Weather WorldSullivan County, NH 7-Day Night Weather Forecast
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Sullivan County, NH Weather Forecast
Sullivan County, NH Weather Forecast Date: 801 AM EDT Thu Sep 17 2026
The area/counties/county of: Sullivan, including the cities of: Claremont, Cornish, Unity, Croydon, Goshen, Grantham, Lempster, Newport, and Charlestown.or toggle through each period.
Today... Mostly cloudy. A chance of sprinkles this morning, then showers with a slight chance of thunderstorms this afternoon. Highs in the lower 70s. Light and variable winds. Chance of rain 90%.
Tonight... Mostly cloudy. Showers with a slight chance of thunderstorms in the evening, then a slight chance of showers after midnight. Patchy fog. Lows in the upper 50s. Light and variable winds, becoming northwest around 10 mph after midnight. Chance of rain 90%.
Friday... Mostly sunny. Less humid with highs in the upper 60s. Northwest winds around 10 mph with gusts up to 25 mph.
Friday Night... Partly cloudy. Lows in the lower 40s. Northwest winds around 10 mph with gusts up to 25 mph in the evening, becoming light and variable.
Saturday... Partly sunny. Highs in the lower 60s. Light and variable winds.
Saturday Night... Partly cloudy in the evening, then mostly cloudy with a chance of showers after midnight. Lows in the mid 40s. Chance of rain 30%.
Sunday... Showers. Highs in the mid 50s. Chance of rain 80%.
Sunday Night... Showers likely in the evening. Lows in the mid 40s. Chance of rain 70%.
Monday... Partly sunny. Highs in the lower 60s.
Monday Night... Partly cloudy. Lows in the lower 40s.
Tuesday... Partly sunny. Highs in the lower 60s.
Tuesday Night... Partly cloudy in the evening, then becoming mostly clear. Lows in the lower 40s.
POP = Probability of Precipitation
Sullivan County Radar Loop
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