Smithville Weather Forecast

    • 60
    • 70

    Chance Rain Showers

    • 57
    • 74

    Mostly Cloudy

    • 55
    • 74

    Chance Rain Showers

    • 48
    • 69

    Partly Sunny

    • 55
    • 68

    Rain Showers

    • 50
    • 68

    Chance Rain Showers

Today 15 Sep Jefferson

Partly sunny and breezy. Highs Ranging from the mid 60s on the tug hill to the upper 60s across the lower Elevations. South Winds 5 to 10 Mph, increasing to 10 to 15 Mph.

Tonight 15 Sep Jefferson

Mostly cloudy. A chance of Showers through the early overnight. Breezy with Lows Ranging from the mid 50s on the tug hill to the lower 60s across the lower Elevations. South Winds 10 to 15 Mph, Diminishing to 5 to 10 Mph. Chance of rain 40 percent.

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Smithville Temperature Statistics

September Temperature

Watertown, Watertown International Airport (8.7 miles)

  • Lowest 12 September, 2026

    42.7 °F

  • Average September

    65.8 °F

  • Highest 2 September, 2026

    83.6 °F

Climate (2021–2026)

Watertown, Watertown International Airport (8.7 miles)

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  • Average Low 2021–2026

    38.2 °F

  • Average 2021–2026

    48.2 °F

  • Average High 2021–2026

    57.6 °F
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