Saint Clair, Pennsylvania | 10-Day Weather Forecasts & Weekend Weather | WeatherBug
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10 Day Forecast
  • Forecast day icon
    Thursday
    50% Chance Rain Showers
    71°
    Forecast night icon
    Night
    Rain
    50°
    Thursday 5/9
    Day
    71°
    50% Chance Rain Showers
    Forecast day icon
    Night
    50°
    Rain
    Forecast night icon
    Hourly
    Day Details
    Mostly cloudy. Scattered showers this afternoon. Much cooler with highs in the mid 60s. Northeast winds around 5 mph. Chance of rain 50 percent.
    Night Details
    Numerous showers in the evening then widespread showers after midnight. Lows in the upper 40s. East winds 5 to 10 mph. Chance of rain near 100 percent.
  • Forecast day icon
    Friday
    Rain
    54°
    Forecast night icon
    Night
    Rain
    46°
    Friday 5/10
    Day
    54°
    Rain
    Forecast day icon
    Night
    46°
    Rain
    Forecast night icon
    Hourly
    Day Details
    Showers cooler with highs in the lower 50s. East winds 10 to 15 mph. Chance of rain 90 percent.
    Night Details
    Cloudy. Showers mainly in the evening. Lows in the mid 40s. East winds 5 to 10 mph. Chance of rain 90 percent.
  • Forecast day icon
    Saturday
    50% Chance Rain Showers
    60°
    Forecast night icon
    Night
    50% Chance Rain Showers
    45°
    Saturday 5/11
    Day
    60°
    50% Chance Rain Showers
    Forecast day icon
    Night
    45°
    50% Chance Rain Showers
    Forecast night icon
    Hourly
    Day Details
    Mostly cloudy. A chance of showers in the afternoon. Highs in the upper 50s. Northeast winds around 5 mph becoming south in the afternoon. Chance of rain 50 percent.
    Night Details
    Mostly cloudy with a 50 percent chance of showers. Lows in the mid 40s.
  • Forecast day icon
    Sunday
    60% Chance Rain Showers
    59°
    Forecast night icon
    Night
    50% Chance Rain Showers
    44°
    Sunday 5/12
    Day
    59°
    60% Chance Rain Showers
    Forecast day icon
    Night
    44°
    50% Chance Rain Showers
    Forecast night icon
    Hourly
    Day Details
    Showers likely. Highs in the upper 50s. Chance of rain 60 percent.
    Night Details
    Partly cloudy with a chance of showers in the evening then mostly clear after midnight. Lows in the lower 40s. Chance of rain 50 percent.
  • Forecast day icon
    Monday
    Mostly Sunny
    71°
    Forecast night icon
    Night
    Mostly Cloudy
    52°
    Monday 5/13
    Day
    71°
    Mostly Sunny
    Forecast day icon
    Night
    52°
    Mostly Cloudy
    Forecast night icon
    Hourly
    Day Details
    Mostly sunny. Not as cool with highs in the upper 60s.
    Night Details
    Mostly cloudy. Lows in the lower 50s.
  • Forecast day icon
    Tuesday
    40% Chance Rain Showers
    72°
    Forecast night icon
    Night
    50% Chance Rain Showers
    57°
    Tuesday 5/14
    Day
    72°
    40% Chance Rain Showers
    Forecast day icon
    Night
    57°
    50% Chance Rain Showers
    Forecast night icon
    Hourly
    Day Details
    Partly sunny. A chance of showers in the afternoon. Highs in the lower 70s. Chance of rain 40 percent.
    Night Details
    Mostly cloudy with a chance of showers. Lows in the mid 50s. Chance of rain 50 percent.
  • Forecast day icon
    Wednesday
    60% Chance Rain Showers
    70°
    Forecast night icon
    Night
    50% Chance of Rain
    57°
    Wednesday 5/15
    Day
    70°
    60% Chance Rain Showers
    Forecast day icon
    Night
    57°
    50% Chance of Rain
    Forecast night icon
    Hourly
    Day Details
    Mostly cloudy. A chance of showers in the morning then showers likely in the afternoon. Highs in the upper 60s. Chance of rain 60 percent.
    Night Details
    Cloudy with a chance of rain. Chance of precipitation 50%. Low temperature around 57F. Dew point will be around 58F with an average humidity of 94%. Winds will be 4 mph from the E.
  • Forecast day icon
    Thursday
    50% Chance of Rain
    73°
    Forecast night icon
    Night
    50% Chance of Rain
    58°
    Thursday 5/16
    Day
    73°
    50% Chance of Rain
    Forecast day icon
    Night
    58°
    50% Chance of Rain
    Forecast night icon
    Day Details
    Cloudy with a chance of rain. Chance of precipitation 50%. High temperature around 73F. Dew point will be around 59F with an average humidity of 77%. Winds will be 2 mph from the NE.
    Night Details
    Partly cloudy with a chance of rain. Chance of precipitation 45%. Low temperature around 58F. Dew point will be around 58F with an average humidity of 85%. Winds will be 1 mph from the E.
  • Forecast day icon
    Friday
    60% Chance of Rain
    73°
    Forecast night icon
    Night
    50% Chance of Rain
    58°
    Friday 5/17
    Day
    73°
    60% Chance of Rain
    Forecast day icon
    Night
    58°
    50% Chance of Rain
    Forecast night icon
    Day Details
    Cloudy with a chance of rain. Chance of precipitation 55%. High temperature around 73F. Dew point will be around 58F with an average humidity of 74%. Winds will be 1 mph from the E.
    Night Details
    Cloudy with a chance of rain. Chance of precipitation 50%. Low temperature around 58F. Dew point will be around 57F with an average humidity of 84%. Winds will be 0 mph from the SE.
  • Forecast day icon
    Saturday
    40% Chance of Rain
    74°
    Forecast night icon
    Night
    40% Chance of Rain
    58°
    Saturday 5/18
    Day
    74°
    40% Chance of Rain
    Forecast day icon
    Night
    58°
    40% Chance of Rain
    Forecast night icon
    Day Details
    Cloudy with a chance of rain. Chance of precipitation 40%. High temperature around 74F. Dew point will be around 58F with an average humidity of 72%. Winds will be 2 mph from the SW.
    Night Details
    Partly cloudy with a chance of rain. Chance of precipitation 35%. Low temperature around 58F. Dew point will be around 57F with an average humidity of 83%. Winds will be 2 mph from the SW.