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.
Meramec State Park Temperature Statistics
July Temperature
Washington Regional Airport (26.1 miles)
Lowest 2 July, 2025
64.4 °FAverage July
78.1 °FHighest 3 July, 2025
91.4 °F
Climate (2020–Present)
Washington Regional Airport (26.1 miles)
Average Low 2020–2025
47.3 °FAverage 2020–2025
57.8 °FAverage High 2020–2025
68.6 °F