Frontenac Weather Forecast

    • 65
    • 80

    Chance Thunderstorms

    • 62
    • 77

    Rain Showers

    • 59
    • 73

    Rain Showers

    • 60
    • 77

    Chance Rain Showers

    • 63
    • 80

    Partly Sunny

    • 63
    • 80

    Chance Rain Showers

Today 27 Jul Jefferson

Partly sunny. Highs Ranging from the mid 70s on the tug hill to around 80 across the lower Elevations. Southwest Winds 10 Mph or less.

Tonight 27 Jul Jefferson

Partly cloudy in the Evening, then mostly cloudy with a chance of Showers and Thunderstorms overnight. Lows in the mid 60s. Light south Winds. Chance of rain 40 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Frontenac Temperature Statistics

July Temperature

Watertown, Watertown International Airport (18 miles)

  • Lowest 17 July, 2026

    47.6 °F

  • Average July

    70 °F

  • Highest 1 July, 2026

    91.7 °F

Climate (2021–2026)

Watertown, Watertown International Airport (18 miles)

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  • Average Low 2021–2026

    38.3 °F

  • Average 2021–2026

    48.2 °F

  • Average High 2021–2026

    57.6 °F
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