Clear Lake Weather Forecast

    • 57
    • 76

    Mostly Sunny

    • 56
    • 77

    Rain Showers Likely

    • 66
    • 83

    Rain Showers

    • 57
    • 76

    Mostly Sunny

    • 58
    • 79

    Mostly Sunny

    • 64
    • 82

    Chance Rain Showers

Today 15 Jun Sangamon

Sunny. Highs in the mid 70s. West Winds 5 to 10 Mph.

Tonight 15 Jun Sangamon

Mostly clear. Lows in the mid 50s. Southwest Winds 5 to 10 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Clear Lake Temperature Statistics

June Temperature

Springfield - Abraham Lincoln Capital Airport (6.2 miles)

  • Lowest 3 June, 2026

    50.6 °F

  • Average June

    75.7 °F

  • Highest 10 June, 2026

    90.6 °F

Climate (2021–Present)

Springfield - Abraham Lincoln Capital Airport (6.2 miles)

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  • Average Low 2021–2026

    45 °F

  • Average 2021–2026

    55.5 °F

  • Average High 2021–2026

    65.6 °F
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