Big Rock Lake Weather Forecast

    • 63
    • 86

    Partly Sunny

    • 46
    • 69

    Rain Showers Likely

    • 46
    • 73

    Partly Sunny

    • 52
    • 75

    Mostly Cloudy

    • 59
    • 74

    Mostly Cloudy

    • 62
    • 81

    Slight Chance Thunderstorms

Today 17 Apr Harrison

Partly cloudy. Highs in the upper 80s. South Winds 10 to 15 Mph with Gusts up to 25 Mph.

Tonight 17 Apr Harrison

Partly cloudy. A slight chance of Showers after midnight. Lows in the lower 60s. South Winds 5 to 10 Mph with Gusts up to 25 Mph. Chance of rain 20 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Big Rock Lake Temperature Statistics

April Temperature

Longview - East Texas Regional Airport (14.3 miles)

  • Lowest 7 April, 2026

    43.6 °F

  • Average April

    69.1 °F

  • Highest 1 April, 2026

    86.6 °F

Climate (2021–Present)

Longview - East Texas Regional Airport (14.3 miles)

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  • Average Low 2021–2026

    57.5 °F

  • Average 2021–2026

    67.8 °F

  • Average High 2021–2026

    79.2 °F
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