Sunset Lake Weather Forecast

    • 62
    • 91

    Mostly Sunny

    • 60
    • 91

    Mostly Sunny

    • 61
    • 90

    Mostly Sunny

    • 64
    • 91

    Slight Chance Thunderstorms

    • 62
    • 85

    Chance Thunderstorms

    • 60
    • 81

    Chance Rain Showers

Today 15 Sep Macoupin

Sunny. Highs in the lower 90s. East Winds 5 to 10 Mph.

Tonight 15 Sep Macoupin

Mostly clear. Lows in the lower 60s. East Winds around 5 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Sunset Lake Temperature Statistics

September Temperature

Litchfield Municipal Airport (21.1 miles)

  • Lowest 7 September, 2025

    38.5 °F

  • Average September

    65.8 °F

  • Highest 13 September, 2025

    94.8 °F

Climate (2020–Present)

Litchfield Municipal Airport (21.1 miles)

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  • Average Low 2020–2025

    45 °F

  • Average 2020–2025

    54.2 °F

  • Average High 2020–2025

    63.8 °F
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