Keystone Weather Forecast

    • 58
    • 74

    Rain Showers Likely

    • 63
    • 73

    Rain Showers

    • 65
    • 81

    Rain Showers Likely

    • 67
    • 82

    Chance Thunderstorms

    • 62
    • 81

    Chance Rain Showers

    • 58
    • 76

    Chance Rain Showers

Today 15 Sep Benton

Mostly cloudy. Showers with a chance of Thunderstorms in the Morning, then a slight chance of Showers and Thunderstorms in the afternoon. Highs in the mid 70s. West Winds 5 to 10 Mph, becoming northwest in the afternoon. Chance of rain 90 percent.

Tonight 15 Sep Benton

Mostly cloudy. A chance of Showers after midnight. Lows in the upper 50s. North Winds 5 to 10 Mph. Chance of rain 40 percent.

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  • Temperature Real-Time

Keystone Temperature Statistics

September Temperature

Vinton, Vinton Veterans Memorial Airpark Airport (17.4 miles)

  • Lowest 10 September, 2026

    57.2 °F

  • Average September

    75.2 °F

  • Highest 1 September, 2026

    93.2 °F

Climate (2021–2026)

Vinton, Vinton Veterans Memorial Airpark Airport (17.4 miles)

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  • Average Low 2021–2026

    40.4 °F

  • Average 2021–2026

    51 °F

  • Average High 2021–2026

    61.9 °F
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