Deacon Thomas Lake Weather Forecast

    • 58
    • 83

    Decreasing Clouds

    • 57
    • 81

    Partly Sunny

    • 62
    • 81

    Mostly Cloudy

    • 68
    • 85

    Rain Showers Likely

    • 60
    • 86

    Partly Sunny

    • 55
    • 78

    Partly Sunny

Today 5 Sep Sauk

Partly sunny. Areas of fog in the morning. Highs in the lower 80s. Northeast Winds up to 10 Mph.

Tonight 5 Sep Sauk

Partly cloudy after midnight then becoming mostly cloudy. Areas of fog. Near steady temperature in the upper 60s. Northeast Winds up to 5 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Deacon Thomas Lake Temperature Statistics

September Temperature

Lone Rock Tri-County Regional Airport (16.2 miles)

  • Lowest 2 September, 2026

    69.1 °F

  • Average September

    78.2 °F

  • Highest 1 September, 2026

    89.7 °F

Climate (2021–2026)

Lone Rock Tri-County Regional Airport (16.2 miles)

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  • Average Low 2021–2026

    38.6 °F

  • Average 2021–2026

    49.5 °F

  • Average High 2021–2026

    60.4 °F
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