Deacon Thomas Lake Weather Forecast

    • 68
    • 88

    Chance Rain Showers

    • 62
    • 85

    Partly Sunny

    • 60
    • 82

    Partly Sunny

    • 63
    • 81

    Mostly Cloudy

    • 68
    • 83

    Rain Showers Likely

    • 63
    • 85

    Chance Rain Showers

Today 4 Sep Sauk

Warm and humid. Partly sunny. Patchy fog in the morning. Chance of light Showers in the morning. Slight chance of light Showers and Thunderstorms early in the afternoon. Highs in the upper 80s. Southwest Winds up to 10 Mph. Chance of precipitation 30 percent. Highest heat index Readings 95 to 99 in the afternoon.

Tonight 4 Sep Sauk

Partly cloudy with chance of light Showers and Thunderstorms after Midnight, then mostly cloudy with Showers likely and slight chance of Thunderstorms early in the morning. Patchy fog early in the morning. Near steady temperature in the lower 70s. South Winds up to 10 Mph. Chance of precipitation 70 percent.

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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 1 September, 2026

    69.1 °F

  • Average September

    77.1 °F

  • Highest 1 September, 2026

    89.1 °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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