Slippery Rock Weather Forecast

    • 56
    • 85

    Thunderstorms

    • 51
    • 65

    Mostly Cloudy

    • 52
    • 68

    Partly Sunny

    • 58
    • 68

    Chance Rain Showers

    • 61
    • 73

    Rain Showers Likely

    • 53
    • 70

    Rain Showers Likely

Today 21 Sep Butler

Mostly sunny. A slight chance of Showers and Thunderstorms in the afternoon. Unseasonably warm. Humid with Highs in the mid 80s. South Winds 10 to 15 Mph. Gusts up to 30 Mph in the afternoon. Chance of rain 20 percent.

Tonight 21 Sep Butler

Mainly clear. Warm. Near steady temperature in the upper 60s. South Winds around 10 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Slippery Rock Temperature Statistics

September Temperature

New Castle, New Castle Municipal Airport (18.6 miles)

  • Lowest 9 September, 2018

    53.6 °F
  • Average September

    68 °F
  • Highest 13 September, 2018

    87.1 °F

Climate (2010–Present)

New Castle, New Castle Municipal Airport (18.6 miles)

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  • Average Low 2010–Present

    40.9 °F
  • Average 2010–Present

    51 °F
  • Average High 2010–Present

    61.3 °F
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