Arkansas Weather Forecast

    • 68
    • 86

    Thunderstorms

    • 58
    • 80

    Chance Rain Showers

    • 64
    • 75

    Mostly Cloudy

    • 62
    • 82

    Rain Showers Likely

    • 61
    • 69

    Chance Rain Showers

    • 57
    • 67

    Chance Rain Showers

Today 17 Sep Hardy

Partly sunny with scattered Showers with isolated Thunderstorms late this Morning, then mostly cloudy with numerous Showers and scattered Thunderstorms this afternoon. Highs in the upper 80s. Except in the lower 80s at the higher Elevations. West Winds around 5 Mph. Chance of rain 70 percent.

Tonight 17 Sep Hardy

Mostly cloudy with isolated Showers in the Evening, then partly cloudy after midnight. Patchy fog after midnight. Lows in the upper 60s. West Winds around 5 Mph, becoming northwest after midnight. Chance of rain 20 percent.

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Arkansas Temperature Statistics

September Temperature

Petersburg, Grant County Airport (22.4 miles)

  • Lowest 15 September, 2026

    48.2 °F

  • Average September

    72.9 °F

  • Highest 2 September, 2026

    96.3 °F

Climate (2021–2026)

Petersburg, Grant County Airport (22.4 miles)

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  • Average Low 2021–2026

    44.3 °F

  • Average 2021–2026

    55.4 °F

  • Average High 2021–2026

    67.4 °F
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