Deacon Thomas Lake Weather Forecast

    • 54
    • 79

    Sunny

    • 61
    • 80

    Slight Chance Rain Showers

    • 52
    • 81

    Partly Sunny

    • 58
    • 75

    Rain Showers Likely

    • 56
    • 81

    Rain Showers Likely

    • 51
    • 70

    Mostly Cloudy

Today 10 Sep Sauk

Sunny. Patchy fog in the morning. Highs in the upper 70s. Northwest Winds up to 5 Mph.

Tonight 10 Sep Sauk

Clear. Patchy fog early in the morning. Lows in the mid 50s. Southeast 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 7 September, 2026

    56.6 °F

  • Average September

    74.9 °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

    38.7 °F

  • Average 2021–2026

    49.6 °F

  • Average High 2021–2026

    60.4 °F
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