10-Day Weather Forecast - Saint Clair, PA

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  • 59|45°F
    Rain
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    Today

    59°F

    Partly sunny this morning then mostly cloudy with rain this afternoon. Not as cool with highs in the upper 50s. South winds 5 to 10 mph with gusts up to 30 mph. Chance of rain 90 percent.

    Tonight

    45°F

    Mostly cloudy. Rain with a slight chance of thunderstorms in the evening. Lows around 40. Southwest winds 5 to 10 mph becoming northwest after midnight. Gusts up to 25 mph. Chance of rain 80 percent.

    Hourly details
  • Weekend Weather

  • Day

    53°F

    Mostly sunny. Highs in the lower 50s. North winds 5 to 10 mph with gusts up to 20 mph.

    Night

    42°F

    Mostly cloudy. Lows in the upper 30s. Northeast winds around 5 mph becoming southeast after midnight.

    Hourly details
  • Day

    64°F

    Mostly cloudy in the morning then becoming partly sunny. Not as cool with highs in the mid 60s. South winds 5 to 10 mph with gusts up to 20 mph.

    Night

    49°F

    Rain likely. Mild. Lows in the lower 40s. Chance of rain 70 percent.

    Hourly details
  • Day

    51°F

    Mostly cloudy with rain likely in the morning then mostly sunny with a chance of rain in the afternoon. Much cooler with highs in the upper 40s. Chance of rain 70 percent.

    Night

    27°F

    Partly cloudy. Much cooler with lows in the mid 20s.

    Hourly details
  • Day

    44°F

    Mostly sunny. Highs in the mid 40s.

    Night

    34°F

    Mostly cloudy. Lows in the lower 30s.

    Hourly details
  • Day

    45°F

    Partly sunny. Highs in the upper 40s.

    Night

    33°F

    Partly cloudy in the evening then mostly cloudy with a chance of rain and snow after midnight. Lows in the lower 30s. Chance of precipitation 30 percent.

    Hourly details
  • Day

    53°F

    Mostly cloudy with a chance of rain and snow in the morning then partly sunny in the afternoon. Highs in the mid 50s. Chance of precipitation 30 percent.

    Night

    42°F

    Cloudy with a chance of rain. Chance of precipitation 50%. Low temperature around 42F. Dew point will be around 39F with an average humidity of 74%. Winds will be 7 mph from the SW.

  • Day

    46°F

    Cloudy with a chance of rain. Chance of precipitation 50%. High temperature around 46F. Dew point will be around 33F with an average humidity of 65%. Winds will be 10 mph from the NW.

    Night

    28°F

    Partly cloudy with a slight chance of rain-snow mix. Chance of precipitation 25%. Low temperature around 28F. Dew point will be around 23F with an average humidity of 62%. Winds will be 9 mph from the NW.

  • Weekend Weather

  • Day

    43°F

    Sunny. High temperature around 43F. Dew point will be around 19F with an average humidity of 49%. Winds will be 7 mph from the NW.

    Night

    31°F

    Clear. Low temperature around 31F. Dew point will be around 22F with an average humidity of 58%. Winds will be 2 mph from the W.