Johnston Lake Weather Forecast

    • 50
    • 83

    Slight Chance Rain Showers

    • 49
    • 66

    Partly Sunny

    • 58
    • 81

    Mostly Sunny

    • 61
    • 85

    Mostly Cloudy

    • 64
    • 86

    Partly Sunny

    • 64
    • 86

    Chance Rain Showers

Today 27 Mar Gregg

Partly cloudy this Morning, then mostly cloudy with a slight chance of Showers this afternoon. Highs in the lower 80s. Southwest Winds 5 to 10 Mph, becoming northwest this afternoon. Chance of rain 20 percent.

Tonight 27 Mar Gregg

Mostly cloudy. A slight chance of Showers in the evening. Windy, cooler. Less humid with Lows around 50. Northeast Winds 15 to 20 Mph with Gusts up to 30 Mph. Chance of rain 20 percent.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Johnston Lake Temperature Statistics

March Temperature

Longview - East Texas Regional Airport (9.3 miles)

  • Lowest 17 March, 2026

    27.6 °F

  • Average March

    66.1 °F

  • Highest 21 March, 2026

    89.7 °F

Climate (2021–Present)

Longview - East Texas Regional Airport (9.3 miles)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2021–2026

    57.3 °F

  • Average 2021–2026

    67.7 °F

  • Average High 2021–2026

    79.1 °F
Get WillyWeather+ to remove ads