Meramec State Park Weather Forecast

    • 69
    • 88

    Thunderstorms Likely

    • 69
    • 86

    Chance Thunderstorms

    • 69
    • 88

    Chance Thunderstorms

    • 68
    • 87

    Chance Thunderstorms

    • 70
    • 89

    Chance Thunderstorms

    • 71
    • 91

    Chance Thunderstorms

    • 68
    • 88

    Chance Rain Showers

Today 6 Jul Franklin

Showers and Thunderstorms likely. Near steady temperature in the mid 80s. West Winds 5 to 10 Mph. Chance of rain 70 percent.

Tonight 6 Jul Franklin

Mostly cloudy. Showers and Thunderstorms Likely, mainly in the evening. Patchy fog after midnight. Lows around 70. West Winds around 5 Mph. Chance of rain 70 percent.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Meramec State Park Temperature Statistics

July Temperature

Washington Regional Airport (26.1 miles)

  • Lowest 2 July, 2025

    64.4 °F

  • Average July

    78.1 °F

  • Highest 3 July, 2025

    91.4 °F

Climate (2020–Present)

Washington Regional Airport (26.1 miles)

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

  • Average Low 2020–2025

    47.3 °F

  • Average 2020–2025

    57.8 °F

  • Average High 2020–2025

    68.6 °F
Get WillyWeather+ to remove ads