Saint Clair, Pennsylvania | 10-Day Weather Forecasts & Weekend Weather | WeatherBug
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10 Day Forecast
  • Forecast night icon
    Night
    Mostly Cloudy
    48°
    Friday 5/3
    Forecast night icon
    48°
    Mostly Cloudy
    Hourly
    Night Details
    Mostly cloudy. Lows in the upper 40s. Southeast winds 5 to 10 mph with gusts up to 20 mph.
  • Forecast day icon
    Saturday
    50% Chance of Rain
    59°
    Forecast night icon
    Night
    70% Chance of Rain
    45°
    Saturday 5/4
    Day
    59°
    50% Chance of Rain
    Forecast day icon
    Night
    45°
    70% Chance of Rain
    Forecast night icon
    Hourly
    Day Details
    Cloudy with a 50 percent chance of rain. Much cooler with highs in the mid 50s. Southeast winds 5 to 10 mph with gusts up to 20 mph.
    Night Details
    Rain likely. Lows in the mid 40s. Southeast winds 10 to 15 mph with gusts up to 25 mph. Chance of rain 70 percent.
  • Forecast day icon
    Sunday
    Rain
    57°
    Forecast night icon
    Night
    70% Chance Rain Showers
    47°
    Sunday 5/5
    Day
    57°
    Rain
    Forecast day icon
    Night
    47°
    70% Chance Rain Showers
    Forecast night icon
    Hourly
    Day Details
    Rain. Highs in the mid 50s. Southeast winds 10 to 15 mph with gusts up to 25 mph. Chance of rain 90 percent.
    Night Details
    Rain likely in the evening then showers likely after midnight. Patchy fog after midnight. Near steady temperature in the mid 50s. Southeast winds 5 to 10 mph. Chance of rain 70 percent.
  • Forecast day icon
    Monday
    40% Chance Rain Showers
    76°
    Forecast night icon
    Night
    30% Chance Rain Showers
    53°
    Monday 5/6
    Day
    76°
    40% Chance Rain Showers
    Forecast day icon
    Night
    53°
    30% Chance Rain Showers
    Forecast night icon
    Hourly
    Day Details
    Mostly cloudy. A chance of showers in the morning. Much warmer with highs in the mid 70s. Chance of rain 40 percent.
    Night Details
    Mostly cloudy with scattered showers. Lows in the mid 50s. Chance of rain 30 percent.
  • Forecast day icon
    Tuesday
    40% Chance Rain Showers
    74°
    Forecast night icon
    Night
    50% Chance Rain Showers
    59°
    Tuesday 5/7
    Day
    74°
    40% Chance Rain Showers
    Forecast day icon
    Night
    59°
    50% Chance Rain Showers
    Forecast night icon
    Hourly
    Day Details
    Partly sunny. A chance of showers in the afternoon. Highs in the mid 70s. Chance of rain 40 percent.
    Night Details
    Mostly cloudy with a chance of showers. Lows around 60. Chance of rain 50 percent.
  • Forecast day icon
    Wednesday
    50% Chance of Storms
    75°
    Forecast night icon
    Night
    50% Chance of Storms
    57°
    Wednesday 5/8
    Day
    75°
    50% Chance of Storms
    Forecast day icon
    Night
    57°
    50% Chance of Storms
    Forecast night icon
    Hourly
    Day Details
    Mostly cloudy in the morning then becoming partly sunny. A chance of showers. A chance of thunderstorms in the afternoon. Highs in the upper 70s. Chance of rain 50 percent.
    Night Details
    Partly cloudy in the evening then becoming mostly cloudy. A chance of showers and thunderstorms. Lows in the upper 50s. Chance of rain 50 percent.
  • Forecast day icon
    Thursday
    80% Chance of Storms
    72°
    Forecast night icon
    Night
    80% Chance of Storms
    56°
    Thursday 5/9
    Day
    72°
    80% Chance of Storms
    Forecast day icon
    Night
    56°
    80% Chance of Storms
    Forecast night icon
    Hourly
    Day Details
    Mostly cloudy. A chance of showers in the morning then showers with a chance of thunderstorms in the afternoon. Highs around 70. Chance of rain 80 percent.
    Night Details
    Mostly cloudy with a chance of thunderstorms. Showers mainly in the evening. Lows in the mid 50s. Chance of rain 80 percent.
  • Forecast day icon
    Friday
    60% Chance Rain Showers
    72°
    Forecast night icon
    Night
    50% Chance of Rain
    52°
    Friday 5/10
    Day
    72°
    60% Chance Rain Showers
    Forecast day icon
    Night
    52°
    50% Chance of Rain
    Forecast night icon
    Hourly
    Day Details
    Mostly cloudy with a chance of showers in the morning then partly sunny with showers likely in the afternoon. Highs in the lower 70s. Chance of rain 60 percent.
    Night Details
    Mostly cloudy with a chance of rain. Chance of precipitation 45%. Low temperature around 52F. Dew point will be around 54F with an average humidity of 85%. Winds will be 3 mph from the W.
  • Forecast day icon
    Saturday
    50% Chance of Rain
    67°
    Forecast night icon
    Night
    40% Chance of Rain
    48°
    Saturday 5/11
    Day
    67°
    50% Chance of Rain
    Forecast day icon
    Night
    48°
    40% Chance of Rain
    Forecast night icon
    Day Details
    Cloudy with a chance of rain. Chance of precipitation 45%. High temperature around 67F. Dew point will be around 51F with an average humidity of 66%. Winds will be 8 mph from the W.
    Night Details
    Partly cloudy with a chance of rain. Chance of precipitation 35%. Low temperature around 48F. Dew point will be around 47F with an average humidity of 78%. Winds will be 6 mph from the W.
  • Forecast day icon
    Sunday
    30% Chance of Rain
    65°
    Forecast night icon
    Night
    30% Chance of Rain
    46°
    Sunday 5/12
    Day
    65°
    30% Chance of Rain
    Forecast day icon
    Night
    46°
    30% Chance of Rain
    Forecast night icon
    Day Details
    Sunny with a slight chance of rain. Chance of precipitation 30%. High temperature around 65F. Dew point will be around 47F with an average humidity of 63%. Winds will be 8 mph from the W.
    Night Details
    Mostly clear with a slight chance of rain. Chance of precipitation 25%. Low temperature around 46F. Dew point will be around 45F with an average humidity of 77%. Winds will be 5 mph from the NW.