper 50s. Chance of rain 20 percent.
  • Forecast day icon
    Saturday
    30% Chance Rain Showers
    79°
    Forecast night icon
    Night
    30% Chance Rain Showers
    63°
    Saturday 5/18
    Day
    79°
    30% Chance Rain Showers
    Forecast day icon
    Night
    63°
    30% Chance Rain Showers
    Forecast night icon
    Hourly
    Day Details
    Mostly clear. A 30 percent chance of showers. Highs in the lower 80s. Lows in the lower 60s.
    Night Details
    Mostly clear. A 30 percent chance of showers. Highs in the lower 80s. Lows in the lower 60s.
  • Forecast day icon
    Sunday
    40% Chance of Storms
    82°
    Forecast night icon
    Night
    30% Chance of Rain
    63°
    Sunday 5/19
    Day
    82°
    40% Chance of Storms
    Forecast day icon
    Night
    63°
    30% Chance of Rain
    Forecast night icon
    Day Details
    Mostly sunny with a chance of showers. A slight chance of thunderstorms in the afternoon. Highs around 80. Chance of rain 40 percent.
    Night Details
    Mostly clear with a 30% chance for rain and thunderstorms. Low temperature around 63F. Dew point will be around 62F with an average humidity of 78%. Winds will be 6 mph from the S.
  • Forecast day icon
    Monday
    Mostly Sunny
    79°
    Forecast night icon
    Night
    30% Chance of Rain
    64°
    Monday 5/20
    Day
    79°
    Mostly Sunny
    Forecast day icon
    Night
    64°
    30% Chance of Rain
    Forecast night icon
    Day Details
    Mostly sunny. High temperature around 79F. Dew point will be around 64F with an average humidity of 71%. Winds will be 7 mph from the SW.
    Night Details
    Mostly clear with a slight chance of rain. Chance of precipitation 30%. Low temperature around 64F. Dew point will be around 64F with an average humidity of 86%. Winds will be 5 mph from the S.
  • Forecast day icon
    Tuesday
    40% Chance of Rain
    73°
    Forecast night icon
    Night
    40% Chance of Rain
    59°
    Tuesday 5/21
    Day
    73°
    40% Chance of Rain
    Forecast day icon
    Night
    59°
    40% Chance of Rain
    Forecast night icon
    Day Details
    Cloudy with a 35% chance for rain and thunderstorms. High temperature around 73F. Dew point will be around 62F with an average humidity of 77%. Winds will be 6 mph from the W.
    Night Details
    Mostly clear with a chance of rain. Chance of precipitation 35%. Low temperature around 59F. Dew point will be around 59F with an average humidity of 84%. Winds will be 3 mph from the W.
  • Forecast day icon
    Wednesday
    30% Chance of Rain
    72°
    Forecast night icon
    Night
    30% Chance of Rain
    58°
    Wednesday 5/22
    Day
    72°
    30% Chance of Rain
    Forecast day icon
    Night
    58°
    30% Chance of Rain
    Forecast night icon
    Day Details
    Sunny with a slight chance of rain. Chance of precipitation 25%. High temperature around 72F. Dew point will be around 58F with an average humidity of 73%. Winds will be 4 mph from the W.
    Night Details
    Clear with a slight chance of rain. Chance of precipitation 30%. Low temperature around 58F. Dew point will be around 58F with an average humidity of 85%. Winds will be 2 mph from the S.