Weather forecast for: Williamstown WV
Last Update: 7:48 pm EDT Sep 10, 2026
Tonight: A chance of showers and thunderstorms before 2am, then a slight chance of showers. Patchy dense fog after 10pm. Otherwise, mostly cloudy, with a low around 66. Calm wind. Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Friday: Patchy dense fog before 10am. Otherwise, mostly cloudy, with a high near 82. Light northeast wind.
Friday Night: Partly cloudy, with a low around 66. Calm wind.
Saturday: A chance of showers, then showers and possibly a thunderstorm after 2pm. High near 84. Calm wind becoming southwest 5 to 7 mph in the afternoon. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Saturday Night: Showers and possibly a thunderstorm before 11pm, then showers likely between 11pm and 2am. Low around 68. Calm wind. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Sunday: Mostly sunny, with a high near 85.
Sunday Night: Partly cloudy, with a low around 64.
Monday: Mostly sunny, with a high near 82.
Monday Night: Mostly clear, with a low around 62.
Tuesday: Sunny, with a high near 87.
Tuesday Night: Mostly clear, with a low around 67.
Wednesday: A 40 percent chance of showers. Mostly sunny, with a high near 86.
Wednesday Night: A 40 percent chance of showers. Mostly cloudy, with a low around 67.
Thursday: A 50 percent chance of showers. Partly sunny, with a high near 84.