Marathon Weather Forecast

    • 64
    • 87

    Thunderstorms

    • 65
    • 89

    Slight Chance Thunderstorms

    • 65
    • 88

    Chance Rain Showers

    • 63
    • 88

    Rain Showers Likely

    • 59
    • 84

    Chance Rain Showers

    • 58
    • 83

    Mostly Sunny

Today 26 Sep Central Brewster County

Mostly cloudy this Morning, then becoming mostly sunny. A slight chance of Showers. A slight chance of Thunderstorms this afternoon. Highs in the upper 80s. South Winds around 5 Mph. Chance of rain 20 percent.

Tonight 26 Sep Central Brewster County

Partly cloudy. Lows in the upper 60s. Northeast Winds around 5 Mph.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Marathon Temperature Statistics

September Temperature

Alpine, Alpine-Casparis Municipal Airport (28.6 miles)

  • Lowest 24 September, 2026

    61.9 °F

  • Average September

    78.2 °F

  • Highest 12 September, 2026

    94.6 °F

Climate (2021–2026)

Alpine, Alpine-Casparis Municipal Airport (28.6 miles)

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

  • Average Low 2021–2026

    52.2 °F

  • Average 2021–2026

    65.3 °F

  • Average High 2021–2026

    78.4 °F
Get WillyWeather+ to remove ads