Clear Lake Weather Forecast

    • 65
    • 84

    Slight Chance Thunderstorms

    • 65
    • 85

    Mostly Sunny

    • 70
    • 87

    Mostly Sunny

    • 70
    • 90

    Rain Showers Likely

    • 69
    • 86

    Rain Showers Likely

    • 68
    • 86

    Chance Rain Showers

    • 68
    • 88

    Mostly Sunny

Today 6 Jul Sangamon

Mostly sunny with a slight chance of Showers and Thunderstorms. Near steady temperature in the lower 80s. North Winds 5 to 10 Mph. Chance of rain 20 percent.

Tonight 6 Jul Sangamon

Partly cloudy. A slight chance of Showers and Thunderstorms in the evening. Lows in the mid 60s. Northeast Winds 5 to 10 Mph. Chance of rain 20 percent.

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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 4 July, 2026

    71.1 °F

  • Average July

    81.6 °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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