Thomaston Weather Forecast

    • 66
    • 78

    Thunderstorms Likely

    • 66
    • 87

    Slight Chance Rain Showers

    • 59
    • 83

    Chance Thunderstorms

    • 56
    • 78

    Sunny

    • 59
    • 81

    Mostly Sunny

    • 62
    • 84

    Partly Sunny

Today 31 May Upson

Showers and Thunderstorms likely. Near steady temperature in the mid 70s. Light east Winds. Chance of rain 70 percent.

Tonight 31 May Upson

Mostly cloudy. A chance of Showers and Thunderstorms in the evening. Lows in the mid 60s. Light east Winds in the Evening, becoming light and variable. Chance of rain 40 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Thomaston Temperature Statistics

May Temperature

Thomaston, Thomaston-Upson County Airport (5.6 miles)

  • Lowest 4 May, 2026

    42.8 °F

  • Average May

    68 °F

  • Highest 17 May, 2026

    89.6 °F

Climate (2021–Present)

Thomaston, Thomaston-Upson County Airport (5.6 miles)

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  • Average Low 2021–2026

    54.5 °F

  • Average 2021–2026

    64.1 °F

  • Average High 2021–2026

    75.2 °F
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