Williamstown Weather Forecast
- 67
- 90
Chance Thunderstorms
- 64
- 85
Mostly Sunny
- 68
- 90
Chance Thunderstorms
- 67
- 88
Chance Thunderstorms
- 66
- 86
Slight Chance Thunderstorms
- 66
- 87
Mostly Sunny
Today 17 Aug Wood
Mostly sunny. A chance of Showers and Thunderstorms in the afternoon. Hot with Highs in the lower 90s. Southwest Winds around 5 Mph, becoming northwest around 5 Mph in the afternoon. Chance of rain 40 percent.
Tonight 17 Aug Wood
Mostly clear. Lows in the upper 60s. Light and variable Winds.
Williamstown Temperature Statistics
August Temperature
Parkersburg, Mid-Ohio Valley Regional Airport (3.7 miles)
Lowest 3 August, 2025
56.6 °FAverage August
74.2 °FHighest 12 August, 2025
93.7 °F
Climate (2020–Present)
Parkersburg, Mid-Ohio Valley Regional Airport (3.7 miles)
Average Low 2020–2025
45.4 °FAverage 2020–2025
55.5 °FAverage High 2020–2025
66.2 °F