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Grantsville, WV Weather Forecast
Grantsville, WV Weather Forecast Date: 518 AM EDT Fri Sep 18 2026
The area/counties/county of: Calhoun, including the city of Grantsville.or toggle through each period.
Today... Mostly cloudy. Areas of fog this morning. Showers likely with a chance of thunderstorms this morning, then a slight chance of showers and thunderstorms this afternoon. Highs around 80. North winds around 5 mph. Chance of rain 70%.
Tonight... Mostly cloudy in the evening, then becoming partly cloudy. Lows in the lower 60s. Northeast winds around 5 mph.
Saturday... Mostly sunny. Highs in the lower 80s. Light and variable winds.
Saturday Night... Mostly clear in the evening, then mostly cloudy with a chance of showers after midnight. Lows in the mid 60s. Southeast winds around 5 mph. Gusts up to 20 mph after midnight. Chance of rain 50%.
Sunday... Showers likely. A chance of thunderstorms in the afternoon. Humid with highs in the lower 80s. Southwest winds around 5 mph. Chance of rain 70%.
Sunday Night... Showers likely with a chance of thunderstorms in the evening, then showers likely after midnight. Lows in the mid 60s. Chance of rain 70%.
Monday... Mostly cloudy with a chance of showers and thunderstorms. Highs in the upper 70s. Lows in the mid 60s. Chance of rain 50%.
Monday Night... Mostly cloudy with a chance of showers and thunderstorms. Highs in the upper 70s. Lows in the mid 60s. Chance of rain 50%.
Tuesday... Showers likely with a chance of thunderstorms. Highs in the mid 70s. Lows around 60. Chance of rain 70%.
Tuesday Night... Showers likely with a chance of thunderstorms. Highs in the mid 70s. Lows around 60. Chance of rain 70%.
Wednesday... Showers likely. Highs in the lower 70s. Chance of rain 60%.
Wednesday Night... Mostly cloudy. Showers likely, mainly in the evening. Lows in the mid 50s. Chance of rain 60%.
POP = Probability of Precipitation
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