Cynthia Slough Weather Forecast

    • 61
    • 85

    Chance Rain Showers

    • 60
    • 79

    Rain Showers Likely

    • 61
    • 78

    Chance Thunderstorms

    • 61
    • 78

    Chance Thunderstorms

    • 58
    • 78

    Chance Rain Showers

    • 54
    • 75

    Slight Chance Rain Showers

Today 18 Sep Sauk

Partly sunny with isolated light Showers. Highs in the mid 80s. Southeast Winds around 5 Mph. Chance of Showers 20 percent.

Tonight 18 Sep Sauk

Mostly cloudy with scattered light Showers and slight chance of Thunderstorms. Patchy fog early in the morning. Lows in the lower 60s. East Winds up to 10 Mph. Chance of precipitation 30 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Cynthia Slough Temperature Statistics

September Temperature

Lone Rock Tri-County Regional Airport (6.2 miles)

  • Lowest 7 September, 2025

    37.9 °F

  • Average September

    62.9 °F

  • Highest 16 September, 2025

    88 °F

Climate (2020–Present)

Lone Rock Tri-County Regional Airport (6.2 miles)

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  • Average Low 2020–2025

    38.6 °F

  • Average 2020–2025

    49.2 °F

  • Average High 2020–2025

    60 °F
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