Sunset Lake Weather Forecast

    • 69
    • 97

    Thunderstorms Likely

    • 72
    • 92

    Chance Thunderstorms

    • 69
    • 94

    Slight Chance Thunderstorms

    • 69
    • 91

    Slight Chance Thunderstorms

    • 66
    • 91

    Chance Thunderstorms

    • 59
    • 82

    Chance Thunderstorms

Today 15 Sep Macoupin

Sunny. A chance of Showers and Thunderstorms this afternoon. Warmer with Highs in the upper 90s. Southwest Winds 10 to 15 Mph. Chance of rain 50 percent. Heat index Values up to 105.

Tonight 15 Sep Macoupin

Mostly cloudy with a chance of Showers and Thunderstorms. Lows around 70. Southeast Winds around 5 Mph, becoming northeast after midnight. Chance of rain 50 percent.

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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, 2026

    60.8 °F

  • Average September

    78.4 °F

  • Highest 5 September, 2026

    98.6 °F

Climate (2021–2026)

Litchfield Municipal Airport (21.1 miles)

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  • Average Low 2021–2026

    45.4 °F

  • Average 2021–2026

    54.8 °F

  • Average High 2021–2026

    64.5 °F
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