26187 Weather (Williamstown, WV)

Weather forecast for: Williamstown WV

Last Update: 1:05 am EDT Sep 11, 2026

Overnight: Showers likely and possibly a thunderstorm, then showers after 2am. Low around 66. Calm wind. Chance of precipitation is 80%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Friday: A 30 percent chance of showers before 8am. Cloudy, then gradually becoming mostly sunny, with a high near 82. Light east wind.

Friday Night: Mostly 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.