Johnson Lake Weather Forecast

    • 51
    • 74

    Chance Rain Showers

    • 30
    • 57

    Mostly Cloudy

    • 38
    • 54

    Partly Sunny

    • 55
    • 63

    Mostly Cloudy

    • 61
    • 72

    Mostly Cloudy

    • 58
    • 76

    Partly Sunny

Today 13 Dec Grimes

Areas of dense fog in the morning. Mostly cloudy with a slight chance of Showers. A slight chance of Thunderstorms in the afternoon. Highs in the mid 70s. Southeast Winds around 5 Mph. Chance of rain 20 percent.

Tonight 13 Dec Grimes

Mostly cloudy. A chance of Showers after midnight. Lows in the lower 50s. Northeast Winds around 5 Mph, increasing to north 10 to 15 Mph with Gusts up to 25 Mph after midnight. Chance of rain 40 percent.

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Johnson Lake Temperature Statistics

December Temperature

Bryan Coulter Field (14.3 miles)

  • Lowest 9 December, 2025

    33.8 °F

  • Average December

    50.6 °F

  • Highest 10 December, 2025

    70.3 °F

Climate (2020–Present)

Bryan Coulter Field (14.3 miles)

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  • Average Low 2020–2025

    59.4 °F

  • Average 2020–2025

    69.2 °F

  • Average High 2020–2025

    79.9 °F
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