Deacon Thomas Lake Weather Forecast

    • 47
    • 64

    Mostly Cloudy

    • 43
    • 63

    Partly Sunny

    • 45
    • 66

    Mostly Sunny

    • 47
    • 67

    Mostly Cloudy

    • 47
    • 68

    Partly Sunny

    • 50
    • 67

    Mostly Cloudy

Today 21 Sep Sauk

Cloudy. Scattered Sprinkles in the afternoon. Patchy drizzle late in the afternoon. Highs in the lower 60s. Northeast Winds 10 to 15 Mph.

Tonight 21 Sep Sauk

Mostly cloudy. Scattered Sprinkles through the night. Lows in the mid 40s. Northeast Winds 5 to 10 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 14 September, 2026

    42.7 °F

  • Average September

    68.8 °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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