Clear Lake Weather Forecast

    • 36
    • 61

    Mostly Cloudy

    • 31
    • 57

    Partly Sunny

    • 33
    • 61

    Mostly Sunny

    • 40
    • 71

    Mostly Sunny

    • 41
    • 71

    Slight Chance Thunderstorms

    • 42
    • 73

    Partly Sunny

Today 29 Apr Brown

Partly sunny. Patchy fog in the morning. A slight chance of rain Showers in the afternoon. Highs around 60. West Winds up to 10 Mph. Chance of precipitation 20 percent.

Tonight 29 Apr Brown

Mostly cloudy with a slight chance of rain Showers in the Evening, then partly cloudy after midnight. Lows in the mid 30s. North Winds up to 10 Mph in the Evening, becoming light and variable. Chance of precipitation 20 percent.

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Clear Lake Temperature Statistics

April Temperature

Ainsworth Regional Airport (21.7 miles)

  • Lowest 18 April, 2026

    22.5 °F

  • Average April

    46.6 °F

  • Highest 16 April, 2026

    83.8 °F

Climate (2021–Present)

Ainsworth Regional Airport (21.7 miles)

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  • Average Low 2021–2026

    38 °F

  • Average 2021–2026

    49.9 °F

  • Average High 2021–2026

    62.5 °F
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