Marietta Weather Forecast
- 67
- 81
Chance Thunderstorms
- 65
- 83
Chance Thunderstorms
- 66
- 85
Slight Chance Thunderstorms
- 66
- 85
Partly Sunny
- 69
- 89
Sunny
- 70
- 91
Mostly Sunny
- 68
- 89
Slight Chance Thunderstorms
Today 10 Jul Washington
Partly sunny with a chance of Showers and Thunderstorms. Some Thunderstorms may produce heavy rainfall. Highs around 80. Southwest Winds around 5 Mph. Chance of rain 50 percent.
Tonight 10 Jul Washington
Mostly cloudy. A chance of Showers and Thunderstorms, mainly this evening. Some Thunderstorms may produce heavy rainfall. Lows in the upper 60s. Southwest Winds around 5 Mph this Evening, becoming light and variable. Chance of rain 50 percent.
Marietta Temperature Statistics
July Temperature
Parkersburg, Mid-Ohio Valley Regional Airport (4.3 miles)
Lowest 8 July, 2026
69.1 °FAverage July
80.5 °FHighest 3 July, 2026
94.6 °F
Climate (2021–2026)
Parkersburg, Mid-Ohio Valley Regional Airport (4.3 miles)
Average Low 2021–2026
45.3 °FAverage 2021–2026
55.7 °FAverage High 2021–2026
66.5 °F