Clear Lake Weather Forecast

    • 67
    • 87

    Sunny

    • 70
    • 91

    Mostly Sunny

    • 71
    • 92

    Mostly Sunny

    • 73
    • 91

    Slight Chance Thunderstorms

    • 74
    • 91

    Chance Thunderstorms

    • 72
    • 92

    Chance Thunderstorms

    • 68
    • 89

    Mostly Sunny

Today 13 Jul Sangamon

Sunny. Near steady temperature in the mid 80s. Northeast Winds 5 to 10 Mph.

Tonight 13 Jul Sangamon

Clear. Lows in the mid 60s. Northeast Winds around 5 Mph this Evening, becoming light and variable.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Clear Lake Temperature Statistics

July Temperature

Springfield - Abraham Lincoln Capital Airport (6.2 miles)

  • Lowest 8 July, 2026

    66.7 °F

  • Average July

    79 °F

  • Highest 2 July, 2026

    92.6 °F

Climate (2021–2026)

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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